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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 13:44:03 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 13:44:03 +0000
commit293913568e6a7a86fd1479e1cff8e2ecb58d6568 (patch)
treefc3b469a3ec5ab71b36ea97cc7aaddb838423a0c /contrib/ltree
parentInitial commit. (diff)
downloadpostgresql-16-293913568e6a7a86fd1479e1cff8e2ecb58d6568.tar.xz
postgresql-16-293913568e6a7a86fd1479e1cff8e2ecb58d6568.zip
Adding upstream version 16.2.upstream/16.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'contrib/ltree')
-rw-r--r--contrib/ltree/.gitignore4
-rw-r--r--contrib/ltree/Makefile33
-rw-r--r--contrib/ltree/_ltree_gist.c558
-rw-r--r--contrib/ltree/_ltree_op.c326
-rw-r--r--contrib/ltree/crc32.c40
-rw-r--r--contrib/ltree/crc32.h12
-rw-r--r--contrib/ltree/data/_ltree.data1000
-rw-r--r--contrib/ltree/data/ltree.data1006
-rw-r--r--contrib/ltree/expected/ltree.out8134
-rw-r--r--contrib/ltree/lquery_op.c281
-rw-r--r--contrib/ltree/ltree--1.0--1.1.sql115
-rw-r--r--contrib/ltree/ltree--1.1--1.2.sql139
-rw-r--r--contrib/ltree/ltree--1.1.sql872
-rw-r--r--contrib/ltree/ltree.control6
-rw-r--r--contrib/ltree/ltree.h317
-rw-r--r--contrib/ltree/ltree_gist.c749
-rw-r--r--contrib/ltree/ltree_io.c816
-rw-r--r--contrib/ltree/ltree_op.c590
-rw-r--r--contrib/ltree/ltreetest.sql21
-rw-r--r--contrib/ltree/ltxtquery_io.c629
-rw-r--r--contrib/ltree/ltxtquery_op.c111
-rw-r--r--contrib/ltree/meson.build52
-rw-r--r--contrib/ltree/sql/ltree.sql411
23 files changed, 16222 insertions, 0 deletions
diff --git a/contrib/ltree/.gitignore b/contrib/ltree/.gitignore
new file mode 100644
index 0000000..5dcb3ff
--- /dev/null
+++ b/contrib/ltree/.gitignore
@@ -0,0 +1,4 @@
+# Generated subdirectories
+/log/
+/results/
+/tmp_check/
diff --git a/contrib/ltree/Makefile b/contrib/ltree/Makefile
new file mode 100644
index 0000000..770769a
--- /dev/null
+++ b/contrib/ltree/Makefile
@@ -0,0 +1,33 @@
+# contrib/ltree/Makefile
+
+MODULE_big = ltree
+OBJS = \
+ $(WIN32RES) \
+ _ltree_gist.o \
+ _ltree_op.o \
+ crc32.o \
+ lquery_op.o \
+ ltree_gist.o \
+ ltree_io.o \
+ ltree_op.o \
+ ltxtquery_io.o \
+ ltxtquery_op.o
+
+EXTENSION = ltree
+DATA = ltree--1.1--1.2.sql ltree--1.1.sql ltree--1.0--1.1.sql
+PGFILEDESC = "ltree - hierarchical label data type"
+
+HEADERS = ltree.h
+
+REGRESS = ltree
+
+ifdef USE_PGXS
+PG_CONFIG = pg_config
+PGXS := $(shell $(PG_CONFIG) --pgxs)
+include $(PGXS)
+else
+subdir = contrib/ltree
+top_builddir = ../..
+include $(top_builddir)/src/Makefile.global
+include $(top_srcdir)/contrib/contrib-global.mk
+endif
diff --git a/contrib/ltree/_ltree_gist.c b/contrib/ltree/_ltree_gist.c
new file mode 100644
index 0000000..e89a39a
--- /dev/null
+++ b/contrib/ltree/_ltree_gist.c
@@ -0,0 +1,558 @@
+/*
+ * contrib/ltree/_ltree_gist.c
+ *
+ *
+ * GiST support for ltree[]
+ * Teodor Sigaev <teodor@stack.net>
+ */
+#include "postgres.h"
+
+#include <math.h>
+
+#include "access/gist.h"
+#include "access/reloptions.h"
+#include "access/stratnum.h"
+#include "crc32.h"
+#include "ltree.h"
+#include "port/pg_bitutils.h"
+#include "utils/array.h"
+
+PG_FUNCTION_INFO_V1(_ltree_compress);
+PG_FUNCTION_INFO_V1(_ltree_same);
+PG_FUNCTION_INFO_V1(_ltree_union);
+PG_FUNCTION_INFO_V1(_ltree_penalty);
+PG_FUNCTION_INFO_V1(_ltree_picksplit);
+PG_FUNCTION_INFO_V1(_ltree_consistent);
+PG_FUNCTION_INFO_V1(_ltree_gist_options);
+
+#define GETENTRY(vec,pos) ((ltree_gist *) DatumGetPointer((vec)->vector[(pos)].key))
+#define NEXTVAL(x) ( (ltree*)( (char*)(x) + INTALIGN( VARSIZE(x) ) ) )
+
+#define WISH_F(a,b,c) (double)( -(double)(((a)-(b))*((a)-(b))*((a)-(b)))*(c) )
+
+
+static void
+hashing(BITVECP sign, ltree *t, int siglen)
+{
+ int tlen = t->numlevel;
+ ltree_level *cur = LTREE_FIRST(t);
+ int hash;
+
+ while (tlen > 0)
+ {
+ hash = ltree_crc32_sz(cur->name, cur->len);
+ AHASH(sign, hash, siglen);
+ cur = LEVEL_NEXT(cur);
+ tlen--;
+ }
+}
+
+Datum
+_ltree_compress(PG_FUNCTION_ARGS)
+{
+ GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+ GISTENTRY *retval = entry;
+ int siglen = LTREE_GET_ASIGLEN();
+
+ if (entry->leafkey)
+ { /* ltree */
+ ltree_gist *key;
+ ArrayType *val = DatumGetArrayTypeP(entry->key);
+ int num = ArrayGetNItems(ARR_NDIM(val), ARR_DIMS(val));
+ ltree *item = (ltree *) ARR_DATA_PTR(val);
+
+ if (ARR_NDIM(val) > 1)
+ ereport(ERROR,
+ (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
+ errmsg("array must be one-dimensional")));
+ if (array_contains_nulls(val))
+ ereport(ERROR,
+ (errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
+ errmsg("array must not contain nulls")));
+
+ key = ltree_gist_alloc(false, NULL, siglen, NULL, NULL);
+
+ while (num > 0)
+ {
+ hashing(LTG_SIGN(key), item, siglen);
+ num--;
+ item = NEXTVAL(item);
+ }
+
+ retval = (GISTENTRY *) palloc(sizeof(GISTENTRY));
+ gistentryinit(*retval, PointerGetDatum(key),
+ entry->rel, entry->page,
+ entry->offset, false);
+ }
+ else if (!LTG_ISALLTRUE(entry->key))
+ {
+ int32 i;
+ ltree_gist *key;
+ BITVECP sign = LTG_SIGN(DatumGetPointer(entry->key));
+
+ ALOOPBYTE(siglen)
+ {
+ if ((sign[i] & 0xff) != 0xff)
+ PG_RETURN_POINTER(retval);
+ }
+
+ key = ltree_gist_alloc(true, sign, siglen, NULL, NULL);
+ retval = (GISTENTRY *) palloc(sizeof(GISTENTRY));
+ gistentryinit(*retval, PointerGetDatum(key),
+ entry->rel, entry->page,
+ entry->offset, false);
+ }
+ PG_RETURN_POINTER(retval);
+}
+
+Datum
+_ltree_same(PG_FUNCTION_ARGS)
+{
+ ltree_gist *a = (ltree_gist *) PG_GETARG_POINTER(0);
+ ltree_gist *b = (ltree_gist *) PG_GETARG_POINTER(1);
+ bool *result = (bool *) PG_GETARG_POINTER(2);
+ int siglen = LTREE_GET_ASIGLEN();
+
+ if (LTG_ISALLTRUE(a) && LTG_ISALLTRUE(b))
+ *result = true;
+ else if (LTG_ISALLTRUE(a))
+ *result = false;
+ else if (LTG_ISALLTRUE(b))
+ *result = false;
+ else
+ {
+ int32 i;
+ BITVECP sa = LTG_SIGN(a),
+ sb = LTG_SIGN(b);
+
+ *result = true;
+ ALOOPBYTE(siglen)
+ {
+ if (sa[i] != sb[i])
+ {
+ *result = false;
+ break;
+ }
+ }
+ }
+ PG_RETURN_POINTER(result);
+}
+
+static int32
+unionkey(BITVECP sbase, ltree_gist *add, int siglen)
+{
+ int32 i;
+ BITVECP sadd = LTG_SIGN(add);
+
+ if (LTG_ISALLTRUE(add))
+ return 1;
+
+ ALOOPBYTE(siglen)
+ sbase[i] |= sadd[i];
+ return 0;
+}
+
+Datum
+_ltree_union(PG_FUNCTION_ARGS)
+{
+ GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
+ int *size = (int *) PG_GETARG_POINTER(1);
+ int siglen = LTREE_GET_ASIGLEN();
+ int32 i;
+ ltree_gist *result = ltree_gist_alloc(false, NULL, siglen, NULL, NULL);
+ BITVECP base = LTG_SIGN(result);
+
+ for (i = 0; i < entryvec->n; i++)
+ {
+ if (unionkey(base, GETENTRY(entryvec, i), siglen))
+ {
+ result->flag |= LTG_ALLTRUE;
+ SET_VARSIZE(result, LTG_HDRSIZE);
+ break;
+ }
+ }
+
+ *size = VARSIZE(result);
+
+ PG_RETURN_POINTER(result);
+}
+
+static int32
+sizebitvec(BITVECP sign, int siglen)
+{
+ return pg_popcount((const char *) sign, siglen);
+}
+
+static int
+hemdistsign(BITVECP a, BITVECP b, int siglen)
+{
+ int i,
+ diff,
+ dist = 0;
+
+ ALOOPBYTE(siglen)
+ {
+ diff = (unsigned char) (a[i] ^ b[i]);
+ /* Using the popcount functions here isn't likely to win */
+ dist += pg_number_of_ones[diff];
+ }
+ return dist;
+}
+
+static int
+hemdist(ltree_gist *a, ltree_gist *b, int siglen)
+{
+ if (LTG_ISALLTRUE(a))
+ {
+ if (LTG_ISALLTRUE(b))
+ return 0;
+ else
+ return ASIGLENBIT(siglen) - sizebitvec(LTG_SIGN(b), siglen);
+ }
+ else if (LTG_ISALLTRUE(b))
+ return ASIGLENBIT(siglen) - sizebitvec(LTG_SIGN(a), siglen);
+
+ return hemdistsign(LTG_SIGN(a), LTG_SIGN(b), siglen);
+}
+
+
+Datum
+_ltree_penalty(PG_FUNCTION_ARGS)
+{
+ ltree_gist *origval = (ltree_gist *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
+ ltree_gist *newval = (ltree_gist *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
+ float *penalty = (float *) PG_GETARG_POINTER(2);
+ int siglen = LTREE_GET_ASIGLEN();
+
+ *penalty = hemdist(origval, newval, siglen);
+ PG_RETURN_POINTER(penalty);
+}
+
+typedef struct
+{
+ OffsetNumber pos;
+ int32 cost;
+} SPLITCOST;
+
+static int
+comparecost(const void *a, const void *b)
+{
+ return ((const SPLITCOST *) a)->cost - ((const SPLITCOST *) b)->cost;
+}
+
+Datum
+_ltree_picksplit(PG_FUNCTION_ARGS)
+{
+ GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
+ GIST_SPLITVEC *v = (GIST_SPLITVEC *) PG_GETARG_POINTER(1);
+ int siglen = LTREE_GET_ASIGLEN();
+ OffsetNumber k,
+ j;
+ ltree_gist *datum_l,
+ *datum_r;
+ BITVECP union_l,
+ union_r;
+ int32 size_alpha,
+ size_beta;
+ int32 size_waste,
+ waste = -1;
+ int32 nbytes;
+ OffsetNumber seed_1 = 0,
+ seed_2 = 0;
+ OffsetNumber *left,
+ *right;
+ OffsetNumber maxoff;
+ BITVECP ptr;
+ int i;
+ SPLITCOST *costvector;
+ ltree_gist *_k,
+ *_j;
+
+ maxoff = entryvec->n - 2;
+ nbytes = (maxoff + 2) * sizeof(OffsetNumber);
+ v->spl_left = (OffsetNumber *) palloc(nbytes);
+ v->spl_right = (OffsetNumber *) palloc(nbytes);
+
+ for (k = FirstOffsetNumber; k < maxoff; k = OffsetNumberNext(k))
+ {
+ _k = GETENTRY(entryvec, k);
+ for (j = OffsetNumberNext(k); j <= maxoff; j = OffsetNumberNext(j))
+ {
+ size_waste = hemdist(_k, GETENTRY(entryvec, j), siglen);
+ if (size_waste > waste)
+ {
+ waste = size_waste;
+ seed_1 = k;
+ seed_2 = j;
+ }
+ }
+ }
+
+ left = v->spl_left;
+ v->spl_nleft = 0;
+ right = v->spl_right;
+ v->spl_nright = 0;
+
+ if (seed_1 == 0 || seed_2 == 0)
+ {
+ seed_1 = 1;
+ seed_2 = 2;
+ }
+
+ /* form initial .. */
+ datum_l = ltree_gist_alloc(LTG_ISALLTRUE(GETENTRY(entryvec, seed_1)),
+ LTG_SIGN(GETENTRY(entryvec, seed_1)),
+ siglen, NULL, NULL);
+
+ datum_r = ltree_gist_alloc(LTG_ISALLTRUE(GETENTRY(entryvec, seed_2)),
+ LTG_SIGN(GETENTRY(entryvec, seed_2)),
+ siglen, NULL, NULL);
+
+ maxoff = OffsetNumberNext(maxoff);
+ /* sort before ... */
+ costvector = (SPLITCOST *) palloc(sizeof(SPLITCOST) * maxoff);
+ for (j = FirstOffsetNumber; j <= maxoff; j = OffsetNumberNext(j))
+ {
+ costvector[j - 1].pos = j;
+ _j = GETENTRY(entryvec, j);
+ size_alpha = hemdist(datum_l, _j, siglen);
+ size_beta = hemdist(datum_r, _j, siglen);
+ costvector[j - 1].cost = abs(size_alpha - size_beta);
+ }
+ qsort(costvector, maxoff, sizeof(SPLITCOST), comparecost);
+
+ union_l = LTG_SIGN(datum_l);
+ union_r = LTG_SIGN(datum_r);
+
+ for (k = 0; k < maxoff; k++)
+ {
+ j = costvector[k].pos;
+ if (j == seed_1)
+ {
+ *left++ = j;
+ v->spl_nleft++;
+ continue;
+ }
+ else if (j == seed_2)
+ {
+ *right++ = j;
+ v->spl_nright++;
+ continue;
+ }
+ _j = GETENTRY(entryvec, j);
+ size_alpha = hemdist(datum_l, _j, siglen);
+ size_beta = hemdist(datum_r, _j, siglen);
+
+ if (size_alpha < size_beta + WISH_F(v->spl_nleft, v->spl_nright, 0.00001))
+ {
+ if (LTG_ISALLTRUE(datum_l) || LTG_ISALLTRUE(_j))
+ {
+ if (!LTG_ISALLTRUE(datum_l))
+ memset(union_l, 0xff, siglen);
+ }
+ else
+ {
+ ptr = LTG_SIGN(_j);
+ ALOOPBYTE(siglen)
+ union_l[i] |= ptr[i];
+ }
+ *left++ = j;
+ v->spl_nleft++;
+ }
+ else
+ {
+ if (LTG_ISALLTRUE(datum_r) || LTG_ISALLTRUE(_j))
+ {
+ if (!LTG_ISALLTRUE(datum_r))
+ memset(union_r, 0xff, siglen);
+ }
+ else
+ {
+ ptr = LTG_SIGN(_j);
+ ALOOPBYTE(siglen)
+ union_r[i] |= ptr[i];
+ }
+ *right++ = j;
+ v->spl_nright++;
+ }
+ }
+
+ *right = *left = FirstOffsetNumber;
+
+ v->spl_ldatum = PointerGetDatum(datum_l);
+ v->spl_rdatum = PointerGetDatum(datum_r);
+
+ PG_RETURN_POINTER(v);
+}
+
+static bool
+gist_te(ltree_gist *key, ltree *query, int siglen)
+{
+ ltree_level *curq = LTREE_FIRST(query);
+ BITVECP sign = LTG_SIGN(key);
+ int qlen = query->numlevel;
+ unsigned int hv;
+
+ if (LTG_ISALLTRUE(key))
+ return true;
+
+ while (qlen > 0)
+ {
+ hv = ltree_crc32_sz(curq->name, curq->len);
+ if (!GETBIT(sign, AHASHVAL(hv, siglen)))
+ return false;
+ curq = LEVEL_NEXT(curq);
+ qlen--;
+ }
+
+ return true;
+}
+
+typedef struct LtreeSignature
+{
+ BITVECP sign;
+ int siglen;
+} LtreeSignature;
+
+static bool
+checkcondition_bit(void *cxt, ITEM *val)
+{
+ LtreeSignature *sig = cxt;
+
+ return (FLG_CANLOOKSIGN(val->flag)) ? GETBIT(sig->sign, AHASHVAL(val->val, sig->siglen)) : true;
+}
+
+static bool
+gist_qtxt(ltree_gist *key, ltxtquery *query, int siglen)
+{
+ LtreeSignature sig;
+
+ if (LTG_ISALLTRUE(key))
+ return true;
+
+ sig.sign = LTG_SIGN(key);
+ sig.siglen = siglen;
+
+ return ltree_execute(GETQUERY(query),
+ &sig, false,
+ checkcondition_bit);
+}
+
+static bool
+gist_qe(ltree_gist *key, lquery *query, int siglen)
+{
+ lquery_level *curq = LQUERY_FIRST(query);
+ BITVECP sign = LTG_SIGN(key);
+ int qlen = query->numlevel;
+
+ if (LTG_ISALLTRUE(key))
+ return true;
+
+ while (qlen > 0)
+ {
+ if (curq->numvar && LQL_CANLOOKSIGN(curq))
+ {
+ bool isexist = false;
+ int vlen = curq->numvar;
+ lquery_variant *curv = LQL_FIRST(curq);
+
+ while (vlen > 0)
+ {
+ if (GETBIT(sign, AHASHVAL(curv->val, siglen)))
+ {
+ isexist = true;
+ break;
+ }
+ curv = LVAR_NEXT(curv);
+ vlen--;
+ }
+ if (!isexist)
+ return false;
+ }
+
+ curq = LQL_NEXT(curq);
+ qlen--;
+ }
+
+ return true;
+}
+
+static bool
+_arrq_cons(ltree_gist *key, ArrayType *_query, int siglen)
+{
+ lquery *query = (lquery *) ARR_DATA_PTR(_query);
+ int num = ArrayGetNItems(ARR_NDIM(_query), ARR_DIMS(_query));
+
+ if (ARR_NDIM(_query) > 1)
+ ereport(ERROR,
+ (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
+ errmsg("array must be one-dimensional")));
+ if (array_contains_nulls(_query))
+ ereport(ERROR,
+ (errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
+ errmsg("array must not contain nulls")));
+
+ while (num > 0)
+ {
+ if (gist_qe(key, query, siglen))
+ return true;
+ num--;
+ query = (lquery *) NEXTVAL(query);
+ }
+ return false;
+}
+
+Datum
+_ltree_consistent(PG_FUNCTION_ARGS)
+{
+ GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+ void *query = (void *) PG_DETOAST_DATUM(PG_GETARG_DATUM(1));
+ StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
+
+ /* Oid subtype = PG_GETARG_OID(3); */
+ bool *recheck = (bool *) PG_GETARG_POINTER(4);
+ int siglen = LTREE_GET_ASIGLEN();
+ ltree_gist *key = (ltree_gist *) DatumGetPointer(entry->key);
+ bool res = false;
+
+ /* All cases served by this function are inexact */
+ *recheck = true;
+
+ switch (strategy)
+ {
+ case 10:
+ case 11:
+ res = gist_te(key, (ltree *) query, siglen);
+ break;
+ case 12:
+ case 13:
+ res = gist_qe(key, (lquery *) query, siglen);
+ break;
+ case 14:
+ case 15:
+ res = gist_qtxt(key, (ltxtquery *) query, siglen);
+ break;
+ case 16:
+ case 17:
+ res = _arrq_cons(key, (ArrayType *) query, siglen);
+ break;
+ default:
+ /* internal error */
+ elog(ERROR, "unrecognized StrategyNumber: %d", strategy);
+ }
+ PG_FREE_IF_COPY(query, 1);
+ PG_RETURN_BOOL(res);
+}
+
+Datum
+_ltree_gist_options(PG_FUNCTION_ARGS)
+{
+ local_relopts *relopts = (local_relopts *) PG_GETARG_POINTER(0);
+
+ init_local_reloptions(relopts, sizeof(LtreeGistOptions));
+ add_local_int_reloption(relopts, "siglen", "signature length",
+ LTREE_ASIGLEN_DEFAULT, 1, LTREE_ASIGLEN_MAX,
+ offsetof(LtreeGistOptions, siglen));
+
+ PG_RETURN_VOID();
+}
diff --git a/contrib/ltree/_ltree_op.c b/contrib/ltree/_ltree_op.c
new file mode 100644
index 0000000..2fdb5ea
--- /dev/null
+++ b/contrib/ltree/_ltree_op.c
@@ -0,0 +1,326 @@
+/*
+ * contrib/ltree/_ltree_op.c
+ *
+ *
+ * op function for ltree[]
+ * Teodor Sigaev <teodor@stack.net>
+ */
+#include "postgres.h"
+
+#include <ctype.h>
+
+#include "ltree.h"
+#include "utils/array.h"
+
+PG_FUNCTION_INFO_V1(_ltree_isparent);
+PG_FUNCTION_INFO_V1(_ltree_r_isparent);
+PG_FUNCTION_INFO_V1(_ltree_risparent);
+PG_FUNCTION_INFO_V1(_ltree_r_risparent);
+PG_FUNCTION_INFO_V1(_ltq_regex);
+PG_FUNCTION_INFO_V1(_ltq_rregex);
+PG_FUNCTION_INFO_V1(_lt_q_regex);
+PG_FUNCTION_INFO_V1(_lt_q_rregex);
+PG_FUNCTION_INFO_V1(_ltxtq_exec);
+PG_FUNCTION_INFO_V1(_ltxtq_rexec);
+
+PG_FUNCTION_INFO_V1(_ltree_extract_isparent);
+PG_FUNCTION_INFO_V1(_ltree_extract_risparent);
+PG_FUNCTION_INFO_V1(_ltq_extract_regex);
+PG_FUNCTION_INFO_V1(_ltxtq_extract_exec);
+
+PG_FUNCTION_INFO_V1(_lca);
+
+typedef Datum (*PGCALL2) (PG_FUNCTION_ARGS);
+
+#define NEXTVAL(x) ( (ltree*)( (char*)(x) + INTALIGN( VARSIZE(x) ) ) )
+
+static bool
+array_iterator(ArrayType *la, PGCALL2 callback, void *param, ltree **found)
+{
+ int num = ArrayGetNItems(ARR_NDIM(la), ARR_DIMS(la));
+ ltree *item = (ltree *) ARR_DATA_PTR(la);
+
+ if (ARR_NDIM(la) > 1)
+ ereport(ERROR,
+ (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
+ errmsg("array must be one-dimensional")));
+ if (array_contains_nulls(la))
+ ereport(ERROR,
+ (errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
+ errmsg("array must not contain nulls")));
+
+ if (found)
+ *found = NULL;
+ while (num > 0)
+ {
+ if (DatumGetBool(DirectFunctionCall2(callback,
+ PointerGetDatum(item), PointerGetDatum(param))))
+ {
+
+ if (found)
+ *found = item;
+ return true;
+ }
+ num--;
+ item = NEXTVAL(item);
+ }
+
+ return false;
+}
+
+Datum
+_ltree_isparent(PG_FUNCTION_ARGS)
+{
+ ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
+ ltree *query = PG_GETARG_LTREE_P(1);
+ bool res = array_iterator(la, ltree_isparent, (void *) query, NULL);
+
+ PG_FREE_IF_COPY(la, 0);
+ PG_FREE_IF_COPY(query, 1);
+ PG_RETURN_BOOL(res);
+}
+
+Datum
+_ltree_r_isparent(PG_FUNCTION_ARGS)
+{
+ PG_RETURN_DATUM(DirectFunctionCall2(_ltree_isparent,
+ PG_GETARG_DATUM(1),
+ PG_GETARG_DATUM(0)
+ ));
+}
+
+Datum
+_ltree_risparent(PG_FUNCTION_ARGS)
+{
+ ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
+ ltree *query = PG_GETARG_LTREE_P(1);
+ bool res = array_iterator(la, ltree_risparent, (void *) query, NULL);
+
+ PG_FREE_IF_COPY(la, 0);
+ PG_FREE_IF_COPY(query, 1);
+ PG_RETURN_BOOL(res);
+}
+
+Datum
+_ltree_r_risparent(PG_FUNCTION_ARGS)
+{
+ PG_RETURN_DATUM(DirectFunctionCall2(_ltree_risparent,
+ PG_GETARG_DATUM(1),
+ PG_GETARG_DATUM(0)
+ ));
+}
+
+Datum
+_ltq_regex(PG_FUNCTION_ARGS)
+{
+ ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
+ lquery *query = PG_GETARG_LQUERY_P(1);
+ bool res = array_iterator(la, ltq_regex, (void *) query, NULL);
+
+ PG_FREE_IF_COPY(la, 0);
+ PG_FREE_IF_COPY(query, 1);
+ PG_RETURN_BOOL(res);
+}
+
+Datum
+_ltq_rregex(PG_FUNCTION_ARGS)
+{
+ PG_RETURN_DATUM(DirectFunctionCall2(_ltq_regex,
+ PG_GETARG_DATUM(1),
+ PG_GETARG_DATUM(0)
+ ));
+}
+
+Datum
+_lt_q_regex(PG_FUNCTION_ARGS)
+{
+ ArrayType *_tree = PG_GETARG_ARRAYTYPE_P(0);
+ ArrayType *_query = PG_GETARG_ARRAYTYPE_P(1);
+ lquery *query = (lquery *) ARR_DATA_PTR(_query);
+ bool res = false;
+ int num = ArrayGetNItems(ARR_NDIM(_query), ARR_DIMS(_query));
+
+ if (ARR_NDIM(_query) > 1)
+ ereport(ERROR,
+ (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
+ errmsg("array must be one-dimensional")));
+ if (array_contains_nulls(_query))
+ ereport(ERROR,
+ (errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
+ errmsg("array must not contain nulls")));
+
+ while (num > 0)
+ {
+ if (array_iterator(_tree, ltq_regex, (void *) query, NULL))
+ {
+ res = true;
+ break;
+ }
+ num--;
+ query = (lquery *) NEXTVAL(query);
+ }
+
+ PG_FREE_IF_COPY(_tree, 0);
+ PG_FREE_IF_COPY(_query, 1);
+ PG_RETURN_BOOL(res);
+}
+
+Datum
+_lt_q_rregex(PG_FUNCTION_ARGS)
+{
+ PG_RETURN_DATUM(DirectFunctionCall2(_lt_q_regex,
+ PG_GETARG_DATUM(1),
+ PG_GETARG_DATUM(0)
+ ));
+}
+
+
+Datum
+_ltxtq_exec(PG_FUNCTION_ARGS)
+{
+ ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
+ ltxtquery *query = PG_GETARG_LTXTQUERY_P(1);
+ bool res = array_iterator(la, ltxtq_exec, (void *) query, NULL);
+
+ PG_FREE_IF_COPY(la, 0);
+ PG_FREE_IF_COPY(query, 1);
+ PG_RETURN_BOOL(res);
+}
+
+Datum
+_ltxtq_rexec(PG_FUNCTION_ARGS)
+{
+ PG_RETURN_DATUM(DirectFunctionCall2(_ltxtq_exec,
+ PG_GETARG_DATUM(1),
+ PG_GETARG_DATUM(0)
+ ));
+}
+
+
+Datum
+_ltree_extract_isparent(PG_FUNCTION_ARGS)
+{
+ ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
+ ltree *query = PG_GETARG_LTREE_P(1);
+ ltree *found,
+ *item;
+
+ if (!array_iterator(la, ltree_isparent, (void *) query, &found))
+ {
+ PG_FREE_IF_COPY(la, 0);
+ PG_FREE_IF_COPY(query, 1);
+ PG_RETURN_NULL();
+ }
+
+ item = (ltree *) palloc0(VARSIZE(found));
+ memcpy(item, found, VARSIZE(found));
+
+ PG_FREE_IF_COPY(la, 0);
+ PG_FREE_IF_COPY(query, 1);
+ PG_RETURN_POINTER(item);
+}
+
+Datum
+_ltree_extract_risparent(PG_FUNCTION_ARGS)
+{
+ ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
+ ltree *query = PG_GETARG_LTREE_P(1);
+ ltree *found,
+ *item;
+
+ if (!array_iterator(la, ltree_risparent, (void *) query, &found))
+ {
+ PG_FREE_IF_COPY(la, 0);
+ PG_FREE_IF_COPY(query, 1);
+ PG_RETURN_NULL();
+ }
+
+ item = (ltree *) palloc0(VARSIZE(found));
+ memcpy(item, found, VARSIZE(found));
+
+ PG_FREE_IF_COPY(la, 0);
+ PG_FREE_IF_COPY(query, 1);
+ PG_RETURN_POINTER(item);
+}
+
+Datum
+_ltq_extract_regex(PG_FUNCTION_ARGS)
+{
+ ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
+ lquery *query = PG_GETARG_LQUERY_P(1);
+ ltree *found,
+ *item;
+
+ if (!array_iterator(la, ltq_regex, (void *) query, &found))
+ {
+ PG_FREE_IF_COPY(la, 0);
+ PG_FREE_IF_COPY(query, 1);
+ PG_RETURN_NULL();
+ }
+
+ item = (ltree *) palloc0(VARSIZE(found));
+ memcpy(item, found, VARSIZE(found));
+
+ PG_FREE_IF_COPY(la, 0);
+ PG_FREE_IF_COPY(query, 1);
+ PG_RETURN_POINTER(item);
+}
+
+Datum
+_ltxtq_extract_exec(PG_FUNCTION_ARGS)
+{
+ ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
+ ltxtquery *query = PG_GETARG_LTXTQUERY_P(1);
+ ltree *found,
+ *item;
+
+ if (!array_iterator(la, ltxtq_exec, (void *) query, &found))
+ {
+ PG_FREE_IF_COPY(la, 0);
+ PG_FREE_IF_COPY(query, 1);
+ PG_RETURN_NULL();
+ }
+
+ item = (ltree *) palloc0(VARSIZE(found));
+ memcpy(item, found, VARSIZE(found));
+
+ PG_FREE_IF_COPY(la, 0);
+ PG_FREE_IF_COPY(query, 1);
+ PG_RETURN_POINTER(item);
+}
+
+Datum
+_lca(PG_FUNCTION_ARGS)
+{
+ ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
+ int num = ArrayGetNItems(ARR_NDIM(la), ARR_DIMS(la));
+ ltree *item = (ltree *) ARR_DATA_PTR(la);
+ ltree **a,
+ *res;
+
+ if (ARR_NDIM(la) > 1)
+ ereport(ERROR,
+ (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
+ errmsg("array must be one-dimensional")));
+ if (array_contains_nulls(la))
+ ereport(ERROR,
+ (errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
+ errmsg("array must not contain nulls")));
+
+ a = (ltree **) palloc(sizeof(ltree *) * num);
+ while (num > 0)
+ {
+ num--;
+ a[num] = item;
+ item = NEXTVAL(item);
+ }
+ res = lca_inner(a, ArrayGetNItems(ARR_NDIM(la), ARR_DIMS(la)));
+ pfree(a);
+
+ PG_FREE_IF_COPY(la, 0);
+
+ if (res)
+ PG_RETURN_POINTER(res);
+ else
+ PG_RETURN_NULL();
+}
diff --git a/contrib/ltree/crc32.c b/contrib/ltree/crc32.c
new file mode 100644
index 0000000..134f46a
--- /dev/null
+++ b/contrib/ltree/crc32.c
@@ -0,0 +1,40 @@
+/* contrib/ltree/crc32.c */
+
+/*
+ * Implements CRC-32, as used in ltree.
+ *
+ * Note that the CRC is used in the on-disk format of GiST indexes, so we
+ * must stay backwards-compatible!
+ */
+
+#include "postgres.h"
+#include "ltree.h"
+
+#ifdef LOWER_NODE
+#include <ctype.h>
+#define TOLOWER(x) tolower((unsigned char) (x))
+#else
+#define TOLOWER(x) (x)
+#endif
+
+#include "crc32.h"
+#include "utils/pg_crc.h"
+
+unsigned int
+ltree_crc32_sz(const char *buf, int size)
+{
+ pg_crc32 crc;
+ const char *p = buf;
+
+ INIT_TRADITIONAL_CRC32(crc);
+ while (size > 0)
+ {
+ char c = (char) TOLOWER(*p);
+
+ COMP_TRADITIONAL_CRC32(crc, &c, 1);
+ size--;
+ p++;
+ }
+ FIN_TRADITIONAL_CRC32(crc);
+ return (unsigned int) crc;
+}
diff --git a/contrib/ltree/crc32.h b/contrib/ltree/crc32.h
new file mode 100644
index 0000000..9588122
--- /dev/null
+++ b/contrib/ltree/crc32.h
@@ -0,0 +1,12 @@
+#ifndef _CRC32_H
+#define _CRC32_H
+
+/* contrib/ltree/crc32.h */
+
+/* Returns crc32 of data block */
+extern unsigned int ltree_crc32_sz(const char *buf, int size);
+
+/* Returns crc32 of null-terminated string */
+#define crc32(buf) ltree_crc32_sz((buf),strlen(buf))
+
+#endif
diff --git a/contrib/ltree/data/_ltree.data b/contrib/ltree/data/_ltree.data
new file mode 100644
index 0000000..9ba2787
--- /dev/null
+++ b/contrib/ltree/data/_ltree.data
@@ -0,0 +1,1000 @@
+{14.30.13.5.26.9.22.23.14.10, 22.8.20.1.10.28.6.27, 16.30.10.7.29.4.9.21.22.13.26}
+{5.8.17.30.15.8.19.29.30.11.6, 3.13, 15.8.10, 23.17.28.31.28}
+{22.23.22.30, 4.31, 7.13, 32.6.31.31}
+{19.10.26.19.5.21.30.23, 24.1.10.20.28.18.6.27.20.30.26, 5.4.8.25.12.27.2.29.28.3, 1.1.1.2}
+{11.14.21.24.10.7.29.23.24.28, 31.13.9.1.5.12, 23.12.32.22.19.1.22.4}
+{8.32.30.1, 13.8.20.9.21, 8.29.6.3, 30.8.9.14.25.30, 24.2.26.24.14.15.31.23.17.26}
+{28.5.12.9.2.27.11.11.2, 24.9.27.16.20.21, 31.30.12.20}
+{29.9.25.27.15.16.32.26.6.32, 5.24.25.15.27.30.20}
+{12.21.20.20, 4.14.10.19.16, 2.15.14.20.30.26, 19.26.24.27.6.24.16.27.32.29, 29.10.12.17.12.16}
+{22.23.22.30, 25.19.27.2.9.20}
+{5.3.29.9.22, 28.14.32.29.2.3.4, 21.14.25.20.13.31.14.20, 22.25.4.28.9.20.12.13}
+{19.16.31.31.29.12, 1.30.18.31.12.25.4.19.28.12.15, 25.24.29}
+{27.27.25.10.31.10.21.22.21.16.12, 7.30.5.10.10.5.30.14.9.18, 3.6.24.21.20.32.3.4.26.5}
+{24.9.27.16.20.21, 12.11.20.20.29, 12.29.17.2.20.29.1.11.19.8.12}
+{25.2.11.20.8.6.22, 22.24.22.25.15.23.13}
+{16.14.3.17.17.26.12.19.19.30, 28.20.8.9.9.28.30.29, 14.9.15.21.21.31.1.29}
+{6.26.29.10.21.28.20.19, 23.24.11.31.10.31.18.28.13.18.6, 13.17.7, 29.23.1.21.31.8, 7.27.20}
+{22.17.4.2.22.17, 19.9.32.23.13.24.1}
+{26.31.7, 16.21.13.1.4}
+{22.23.25.28.5.27.9.9.24.31.10, 18.9.26.7, 23.14.12.30.18.4.16.18.7.7, 27.29.1.5.30.6.22.16.23.2.28, 10.29}
+{30.27.8.6.11.19, 3.15.2.23.22.2.16.14}
+{25.17.18.30, 18.29.5.1.10.21.2, 8.21.17.3.6.3.18, 26.31.7, 26.11}
+{5.27.32.21.5.1.11.14, 27.3.3.11.21.4.25, 4.2.16.13.16.11.19.10.10.25, 32.3.23.7.2}
+{3.21.6.13.12.18.25, 1.27.22.23.2.26.32.17.7.9, 9.23.21.22.5.29.15.21, 15.5.1.31.28.10.8, 27.5.15.1.15.16.21}
+{30.25.17.17.10.29, 31.29.18.26.1.26.17, 2.2.18.18.3.3.18.8.10.8, 8.31.22.27, 18.9.21.2.31.8.32}
+{14.6.10.29.25.26.20.24.24, 24.25.7.27.30.8.26.17, 3.4.22.19, 31.29.4.29.24.30.30.32.10.23, 14.5.13.19.25.12.32.9.13.16.12}
+{8.10, 20.6.3.26.7.29.28.4, 31.29.4.29.24.30.30.32.10.23, 30.18.30.16.29}
+{14.21.6.5.26.9.32.16.25, 29.20.1.11.21.16.1.2.14.28}
+{12.7.16.8.21.22.2.16.18, 6.7.25.16.13.21.7.20.25.12.4, 18.29.13.24.18.3.12.18.12.12, 26.7.5.8.11.9.22.1.6, 32.30.18.17.1.14.12.18}
+{21.15.18.18.30.3.20, 22.10.16.8, 26.18.32.20}
+{5.27.28.26.14.15.6.20.1.31.13, 30.23.10.1.10.7.22.28.18.11.17, 5.27.28.26.14.15.6.20.1.31.13}
+{9.6.9.21.6.11.29.13.29.20.32, 27.21.28.24.7.2.24.23.8, 26.25.10.10.13, 14.17.7.30.8.25.26.4}
+{10.3.19, 10.16.19.7.15, 1.1, 14.21.6.5.26.9.32.16.25, 24.3.23.25}
+{15.10.30.1.4.12.8.20, 22.25.4.28.9.20.12.13}
+{15.9.8.20.27, 8.13.9.31.20.20.24.7.23.31.28, 15.1.8, 28.25.29.4.13.5.6}
+{24.24, 20.3.1.8.8.30.20, 6.19.6.4.9.11.32.17.17.3.15, 9.31.4.14.31.10.17.5.2}
+{21.9.32.1.27, 29.14.31.25.7.32.23, 25.16.9.6}
+{1, 16.13.2.19.14.29.31.30.23.15.12, 26.19.3.14.8.28.31.10, 31.5.6.4.8.29.3, 1.11.10.19.6.1.26.17.2.22}
+{29.3.15.17.12.29, 19.9.32.23.13.24.1, 2.32.8.28.24.20.9.24.25.8.9, 30.12.9.25.24.6.7.24.29}
+{9.22.10.15.5.15, 29.30.7.31.22}
+{16.8.29.7.21.2.3, 23.10.5.26.12.4.20.4, 1.12.25.26.22.8.15.23, 4.9, 14.1.15.25.27.23.25.26.28.10}
+{11.17.10, 10.22.30.16.2.21.17.13, 29.27.7.7.3.11.14.26.21.11}
+{11.14.21.24.10.7.29.23.24.28, 27.22.11.13.21.25.5.1.27.21.27}
+{5.2.32.19.13.29.12.13.31.29, 8.6.6.5.8.8.12, 23.20.8, 5.27.21.1.29.29.28}
+{13.30.24, 17.11.17.4.8.26.26.20.6, 12.1.28.22.25}
+{5.14.27.15.11.17.3.10.27.25, 20.23.29.5.7.30.13.14.22, 24.13.1.8, 27.26.29, 27.18.10.4.22}
+{19.16.26.2, 25.3, 10.5.5.15.29.2}
+{32.6.3.2.12.5.28.1.25, 5.18.9.25.31.21.22}
+{13.8.20.9.21, 24.9.15.1.14.29.6.4}
+{1.15.17.6.28.25.24.31.27.9, 2.1.12.19.29.28.3.31.28.28.10, 25.16.9.6, 32.4.19}
+{30.12.6.30, 30.31.13.9, 23.12.19.25.16.23.22.6.29.4, 21.18.30.19.24.24}
+{26.26.22.21.14.11.29.19.14.24, 7.31.4.20.17, 14.30.13.5.26.9.22.23.14.10, 8.1.29.18.22}
+{12.23.3.19.29.15.12.6, 2.4.25.32.16.22.26.13.17.18, 32.6.13.8.32, 31.18.32.11.7.25.20.5, 10.31}
+{7.23.15.32.28.27.2.2.26, 8.32.30.1, 31.28.32.4.31.4.7, 2.31.25, 11.2.27.3}
+{11.12.6.21, 22.28.20.6.32.32}
+{21.14.22.29, 20.30.28.15.17, 4.22.17.10.19.9.8.19.28.3.9}
+{31.18.25.1.14.29.25.5.22.30, 24.32.27, 8.21.8.23.4.18}
+{28.15.25.7.13.6.19.2, 32.8.5, 25.17.18.17.27}
+{6.25.17.32, 22.17.7.30.13.24, 3.9.25.26.7, 14.23.31.5.5.15.17.12.17.7.3, 18.15.14}
+{13.12, 16.5.14.21.32.17.23.3.4.26}
+{1.19.22.11.14.7.32.23.19.14, 12.1.1, 19.26.24.27.6.24.16.27.32.29, 24.15.15.17.22}
+{10.27.7.24.26.11.31.20.29, 3.15.2.23.22.2.16.14, 26.32.8.12.30.19.24.8.6.1.10, 10.3.19}
+{28.26.25.7, 13.28.14.2.8.18, 7.31.2.28.15.11.17.18.19.23.6}
+{25.24.29, 21.18.2.1, 13.3.20}
+{32.25.16, 22.19.5.22.20.31.23.24.14.24.4, 5.27.16.3.30, 12.25.32.2.27.3.3.16, 30.25.8.24.6.29.31}
+{30.24.23.25.32.18.22.12.29.9.22, 11.30}
+{9.22.10.15.5.15, 25.16.9.6, 23.10.13.32.14.20.16.11.14}
+{22.10.27.19.29.20.29.3.12.14.25, 26.32.21.31.27.12, 3.26.32, 17.26.18}
+{5.14.29.2.23.16.20.22, 11.6.11.29.4.5.24.6.26.12, 8.21.17.3.6.3.18, 26.26.22.21.14.11.29.19.14.24}
+{28.8.21.15.16.28.4.16.26.8, 19.6.13.14.22.13.9.29, 11.17.10}
+{25.28.30.24, 26.25.24, 25.10.29.3.6.21.3.31.13}
+{32.24.29.6, 10.18.12.27.24.30.32.7.11.5.13, 20.6.26.3.30}
+{19.26.24.27.6.24.16.27.32.29, 1.31.3}
+{19.10.4.30.32.4.12, 20.25.22.19.22, 17.13.14.29.27.27.13.12.15, 5.1.5.31, 4.15.20.23.12.16.2.16.17}
+{16.13.19.11.18.13.17.17, 17.25.26.23.32, 31.18.27.15.20.29.29}
+{24.15.15.17.22, 24.2.26.24.14.15.31.23.17.26, 12.22.20.4.12, 3.13, 25.32.24.24.28.15.16.10}
+{4.11.19.17.2.22.20.18.13.32.15, 14.1.11, 14.8.15.30.7.29.27.31.4}
+{3.29.19.2.24, 24.23.29.8.24.11.21.10.28.14.27, 32.31.11.22.1, 31.13, 12.21.20.20}
+{28.4, 14.30.13.5.26.9.22.23.14.10, 19.26.32.13.1.12.30.26.22.25}
+{4.26.2.2, 9.30, 18.13.6.12.26.26.26.29.18.20.1, 22.23.22.30}
+{26.11, 7.19.10.12.31.1.27.13.19, 15.17}
+{12.16.13, 14.30.13.5.26.9.22.23.14.10, 21.5.17.19.15.25.18.21.24.9, 18.9.26.7}
+{30.27.8.6.11.19, 22.18.20.23.15.9.12}
+{31.18.32.11.7.25.20.5, 3.15.2.23.22.2.16.14}
+{22.20.30, 23.28.3.30.15.31.32.3.21.9.19, 6.18.1.4.18.23, 1.30.18.31.12.25.4.19.28.12.15, 17.13.19.31.12.18.10.15.14}
+{32.2.11, 22.24.22.25.15.23.13, 25.10.29.3.6.21.3.31.13, 20.32.9}
+{16.8.29.7.21.2.3, 6.27.29.14.8.12.26.3.21.4.1, 21.14.22.29}
+{15.8.10, 23.22.10.1.14.24, 23.5.7.12.11.23.10}
+{6.29.32.13.30.3.16, 24.23.29.8.24.11.21.10.28.14.27}
+{18.17.6.16.6.10, 14.19.30.6.4.10.10.10.22.25.11}
+{14.17.7.30.8.25.26.4, 16.13.19.11.18.13.17.17}
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diff --git a/contrib/ltree/data/ltree.data b/contrib/ltree/data/ltree.data
new file mode 100644
index 0000000..246443e
--- /dev/null
+++ b/contrib/ltree/data/ltree.data
@@ -0,0 +1,1006 @@
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+12.6.14.23.19.21.9.12
+14.6.10.29.25.26.20.24.24
+29.5.18.27.3.21.18.6.14
+4.1.24.24.28.24.18
+9.5.9.3.23.9.25.14.1.29.28
+25.10
+21.10.20.9.3.16.9.10.20
+20.8.19.14.16.7
+21.28.17.22.10.27.4.20.2.32
+1.28.19.8.25.6.20.27.29.27
+12.23.3.19.29.15.12.6
+27.17.17.19.24.9.14.20
+3.29.19.2.24
+19.9.32.23.13.24.1
+27.3.3.11.21.4.25
+25.16.9.6
+4.14.17.12.20.17.1.22.3
+19.7
+28.15.25.7.13.6.19.2
+1.28.3.22
+13.14.13.10.28.26.9.18.27.21
+26.25.10.10.13
+27.26.29
+6.27.29.14.8.12.26.3.21.4.1
+4.14.10.19.16
+5.4.8.25.12.27.2.29.28.3
+8.21.17.3.6.3.18
+3.6.24.21.20.32.3.4.26.5
+27.17.15.7.28.20
+21.17.27.23.15
+11.29
+26.18
+27.5.15.1.15.16.21
+21.28.24.23.3.11.7.12.22.32
+3.26
+31.29.4.29.24.30.30.32.10.23
+24.9.15.1.14.29.6.4
+13.8.23.13.11.18.24.21.11.24.10
+31.17.2.30.11
+8.5.24.9.29.32.31.30.13.9.7
+21.14.13
+3.21.6.13.12.18.25
+2.13.9.23.21.2
+22.17.24.14.21.15.12.18.17.25.11
+25.28.30.24
+24.2.6.7.16.7.28
+22.28.20.6.32.32
+1.13.16.27.11.16.30.2.9.18.4
+11.17.17.24.11.23.17.17.18.10.22
+22.16
+4.22.17.10.19.9.8.19.28.3.9
+12.27.30.12.24.2.20
+23.20.24
+28.6.8.22.25
+16.2.14.3.26.11
+15.4.15
+19.11.29.13.15.27.12.15.14.12
+28.20.8.9.9.28.30.29
+30.16.3.21.10
+11.1.3.28.30.21.24.14
+32.31.26.19.13.29.4.25
+8.13.6.12.18.7
+9.21.28.8.12.15.3.13.10.11
+4.19.16.15.5.2.25.8.28.14.2
+28.25.29.4.13.5.6
+25.24.29
+1.19.22.11.14.7.32.23.19.14
+22.22.10.30.5.15.25.21.19.11
+21.30.19.6.28.1.32.2.14.14
+26.5.29.7.28
+1.4.14.32.14
+19.2.9.29.6
+6.13.31.5.7.26
+27.11.14.17.24
+15.1.8
+11.15.11.19.29.10
+10.3.19
+5.3.29.9.22
+5.20
+13.9.9.27.31.11.25.9.27.22.13
+10.2.17.26.16.7.19.6.23.3
+30.8.18.5.20.6.15
+32.1.23.20.14.12.23.5.32.15
+3.9.11.23.32.26.24.28
+4.26.23.6.19.31.10.4.22
+1.10.23.25.5.11
+4.26.2.2
+14.30.2.21.15.16.13
+11.6.11.29.4.5.24.6.26.12
+19.26.32.13.1.12.30.26.22.25
+30.25.24.22
+6.11.11.5.16.8.14.12.9
+2.24.5.3.4.10.27.26.17.28.16
+3.18.8.22.7.28.32.31.3
+25.9
+12.14.20.8.28.4
+3.21.16.24.23.12.16.32.3
+8.3.18.13.30.20.27.26.17.28
+3.3
+8.32.30.1
+26.14.5.32.10
+24.20.23
+8.16.20.24.20.6.10.21
+23.12.32.22.19.1.22.4
+24.21.14.25.11.3.20.6.6.16
+12.4.10.17.4.10.23.3
+19.6.24.32.30.13.6.25.8.28
+1.3.15.11.11.25.24.21.19
+3.11.18.21.5.20.30
+9.23.21.22.5.29.15.21
+17.24.15.27.3.32.4.22.20.6.24
+23.24.11.31.10.31.18.28.13.18.6
+4.21.9.1.2.14.8.17.13.26
+23.28.20.25.30.24.15
+4.9
+8.13.14.11.11.29.22.4.4.10
+3.10.4.5.28.11
+29.10.17.11.28.12.18.5.19.15.21
+22.19.20.5.2.20
+19.6.13.14.22.13.9.29
+1.10.4.18.22.23.24
+28.11.27.21.14.16
+1.11.10.19.6.1.26.17.2.22
+24.17.31.20.12.9.19.29.18
+24.17.24
+19.5.20.3.4.2.3
+18.31.32.29.22.1.31.11.28
+15.21.22
+10.8.20.11.12.23.22
+9.8.23.2.20.16
+21.32.13.22.3.13.31.23.14.12.9
+4.22.7.19.25
+1.30.31.31.20.16.7
+22.29.29.11
+20.30.17
+30.24.32.15.14.10.11
+30.25.8.24.6.29.31
+9.21.14.19
+21.31.31.25.5.30.26
+20.25.22.19.22
+25.17.2.20.20.3.29.21.3.12
+29.6.12.31.20.23.32.20
+2.30.26.10.14.31.18.2
+28.6
+20.5.4.9.31.14.26.6
+20.1.24.3.30.31
+13.3.8
+25.29
+2.15.14.20.30.26
+5.24.4.31.3.16.25.17.13.26.11
+29.5.32.20.11.7.13.24.17
+24.9
+17.17.14.28.6.30
+4.11.22.4.19.24.4.28.6.8.22
+11.2.27.3
+28.25.10.25.19.15
+14.26.25.4.12.26.8
+3.10
+4.14
+28.31.10.28.22.26.16.15
+28.2.27.1.20
+32.8.5
+21.17.31.10.31.13.9.26.6.14
+13.7
+9.14.27.31.26.21.25.3.20
+17.29.31.8.24.10.18.27.17
+2.1.3.30.24.17.9
+18.15.14
+6.29.32.13.30.3.16
+27.17.3.18.2.13.18
+5.27.21.1.29.29.28
+13.3.20
+14.21.22
+4.18.29.9.16.10
+29.1.2.14.14
+8.13.1
+2.32.10.13.12
+9.10.32
+15.8.3.15.27.14.29.28.6.5.25
+12.22.20.4.12
+14.13.9.13.11.5.5.2.2.32.12
+9.21.20.29.1
+28.14.32.29.2.3.4
+28.9.3.16.17.21.23.30
+24.32.17.23.24.19.23.9.20.18
+15.26.24.31.16.15.17.22.8.30.3
+6.5.27.19.13.26.1.18.9
+2.6.15.26.23.26.24
+4.26.5.26.21.28.17.24.25.23
+25.14.5.32.25
+3.27.18.8.4.21.6.32.30.7.5
+2.11.32.25.23
+8.9.22
+18.18.5.11.7.4.25
+14.3.17.1.14.15.21.4.26
+10.3
+13.12
+27.31.2.16.29.6
+8.2
+27.18.10.4.22
+16.14.3.17.17.26.12.19.19.30
+20.9.29.32.13.7.23
+8.3.3.25.25.15.7.13.21.18
+4.16.7.25.21.7
+17.25.26.23.32
+20.3.1.8.8.30.20
+31.18.25.1.14.29.25.5.22.30
+21.20.28.19.27.9
+30.16.14.9.5.4.10.7.31
+30.22.29.21.19.14.3.2.6
+8.5.30.29.9.31
+23.28.1
+11.16.16.28.14
+18.6.26.2.13.9.6.11.10.11.16
+11.30
+16.5.6.12
+32.24.29.6
+8.31.22.27
+6.18.1.4.18.23
+28.5.13
+26.26.22.21.14.11.29.19.14.24
+29.1
+24.10.10.31.4.29.9
+19.11.10.18.14.13.7.7
+27.29.1.5.30.6.22.16.23.2.28
+3.11.32.11.22.3.7.17.8.13.23
+2.12.14.28.16.21
+24.23.29.8.24.11.21.10.28.14.27
+27.4
+4.11.19.17.2.22.20.18.13.32.15
+7.21.8
+2.27.15.14
+25.9.1.5.9.11.25.4.11.27.32
+25.31
+9.16.2.16.22.24.17.31.14.21.17
+32.1.31
+9.22.10.15.5.15
+12.10.11.9.10.31.4.16.31
+30.24
+15.25.31.11.4.22.16.7.11
+22.8.20.1.10.28.6.27
+10.12.23.22.23.22.20.17.17.9
+3.18.18
+7.7.22.24.17.32.17.25.28
+31.13.9.1.5.12
+25.17.18.17.27
+32.6.31.31
+26.8.28
+14.29
+30.6.4
+27.16
+24.18.16
+27.21.27.5.13.30.17
+23.20.8
+28.14.24.26.6.15.16.32.25.13.8
+13.1.6.17.28.9.15.30.1.27.14
+5.3.17.29
+13.8.15.3.7.31.5.10.15.30
+19.12.26.24.29.3
+11.21.16.27.16
+23.5.7.12.11.23.10
+29.15.29.8.31.26.1
+4.3.20.27.9.1.18.30.12.5.19
+7.19.12.3.21.19.18.5.2.14.10
+8.26.29.13.7.25.31.28.3.32
+12.16.13
+28.25.11.22
+17.26.18
+18.6.2.2.24
+24.11.5
+17.3
+21.14.25.20.13.31.14.20
+23.31.27.16.8.30.20.27
+3.32.2.29.3.32.28.11.29.30
+5.10.2.11.21.9.19
+16.27.8.17.14.17.21.29.14
+25.10.4.28.3.31.19
+16.13.19.11.18.13.17.17
+3.26.32
+5.13.23.4.9
+26.31.16.18.22.13.32.23.9.20
+32.28.1.32.28.10
+15.21.23.30.9.25
+1.20.22.26.2.6.11
+2.1.12.19.29.28.3.31.28.28.10
+14.5.13.19.25.12.32.9.13.16.12
+5.24.24.9.32.26.31
diff --git a/contrib/ltree/expected/ltree.out b/contrib/ltree/expected/ltree.out
new file mode 100644
index 0000000..984cd03
--- /dev/null
+++ b/contrib/ltree/expected/ltree.out
@@ -0,0 +1,8134 @@
+CREATE EXTENSION ltree;
+-- max length for a label
+\set maxlbl 1000
+-- Check whether any of our opclasses fail amvalidate
+SELECT amname, opcname
+FROM pg_opclass opc LEFT JOIN pg_am am ON am.oid = opcmethod
+WHERE opc.oid >= 16384 AND NOT amvalidate(opc.oid);
+ amname | opcname
+--------+---------
+(0 rows)
+
+SELECT ''::ltree;
+ ltree
+-------
+
+(1 row)
+
+SELECT '1'::ltree;
+ ltree
+-------
+ 1
+(1 row)
+
+SELECT '1.2'::ltree;
+ ltree
+-------
+ 1.2
+(1 row)
+
+SELECT '1.2.-3'::ltree;
+ ltree
+--------
+ 1.2.-3
+(1 row)
+
+SELECT '1.2._3'::ltree;
+ ltree
+--------
+ 1.2._3
+(1 row)
+
+-- empty labels not allowed
+SELECT '.2.3'::ltree;
+ERROR: ltree syntax error at character 1
+LINE 1: SELECT '.2.3'::ltree;
+ ^
+SELECT '1..3'::ltree;
+ERROR: ltree syntax error at character 3
+LINE 1: SELECT '1..3'::ltree;
+ ^
+SELECT '1.2.'::ltree;
+ERROR: ltree syntax error
+LINE 1: SELECT '1.2.'::ltree;
+ ^
+DETAIL: Unexpected end of input.
+SELECT repeat('x', :maxlbl)::ltree;
+ repeat
+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+ xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+(1 row)
+
+SELECT repeat('x', :maxlbl + 1)::ltree;
+ERROR: label string is too long
+DETAIL: Label length is 1001, must be at most 1000, at character 1002.
+SELECT ltree2text('1.2.3.34.sdf');
+ ltree2text
+--------------
+ 1.2.3.34.sdf
+(1 row)
+
+SELECT text2ltree('1.2.3.34.sdf');
+ text2ltree
+--------------
+ 1.2.3.34.sdf
+(1 row)
+
+SELECT subltree('Top.Child1.Child2',1,2);
+ subltree
+----------
+ Child1
+(1 row)
+
+SELECT subpath('Top.Child1.Child2',1,2);
+ subpath
+---------------
+ Child1.Child2
+(1 row)
+
+SELECT subpath('Top.Child1.Child2',-1,1);
+ subpath
+---------
+ Child2
+(1 row)
+
+SELECT subpath('Top.Child1.Child2',0,-2);
+ subpath
+---------
+ Top
+(1 row)
+
+SELECT subpath('Top.Child1.Child2',0,-1);
+ subpath
+------------
+ Top.Child1
+(1 row)
+
+SELECT subpath('Top.Child1.Child2',0,0);
+ subpath
+---------
+
+(1 row)
+
+SELECT subpath('Top.Child1.Child2',1,0);
+ subpath
+---------
+
+(1 row)
+
+SELECT subpath('Top.Child1.Child2',0);
+ subpath
+-------------------
+ Top.Child1.Child2
+(1 row)
+
+SELECT subpath('Top.Child1.Child2',1);
+ subpath
+---------------
+ Child1.Child2
+(1 row)
+
+SELECT index('1.2.3.4.5.6','1.2');
+ index
+-------
+ 0
+(1 row)
+
+SELECT index('a.1.2.3.4.5.6','1.2');
+ index
+-------
+ 1
+(1 row)
+
+SELECT index('a.1.2.3.4.5.6','1.2.3');
+ index
+-------
+ 1
+(1 row)
+
+SELECT index('a.1.2.3.4.5.6','1.2.3.j');
+ index
+-------
+ -1
+(1 row)
+
+SELECT index('a.1.2.3.4.5.6','1.2.3.j.4.5.5.5.5.5.5');
+ index
+-------
+ -1
+(1 row)
+
+SELECT index('a.1.2.3.4.5.6','1.2.3');
+ index
+-------
+ 1
+(1 row)
+
+SELECT index('a.1.2.3.4.5.6','6');
+ index
+-------
+ 6
+(1 row)
+
+SELECT index('a.1.2.3.4.5.6','6.1');
+ index
+-------
+ -1
+(1 row)
+
+SELECT index('a.1.2.3.4.5.6','5.6');
+ index
+-------
+ 5
+(1 row)
+
+SELECT index('0.1.2.3.5.4.5.6','5.6');
+ index
+-------
+ 6
+(1 row)
+
+SELECT index('0.1.2.3.5.4.5.6.8.5.6.8','5.6',3);
+ index
+-------
+ 6
+(1 row)
+
+SELECT index('0.1.2.3.5.4.5.6.8.5.6.8','5.6',6);
+ index
+-------
+ 6
+(1 row)
+
+SELECT index('0.1.2.3.5.4.5.6.8.5.6.8','5.6',7);
+ index
+-------
+ 9
+(1 row)
+
+SELECT index('0.1.2.3.5.4.5.6.8.5.6.8','5.6',-7);
+ index
+-------
+ 6
+(1 row)
+
+SELECT index('0.1.2.3.5.4.5.6.8.5.6.8','5.6',-4);
+ index
+-------
+ 9
+(1 row)
+
+SELECT index('0.1.2.3.5.4.5.6.8.5.6.8','5.6',-3);
+ index
+-------
+ 9
+(1 row)
+
+SELECT index('0.1.2.3.5.4.5.6.8.5.6.8','5.6',-2);
+ index
+-------
+ -1
+(1 row)
+
+SELECT index('0.1.2.3.5.4.5.6.8.5.6.8','5.6',-20000);
+ index
+-------
+ 6
+(1 row)
+
+SELECT 'Top.Child1.Child2'::ltree || 'Child3'::text;
+ ?column?
+--------------------------
+ Top.Child1.Child2.Child3
+(1 row)
+
+SELECT 'Top.Child1.Child2'::ltree || 'Child3'::ltree;
+ ?column?
+--------------------------
+ Top.Child1.Child2.Child3
+(1 row)
+
+SELECT 'Top_0'::ltree || 'Top.Child1.Child2'::ltree;
+ ?column?
+-------------------------
+ Top_0.Top.Child1.Child2
+(1 row)
+
+SELECT 'Top.Child1.Child2'::ltree || ''::ltree;
+ ?column?
+-------------------
+ Top.Child1.Child2
+(1 row)
+
+SELECT ''::ltree || 'Top.Child1.Child2'::ltree;
+ ?column?
+-------------------
+ Top.Child1.Child2
+(1 row)
+
+SELECT lca('{la.2.3,1.2.3.4.5.6,""}') IS NULL;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT lca('{la.2.3,1.2.3.4.5.6}') IS NULL;
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT lca('{1.la.2.3,1.2.3.4.5.6}');
+ lca
+-----
+ 1
+(1 row)
+
+SELECT lca('{1.2.3,1.2.3.4.5.6}');
+ lca
+-----
+ 1.2
+(1 row)
+
+SELECT lca('{1.2.3}');
+ lca
+-----
+ 1.2
+(1 row)
+
+SELECT lca('{1}'), lca('{1}') IS NULL;
+ lca | ?column?
+-----+----------
+ | f
+(1 row)
+
+SELECT lca('{}') IS NULL;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT lca('1.la.2.3','1.2.3.4.5.6');
+ lca
+-----
+ 1
+(1 row)
+
+SELECT lca('1.2.3','1.2.3.4.5.6');
+ lca
+-----
+ 1.2
+(1 row)
+
+SELECT lca('1.2.2.3','1.2.3.4.5.6');
+ lca
+-----
+ 1.2
+(1 row)
+
+SELECT lca('1.2.2.3','1.2.3.4.5.6','');
+ lca
+-----
+
+(1 row)
+
+SELECT lca('1.2.2.3','1.2.3.4.5.6','2');
+ lca
+-----
+
+(1 row)
+
+SELECT lca('1.2.2.3','1.2.3.4.5.6','1');
+ lca
+-----
+
+(1 row)
+
+SELECT '1'::lquery;
+ lquery
+--------
+ 1
+(1 row)
+
+SELECT '4|3|2'::lquery;
+ lquery
+--------
+ 4|3|2
+(1 row)
+
+SELECT '1.2'::lquery;
+ lquery
+--------
+ 1.2
+(1 row)
+
+SELECT '1.4|3|2'::lquery;
+ lquery
+---------
+ 1.4|3|2
+(1 row)
+
+SELECT '1.0'::lquery;
+ lquery
+--------
+ 1.0
+(1 row)
+
+SELECT '4|3|2.0'::lquery;
+ lquery
+---------
+ 4|3|2.0
+(1 row)
+
+SELECT '1.2.0'::lquery;
+ lquery
+--------
+ 1.2.0
+(1 row)
+
+SELECT '1.4|3|2.0'::lquery;
+ lquery
+-----------
+ 1.4|3|2.0
+(1 row)
+
+SELECT '1.*'::lquery;
+ lquery
+--------
+ 1.*
+(1 row)
+
+SELECT '4|3|2.*'::lquery;
+ lquery
+---------
+ 4|3|2.*
+(1 row)
+
+SELECT '1.2.*'::lquery;
+ lquery
+--------
+ 1.2.*
+(1 row)
+
+SELECT '1.4|3|2.*'::lquery;
+ lquery
+-----------
+ 1.4|3|2.*
+(1 row)
+
+SELECT '*.1.*'::lquery;
+ lquery
+--------
+ *.1.*
+(1 row)
+
+SELECT '*.4|3|2.*'::lquery;
+ lquery
+-----------
+ *.4|3|2.*
+(1 row)
+
+SELECT '*.1.2.*'::lquery;
+ lquery
+---------
+ *.1.2.*
+(1 row)
+
+SELECT '*.1.4|3|2.*'::lquery;
+ lquery
+-------------
+ *.1.4|3|2.*
+(1 row)
+
+SELECT '1.*.4|3|2'::lquery;
+ lquery
+-----------
+ 1.*.4|3|2
+(1 row)
+
+SELECT '1.*.4|3|2.0'::lquery;
+ lquery
+-------------
+ 1.*.4|3|2.0
+(1 row)
+
+SELECT '1.*.4|3|2.*{1,4}'::lquery;
+ lquery
+------------------
+ 1.*.4|3|2.*{1,4}
+(1 row)
+
+SELECT '1.*.4|3|2.*{,4}'::lquery;
+ lquery
+-----------------
+ 1.*.4|3|2.*{,4}
+(1 row)
+
+SELECT '1.*.4|3|2.*{1,}'::lquery;
+ lquery
+-----------------
+ 1.*.4|3|2.*{1,}
+(1 row)
+
+SELECT '1.*.4|3|2.*{1}'::lquery;
+ lquery
+----------------
+ 1.*.4|3|2.*{1}
+(1 row)
+
+SELECT 'foo.bar{,}.!a*|b{1,}.c{,44}.d{3,4}'::lquery;
+ lquery
+------------------------------------
+ foo.bar{,}.!a*|b{1,}.c{,44}.d{3,4}
+(1 row)
+
+SELECT 'foo*@@*'::lquery;
+ lquery
+--------
+ foo@*
+(1 row)
+
+SELECT 'qwerty%@*.tu'::lquery;
+ lquery
+--------------
+ qwerty%@*.tu
+(1 row)
+
+-- empty labels not allowed
+SELECT '.2.3'::lquery;
+ERROR: lquery syntax error at character 1
+LINE 1: SELECT '.2.3'::lquery;
+ ^
+SELECT '1..3'::lquery;
+ERROR: lquery syntax error at character 3
+LINE 1: SELECT '1..3'::lquery;
+ ^
+SELECT '1.2.'::lquery;
+ERROR: lquery syntax error
+LINE 1: SELECT '1.2.'::lquery;
+ ^
+DETAIL: Unexpected end of input.
+SELECT '@.2.3'::lquery;
+ERROR: lquery syntax error at character 1
+LINE 1: SELECT '@.2.3'::lquery;
+ ^
+SELECT '1.@.3'::lquery;
+ERROR: lquery syntax error at character 3
+LINE 1: SELECT '1.@.3'::lquery;
+ ^
+SELECT '1.2.@'::lquery;
+ERROR: lquery syntax error at character 5
+LINE 1: SELECT '1.2.@'::lquery;
+ ^
+SELECT '!.2.3'::lquery;
+ERROR: lquery syntax error at character 2
+LINE 1: SELECT '!.2.3'::lquery;
+ ^
+DETAIL: Empty labels are not allowed.
+SELECT '1.!.3'::lquery;
+ERROR: lquery syntax error at character 4
+LINE 1: SELECT '1.!.3'::lquery;
+ ^
+DETAIL: Empty labels are not allowed.
+SELECT '1.2.!'::lquery;
+ERROR: lquery syntax error at character 6
+LINE 1: SELECT '1.2.!'::lquery;
+ ^
+DETAIL: Empty labels are not allowed.
+SELECT '1.2.3|@.4'::lquery;
+ERROR: lquery syntax error at character 7
+LINE 1: SELECT '1.2.3|@.4'::lquery;
+ ^
+SELECT (repeat('x', :maxlbl) || '*@@*')::lquery;
+ lquery
+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+ xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx@*
+(1 row)
+
+SELECT (repeat('x', :maxlbl + 1) || '*@@*')::lquery;
+ERROR: label string is too long
+DETAIL: Label length is 1001, must be at most 1000, at character 1002.
+SELECT ('!' || repeat('x', :maxlbl))::lquery;
+ lquery
+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+ !xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+(1 row)
+
+SELECT ('!' || repeat('x', :maxlbl + 1))::lquery;
+ERROR: label string is too long
+DETAIL: Label length is 1001, must be at most 1000, at character 1003.
+SELECT nlevel('1.2.3.4');
+ nlevel
+--------
+ 4
+(1 row)
+
+SELECT nlevel(('1' || repeat('.1', 65534))::ltree);
+ nlevel
+--------
+ 65535
+(1 row)
+
+SELECT nlevel(('1' || repeat('.1', 65535))::ltree);
+ERROR: number of ltree labels (65536) exceeds the maximum allowed (65535)
+SELECT nlevel(('1' || repeat('.1', 65534))::ltree || '1');
+ERROR: number of ltree levels (65536) exceeds the maximum allowed (65535)
+SELECT ('1' || repeat('.1', 65534))::lquery IS NULL;
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT ('1' || repeat('.1', 65535))::lquery IS NULL;
+ERROR: number of lquery items (65536) exceeds the maximum allowed (65535)
+SELECT '*{65535}'::lquery;
+ lquery
+----------
+ *{65535}
+(1 row)
+
+SELECT '*{65536}'::lquery;
+ERROR: lquery syntax error
+LINE 1: SELECT '*{65536}'::lquery;
+ ^
+DETAIL: Low limit (65536) exceeds the maximum allowed (65535), at character 3.
+SELECT '*{,65534}'::lquery;
+ lquery
+-----------
+ *{,65534}
+(1 row)
+
+SELECT '*{,65535}'::lquery;
+ lquery
+--------
+ *
+(1 row)
+
+SELECT '*{,65536}'::lquery;
+ERROR: lquery syntax error
+LINE 1: SELECT '*{,65536}'::lquery;
+ ^
+DETAIL: High limit (65536) exceeds the maximum allowed (65535), at character 4.
+SELECT '*{4,3}'::lquery;
+ERROR: lquery syntax error
+LINE 1: SELECT '*{4,3}'::lquery;
+ ^
+DETAIL: Low limit (4) is greater than high limit (3), at character 5.
+SELECT '1.2'::ltree < '2.2'::ltree;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT '1.2'::ltree <= '2.2'::ltree;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT '2.2'::ltree = '2.2'::ltree;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT '3.2'::ltree >= '2.2'::ltree;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT '3.2'::ltree > '2.2'::ltree;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT '1.2.3'::ltree @> '1.2.3.4'::ltree;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT '1.2.3.4'::ltree @> '1.2.3.4'::ltree;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT '1.2.3.4.5'::ltree @> '1.2.3.4'::ltree;
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT '1.3.3'::ltree @> '1.2.3.4'::ltree;
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.b.c.d.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'A.b.c.d.e';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'A@.b.c.d.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'aa.b.c.d.e'::ltree ~ 'A@.b.c.d.e';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'aa.b.c.d.e'::ltree ~ 'A*.b.c.d.e';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'aa.b.c.d.e'::ltree ~ 'A*@.b.c.d.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'aa.b.c.d.e'::ltree ~ 'A*@|g.b.c.d.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'g.b.c.d.e'::ltree ~ 'A*@|g.b.c.d.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.b.c.d.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{3}.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{2}.e';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{4}.e';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{,4}.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{2,}.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{2,4}.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{2,3}.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{2,3}';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{2,4}';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{2,5}';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*{2,3}.e';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*{2,4}.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*{2,5}.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.e.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.d.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.a.*.d.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.!d.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.!d';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '!d.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '!a.*';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.!e';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.!e.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*.!e';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*.!d';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*.!d.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*.!f.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.a.*.!f.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.a.*.!d.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.a.!d.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.a.!d';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.!d.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.a.*.!d.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.!b.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.!b.c.*';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.!b.*.c.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '!b.*.c.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '!b.b.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '!b.*.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '!b.!c.*.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '!b.*.!c.*.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*{2}.!b.*.!c.*.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*{1}.!b.*.!c.*.e';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*{1}.!b.*{1}.!c.*.e';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.!b.*{1}.!c.*.e';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '!b.*{1}.!c.*.e';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.!b.*{1}.!c.*.e';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.!b.*.!c.*.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '!b.!c.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '!b.*.!c.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*{2}.!b.*.!c.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*{1}.!b.*.!c.*';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*{1}.!b.*{1}.!c.*';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.!b.*{1}.!c.*';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '!b.*{1}.!c.*';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.!b.*{1}.!c.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '*.!b.*.!c.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{2}.*{2}';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{1}.*{2}.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{1}.*{4}';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{5}.*';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT '5.0.1.0'::ltree ~ '5.!0.!0.0';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b'::ltree ~ '!a.!a';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a{,}';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a{1,}.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a{,}.!a{,}';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.a'::ltree ~ 'a{,}.!a{,}';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.a'::ltree ~ 'a{,2}.!a{1,}';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a{,2}.!a{1,}';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '!x{,}';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '!c{,}';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '!c{0,3}.!a{2,}';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ~ '!c{0,3}.!d{2,}.*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'QWER_TY'::ltree ~ 'q%@*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'QWER_TY'::ltree ~ 'q%@*%@*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'QWER_TY'::ltree ~ 'Q_t%@*';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'QWER_GY'::ltree ~ 'q_t%@*';
+ ?column?
+----------
+ f
+(1 row)
+
+--ltxtquery
+SELECT '!tree & aWdf@*'::ltxtquery;
+ ltxtquery
+----------------
+ !tree & aWdf@*
+(1 row)
+
+SELECT 'tree & aw_qw%*'::ltxtquery;
+ ltxtquery
+----------------
+ tree & aw_qw%*
+(1 row)
+
+SELECT 'tree & aw-qw%*'::ltxtquery;
+ ltxtquery
+----------------
+ tree & aw-qw%*
+(1 row)
+
+SELECT 'ltree.awdfg'::ltree @ '!tree & aWdf@*'::ltxtquery;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'tree.awdfg'::ltree @ '!tree & aWdf@*'::ltxtquery;
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'tree.awdfg'::ltree @ '!tree | aWdf@*'::ltxtquery;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'tree.awdfg'::ltree @ 'tree | aWdf@*'::ltxtquery;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'tree.awdfg'::ltree @ 'tree & aWdf@*'::ltxtquery;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'tree.awdfg'::ltree @ 'tree & aWdf@'::ltxtquery;
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'tree.awdfg'::ltree @ 'tree & aWdf*'::ltxtquery;
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'tree.awdfg'::ltree @ 'tree & aWdf'::ltxtquery;
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'tree.awdfg'::ltree @ 'tree & awdf*'::ltxtquery;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'tree.awdfg'::ltree @ 'tree & aWdfg@'::ltxtquery;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'tree.awdfg_qwerty'::ltree @ 'tree & aw_qw%*'::ltxtquery;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'tree.awdfg_qwerty'::ltree @ 'tree & aw_rw%*'::ltxtquery;
+ ?column?
+----------
+ f
+(1 row)
+
+--arrays
+SELECT '{1.2.3}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT '{1.2.3.4}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT '{1.2.3.4.5}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT '{1.3.3}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT '{5.67.8, 1.2.3}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT '{5.67.8, 1.2.3.4}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT '{5.67.8, 1.2.3.4.5}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT '{5.67.8, 1.3.3}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT '{1.2.3, 7.12.asd}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT '{1.2.3.4, 7.12.asd}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT '{1.2.3.4.5, 7.12.asd}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT '{1.3.3, 7.12.asd}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT '{ltree.asd, tree.awdfg}'::ltree[] @ 'tree & aWdfg@'::ltxtquery;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT '{j.k.l.m, g.b.c.d.e}'::ltree[] ~ 'A*@|g.b.c.d.e';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ? '{A.b.c.d.e}';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ? '{a.b.c.d.e}';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'a.b.c.d.e'::ltree ? '{A.b.c.d.e, a.*}';
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT '{a.b.c.d.e,B.df}'::ltree[] ? '{A.b.c.d.e}';
+ ?column?
+----------
+ f
+(1 row)
+
+SELECT '{a.b.c.d.e,B.df}'::ltree[] ? '{A.b.c.d.e,*.df}';
+ ?column?
+----------
+ t
+(1 row)
+
+--extractors
+SELECT ('{3456,1.2.3.34}'::ltree[] ?@> '1.2.3.4') is null;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT '{3456,1.2.3}'::ltree[] ?@> '1.2.3.4';
+ ?column?
+----------
+ 1.2.3
+(1 row)
+
+SELECT '{3456,1.2.3.4}'::ltree[] ?<@ '1.2.3';
+ ?column?
+----------
+ 1.2.3.4
+(1 row)
+
+SELECT ('{3456,1.2.3.4}'::ltree[] ?<@ '1.2.5') is null;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT '{ltree.asd, tree.awdfg}'::ltree[] ?@ 'tree & aWdfg@'::ltxtquery;
+ ?column?
+------------
+ tree.awdfg
+(1 row)
+
+SELECT '{j.k.l.m, g.b.c.d.e}'::ltree[] ?~ 'A*@|g.b.c.d.e';
+ ?column?
+-----------
+ g.b.c.d.e
+(1 row)
+
+CREATE TABLE ltreetest (t ltree);
+\copy ltreetest FROM 'data/ltree.data'
+SELECT * FROM ltreetest WHERE t < '12.3' order by t asc;
+ t
+----------------------------------
+
+ 1
+ 1.1
+ 1.1.1
+ 1.1.1.1
+ 1.1.1.2
+ 1.1.1.2.1
+ 1.1.2
+ 1.1.2.1
+ 1.1.3
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+ 1.14.3.7.3.17.2.29
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+ 1.18.29.30.22.14.3.20.15.21.20
+ 1.19.22.11.14.7.32.23.19.14
+ 1.20.18.25.3.24.25.10.9
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+ 1.26
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+ 1.28.19.8.25.6.20.27.29.27
+ 1.28.3.22
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+ 1.30.31.31.20.16.7
+ 1.31.3
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+ 1.8
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+ 11.29
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+ 11.8.18
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+ 12.11.17.1.2
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+ 12.18
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+ 12.21.20.20
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+ 12.29.17.2.20.29.1.11.19.8.12
+ 12.29.26.18.4.21.28.8.13.3
+(123 rows)
+
+SELECT * FROM ltreetest WHERE t <= '12.3' order by t asc;
+ t
+----------------------------------
+
+ 1
+ 1.1
+ 1.1.1
+ 1.1.1.1
+ 1.1.1.2
+ 1.1.1.2.1
+ 1.1.2
+ 1.1.2.1
+ 1.1.3
+ 1.1.7.32.11.22
+ 1.10.21
+ 1.10.23.25.5.11
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+ 1.10.5.22.13
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+ 1.13.16.27.11.16.30.2.9.18.4
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+ 1.16.8.18.14.16.21.25.6
+ 1.18.29.30.22.14.3.20.15.21.20
+ 1.19.22.11.14.7.32.23.19.14
+ 1.20.18.25.3.24.25.10.9
+ 1.20.22.26.2.6.11
+ 1.21.28.4.23
+ 1.22.19.24.8.11
+ 1.22.29.5.16
+ 1.25.7.9.26.17.31.20.13
+ 1.26
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+ 1.27.22.23.2.26.32.17.7.9
+ 1.28.19.8.25.6.20.27.29.27
+ 1.28.3.22
+ 1.29.18.1.21.12.13.27.32.15
+ 1.3.15.11.11.25.24.21.19
+ 1.30.18.31.12.25.4.19.28.12.15
+ 1.30.31.31.20.16.7
+ 1.31.3
+ 1.4.14.32.14
+ 1.8
+ 1.9.18.10.1.26.22.16.17
+ 10.11.25.2.24.18.18.21.6.26.21
+ 10.12.23.22.23.22.20.17.17.9
+ 10.12.9.6.6.26.14.8.23.1.25
+ 10.13.12.8.4.8.11.30
+ 10.13.22.1.8.30.9.24.1.2.1
+ 10.15.16.3
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+ 10.16.19.7.15
+ 10.18.12.27.24.30.32.7.11.5.13
+ 10.2.17.26.16.7.19.6.23.3
+ 10.20
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+ 10.26.27.23.4.31.11.25.29
+ 10.26.30.15.1
+ 10.27.7.24.26.11.31.20.29
+ 10.28.22.29.13.19.6.7.6.14
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+ 10.29
+ 10.29.26.4.27.17.11
+ 10.3
+ 10.3.19
+ 10.31
+ 10.31.25.31.24.16.17
+ 10.32.14
+ 10.5.23.5.32.9.18.5.30
+ 10.5.5.15.29.2
+ 10.7.9
+ 10.8.20.11.12.23.22
+ 11.1
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+ 11.10
+ 11.10.22.18
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+ 11.11.9.30.15.29.15.18
+ 11.12.6.21
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+ 11.15.11.19.29.10
+ 11.16.16.28.14
+ 11.17.10
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+ 11.18.4.8.3.13.14.28.18.31
+ 11.19.23.3.6.11
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+ 11.21.16.27.16
+ 11.22.28.8.12.23.25.15.21.28
+ 11.29
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+ 11.32.18.31
+ 11.6.11.29.4.5.24.6.26.12
+ 11.7.31.15.22
+ 11.8.18
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+ 12.11.17.1.2
+ 12.11.20.20.29
+ 12.13.16.17.29.27.16.14.9.19.9
+ 12.13.5.31
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+ 12.15.10.17.18.13
+ 12.16.13
+ 12.16.2.4.15
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+ 12.18
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+ 12.21.20.20
+ 12.22.20.4.12
+ 12.23.3.19.29.15.12.6
+ 12.24.29.32.32.29.2
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+ 12.28.12.24.28.15.5.12.30.13.21
+ 12.29.17.2.20.29.1.11.19.8.12
+ 12.29.26.18.4.21.28.8.13.3
+ 12.3
+(124 rows)
+
+SELECT * FROM ltreetest WHERE t = '12.3' order by t asc;
+ t
+------
+ 12.3
+(1 row)
+
+SELECT * FROM ltreetest WHERE t >= '12.3' order by t asc;
+ t
+----------------------------------
+ 12.3
+ 12.4.10.17.4.10.23.3
+ 12.4.12.13.25.30.30.8.9.12
+ 12.4.24.6.1.13.5.20
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+ 12.7.28.26.14.21.18.31.5.15.11
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+ 13.12
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+ 13.28.9.3
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+ 13.9.9.27.31.11.25.9.27.22.13
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+
+SELECT * FROM ltreetest WHERE t > '12.3' order by t asc;
+ t
+----------------------------------
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+(882 rows)
+
+SELECT * FROM ltreetest WHERE t @> '1.1.1' order by t asc;
+ t
+-------
+
+ 1
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+(4 rows)
+
+SELECT * FROM ltreetest WHERE t <@ '1.1.1' order by t asc;
+ t
+-----------
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+(4 rows)
+
+SELECT * FROM ltreetest WHERE t @ '23 & 1' order by t asc;
+ t
+--------------------------------
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+ 9.5.9.3.23.9.25.14.1.29.28
+(39 rows)
+
+SELECT * FROM ltreetest WHERE t ~ '1.1.1.*' order by t asc;
+ t
+-----------
+ 1.1.1
+ 1.1.1.1
+ 1.1.1.2
+ 1.1.1.2.1
+(4 rows)
+
+SELECT * FROM ltreetest WHERE t ~ '*.1' order by t asc;
+ t
+--------------------------------
+ 1
+ 1.1
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+ 8.13.1
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+ 8.32.30.1
+ 9.21.20.29.1
+(34 rows)
+
+SELECT * FROM ltreetest WHERE t ~ '23.*{1}.1' order by t asc;
+ t
+---------
+ 23.28.1
+(1 row)
+
+SELECT * FROM ltreetest WHERE t ~ '23.*.1' order by t asc;
+ t
+---------------------------
+ 23.17.22.1.23.4.29.32.4.1
+ 23.28.1
+ 23.3.32.21.5.14.10.17.1
+(3 rows)
+
+SELECT * FROM ltreetest WHERE t ~ '23.*.2' order by t asc;
+ t
+------------------
+ 23.20.12.16.15.2
+(1 row)
+
+SELECT * FROM ltreetest WHERE t ? '{23.*.1,23.*.2}' order by t asc;
+ t
+---------------------------
+ 23.17.22.1.23.4.29.32.4.1
+ 23.20.12.16.15.2
+ 23.28.1
+ 23.3.32.21.5.14.10.17.1
+(4 rows)
+
+create unique index tstidx on ltreetest (t);
+set enable_seqscan=off;
+SELECT * FROM ltreetest WHERE t < '12.3' order by t asc;
+ t
+----------------------------------
+
+ 1
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+ 12.29.17.2.20.29.1.11.19.8.12
+ 12.29.26.18.4.21.28.8.13.3
+(123 rows)
+
+SELECT * FROM ltreetest WHERE t <= '12.3' order by t asc;
+ t
+----------------------------------
+
+ 1
+ 1.1
+ 1.1.1
+ 1.1.1.1
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+ 12.29.17.2.20.29.1.11.19.8.12
+ 12.29.26.18.4.21.28.8.13.3
+ 12.3
+(124 rows)
+
+SELECT * FROM ltreetest WHERE t = '12.3' order by t asc;
+ t
+------
+ 12.3
+(1 row)
+
+SELECT * FROM ltreetest WHERE t >= '12.3' order by t asc;
+ t
+----------------------------------
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+
+SELECT * FROM ltreetest WHERE t > '12.3' order by t asc;
+ t
+----------------------------------
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+(882 rows)
+
+drop index tstidx;
+create index tstidx on ltreetest using gist (t);
+set enable_seqscan=off;
+SELECT * FROM ltreetest WHERE t < '12.3' order by t asc;
+ t
+----------------------------------
+
+ 1
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+(123 rows)
+
+SELECT * FROM ltreetest WHERE t <= '12.3' order by t asc;
+ t
+----------------------------------
+
+ 1
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+(124 rows)
+
+SELECT * FROM ltreetest WHERE t = '12.3' order by t asc;
+ t
+------
+ 12.3
+(1 row)
+
+SELECT * FROM ltreetest WHERE t >= '12.3' order by t asc;
+ t
+----------------------------------
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+(883 rows)
+
+SELECT * FROM ltreetest WHERE t > '12.3' order by t asc;
+ t
+----------------------------------
+ 12.4.10.17.4.10.23.3
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+ 9.7.31.11.8.23
+ 9.8.23.2.20.16
+ 9.9.13.9.14.27
+(882 rows)
+
+SELECT * FROM ltreetest WHERE t @> '1.1.1' order by t asc;
+ t
+-------
+
+ 1
+ 1.1
+ 1.1.1
+(4 rows)
+
+SELECT * FROM ltreetest WHERE t <@ '1.1.1' order by t asc;
+ t
+-----------
+ 1.1.1
+ 1.1.1.1
+ 1.1.1.2
+ 1.1.1.2.1
+(4 rows)
+
+SELECT * FROM ltreetest WHERE t @ '23 & 1' order by t asc;
+ t
+--------------------------------
+ 1.10.23.25.5.11
+ 1.10.4.18.22.23.24
+ 1.12.25.26.22.8.15.23
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+ 10.12.9.6.6.26.14.8.23.1.25
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+ 14.1.15.25.27.23.25.26.28.10
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+ 15.11.26.1.30.6.23.5
+ 19.22.29.32.1.21.26.24.23.17
+ 19.9.32.23.13.24.1
+ 21.23.17.8.23.11.8.1
+ 22.30.31.24.23.22.5.20.28.1
+ 23.1.23.18.12.29
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+ 23.12.32.22.19.1.22.4
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+ 23.17.25.4.1.16.29.10
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+ 23.22.10.1.14.24
+ 23.28.1
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+ 28.23.2.30.3.8.1.15.15.14.13
+ 29.23.1.21.31.8
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+ 31.30.23.7.7.24.32.10.11.1.31
+ 32.1.23.20.14.12.23.5.32.15
+ 32.15.20.28.5.1.23.4
+ 5.13.23.19.28.26.27.6.1.22
+ 6.18.1.4.18.23
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+ 8.16.1.16.28.6.3.22.6.23
+ 8.2.18.23.5.16.17.1
+ 9.5.9.3.23.9.25.14.1.29.28
+(39 rows)
+
+SELECT * FROM ltreetest WHERE t ~ '1.1.1.*' order by t asc;
+ t
+-----------
+ 1.1.1
+ 1.1.1.1
+ 1.1.1.2
+ 1.1.1.2.1
+(4 rows)
+
+SELECT * FROM ltreetest WHERE t ~ '*.1' order by t asc;
+ t
+--------------------------------
+ 1
+ 1.1
+ 1.1.1
+ 1.1.1.1
+ 1.1.1.2.1
+ 1.1.2.1
+ 1.26.15.23.5.31.29.11.19.28.1
+ 10.13.22.1.8.30.9.24.1.2.1
+ 10.22.1
+ 10.26.30.15.1
+ 11.1
+ 12.1.1
+ 17.25.2.13.10.27.13.1
+ 18.13.6.12.26.26.26.29.18.20.1
+ 19.20.25.7.27.28.27.17.9.3.1
+ 19.9.32.23.13.24.1
+ 20.17.18.21.1
+ 20.4.27.31.1
+ 21.18.2.1
+ 21.23.17.8.23.11.8.1
+ 22.30.31.24.23.22.5.20.28.1
+ 23.17.22.1.23.4.29.32.4.1
+ 23.28.1
+ 23.3.32.21.5.14.10.17.1
+ 25.6.12.16.1
+ 29.1
+ 29.15.29.8.31.26.1
+ 32.31.11.22.1
+ 4.7.1
+ 6.27.29.14.8.12.26.3.21.4.1
+ 8.13.1
+ 8.2.18.23.5.16.17.1
+ 8.32.30.1
+ 9.21.20.29.1
+(34 rows)
+
+SELECT * FROM ltreetest WHERE t ~ '23.*{1}.1' order by t asc;
+ t
+---------
+ 23.28.1
+(1 row)
+
+SELECT * FROM ltreetest WHERE t ~ '23.*.1' order by t asc;
+ t
+---------------------------
+ 23.17.22.1.23.4.29.32.4.1
+ 23.28.1
+ 23.3.32.21.5.14.10.17.1
+(3 rows)
+
+SELECT * FROM ltreetest WHERE t ~ '23.*.2' order by t asc;
+ t
+------------------
+ 23.20.12.16.15.2
+(1 row)
+
+SELECT * FROM ltreetest WHERE t ? '{23.*.1,23.*.2}' order by t asc;
+ t
+---------------------------
+ 23.17.22.1.23.4.29.32.4.1
+ 23.20.12.16.15.2
+ 23.28.1
+ 23.3.32.21.5.14.10.17.1
+(4 rows)
+
+drop index tstidx;
+create index tstidx on ltreetest using gist (t gist_ltree_ops(siglen=0));
+ERROR: value 0 out of bounds for option "siglen"
+DETAIL: Valid values are between "4" and "2024".
+create index tstidx on ltreetest using gist (t gist_ltree_ops(siglen=2025));
+ERROR: value 2025 out of bounds for option "siglen"
+DETAIL: Valid values are between "4" and "2024".
+create index tstidx on ltreetest using gist (t gist_ltree_ops(siglen=2028));
+ERROR: value 2028 out of bounds for option "siglen"
+DETAIL: Valid values are between "4" and "2024".
+create index tstidx on ltreetest using gist (t gist_ltree_ops(siglen=2019));
+ERROR: siglen value must be a multiple of 4
+create index tstidx on ltreetest using gist (t gist_ltree_ops(siglen=2024));
+SELECT count(*) FROM ltreetest WHERE t < '12.3';
+ count
+-------
+ 123
+(1 row)
+
+SELECT count(*) FROM ltreetest WHERE t <= '12.3';
+ count
+-------
+ 124
+(1 row)
+
+SELECT count(*) FROM ltreetest WHERE t = '12.3';
+ count
+-------
+ 1
+(1 row)
+
+SELECT count(*) FROM ltreetest WHERE t >= '12.3';
+ count
+-------
+ 883
+(1 row)
+
+SELECT count(*) FROM ltreetest WHERE t > '12.3';
+ count
+-------
+ 882
+(1 row)
+
+SELECT count(*) FROM ltreetest WHERE t @> '1.1.1';
+ count
+-------
+ 4
+(1 row)
+
+SELECT count(*) FROM ltreetest WHERE t <@ '1.1.1';
+ count
+-------
+ 4
+(1 row)
+
+SELECT count(*) FROM ltreetest WHERE t @ '23 & 1';
+ count
+-------
+ 39
+(1 row)
+
+SELECT count(*) FROM ltreetest WHERE t ~ '1.1.1.*';
+ count
+-------
+ 4
+(1 row)
+
+SELECT count(*) FROM ltreetest WHERE t ~ '*.1';
+ count
+-------
+ 34
+(1 row)
+
+SELECT count(*) FROM ltreetest WHERE t ~ '23.*{1}.1';
+ count
+-------
+ 1
+(1 row)
+
+SELECT count(*) FROM ltreetest WHERE t ~ '23.*.1';
+ count
+-------
+ 3
+(1 row)
+
+SELECT count(*) FROM ltreetest WHERE t ~ '23.*.2';
+ count
+-------
+ 1
+(1 row)
+
+SELECT count(*) FROM ltreetest WHERE t ? '{23.*.1,23.*.2}';
+ count
+-------
+ 4
+(1 row)
+
+create table _ltreetest (t ltree[]);
+\copy _ltreetest FROM 'data/_ltree.data'
+SELECT count(*) FROM _ltreetest WHERE t @> '1.1.1' ;
+ count
+-------
+ 15
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t <@ '1.1.1' ;
+ count
+-------
+ 19
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t @ '23 & 1' ;
+ count
+-------
+ 147
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ~ '1.1.1.*' ;
+ count
+-------
+ 19
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ~ '*.1' ;
+ count
+-------
+ 109
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*{1}.1' ;
+ count
+-------
+ 5
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*.1' ;
+ count
+-------
+ 11
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*.2' ;
+ count
+-------
+ 5
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ? '{23.*.1,23.*.2}' ;
+ count
+-------
+ 15
+(1 row)
+
+create index _tstidx on _ltreetest using gist (t);
+set enable_seqscan=off;
+SELECT count(*) FROM _ltreetest WHERE t @> '1.1.1' ;
+ count
+-------
+ 15
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t <@ '1.1.1' ;
+ count
+-------
+ 19
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t @ '23 & 1' ;
+ count
+-------
+ 147
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ~ '1.1.1.*' ;
+ count
+-------
+ 19
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ~ '*.1' ;
+ count
+-------
+ 109
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*{1}.1' ;
+ count
+-------
+ 5
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*.1' ;
+ count
+-------
+ 11
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*.2' ;
+ count
+-------
+ 5
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ? '{23.*.1,23.*.2}' ;
+ count
+-------
+ 15
+(1 row)
+
+drop index _tstidx;
+create index _tstidx on _ltreetest using gist (t gist__ltree_ops(siglen=0));
+ERROR: value 0 out of bounds for option "siglen"
+DETAIL: Valid values are between "1" and "2024".
+create index _tstidx on _ltreetest using gist (t gist__ltree_ops(siglen=2025));
+ERROR: value 2025 out of bounds for option "siglen"
+DETAIL: Valid values are between "1" and "2024".
+create index _tstidx on _ltreetest using gist (t gist__ltree_ops(siglen=2024));
+SELECT count(*) FROM _ltreetest WHERE t @> '1.1.1' ;
+ count
+-------
+ 15
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t <@ '1.1.1' ;
+ count
+-------
+ 19
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t @ '23 & 1' ;
+ count
+-------
+ 147
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ~ '1.1.1.*' ;
+ count
+-------
+ 19
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ~ '*.1' ;
+ count
+-------
+ 109
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*{1}.1' ;
+ count
+-------
+ 5
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*.1' ;
+ count
+-------
+ 11
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*.2' ;
+ count
+-------
+ 5
+(1 row)
+
+SELECT count(*) FROM _ltreetest WHERE t ? '{23.*.1,23.*.2}' ;
+ count
+-------
+ 15
+(1 row)
+
+-- test non-error-throwing input
+SELECT str as "value", typ as "type",
+ pg_input_is_valid(str,typ) as ok,
+ errinfo.sql_error_code,
+ errinfo.message,
+ errinfo.detail,
+ errinfo.hint
+FROM (VALUES ('.2.3', 'ltree'),
+ ('1.2.', 'ltree'),
+ ('1.2.3','ltree'),
+ ('@.2.3','lquery'),
+ (' 2.3', 'lquery'),
+ ('1.2.3','lquery'),
+ ('$tree & aWdf@*','ltxtquery'),
+ ('!tree & aWdf@*','ltxtquery'))
+ AS a(str,typ),
+ LATERAL pg_input_error_info(a.str, a.typ) as errinfo;
+ value | type | ok | sql_error_code | message | detail | hint
+----------------+-----------+----+----------------+------------------------------------+--------------------------+------
+ .2.3 | ltree | f | 42601 | ltree syntax error at character 1 | |
+ 1.2. | ltree | f | 42601 | ltree syntax error | Unexpected end of input. |
+ 1.2.3 | ltree | t | | | |
+ @.2.3 | lquery | f | 42601 | lquery syntax error at character 1 | |
+ 2.3 | lquery | f | 42601 | lquery syntax error at character 1 | |
+ 1.2.3 | lquery | t | | | |
+ $tree & aWdf@* | ltxtquery | f | 42601 | operand syntax error | |
+ !tree & aWdf@* | ltxtquery | t | | | |
+(8 rows)
+
diff --git a/contrib/ltree/lquery_op.c b/contrib/ltree/lquery_op.c
new file mode 100644
index 0000000..a6466f5
--- /dev/null
+++ b/contrib/ltree/lquery_op.c
@@ -0,0 +1,281 @@
+/*
+ * op function for ltree and lquery
+ * Teodor Sigaev <teodor@stack.net>
+ * contrib/ltree/lquery_op.c
+ */
+#include "postgres.h"
+
+#include <ctype.h>
+
+#include "catalog/pg_collation.h"
+#include "ltree.h"
+#include "miscadmin.h"
+#include "utils/array.h"
+#include "utils/formatting.h"
+
+PG_FUNCTION_INFO_V1(ltq_regex);
+PG_FUNCTION_INFO_V1(ltq_rregex);
+
+PG_FUNCTION_INFO_V1(lt_q_regex);
+PG_FUNCTION_INFO_V1(lt_q_rregex);
+
+#define NEXTVAL(x) ( (lquery*)( (char*)(x) + INTALIGN( VARSIZE(x) ) ) )
+
+static char *
+getlexeme(char *start, char *end, int *len)
+{
+ char *ptr;
+
+ while (start < end && t_iseq(start, '_'))
+ start += pg_mblen(start);
+
+ ptr = start;
+ if (ptr >= end)
+ return NULL;
+
+ while (ptr < end && !t_iseq(ptr, '_'))
+ ptr += pg_mblen(ptr);
+
+ *len = ptr - start;
+ return start;
+}
+
+bool
+compare_subnode(ltree_level *t, char *qn, int len, int (*cmpptr) (const char *, const char *, size_t), bool anyend)
+{
+ char *endt = t->name + t->len;
+ char *endq = qn + len;
+ char *tn;
+ int lent,
+ lenq;
+ bool isok;
+
+ while ((qn = getlexeme(qn, endq, &lenq)) != NULL)
+ {
+ tn = t->name;
+ isok = false;
+ while ((tn = getlexeme(tn, endt, &lent)) != NULL)
+ {
+ if ((lent == lenq || (lent > lenq && anyend)) &&
+ (*cmpptr) (qn, tn, lenq) == 0)
+ {
+
+ isok = true;
+ break;
+ }
+ tn += lent;
+ }
+
+ if (!isok)
+ return false;
+ qn += lenq;
+ }
+
+ return true;
+}
+
+int
+ltree_strncasecmp(const char *a, const char *b, size_t s)
+{
+ char *al = str_tolower(a, s, DEFAULT_COLLATION_OID);
+ char *bl = str_tolower(b, s, DEFAULT_COLLATION_OID);
+ int res;
+
+ res = strncmp(al, bl, s);
+
+ pfree(al);
+ pfree(bl);
+
+ return res;
+}
+
+/*
+ * See if an lquery_level matches an ltree_level
+ *
+ * This accounts for all flags including LQL_NOT, but does not
+ * consider repetition counts.
+ */
+static bool
+checkLevel(lquery_level *curq, ltree_level *curt)
+{
+ lquery_variant *curvar = LQL_FIRST(curq);
+ bool success;
+
+ success = (curq->flag & LQL_NOT) ? false : true;
+
+ /* numvar == 0 means '*' which matches anything */
+ if (curq->numvar == 0)
+ return success;
+
+ for (int i = 0; i < curq->numvar; i++)
+ {
+ int (*cmpptr) (const char *, const char *, size_t);
+
+ cmpptr = (curvar->flag & LVAR_INCASE) ? ltree_strncasecmp : strncmp;
+
+ if (curvar->flag & LVAR_SUBLEXEME)
+ {
+ if (compare_subnode(curt, curvar->name, curvar->len, cmpptr,
+ (curvar->flag & LVAR_ANYEND)))
+ return success;
+ }
+ else if ((curvar->len == curt->len ||
+ (curt->len > curvar->len && (curvar->flag & LVAR_ANYEND))) &&
+ (*cmpptr) (curvar->name, curt->name, curvar->len) == 0)
+ return success;
+
+ curvar = LVAR_NEXT(curvar);
+ }
+ return !success;
+}
+
+/*
+ * Try to match an lquery (of qlen items) to an ltree (of tlen items)
+ */
+static bool
+checkCond(lquery_level *curq, int qlen,
+ ltree_level *curt, int tlen)
+{
+ /* Since this function recurses, it could be driven to stack overflow */
+ check_stack_depth();
+
+ /* Pathological patterns could take awhile, too */
+ CHECK_FOR_INTERRUPTS();
+
+ /* Loop while we have query items to consider */
+ while (qlen > 0)
+ {
+ int low,
+ high;
+ lquery_level *nextq;
+
+ /*
+ * Get min and max repetition counts for this query item, dealing with
+ * the backwards-compatibility hack that the low/high fields aren't
+ * meaningful for non-'*' items unless LQL_COUNT is set.
+ */
+ if ((curq->flag & LQL_COUNT) || curq->numvar == 0)
+ low = curq->low, high = curq->high;
+ else
+ low = high = 1;
+
+ /*
+ * We may limit "high" to the remaining text length; this avoids
+ * separate tests below.
+ */
+ if (high > tlen)
+ high = tlen;
+
+ /* Fail if a match of required number of items is impossible */
+ if (high < low)
+ return false;
+
+ /*
+ * Recursively check the rest of the pattern against each possible
+ * start point following some of this item's match(es).
+ */
+ nextq = LQL_NEXT(curq);
+ qlen--;
+
+ for (int matchcnt = 0; matchcnt < high; matchcnt++)
+ {
+ /*
+ * If we've consumed an acceptable number of matches of this item,
+ * and the rest of the pattern matches beginning here, we're good.
+ */
+ if (matchcnt >= low && checkCond(nextq, qlen, curt, tlen))
+ return true;
+
+ /*
+ * Otherwise, try to match one more text item to this query item.
+ */
+ if (!checkLevel(curq, curt))
+ return false;
+
+ curt = LEVEL_NEXT(curt);
+ tlen--;
+ }
+
+ /*
+ * Once we've consumed "high" matches, we can succeed only if the rest
+ * of the pattern matches beginning here. Loop around (if you prefer,
+ * think of this as tail recursion).
+ */
+ curq = nextq;
+ }
+
+ /*
+ * Once we're out of query items, we match only if there's no remaining
+ * text either.
+ */
+ return (tlen == 0);
+}
+
+Datum
+ltq_regex(PG_FUNCTION_ARGS)
+{
+ ltree *tree = PG_GETARG_LTREE_P(0);
+ lquery *query = PG_GETARG_LQUERY_P(1);
+ bool res;
+
+ res = checkCond(LQUERY_FIRST(query), query->numlevel,
+ LTREE_FIRST(tree), tree->numlevel);
+
+ PG_FREE_IF_COPY(tree, 0);
+ PG_FREE_IF_COPY(query, 1);
+ PG_RETURN_BOOL(res);
+}
+
+Datum
+ltq_rregex(PG_FUNCTION_ARGS)
+{
+ PG_RETURN_DATUM(DirectFunctionCall2(ltq_regex,
+ PG_GETARG_DATUM(1),
+ PG_GETARG_DATUM(0)
+ ));
+}
+
+Datum
+lt_q_regex(PG_FUNCTION_ARGS)
+{
+ ltree *tree = PG_GETARG_LTREE_P(0);
+ ArrayType *_query = PG_GETARG_ARRAYTYPE_P(1);
+ lquery *query = (lquery *) ARR_DATA_PTR(_query);
+ bool res = false;
+ int num = ArrayGetNItems(ARR_NDIM(_query), ARR_DIMS(_query));
+
+ if (ARR_NDIM(_query) > 1)
+ ereport(ERROR,
+ (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
+ errmsg("array must be one-dimensional")));
+ if (array_contains_nulls(_query))
+ ereport(ERROR,
+ (errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
+ errmsg("array must not contain nulls")));
+
+ while (num > 0)
+ {
+ if (DatumGetBool(DirectFunctionCall2(ltq_regex,
+ PointerGetDatum(tree), PointerGetDatum(query))))
+ {
+
+ res = true;
+ break;
+ }
+ num--;
+ query = NEXTVAL(query);
+ }
+
+ PG_FREE_IF_COPY(tree, 0);
+ PG_FREE_IF_COPY(_query, 1);
+ PG_RETURN_BOOL(res);
+}
+
+Datum
+lt_q_rregex(PG_FUNCTION_ARGS)
+{
+ PG_RETURN_DATUM(DirectFunctionCall2(lt_q_regex,
+ PG_GETARG_DATUM(1),
+ PG_GETARG_DATUM(0)
+ ));
+}
diff --git a/contrib/ltree/ltree--1.0--1.1.sql b/contrib/ltree/ltree--1.0--1.1.sql
new file mode 100644
index 0000000..2ce6f5a
--- /dev/null
+++ b/contrib/ltree/ltree--1.0--1.1.sql
@@ -0,0 +1,115 @@
+/* contrib/ltree/ltree--1.0--1.1.sql */
+
+-- complain if script is sourced in psql, rather than via ALTER EXTENSION
+\echo Use "ALTER EXTENSION ltree UPDATE TO '1.1'" to load this file. \quit
+
+-- Update procedure signatures the hard way.
+-- We use to_regprocedure() so that query doesn't fail if run against 9.6beta1 definitions,
+-- wherein the signatures have been updated already. In that case to_regprocedure() will
+-- return NULL and no updates will happen.
+DO LANGUAGE plpgsql
+$$
+DECLARE
+ my_schema pg_catalog.text := pg_catalog.quote_ident(pg_catalog.current_schema());
+ old_path pg_catalog.text := pg_catalog.current_setting('search_path');
+BEGIN
+-- for safety, transiently set search_path to just pg_catalog+pg_temp
+PERFORM pg_catalog.set_config('search_path', 'pg_catalog, pg_temp', true);
+
+UPDATE pg_catalog.pg_proc SET
+ proargtypes = pg_catalog.array_to_string(newtypes::pg_catalog.oid[], ' ')::pg_catalog.oidvector,
+ pronargs = pg_catalog.array_length(newtypes, 1)
+FROM (VALUES
+(NULL::pg_catalog.text, NULL::pg_catalog.text[]), -- establish column types
+('ltree_consistent(internal,internal,int2,oid,internal)', '{internal,SCH.ltree,int2,oid,internal}'),
+('ltree_same(internal,internal,internal)', '{SCH.ltree_gist,SCH.ltree_gist,internal}'),
+('_ltree_consistent(internal,internal,int2,oid,internal)', '{internal,SCH._ltree,int2,oid,internal}'),
+('_ltree_same(internal,internal,internal)', '{SCH.ltree_gist,SCH.ltree_gist,internal}')
+) AS update_data (oldproc, newtypestext),
+LATERAL (
+ SELECT array_agg(replace(typ, 'SCH', my_schema)::regtype) as newtypes FROM unnest(newtypestext) typ
+) ls
+WHERE oid = to_regprocedure(my_schema || '.' || replace(oldproc, 'SCH', my_schema));
+
+UPDATE pg_catalog.pg_proc SET
+ prorettype = (my_schema || '.ltree_gist')::pg_catalog.regtype
+WHERE oid = pg_catalog.to_regprocedure(my_schema || '.ltree_union(internal,internal)');
+
+UPDATE pg_catalog.pg_proc SET
+ prorettype = (my_schema || '.ltree_gist')::pg_catalog.regtype
+WHERE oid = pg_catalog.to_regprocedure(my_schema || '._ltree_union(internal,internal)');
+
+PERFORM pg_catalog.set_config('search_path', old_path, true);
+END
+$$;
+
+ALTER FUNCTION ltree_in(cstring) PARALLEL SAFE;
+ALTER FUNCTION ltree_out(ltree) PARALLEL SAFE;
+ALTER FUNCTION ltree_cmp(ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION ltree_lt(ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION ltree_le(ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION ltree_eq(ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION ltree_ge(ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION ltree_gt(ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION ltree_ne(ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION subltree(ltree, int4, int4) PARALLEL SAFE;
+ALTER FUNCTION subpath(ltree, int4, int4) PARALLEL SAFE;
+ALTER FUNCTION subpath(ltree, int4) PARALLEL SAFE;
+ALTER FUNCTION index(ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION index(ltree, ltree, int4) PARALLEL SAFE;
+ALTER FUNCTION nlevel(ltree) PARALLEL SAFE;
+ALTER FUNCTION ltree2text(ltree) PARALLEL SAFE;
+ALTER FUNCTION text2ltree(text) PARALLEL SAFE;
+ALTER FUNCTION lca(_ltree) PARALLEL SAFE;
+ALTER FUNCTION lca(ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION lca(ltree, ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION lca(ltree, ltree, ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION lca(ltree, ltree, ltree, ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION lca(ltree, ltree, ltree, ltree, ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION lca(ltree, ltree, ltree, ltree, ltree, ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION lca(ltree, ltree, ltree, ltree, ltree, ltree, ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION ltree_isparent(ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION ltree_risparent(ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION ltree_addltree(ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION ltree_addtext(ltree, text) PARALLEL SAFE;
+ALTER FUNCTION ltree_textadd(text, ltree) PARALLEL SAFE;
+ALTER FUNCTION ltreeparentsel(internal, oid, internal, integer) PARALLEL SAFE;
+ALTER FUNCTION lquery_in(cstring) PARALLEL SAFE;
+ALTER FUNCTION lquery_out(lquery) PARALLEL SAFE;
+ALTER FUNCTION ltq_regex(ltree, lquery) PARALLEL SAFE;
+ALTER FUNCTION ltq_rregex(lquery, ltree) PARALLEL SAFE;
+ALTER FUNCTION lt_q_regex(ltree, _lquery) PARALLEL SAFE;
+ALTER FUNCTION lt_q_rregex(_lquery, ltree) PARALLEL SAFE;
+ALTER FUNCTION ltxtq_in(cstring) PARALLEL SAFE;
+ALTER FUNCTION ltxtq_out(ltxtquery) PARALLEL SAFE;
+ALTER FUNCTION ltxtq_exec(ltree, ltxtquery) PARALLEL SAFE;
+ALTER FUNCTION ltxtq_rexec(ltxtquery, ltree) PARALLEL SAFE;
+ALTER FUNCTION ltree_gist_in(cstring) PARALLEL SAFE;
+ALTER FUNCTION ltree_gist_out(ltree_gist) PARALLEL SAFE;
+ALTER FUNCTION ltree_consistent(internal, ltree, int2, oid, internal) PARALLEL SAFE;
+ALTER FUNCTION ltree_compress(internal) PARALLEL SAFE;
+ALTER FUNCTION ltree_decompress(internal) PARALLEL SAFE;
+ALTER FUNCTION ltree_penalty(internal, internal, internal) PARALLEL SAFE;
+ALTER FUNCTION ltree_picksplit(internal, internal) PARALLEL SAFE;
+ALTER FUNCTION ltree_union(internal, internal) PARALLEL SAFE;
+ALTER FUNCTION ltree_same(ltree_gist, ltree_gist, internal) PARALLEL SAFE;
+ALTER FUNCTION _ltree_isparent(_ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION _ltree_r_isparent(ltree, _ltree) PARALLEL SAFE;
+ALTER FUNCTION _ltree_risparent(_ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION _ltree_r_risparent(ltree, _ltree) PARALLEL SAFE;
+ALTER FUNCTION _ltq_regex(_ltree, lquery) PARALLEL SAFE;
+ALTER FUNCTION _ltq_rregex(lquery, _ltree) PARALLEL SAFE;
+ALTER FUNCTION _lt_q_regex(_ltree, _lquery) PARALLEL SAFE;
+ALTER FUNCTION _lt_q_rregex(_lquery, _ltree) PARALLEL SAFE;
+ALTER FUNCTION _ltxtq_exec(_ltree, ltxtquery) PARALLEL SAFE;
+ALTER FUNCTION _ltxtq_rexec(ltxtquery, _ltree) PARALLEL SAFE;
+ALTER FUNCTION _ltree_extract_isparent(_ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION _ltree_extract_risparent(_ltree, ltree) PARALLEL SAFE;
+ALTER FUNCTION _ltq_extract_regex(_ltree, lquery) PARALLEL SAFE;
+ALTER FUNCTION _ltxtq_extract_exec(_ltree, ltxtquery) PARALLEL SAFE;
+ALTER FUNCTION _ltree_consistent(internal, _ltree, int2, oid, internal) PARALLEL SAFE;
+ALTER FUNCTION _ltree_compress(internal) PARALLEL SAFE;
+ALTER FUNCTION _ltree_penalty(internal, internal, internal) PARALLEL SAFE;
+ALTER FUNCTION _ltree_picksplit(internal, internal) PARALLEL SAFE;
+ALTER FUNCTION _ltree_union(internal, internal) PARALLEL SAFE;
+ALTER FUNCTION _ltree_same(ltree_gist, ltree_gist, internal) PARALLEL SAFE;
diff --git a/contrib/ltree/ltree--1.1--1.2.sql b/contrib/ltree/ltree--1.1--1.2.sql
new file mode 100644
index 0000000..e38e76b
--- /dev/null
+++ b/contrib/ltree/ltree--1.1--1.2.sql
@@ -0,0 +1,139 @@
+/* contrib/ltree/ltree--1.1--1.2.sql */
+
+-- complain if script is sourced in psql, rather than via ALTER EXTENSION
+\echo Use "ALTER EXTENSION ltree UPDATE TO '1.2'" to load this file. \quit
+
+CREATE FUNCTION ltree_recv(internal)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltree_send(ltree)
+RETURNS bytea
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+ALTER TYPE ltree SET ( RECEIVE = ltree_recv, SEND = ltree_send );
+
+CREATE FUNCTION lquery_recv(internal)
+RETURNS lquery
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION lquery_send(lquery)
+RETURNS bytea
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+ALTER TYPE lquery SET ( RECEIVE = lquery_recv, SEND = lquery_send );
+
+CREATE FUNCTION ltxtq_recv(internal)
+RETURNS ltxtquery
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltxtq_send(ltxtquery)
+RETURNS bytea
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+ALTER TYPE ltxtquery SET ( RECEIVE = ltxtq_recv, SEND = ltxtq_send );
+
+
+CREATE FUNCTION ltree_gist_options(internal)
+RETURNS void
+AS 'MODULE_PATHNAME', 'ltree_gist_options'
+LANGUAGE C IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION _ltree_gist_options(internal)
+RETURNS void
+AS 'MODULE_PATHNAME', '_ltree_gist_options'
+LANGUAGE C IMMUTABLE PARALLEL SAFE;
+
+ALTER OPERATOR FAMILY gist_ltree_ops USING gist
+ADD FUNCTION 10 (ltree) ltree_gist_options (internal);
+
+ALTER OPERATOR FAMILY gist__ltree_ops USING gist
+ADD FUNCTION 10 (_ltree) _ltree_gist_options (internal);
+
+ALTER OPERATOR < (ltree, ltree)
+ SET (RESTRICT = scalarltsel, JOIN = scalarltjoinsel);
+ALTER OPERATOR <= (ltree, ltree)
+ SET (RESTRICT = scalarlesel, JOIN = scalarlejoinsel);
+ALTER OPERATOR >= (ltree, ltree)
+ SET (RESTRICT = scalargesel, JOIN = scalargejoinsel);
+ALTER OPERATOR > (ltree, ltree)
+ SET (RESTRICT = scalargtsel, JOIN = scalargtjoinsel);
+
+ALTER OPERATOR @> (ltree, ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^@> (ltree, ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR <@ (ltree, ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^<@ (ltree, ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ~ (ltree, lquery)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ~ (lquery, ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^~ (ltree, lquery)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^~ (lquery, ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ? (ltree, _lquery)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ? (_lquery, ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^? (ltree, _lquery)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^? (_lquery, ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR @ (ltree, ltxtquery)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR @ (ltxtquery, ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^@ (ltree, ltxtquery)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^@ (ltxtquery, ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR @> (_ltree, ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR <@ (ltree, _ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR <@ (_ltree, ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR @> (ltree, _ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ~ (_ltree, lquery)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ~ (lquery, _ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ? (_ltree, _lquery)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ? (_lquery, _ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR @ (_ltree, ltxtquery)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR @ (ltxtquery, _ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^@> (_ltree, ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^<@ (ltree, _ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^<@ (_ltree, ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^@> (ltree, _ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^~ (_ltree, lquery)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^~ (lquery, _ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^? (_ltree, _lquery)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^? (_lquery, _ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^@ (_ltree, ltxtquery)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
+ALTER OPERATOR ^@ (ltxtquery, _ltree)
+ SET (RESTRICT = matchingsel, JOIN = matchingjoinsel);
diff --git a/contrib/ltree/ltree--1.1.sql b/contrib/ltree/ltree--1.1.sql
new file mode 100644
index 0000000..d46f5fc
--- /dev/null
+++ b/contrib/ltree/ltree--1.1.sql
@@ -0,0 +1,872 @@
+/* contrib/ltree/ltree--1.1.sql */
+
+-- complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "CREATE EXTENSION ltree" to load this file. \quit
+
+CREATE FUNCTION ltree_in(cstring)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltree_out(ltree)
+RETURNS cstring
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE TYPE ltree (
+ INTERNALLENGTH = -1,
+ INPUT = ltree_in,
+ OUTPUT = ltree_out,
+ STORAGE = extended
+);
+
+
+--Compare function for ltree
+CREATE FUNCTION ltree_cmp(ltree,ltree)
+RETURNS int4
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltree_lt(ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltree_le(ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltree_eq(ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltree_ge(ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltree_gt(ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltree_ne(ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+
+CREATE OPERATOR < (
+ LEFTARG = ltree,
+ RIGHTARG = ltree,
+ PROCEDURE = ltree_lt,
+ COMMUTATOR = '>',
+ NEGATOR = '>=',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR <= (
+ LEFTARG = ltree,
+ RIGHTARG = ltree,
+ PROCEDURE = ltree_le,
+ COMMUTATOR = '>=',
+ NEGATOR = '>',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR >= (
+ LEFTARG = ltree,
+ RIGHTARG = ltree,
+ PROCEDURE = ltree_ge,
+ COMMUTATOR = '<=',
+ NEGATOR = '<',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR > (
+ LEFTARG = ltree,
+ RIGHTARG = ltree,
+ PROCEDURE = ltree_gt,
+ COMMUTATOR = '<',
+ NEGATOR = '<=',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR = (
+ LEFTARG = ltree,
+ RIGHTARG = ltree,
+ PROCEDURE = ltree_eq,
+ COMMUTATOR = '=',
+ NEGATOR = '<>',
+ RESTRICT = eqsel,
+ JOIN = eqjoinsel,
+ SORT1 = '<',
+ SORT2 = '<'
+);
+
+CREATE OPERATOR <> (
+ LEFTARG = ltree,
+ RIGHTARG = ltree,
+ PROCEDURE = ltree_ne,
+ COMMUTATOR = '<>',
+ NEGATOR = '=',
+ RESTRICT = neqsel,
+ JOIN = neqjoinsel
+);
+
+--util functions
+
+CREATE FUNCTION subltree(ltree,int4,int4)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION subpath(ltree,int4,int4)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION subpath(ltree,int4)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION index(ltree,ltree)
+RETURNS int4
+AS 'MODULE_PATHNAME', 'ltree_index'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION index(ltree,ltree,int4)
+RETURNS int4
+AS 'MODULE_PATHNAME', 'ltree_index'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION nlevel(ltree)
+RETURNS int4
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltree2text(ltree)
+RETURNS text
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION text2ltree(text)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION lca(_ltree)
+RETURNS ltree
+AS 'MODULE_PATHNAME','_lca'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION lca(ltree,ltree)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION lca(ltree,ltree,ltree)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION lca(ltree,ltree,ltree,ltree)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION lca(ltree,ltree,ltree,ltree,ltree)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION lca(ltree,ltree,ltree,ltree,ltree,ltree)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION lca(ltree,ltree,ltree,ltree,ltree,ltree,ltree)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION lca(ltree,ltree,ltree,ltree,ltree,ltree,ltree,ltree)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltree_isparent(ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltree_risparent(ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltree_addltree(ltree,ltree)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltree_addtext(ltree,text)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltree_textadd(text,ltree)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltreeparentsel(internal, oid, internal, integer)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE OPERATOR @> (
+ LEFTARG = ltree,
+ RIGHTARG = ltree,
+ PROCEDURE = ltree_isparent,
+ COMMUTATOR = '<@',
+ RESTRICT = ltreeparentsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^@> (
+ LEFTARG = ltree,
+ RIGHTARG = ltree,
+ PROCEDURE = ltree_isparent,
+ COMMUTATOR = '^<@',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR <@ (
+ LEFTARG = ltree,
+ RIGHTARG = ltree,
+ PROCEDURE = ltree_risparent,
+ COMMUTATOR = '@>',
+ RESTRICT = ltreeparentsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^<@ (
+ LEFTARG = ltree,
+ RIGHTARG = ltree,
+ PROCEDURE = ltree_risparent,
+ COMMUTATOR = '^@>',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR || (
+ LEFTARG = ltree,
+ RIGHTARG = ltree,
+ PROCEDURE = ltree_addltree
+);
+
+CREATE OPERATOR || (
+ LEFTARG = ltree,
+ RIGHTARG = text,
+ PROCEDURE = ltree_addtext
+);
+
+CREATE OPERATOR || (
+ LEFTARG = text,
+ RIGHTARG = ltree,
+ PROCEDURE = ltree_textadd
+);
+
+
+-- B-tree support
+
+CREATE OPERATOR CLASS ltree_ops
+ DEFAULT FOR TYPE ltree USING btree AS
+ OPERATOR 1 < ,
+ OPERATOR 2 <= ,
+ OPERATOR 3 = ,
+ OPERATOR 4 >= ,
+ OPERATOR 5 > ,
+ FUNCTION 1 ltree_cmp(ltree, ltree);
+
+
+--lquery type
+CREATE FUNCTION lquery_in(cstring)
+RETURNS lquery
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION lquery_out(lquery)
+RETURNS cstring
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE TYPE lquery (
+ INTERNALLENGTH = -1,
+ INPUT = lquery_in,
+ OUTPUT = lquery_out,
+ STORAGE = extended
+);
+
+CREATE FUNCTION ltq_regex(ltree,lquery)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltq_rregex(lquery,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE OPERATOR ~ (
+ LEFTARG = ltree,
+ RIGHTARG = lquery,
+ PROCEDURE = ltq_regex,
+ COMMUTATOR = '~',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ~ (
+ LEFTARG = lquery,
+ RIGHTARG = ltree,
+ PROCEDURE = ltq_rregex,
+ COMMUTATOR = '~',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+--not-indexed
+CREATE OPERATOR ^~ (
+ LEFTARG = ltree,
+ RIGHTARG = lquery,
+ PROCEDURE = ltq_regex,
+ COMMUTATOR = '^~',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^~ (
+ LEFTARG = lquery,
+ RIGHTARG = ltree,
+ PROCEDURE = ltq_rregex,
+ COMMUTATOR = '^~',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE FUNCTION lt_q_regex(ltree,_lquery)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION lt_q_rregex(_lquery,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE OPERATOR ? (
+ LEFTARG = ltree,
+ RIGHTARG = _lquery,
+ PROCEDURE = lt_q_regex,
+ COMMUTATOR = '?',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ? (
+ LEFTARG = _lquery,
+ RIGHTARG = ltree,
+ PROCEDURE = lt_q_rregex,
+ COMMUTATOR = '?',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+--not-indexed
+CREATE OPERATOR ^? (
+ LEFTARG = ltree,
+ RIGHTARG = _lquery,
+ PROCEDURE = lt_q_regex,
+ COMMUTATOR = '^?',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^? (
+ LEFTARG = _lquery,
+ RIGHTARG = ltree,
+ PROCEDURE = lt_q_rregex,
+ COMMUTATOR = '^?',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE FUNCTION ltxtq_in(cstring)
+RETURNS ltxtquery
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltxtq_out(ltxtquery)
+RETURNS cstring
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE TYPE ltxtquery (
+ INTERNALLENGTH = -1,
+ INPUT = ltxtq_in,
+ OUTPUT = ltxtq_out,
+ STORAGE = extended
+);
+
+-- operations WITH ltxtquery
+
+CREATE FUNCTION ltxtq_exec(ltree, ltxtquery)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltxtq_rexec(ltxtquery, ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE OPERATOR @ (
+ LEFTARG = ltree,
+ RIGHTARG = ltxtquery,
+ PROCEDURE = ltxtq_exec,
+ COMMUTATOR = '@',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR @ (
+ LEFTARG = ltxtquery,
+ RIGHTARG = ltree,
+ PROCEDURE = ltxtq_rexec,
+ COMMUTATOR = '@',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+--not-indexed
+CREATE OPERATOR ^@ (
+ LEFTARG = ltree,
+ RIGHTARG = ltxtquery,
+ PROCEDURE = ltxtq_exec,
+ COMMUTATOR = '^@',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^@ (
+ LEFTARG = ltxtquery,
+ RIGHTARG = ltree,
+ PROCEDURE = ltxtq_rexec,
+ COMMUTATOR = '^@',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+--GiST support for ltree
+CREATE FUNCTION ltree_gist_in(cstring)
+RETURNS ltree_gist
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION ltree_gist_out(ltree_gist)
+RETURNS cstring
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE TYPE ltree_gist (
+ internallength = -1,
+ input = ltree_gist_in,
+ output = ltree_gist_out,
+ storage = plain
+);
+
+
+CREATE FUNCTION ltree_consistent(internal,ltree,int2,oid,internal)
+RETURNS bool as 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+
+CREATE FUNCTION ltree_compress(internal)
+RETURNS internal as 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+
+CREATE FUNCTION ltree_decompress(internal)
+RETURNS internal as 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+
+CREATE FUNCTION ltree_penalty(internal,internal,internal)
+RETURNS internal as 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+
+CREATE FUNCTION ltree_picksplit(internal, internal)
+RETURNS internal as 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+
+CREATE FUNCTION ltree_union(internal, internal)
+RETURNS ltree_gist as 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+
+CREATE FUNCTION ltree_same(ltree_gist, ltree_gist, internal)
+RETURNS internal as 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+
+CREATE OPERATOR CLASS gist_ltree_ops
+ DEFAULT FOR TYPE ltree USING gist AS
+ OPERATOR 1 < ,
+ OPERATOR 2 <= ,
+ OPERATOR 3 = ,
+ OPERATOR 4 >= ,
+ OPERATOR 5 > ,
+ OPERATOR 10 @> ,
+ OPERATOR 11 <@ ,
+ OPERATOR 12 ~ (ltree, lquery) ,
+ OPERATOR 13 ~ (lquery, ltree) ,
+ OPERATOR 14 @ (ltree, ltxtquery) ,
+ OPERATOR 15 @ (ltxtquery, ltree) ,
+ OPERATOR 16 ? (ltree, _lquery) ,
+ OPERATOR 17 ? (_lquery, ltree) ,
+ FUNCTION 1 ltree_consistent (internal, ltree, int2, oid, internal),
+ FUNCTION 2 ltree_union (internal, internal),
+ FUNCTION 3 ltree_compress (internal),
+ FUNCTION 4 ltree_decompress (internal),
+ FUNCTION 5 ltree_penalty (internal, internal, internal),
+ FUNCTION 6 ltree_picksplit (internal, internal),
+ FUNCTION 7 ltree_same (ltree_gist, ltree_gist, internal),
+ STORAGE ltree_gist;
+
+
+-- arrays of ltree
+
+CREATE FUNCTION _ltree_isparent(_ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION _ltree_r_isparent(ltree,_ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION _ltree_risparent(_ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION _ltree_r_risparent(ltree,_ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION _ltq_regex(_ltree,lquery)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION _ltq_rregex(lquery,_ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION _lt_q_regex(_ltree,_lquery)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION _lt_q_rregex(_lquery,_ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION _ltxtq_exec(_ltree, ltxtquery)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE FUNCTION _ltxtq_rexec(ltxtquery, _ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE OPERATOR @> (
+ LEFTARG = _ltree,
+ RIGHTARG = ltree,
+ PROCEDURE = _ltree_isparent,
+ COMMUTATOR = '<@',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR <@ (
+ LEFTARG = ltree,
+ RIGHTARG = _ltree,
+ PROCEDURE = _ltree_r_isparent,
+ COMMUTATOR = '@>',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR <@ (
+ LEFTARG = _ltree,
+ RIGHTARG = ltree,
+ PROCEDURE = _ltree_risparent,
+ COMMUTATOR = '@>',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR @> (
+ LEFTARG = ltree,
+ RIGHTARG = _ltree,
+ PROCEDURE = _ltree_r_risparent,
+ COMMUTATOR = '<@',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ~ (
+ LEFTARG = _ltree,
+ RIGHTARG = lquery,
+ PROCEDURE = _ltq_regex,
+ COMMUTATOR = '~',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ~ (
+ LEFTARG = lquery,
+ RIGHTARG = _ltree,
+ PROCEDURE = _ltq_rregex,
+ COMMUTATOR = '~',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ? (
+ LEFTARG = _ltree,
+ RIGHTARG = _lquery,
+ PROCEDURE = _lt_q_regex,
+ COMMUTATOR = '?',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ? (
+ LEFTARG = _lquery,
+ RIGHTARG = _ltree,
+ PROCEDURE = _lt_q_rregex,
+ COMMUTATOR = '?',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR @ (
+ LEFTARG = _ltree,
+ RIGHTARG = ltxtquery,
+ PROCEDURE = _ltxtq_exec,
+ COMMUTATOR = '@',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR @ (
+ LEFTARG = ltxtquery,
+ RIGHTARG = _ltree,
+ PROCEDURE = _ltxtq_rexec,
+ COMMUTATOR = '@',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+
+--not indexed
+CREATE OPERATOR ^@> (
+ LEFTARG = _ltree,
+ RIGHTARG = ltree,
+ PROCEDURE = _ltree_isparent,
+ COMMUTATOR = '^<@',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^<@ (
+ LEFTARG = ltree,
+ RIGHTARG = _ltree,
+ PROCEDURE = _ltree_r_isparent,
+ COMMUTATOR = '^@>',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^<@ (
+ LEFTARG = _ltree,
+ RIGHTARG = ltree,
+ PROCEDURE = _ltree_risparent,
+ COMMUTATOR = '^@>',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^@> (
+ LEFTARG = ltree,
+ RIGHTARG = _ltree,
+ PROCEDURE = _ltree_r_risparent,
+ COMMUTATOR = '^<@',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^~ (
+ LEFTARG = _ltree,
+ RIGHTARG = lquery,
+ PROCEDURE = _ltq_regex,
+ COMMUTATOR = '^~',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^~ (
+ LEFTARG = lquery,
+ RIGHTARG = _ltree,
+ PROCEDURE = _ltq_rregex,
+ COMMUTATOR = '^~',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^? (
+ LEFTARG = _ltree,
+ RIGHTARG = _lquery,
+ PROCEDURE = _lt_q_regex,
+ COMMUTATOR = '^?',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^? (
+ LEFTARG = _lquery,
+ RIGHTARG = _ltree,
+ PROCEDURE = _lt_q_rregex,
+ COMMUTATOR = '^?',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^@ (
+ LEFTARG = _ltree,
+ RIGHTARG = ltxtquery,
+ PROCEDURE = _ltxtq_exec,
+ COMMUTATOR = '^@',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^@ (
+ LEFTARG = ltxtquery,
+ RIGHTARG = _ltree,
+ PROCEDURE = _ltxtq_rexec,
+ COMMUTATOR = '^@',
+ RESTRICT = contsel,
+ JOIN = contjoinsel
+);
+
+--extractors
+CREATE FUNCTION _ltree_extract_isparent(_ltree,ltree)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE OPERATOR ?@> (
+ LEFTARG = _ltree,
+ RIGHTARG = ltree,
+ PROCEDURE = _ltree_extract_isparent
+);
+
+CREATE FUNCTION _ltree_extract_risparent(_ltree,ltree)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE OPERATOR ?<@ (
+ LEFTARG = _ltree,
+ RIGHTARG = ltree,
+ PROCEDURE = _ltree_extract_risparent
+);
+
+CREATE FUNCTION _ltq_extract_regex(_ltree,lquery)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE OPERATOR ?~ (
+ LEFTARG = _ltree,
+ RIGHTARG = lquery,
+ PROCEDURE = _ltq_extract_regex
+);
+
+CREATE FUNCTION _ltxtq_extract_exec(_ltree,ltxtquery)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
+
+CREATE OPERATOR ?@ (
+ LEFTARG = _ltree,
+ RIGHTARG = ltxtquery,
+ PROCEDURE = _ltxtq_extract_exec
+);
+
+--GiST support for ltree[]
+CREATE FUNCTION _ltree_consistent(internal,_ltree,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+
+CREATE FUNCTION _ltree_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+
+CREATE FUNCTION _ltree_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+
+CREATE FUNCTION _ltree_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+
+CREATE FUNCTION _ltree_union(internal, internal)
+RETURNS ltree_gist
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+
+CREATE FUNCTION _ltree_same(ltree_gist, ltree_gist, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+
+CREATE OPERATOR CLASS gist__ltree_ops
+ DEFAULT FOR TYPE _ltree USING gist AS
+ OPERATOR 10 <@ (_ltree, ltree),
+ OPERATOR 11 @> (ltree, _ltree),
+ OPERATOR 12 ~ (_ltree, lquery),
+ OPERATOR 13 ~ (lquery, _ltree),
+ OPERATOR 14 @ (_ltree, ltxtquery),
+ OPERATOR 15 @ (ltxtquery, _ltree),
+ OPERATOR 16 ? (_ltree, _lquery),
+ OPERATOR 17 ? (_lquery, _ltree),
+ FUNCTION 1 _ltree_consistent (internal, _ltree, int2, oid, internal),
+ FUNCTION 2 _ltree_union (internal, internal),
+ FUNCTION 3 _ltree_compress (internal),
+ FUNCTION 4 ltree_decompress (internal),
+ FUNCTION 5 _ltree_penalty (internal, internal, internal),
+ FUNCTION 6 _ltree_picksplit (internal, internal),
+ FUNCTION 7 _ltree_same (ltree_gist, ltree_gist, internal),
+ STORAGE ltree_gist;
diff --git a/contrib/ltree/ltree.control b/contrib/ltree/ltree.control
new file mode 100644
index 0000000..b408d64
--- /dev/null
+++ b/contrib/ltree/ltree.control
@@ -0,0 +1,6 @@
+# ltree extension
+comment = 'data type for hierarchical tree-like structures'
+default_version = '1.2'
+module_pathname = '$libdir/ltree'
+relocatable = true
+trusted = true
diff --git a/contrib/ltree/ltree.h b/contrib/ltree/ltree.h
new file mode 100644
index 0000000..5e07616
--- /dev/null
+++ b/contrib/ltree/ltree.h
@@ -0,0 +1,317 @@
+/* contrib/ltree/ltree.h */
+
+#ifndef __LTREE_H__
+#define __LTREE_H__
+
+#include "fmgr.h"
+#include "tsearch/ts_locale.h"
+#include "utils/memutils.h"
+
+
+/* ltree */
+
+/*
+ * We want the maximum length of a label to be encoding-independent, so
+ * set it somewhat arbitrarily at 1000 characters (not bytes), while using
+ * uint16 fields to hold the byte length.
+ */
+#define LTREE_LABEL_MAX_CHARS 1000
+
+/*
+ * LOWER_NODE used to be defined in the Makefile via the compile flags.
+ * However the MSVC build scripts neglected to do the same which resulted in
+ * MSVC builds not using LOWER_NODE. Since then, the MSVC scripts have been
+ * modified to look for -D compile flags in Makefiles, so here, in order to
+ * get the historic behavior of LOWER_NODE not being defined on MSVC, we only
+ * define it when not building in that environment. This is important as we
+ * want to maintain the same LOWER_NODE behavior after a pg_upgrade.
+ */
+#ifndef _MSC_VER
+#define LOWER_NODE
+#endif
+
+typedef struct
+{
+ uint16 len; /* label string length in bytes */
+ char name[FLEXIBLE_ARRAY_MEMBER];
+} ltree_level;
+
+#define LEVEL_HDRSIZE (offsetof(ltree_level,name))
+#define LEVEL_NEXT(x) ( (ltree_level*)( ((char*)(x)) + MAXALIGN(((ltree_level*)(x))->len + LEVEL_HDRSIZE) ) )
+
+typedef struct
+{
+ int32 vl_len_; /* varlena header (do not touch directly!) */
+ uint16 numlevel; /* number of labels */
+ /* Array of maxalign'd ltree_level structs follows: */
+ char data[FLEXIBLE_ARRAY_MEMBER];
+} ltree;
+
+#define LTREE_HDRSIZE MAXALIGN( offsetof(ltree, data) )
+#define LTREE_FIRST(x) ( (ltree_level*)( ((char*)(x))+LTREE_HDRSIZE ) )
+#define LTREE_MAX_LEVELS PG_UINT16_MAX /* ltree.numlevel is uint16 */
+
+
+/* lquery */
+
+/* lquery_variant: one branch of some OR'ed alternatives */
+typedef struct
+{
+ int32 val; /* CRC of label string */
+ uint16 len; /* label string length in bytes */
+ uint8 flag; /* see LVAR_xxx flags below */
+ char name[FLEXIBLE_ARRAY_MEMBER];
+} lquery_variant;
+
+/*
+ * Note: these macros contain too many MAXALIGN calls and so will sometimes
+ * overestimate the space needed for an lquery_variant. However, we can't
+ * change it without breaking on-disk compatibility for lquery.
+ */
+#define LVAR_HDRSIZE MAXALIGN(offsetof(lquery_variant, name))
+#define LVAR_NEXT(x) ( (lquery_variant*)( ((char*)(x)) + MAXALIGN(((lquery_variant*)(x))->len) + LVAR_HDRSIZE ) )
+
+#define LVAR_ANYEND 0x01 /* '*' flag: prefix match */
+#define LVAR_INCASE 0x02 /* '@' flag: case-insensitive match */
+#define LVAR_SUBLEXEME 0x04 /* '%' flag: word-wise match */
+
+/*
+ * In an lquery_level, "flag" contains the union of the variants' flags
+ * along with possible LQL_xxx flags; so those bit sets can't overlap.
+ *
+ * "low" and "high" are nominally the minimum and maximum number of matches.
+ * However, for backwards compatibility with pre-v13 on-disk lqueries,
+ * non-'*' levels (those with numvar > 0) only have valid low/high if the
+ * LQL_COUNT flag is set; otherwise those fields are zero, but the behavior
+ * is as if they were both 1.
+ */
+typedef struct
+{
+ uint16 totallen; /* total length of this level, in bytes */
+ uint16 flag; /* see LQL_xxx and LVAR_xxx flags */
+ uint16 numvar; /* number of variants; 0 means '*' */
+ uint16 low; /* minimum repeat count */
+ uint16 high; /* maximum repeat count */
+ /* Array of maxalign'd lquery_variant structs follows: */
+ char variants[FLEXIBLE_ARRAY_MEMBER];
+} lquery_level;
+
+#define LQL_HDRSIZE MAXALIGN( offsetof(lquery_level,variants) )
+#define LQL_NEXT(x) ( (lquery_level*)( ((char*)(x)) + MAXALIGN(((lquery_level*)(x))->totallen) ) )
+#define LQL_FIRST(x) ( (lquery_variant*)( ((char*)(x))+LQL_HDRSIZE ) )
+
+#define LQL_NOT 0x10 /* level has '!' (NOT) prefix */
+#define LQL_COUNT 0x20 /* level is non-'*' and has repeat counts */
+
+#ifdef LOWER_NODE
+#define FLG_CANLOOKSIGN(x) ( ( (x) & ( LQL_NOT | LVAR_ANYEND | LVAR_SUBLEXEME ) ) == 0 )
+#else
+#define FLG_CANLOOKSIGN(x) ( ( (x) & ( LQL_NOT | LVAR_ANYEND | LVAR_SUBLEXEME | LVAR_INCASE ) ) == 0 )
+#endif
+#define LQL_CANLOOKSIGN(x) FLG_CANLOOKSIGN( ((lquery_level*)(x))->flag )
+
+typedef struct
+{
+ int32 vl_len_; /* varlena header (do not touch directly!) */
+ uint16 numlevel; /* number of lquery_levels */
+ uint16 firstgood; /* number of leading simple-match levels */
+ uint16 flag; /* see LQUERY_xxx flags below */
+ /* Array of maxalign'd lquery_level structs follows: */
+ char data[FLEXIBLE_ARRAY_MEMBER];
+} lquery;
+
+#define LQUERY_HDRSIZE MAXALIGN( offsetof(lquery, data) )
+#define LQUERY_FIRST(x) ( (lquery_level*)( ((char*)(x))+LQUERY_HDRSIZE ) )
+#define LQUERY_MAX_LEVELS PG_UINT16_MAX /* lquery.numlevel is uint16 */
+
+#define LQUERY_HASNOT 0x01
+
+/* valid label chars are alphanumerics, underscores and hyphens */
+#define ISLABEL(x) ( t_isalnum(x) || t_iseq(x, '_') || t_iseq(x, '-') )
+
+/* full text query */
+
+/*
+ * item in polish notation with back link
+ * to left operand
+ */
+typedef struct ITEM
+{
+ int16 type;
+ int16 left;
+ int32 val;
+ uint8 flag;
+ /* user-friendly value */
+ uint8 length;
+ uint16 distance;
+} ITEM;
+
+/*
+ *Storage:
+ * (len)(size)(array of ITEM)(array of operand in user-friendly form)
+ */
+typedef struct
+{
+ int32 vl_len_; /* varlena header (do not touch directly!) */
+ int32 size;
+ char data[FLEXIBLE_ARRAY_MEMBER];
+} ltxtquery;
+
+#define HDRSIZEQT MAXALIGN(VARHDRSZ + sizeof(int32))
+#define COMPUTESIZE(size,lenofoperand) ( HDRSIZEQT + (size) * sizeof(ITEM) + (lenofoperand) )
+#define LTXTQUERY_TOO_BIG(size,lenofoperand) \
+ ((size) > (MaxAllocSize - HDRSIZEQT - (lenofoperand)) / sizeof(ITEM))
+#define GETQUERY(x) (ITEM*)( (char*)(x)+HDRSIZEQT )
+#define GETOPERAND(x) ( (char*)GETQUERY(x) + ((ltxtquery*)x)->size * sizeof(ITEM) )
+
+#define ISOPERATOR(x) ( (x)=='!' || (x)=='&' || (x)=='|' || (x)=='(' || (x)==')' )
+
+#define END 0
+#define ERR 1
+#define VAL 2
+#define OPR 3
+#define OPEN 4
+#define CLOSE 5
+#define VALTRUE 6 /* for stop words */
+#define VALFALSE 7
+
+
+/* use in array iterator */
+PGDLLEXPORT Datum ltree_isparent(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum ltree_risparent(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum ltq_regex(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum ltq_rregex(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum lt_q_regex(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum lt_q_rregex(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum ltxtq_exec(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum ltxtq_rexec(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum _ltq_regex(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum _ltq_rregex(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum _lt_q_regex(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum _lt_q_rregex(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum _ltxtq_exec(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum _ltxtq_rexec(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum _ltree_isparent(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum _ltree_risparent(PG_FUNCTION_ARGS);
+
+/* Concatenation functions */
+PGDLLEXPORT Datum ltree_addltree(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum ltree_addtext(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum ltree_textadd(PG_FUNCTION_ARGS);
+
+/* Util function */
+PGDLLEXPORT Datum ltree_in(PG_FUNCTION_ARGS);
+
+bool ltree_execute(ITEM *curitem, void *checkval,
+ bool calcnot, bool (*chkcond) (void *checkval, ITEM *val));
+
+int ltree_compare(const ltree *a, const ltree *b);
+bool inner_isparent(const ltree *c, const ltree *p);
+bool compare_subnode(ltree_level *t, char *qn, int len,
+ int (*cmpptr) (const char *, const char *, size_t), bool anyend);
+ltree *lca_inner(ltree **a, int len);
+int ltree_strncasecmp(const char *a, const char *b, size_t s);
+
+/* fmgr macros for ltree objects */
+#define DatumGetLtreeP(X) ((ltree *) PG_DETOAST_DATUM(X))
+#define DatumGetLtreePCopy(X) ((ltree *) PG_DETOAST_DATUM_COPY(X))
+#define PG_GETARG_LTREE_P(n) DatumGetLtreeP(PG_GETARG_DATUM(n))
+#define PG_GETARG_LTREE_P_COPY(n) DatumGetLtreePCopy(PG_GETARG_DATUM(n))
+
+#define DatumGetLqueryP(X) ((lquery *) PG_DETOAST_DATUM(X))
+#define DatumGetLqueryPCopy(X) ((lquery *) PG_DETOAST_DATUM_COPY(X))
+#define PG_GETARG_LQUERY_P(n) DatumGetLqueryP(PG_GETARG_DATUM(n))
+#define PG_GETARG_LQUERY_P_COPY(n) DatumGetLqueryPCopy(PG_GETARG_DATUM(n))
+
+#define DatumGetLtxtqueryP(X) ((ltxtquery *) PG_DETOAST_DATUM(X))
+#define DatumGetLtxtqueryPCopy(X) ((ltxtquery *) PG_DETOAST_DATUM_COPY(X))
+#define PG_GETARG_LTXTQUERY_P(n) DatumGetLtxtqueryP(PG_GETARG_DATUM(n))
+#define PG_GETARG_LTXTQUERY_P_COPY(n) DatumGetLtxtqueryPCopy(PG_GETARG_DATUM(n))
+
+/* GiST support for ltree */
+
+#define BITBYTE 8
+#define SIGLENBIT(siglen) ((siglen) * BITBYTE)
+#define LTREE_SIGLEN_DEFAULT (2 * sizeof(int32))
+#define LTREE_SIGLEN_MAX GISTMaxIndexKeySize
+#define LTREE_GET_SIGLEN() (PG_HAS_OPCLASS_OPTIONS() ? \
+ ((LtreeGistOptions *) PG_GET_OPCLASS_OPTIONS())->siglen : \
+ LTREE_SIGLEN_DEFAULT)
+
+typedef unsigned char *BITVECP;
+
+#define LOOPBYTE(siglen) \
+ for(i = 0; i < (siglen); i++)
+
+#define GETBYTE(x,i) ( *( (BITVECP)(x) + (int)( (i) / BITBYTE ) ) )
+#define GETBITBYTE(x,i) ( ((unsigned char)(x)) >> i & 0x01 )
+#define CLRBIT(x,i) GETBYTE(x,i) &= ~( 0x01 << ( (i) % BITBYTE ) )
+#define SETBIT(x,i) GETBYTE(x,i) |= ( 0x01 << ( (i) % BITBYTE ) )
+#define GETBIT(x,i) ( (GETBYTE(x,i) >> ( (i) % BITBYTE )) & 0x01 )
+
+#define HASHVAL(val, siglen) (((unsigned int)(val)) % SIGLENBIT(siglen))
+#define HASH(sign, val, siglen) SETBIT((sign), HASHVAL(val, siglen))
+
+/*
+ * type of index key for ltree. Tree are combined B-Tree and R-Tree
+ * Storage:
+ * Leaf pages
+ * (len)(flag)(ltree)
+ * Non-Leaf
+ * (len)(flag)(sign)(left_ltree)(right_ltree)
+ * ALLTRUE: (len)(flag)(left_ltree)(right_ltree)
+ *
+ */
+
+typedef struct
+{
+ int32 vl_len_; /* varlena header (do not touch directly!) */
+ uint32 flag;
+ char data[FLEXIBLE_ARRAY_MEMBER];
+} ltree_gist;
+
+#define LTG_ONENODE 0x01
+#define LTG_ALLTRUE 0x02
+#define LTG_NORIGHT 0x04
+
+#define LTG_HDRSIZE MAXALIGN(VARHDRSZ + sizeof(uint32))
+#define LTG_SIGN(x) ( (BITVECP)( ((char*)(x))+LTG_HDRSIZE ) )
+#define LTG_NODE(x) ( (ltree*)( ((char*)(x))+LTG_HDRSIZE ) )
+#define LTG_ISONENODE(x) ( ((ltree_gist*)(x))->flag & LTG_ONENODE )
+#define LTG_ISALLTRUE(x) ( ((ltree_gist*)(x))->flag & LTG_ALLTRUE )
+#define LTG_ISNORIGHT(x) ( ((ltree_gist*)(x))->flag & LTG_NORIGHT )
+#define LTG_LNODE(x, siglen) ( (ltree*)( ( ((char*)(x))+LTG_HDRSIZE ) + ( LTG_ISALLTRUE(x) ? 0 : (siglen) ) ) )
+#define LTG_RENODE(x, siglen) ( (ltree*)( ((char*)LTG_LNODE(x, siglen)) + VARSIZE(LTG_LNODE(x, siglen))) )
+#define LTG_RNODE(x, siglen) ( LTG_ISNORIGHT(x) ? LTG_LNODE(x, siglen) : LTG_RENODE(x, siglen) )
+
+#define LTG_GETLNODE(x, siglen) ( LTG_ISONENODE(x) ? LTG_NODE(x) : LTG_LNODE(x, siglen) )
+#define LTG_GETRNODE(x, siglen) ( LTG_ISONENODE(x) ? LTG_NODE(x) : LTG_RNODE(x, siglen) )
+
+extern ltree_gist *ltree_gist_alloc(bool isalltrue, BITVECP sign, int siglen,
+ ltree *left, ltree *right);
+
+/* GiST support for ltree[] */
+
+#define LTREE_ASIGLEN_DEFAULT (7 * sizeof(int32))
+#define LTREE_ASIGLEN_MAX GISTMaxIndexKeySize
+#define LTREE_GET_ASIGLEN() (PG_HAS_OPCLASS_OPTIONS() ? \
+ ((LtreeGistOptions *) PG_GET_OPCLASS_OPTIONS())->siglen : \
+ LTREE_ASIGLEN_DEFAULT)
+#define ASIGLENBIT(siglen) ((siglen) * BITBYTE)
+
+#define ALOOPBYTE(siglen) \
+ for (i = 0; i < (siglen); i++)
+
+#define AHASHVAL(val, siglen) (((unsigned int)(val)) % ASIGLENBIT(siglen))
+#define AHASH(sign, val, siglen) SETBIT((sign), AHASHVAL(val, siglen))
+
+/* gist_ltree_ops and gist__ltree_ops opclass options */
+typedef struct
+{
+ int32 vl_len_; /* varlena header (do not touch directly!) */
+ int siglen; /* signature length in bytes */
+} LtreeGistOptions;
+
+/* type of key is the same to ltree_gist */
+
+#endif
diff --git a/contrib/ltree/ltree_gist.c b/contrib/ltree/ltree_gist.c
new file mode 100644
index 0000000..932f69b
--- /dev/null
+++ b/contrib/ltree/ltree_gist.c
@@ -0,0 +1,749 @@
+/*
+ * GiST support for ltree
+ * Teodor Sigaev <teodor@stack.net>
+ * contrib/ltree/ltree_gist.c
+ */
+#include "postgres.h"
+
+#include "access/gist.h"
+#include "access/reloptions.h"
+#include "access/stratnum.h"
+#include "crc32.h"
+#include "ltree.h"
+#include "utils/array.h"
+
+#define NEXTVAL(x) ( (lquery*)( (char*)(x) + INTALIGN( VARSIZE(x) ) ) )
+#define ISEQ(a,b) ( (a)->numlevel == (b)->numlevel && ltree_compare(a,b)==0 )
+
+PG_FUNCTION_INFO_V1(ltree_gist_in);
+PG_FUNCTION_INFO_V1(ltree_gist_out);
+
+Datum
+ltree_gist_in(PG_FUNCTION_ARGS)
+{
+ ereport(ERROR,
+ (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+ errmsg("cannot accept a value of type %s", "ltree_gist")));
+
+ PG_RETURN_VOID(); /* keep compiler quiet */
+}
+
+Datum
+ltree_gist_out(PG_FUNCTION_ARGS)
+{
+ ereport(ERROR,
+ (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+ errmsg("cannot display a value of type %s", "ltree_gist")));
+
+ PG_RETURN_VOID(); /* keep compiler quiet */
+}
+
+ltree_gist *
+ltree_gist_alloc(bool isalltrue, BITVECP sign, int siglen,
+ ltree *left, ltree *right)
+{
+ int32 size = LTG_HDRSIZE + (isalltrue ? 0 : siglen) +
+ (left ? VARSIZE(left) + (right ? VARSIZE(right) : 0) : 0);
+ ltree_gist *result = palloc(size);
+
+ SET_VARSIZE(result, size);
+
+ if (siglen)
+ {
+ result->flag = 0;
+
+ if (isalltrue)
+ result->flag |= LTG_ALLTRUE;
+ else if (sign)
+ memcpy(LTG_SIGN(result), sign, siglen);
+ else
+ memset(LTG_SIGN(result), 0, siglen);
+
+ if (left)
+ {
+ memcpy(LTG_LNODE(result, siglen), left, VARSIZE(left));
+
+ if (!right || left == right || ISEQ(left, right))
+ result->flag |= LTG_NORIGHT;
+ else
+ memcpy(LTG_RNODE(result, siglen), right, VARSIZE(right));
+ }
+ }
+ else
+ {
+ Assert(left);
+ result->flag = LTG_ONENODE;
+ memcpy(LTG_NODE(result), left, VARSIZE(left));
+ }
+
+ return result;
+}
+
+PG_FUNCTION_INFO_V1(ltree_compress);
+PG_FUNCTION_INFO_V1(ltree_decompress);
+PG_FUNCTION_INFO_V1(ltree_same);
+PG_FUNCTION_INFO_V1(ltree_union);
+PG_FUNCTION_INFO_V1(ltree_penalty);
+PG_FUNCTION_INFO_V1(ltree_picksplit);
+PG_FUNCTION_INFO_V1(ltree_consistent);
+PG_FUNCTION_INFO_V1(ltree_gist_options);
+
+#define GETENTRY(vec,pos) ((ltree_gist *) DatumGetPointer((vec)->vector[(pos)].key))
+
+Datum
+ltree_compress(PG_FUNCTION_ARGS)
+{
+ GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+ GISTENTRY *retval = entry;
+
+ if (entry->leafkey)
+ { /* ltree */
+ ltree *val = DatumGetLtreeP(entry->key);
+ ltree_gist *key = ltree_gist_alloc(false, NULL, 0, val, 0);
+
+ retval = (GISTENTRY *) palloc(sizeof(GISTENTRY));
+ gistentryinit(*retval, PointerGetDatum(key),
+ entry->rel, entry->page,
+ entry->offset, false);
+ }
+ PG_RETURN_POINTER(retval);
+}
+
+Datum
+ltree_decompress(PG_FUNCTION_ARGS)
+{
+ GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+ ltree_gist *key = (ltree_gist *) PG_DETOAST_DATUM(entry->key);
+
+ if (PointerGetDatum(key) != entry->key)
+ {
+ GISTENTRY *retval = (GISTENTRY *) palloc(sizeof(GISTENTRY));
+
+ gistentryinit(*retval, PointerGetDatum(key),
+ entry->rel, entry->page,
+ entry->offset, false);
+ PG_RETURN_POINTER(retval);
+ }
+ PG_RETURN_POINTER(entry);
+}
+
+Datum
+ltree_same(PG_FUNCTION_ARGS)
+{
+ ltree_gist *a = (ltree_gist *) PG_GETARG_POINTER(0);
+ ltree_gist *b = (ltree_gist *) PG_GETARG_POINTER(1);
+ bool *result = (bool *) PG_GETARG_POINTER(2);
+ int siglen = LTREE_GET_SIGLEN();
+
+ *result = false;
+ if (LTG_ISONENODE(a) != LTG_ISONENODE(b))
+ PG_RETURN_POINTER(result);
+
+ if (LTG_ISONENODE(a))
+ *result = ISEQ(LTG_NODE(a), LTG_NODE(b));
+ else
+ {
+ int32 i;
+ BITVECP sa = LTG_SIGN(a),
+ sb = LTG_SIGN(b);
+
+ if (LTG_ISALLTRUE(a) != LTG_ISALLTRUE(b))
+ PG_RETURN_POINTER(result);
+
+ if (!ISEQ(LTG_LNODE(a, siglen), LTG_LNODE(b, siglen)))
+ PG_RETURN_POINTER(result);
+ if (!ISEQ(LTG_RNODE(a, siglen), LTG_RNODE(b, siglen)))
+ PG_RETURN_POINTER(result);
+
+ *result = true;
+ if (!LTG_ISALLTRUE(a))
+ {
+ LOOPBYTE(siglen)
+ {
+ if (sa[i] != sb[i])
+ {
+ *result = false;
+ break;
+ }
+ }
+ }
+ }
+
+ PG_RETURN_POINTER(result);
+}
+
+static void
+hashing(BITVECP sign, ltree *t, int siglen)
+{
+ int tlen = t->numlevel;
+ ltree_level *cur = LTREE_FIRST(t);
+ int hash;
+
+ while (tlen > 0)
+ {
+ hash = ltree_crc32_sz(cur->name, cur->len);
+ HASH(sign, hash, siglen);
+ cur = LEVEL_NEXT(cur);
+ tlen--;
+ }
+}
+
+Datum
+ltree_union(PG_FUNCTION_ARGS)
+{
+ GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
+ int *size = (int *) PG_GETARG_POINTER(1);
+ int siglen = LTREE_GET_SIGLEN();
+ BITVECP base = palloc0(siglen);
+ int32 i,
+ j;
+ ltree_gist *result,
+ *cur;
+ ltree *left = NULL,
+ *right = NULL,
+ *curtree;
+ bool isalltrue = false;
+
+ for (j = 0; j < entryvec->n; j++)
+ {
+ cur = GETENTRY(entryvec, j);
+ if (LTG_ISONENODE(cur))
+ {
+ curtree = LTG_NODE(cur);
+ hashing(base, curtree, siglen);
+ if (!left || ltree_compare(left, curtree) > 0)
+ left = curtree;
+ if (!right || ltree_compare(right, curtree) < 0)
+ right = curtree;
+ }
+ else
+ {
+ if (isalltrue || LTG_ISALLTRUE(cur))
+ isalltrue = true;
+ else
+ {
+ BITVECP sc = LTG_SIGN(cur);
+
+ LOOPBYTE(siglen)
+ ((unsigned char *) base)[i] |= sc[i];
+ }
+
+ curtree = LTG_LNODE(cur, siglen);
+ if (!left || ltree_compare(left, curtree) > 0)
+ left = curtree;
+ curtree = LTG_RNODE(cur, siglen);
+ if (!right || ltree_compare(right, curtree) < 0)
+ right = curtree;
+ }
+ }
+
+ if (isalltrue == false)
+ {
+ isalltrue = true;
+ LOOPBYTE(siglen)
+ {
+ if (((unsigned char *) base)[i] != 0xff)
+ {
+ isalltrue = false;
+ break;
+ }
+ }
+ }
+
+ result = ltree_gist_alloc(isalltrue, base, siglen, left, right);
+
+ *size = VARSIZE(result);
+
+ PG_RETURN_POINTER(result);
+}
+
+Datum
+ltree_penalty(PG_FUNCTION_ARGS)
+{
+ ltree_gist *origval = (ltree_gist *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
+ ltree_gist *newval = (ltree_gist *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
+ float *penalty = (float *) PG_GETARG_POINTER(2);
+ int siglen = LTREE_GET_SIGLEN();
+ int32 cmpr,
+ cmpl;
+
+ cmpl = ltree_compare(LTG_GETLNODE(origval, siglen), LTG_GETLNODE(newval, siglen));
+ cmpr = ltree_compare(LTG_GETRNODE(newval, siglen), LTG_GETRNODE(origval, siglen));
+
+ *penalty = Max(cmpl, 0) + Max(cmpr, 0);
+
+ PG_RETURN_POINTER(penalty);
+}
+
+/* used for sorting */
+typedef struct rix
+{
+ int index;
+ ltree *r;
+} RIX;
+
+static int
+treekey_cmp(const void *a, const void *b)
+{
+ return ltree_compare(((const RIX *) a)->r,
+ ((const RIX *) b)->r);
+}
+
+
+Datum
+ltree_picksplit(PG_FUNCTION_ARGS)
+{
+ GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
+ GIST_SPLITVEC *v = (GIST_SPLITVEC *) PG_GETARG_POINTER(1);
+ int siglen = LTREE_GET_SIGLEN();
+ OffsetNumber j;
+ int32 i;
+ RIX *array;
+ OffsetNumber maxoff;
+ int nbytes;
+ ltree *lu_l,
+ *lu_r,
+ *ru_l,
+ *ru_r;
+ ltree_gist *lu,
+ *ru;
+ BITVECP ls = palloc0(siglen),
+ rs = palloc0(siglen);
+ bool lisat = false,
+ risat = false;
+
+ maxoff = entryvec->n - 1;
+ nbytes = (maxoff + 2) * sizeof(OffsetNumber);
+ v->spl_left = (OffsetNumber *) palloc(nbytes);
+ v->spl_right = (OffsetNumber *) palloc(nbytes);
+ v->spl_nleft = 0;
+ v->spl_nright = 0;
+ array = (RIX *) palloc(sizeof(RIX) * (maxoff + 1));
+
+ /* copy the data into RIXes, and sort the RIXes */
+ for (j = FirstOffsetNumber; j <= maxoff; j = OffsetNumberNext(j))
+ {
+ array[j].index = j;
+ lu = GETENTRY(entryvec, j); /* use as tmp val */
+ array[j].r = LTG_GETLNODE(lu, siglen);
+ }
+
+ qsort(&array[FirstOffsetNumber], maxoff - FirstOffsetNumber + 1,
+ sizeof(RIX), treekey_cmp);
+
+ lu_l = lu_r = ru_l = ru_r = NULL;
+ for (j = FirstOffsetNumber; j <= maxoff; j = OffsetNumberNext(j))
+ {
+ lu = GETENTRY(entryvec, array[j].index); /* use as tmp val */
+ if (j <= (maxoff - FirstOffsetNumber + 1) / 2)
+ {
+ v->spl_left[v->spl_nleft] = array[j].index;
+ v->spl_nleft++;
+ if (lu_r == NULL || ltree_compare(LTG_GETRNODE(lu, siglen), lu_r) > 0)
+ lu_r = LTG_GETRNODE(lu, siglen);
+ if (LTG_ISONENODE(lu))
+ hashing(ls, LTG_NODE(lu), siglen);
+ else
+ {
+ if (lisat || LTG_ISALLTRUE(lu))
+ lisat = true;
+ else
+ {
+ BITVECP sc = LTG_SIGN(lu);
+
+ LOOPBYTE(siglen)
+ ((unsigned char *) ls)[i] |= sc[i];
+ }
+ }
+ }
+ else
+ {
+ v->spl_right[v->spl_nright] = array[j].index;
+ v->spl_nright++;
+ if (ru_r == NULL || ltree_compare(LTG_GETRNODE(lu, siglen), ru_r) > 0)
+ ru_r = LTG_GETRNODE(lu, siglen);
+ if (LTG_ISONENODE(lu))
+ hashing(rs, LTG_NODE(lu), siglen);
+ else
+ {
+ if (risat || LTG_ISALLTRUE(lu))
+ risat = true;
+ else
+ {
+ BITVECP sc = LTG_SIGN(lu);
+
+ LOOPBYTE(siglen)
+ ((unsigned char *) rs)[i] |= sc[i];
+ }
+ }
+ }
+ }
+
+ if (lisat == false)
+ {
+ lisat = true;
+ LOOPBYTE(siglen)
+ {
+ if (((unsigned char *) ls)[i] != 0xff)
+ {
+ lisat = false;
+ break;
+ }
+ }
+ }
+
+ if (risat == false)
+ {
+ risat = true;
+ LOOPBYTE(siglen)
+ {
+ if (((unsigned char *) rs)[i] != 0xff)
+ {
+ risat = false;
+ break;
+ }
+ }
+ }
+
+ lu_l = LTG_GETLNODE(GETENTRY(entryvec, array[FirstOffsetNumber].index), siglen);
+ lu = ltree_gist_alloc(lisat, ls, siglen, lu_l, lu_r);
+
+ ru_l = LTG_GETLNODE(GETENTRY(entryvec, array[1 + ((maxoff - FirstOffsetNumber + 1) / 2)].index), siglen);
+ ru = ltree_gist_alloc(risat, rs, siglen, ru_l, ru_r);
+
+ pfree(ls);
+ pfree(rs);
+
+ v->spl_ldatum = PointerGetDatum(lu);
+ v->spl_rdatum = PointerGetDatum(ru);
+
+ PG_RETURN_POINTER(v);
+}
+
+static bool
+gist_isparent(ltree_gist *key, ltree *query, int siglen)
+{
+ int32 numlevel = query->numlevel;
+ int i;
+
+ for (i = query->numlevel; i >= 0; i--)
+ {
+ query->numlevel = i;
+ if (ltree_compare(query, LTG_GETLNODE(key, siglen)) >= 0 &&
+ ltree_compare(query, LTG_GETRNODE(key, siglen)) <= 0)
+ {
+ query->numlevel = numlevel;
+ return true;
+ }
+ }
+
+ query->numlevel = numlevel;
+ return false;
+}
+
+static ltree *
+copy_ltree(ltree *src)
+{
+ ltree *dst = (ltree *) palloc0(VARSIZE(src));
+
+ memcpy(dst, src, VARSIZE(src));
+ return dst;
+}
+
+static bool
+gist_ischild(ltree_gist *key, ltree *query, int siglen)
+{
+ ltree *left = copy_ltree(LTG_GETLNODE(key, siglen));
+ ltree *right = copy_ltree(LTG_GETRNODE(key, siglen));
+ bool res = true;
+
+ if (left->numlevel > query->numlevel)
+ left->numlevel = query->numlevel;
+
+ if (ltree_compare(query, left) < 0)
+ res = false;
+
+ if (right->numlevel > query->numlevel)
+ right->numlevel = query->numlevel;
+
+ if (res && ltree_compare(query, right) > 0)
+ res = false;
+
+ pfree(left);
+ pfree(right);
+
+ return res;
+}
+
+static bool
+gist_qe(ltree_gist *key, lquery *query, int siglen)
+{
+ lquery_level *curq = LQUERY_FIRST(query);
+ BITVECP sign = LTG_SIGN(key);
+ int qlen = query->numlevel;
+
+ if (LTG_ISALLTRUE(key))
+ return true;
+
+ while (qlen > 0)
+ {
+ if (curq->numvar && LQL_CANLOOKSIGN(curq))
+ {
+ bool isexist = false;
+ int vlen = curq->numvar;
+ lquery_variant *curv = LQL_FIRST(curq);
+
+ while (vlen > 0)
+ {
+ if (GETBIT(sign, HASHVAL(curv->val, siglen)))
+ {
+ isexist = true;
+ break;
+ }
+ curv = LVAR_NEXT(curv);
+ vlen--;
+ }
+ if (!isexist)
+ return false;
+ }
+
+ curq = LQL_NEXT(curq);
+ qlen--;
+ }
+
+ return true;
+}
+
+static int
+gist_tqcmp(ltree *t, lquery *q)
+{
+ ltree_level *al = LTREE_FIRST(t);
+ lquery_level *ql = LQUERY_FIRST(q);
+ lquery_variant *bl;
+ int an = t->numlevel;
+ int bn = q->firstgood;
+ int res = 0;
+
+ while (an > 0 && bn > 0)
+ {
+ bl = LQL_FIRST(ql);
+ if ((res = memcmp(al->name, bl->name, Min(al->len, bl->len))) == 0)
+ {
+ if (al->len != bl->len)
+ return al->len - bl->len;
+ }
+ else
+ return res;
+ an--;
+ bn--;
+ al = LEVEL_NEXT(al);
+ ql = LQL_NEXT(ql);
+ }
+
+ return Min(t->numlevel, q->firstgood) - q->firstgood;
+}
+
+static bool
+gist_between(ltree_gist *key, lquery *query, int siglen)
+{
+ if (query->firstgood == 0)
+ return true;
+
+ if (gist_tqcmp(LTG_GETLNODE(key, siglen), query) > 0)
+ return false;
+
+ if (gist_tqcmp(LTG_GETRNODE(key, siglen), query) < 0)
+ return false;
+
+ return true;
+}
+
+typedef struct LtreeSignature
+{
+ BITVECP sign;
+ int siglen;
+} LtreeSignature;
+
+static bool
+checkcondition_bit(void *cxt, ITEM *val)
+{
+ LtreeSignature *sig = cxt;
+
+ return (FLG_CANLOOKSIGN(val->flag)) ? GETBIT(sig->sign, HASHVAL(val->val, sig->siglen)) : true;
+}
+
+static bool
+gist_qtxt(ltree_gist *key, ltxtquery *query, int siglen)
+{
+ LtreeSignature sig;
+
+ if (LTG_ISALLTRUE(key))
+ return true;
+
+ sig.sign = LTG_SIGN(key);
+ sig.siglen = siglen;
+
+ return ltree_execute(GETQUERY(query),
+ &sig, false,
+ checkcondition_bit);
+}
+
+static bool
+arrq_cons(ltree_gist *key, ArrayType *_query, int siglen)
+{
+ lquery *query = (lquery *) ARR_DATA_PTR(_query);
+ int num = ArrayGetNItems(ARR_NDIM(_query), ARR_DIMS(_query));
+
+ if (ARR_NDIM(_query) > 1)
+ ereport(ERROR,
+ (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
+ errmsg("array must be one-dimensional")));
+ if (array_contains_nulls(_query))
+ ereport(ERROR,
+ (errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
+ errmsg("array must not contain nulls")));
+
+ while (num > 0)
+ {
+ if (gist_qe(key, query, siglen) && gist_between(key, query, siglen))
+ return true;
+ num--;
+ query = NEXTVAL(query);
+ }
+ return false;
+}
+
+Datum
+ltree_consistent(PG_FUNCTION_ARGS)
+{
+ GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+ StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
+
+ /* Oid subtype = PG_GETARG_OID(3); */
+ bool *recheck = (bool *) PG_GETARG_POINTER(4);
+ int siglen = LTREE_GET_SIGLEN();
+ ltree_gist *key = (ltree_gist *) DatumGetPointer(entry->key);
+ void *query = NULL;
+ bool res = false;
+
+ /* All cases served by this function are exact */
+ *recheck = false;
+
+ switch (strategy)
+ {
+ case BTLessStrategyNumber:
+ query = PG_GETARG_LTREE_P(1);
+ res = (GIST_LEAF(entry)) ?
+ (ltree_compare((ltree *) query, LTG_NODE(key)) > 0)
+ :
+ (ltree_compare((ltree *) query, LTG_GETLNODE(key, siglen)) >= 0);
+ break;
+ case BTLessEqualStrategyNumber:
+ query = PG_GETARG_LTREE_P(1);
+ res = (ltree_compare((ltree *) query, LTG_GETLNODE(key, siglen)) >= 0);
+ break;
+ case BTEqualStrategyNumber:
+ query = PG_GETARG_LTREE_P(1);
+ if (GIST_LEAF(entry))
+ res = (ltree_compare((ltree *) query, LTG_NODE(key)) == 0);
+ else
+ res = (ltree_compare((ltree *) query, LTG_GETLNODE(key, siglen)) >= 0
+ &&
+ ltree_compare((ltree *) query, LTG_GETRNODE(key, siglen)) <= 0);
+ break;
+ case BTGreaterEqualStrategyNumber:
+ query = PG_GETARG_LTREE_P(1);
+ res = (ltree_compare((ltree *) query, LTG_GETRNODE(key, siglen)) <= 0);
+ break;
+ case BTGreaterStrategyNumber:
+ query = PG_GETARG_LTREE_P(1);
+ res = (GIST_LEAF(entry)) ?
+ (ltree_compare((ltree *) query, LTG_GETRNODE(key, siglen)) < 0)
+ :
+ (ltree_compare((ltree *) query, LTG_GETRNODE(key, siglen)) <= 0);
+ break;
+ case 10:
+ query = PG_GETARG_LTREE_P_COPY(1);
+ res = (GIST_LEAF(entry)) ?
+ inner_isparent((ltree *) query, LTG_NODE(key))
+ :
+ gist_isparent(key, (ltree *) query, siglen);
+ break;
+ case 11:
+ query = PG_GETARG_LTREE_P(1);
+ res = (GIST_LEAF(entry)) ?
+ inner_isparent(LTG_NODE(key), (ltree *) query)
+ :
+ gist_ischild(key, (ltree *) query, siglen);
+ break;
+ case 12:
+ case 13:
+ query = PG_GETARG_LQUERY_P(1);
+ if (GIST_LEAF(entry))
+ res = DatumGetBool(DirectFunctionCall2(ltq_regex,
+ PointerGetDatum(LTG_NODE(key)),
+ PointerGetDatum((lquery *) query)
+ ));
+ else
+ res = (gist_qe(key, (lquery *) query, siglen) &&
+ gist_between(key, (lquery *) query, siglen));
+ break;
+ case 14:
+ case 15:
+ query = PG_GETARG_LTXTQUERY_P(1);
+ if (GIST_LEAF(entry))
+ res = DatumGetBool(DirectFunctionCall2(ltxtq_exec,
+ PointerGetDatum(LTG_NODE(key)),
+ PointerGetDatum((ltxtquery *) query)
+ ));
+ else
+ res = gist_qtxt(key, (ltxtquery *) query, siglen);
+ break;
+ case 16:
+ case 17:
+ query = PG_GETARG_ARRAYTYPE_P(1);
+ if (GIST_LEAF(entry))
+ res = DatumGetBool(DirectFunctionCall2(lt_q_regex,
+ PointerGetDatum(LTG_NODE(key)),
+ PointerGetDatum((ArrayType *) query)
+ ));
+ else
+ res = arrq_cons(key, (ArrayType *) query, siglen);
+ break;
+ default:
+ /* internal error */
+ elog(ERROR, "unrecognized StrategyNumber: %d", strategy);
+ }
+
+ PG_FREE_IF_COPY(query, 1);
+ PG_RETURN_BOOL(res);
+}
+
+static void
+ltree_gist_relopts_validator(void *parsed_options, relopt_value *vals,
+ int nvals)
+{
+ LtreeGistOptions *options = (LtreeGistOptions *) parsed_options;
+
+ if (options->siglen != INTALIGN(options->siglen))
+ ereport(ERROR,
+ (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
+ errmsg("siglen value must be a multiple of %d", ALIGNOF_INT)));
+}
+
+Datum
+ltree_gist_options(PG_FUNCTION_ARGS)
+{
+ local_relopts *relopts = (local_relopts *) PG_GETARG_POINTER(0);
+
+ init_local_reloptions(relopts, sizeof(LtreeGistOptions));
+ add_local_int_reloption(relopts, "siglen",
+ "signature length in bytes",
+ LTREE_SIGLEN_DEFAULT,
+ INTALIGN(1),
+ LTREE_SIGLEN_MAX,
+ offsetof(LtreeGistOptions, siglen));
+ register_reloptions_validator(relopts, ltree_gist_relopts_validator);
+
+ PG_RETURN_VOID();
+}
diff --git a/contrib/ltree/ltree_io.c b/contrib/ltree/ltree_io.c
new file mode 100644
index 0000000..0a12c77
--- /dev/null
+++ b/contrib/ltree/ltree_io.c
@@ -0,0 +1,816 @@
+/*
+ * in/out function for ltree and lquery
+ * Teodor Sigaev <teodor@stack.net>
+ * contrib/ltree/ltree_io.c
+ */
+#include "postgres.h"
+
+#include <ctype.h>
+
+#include "crc32.h"
+#include "libpq/pqformat.h"
+#include "ltree.h"
+#include "utils/memutils.h"
+#include "varatt.h"
+
+
+typedef struct
+{
+ const char *start;
+ int len; /* length in bytes */
+ int flag;
+ int wlen; /* length in characters */
+} nodeitem;
+
+#define LTPRS_WAITNAME 0
+#define LTPRS_WAITDELIM 1
+
+static bool finish_nodeitem(nodeitem *lptr, const char *ptr,
+ bool is_lquery, int pos, struct Node *escontext);
+
+
+/*
+ * expects a null terminated string
+ * returns an ltree
+ */
+static ltree *
+parse_ltree(const char *buf, struct Node *escontext)
+{
+ const char *ptr;
+ nodeitem *list,
+ *lptr;
+ int num = 0,
+ totallen = 0;
+ int state = LTPRS_WAITNAME;
+ ltree *result;
+ ltree_level *curlevel;
+ int charlen;
+ int pos = 1; /* character position for error messages */
+
+#define UNCHAR ereturn(escontext, NULL,\
+ errcode(ERRCODE_SYNTAX_ERROR), \
+ errmsg("ltree syntax error at character %d", \
+ pos))
+
+ ptr = buf;
+ while (*ptr)
+ {
+ charlen = pg_mblen(ptr);
+ if (t_iseq(ptr, '.'))
+ num++;
+ ptr += charlen;
+ }
+
+ if (num + 1 > LTREE_MAX_LEVELS)
+ ereturn(escontext, NULL,
+ (errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED),
+ errmsg("number of ltree labels (%d) exceeds the maximum allowed (%d)",
+ num + 1, LTREE_MAX_LEVELS)));
+ list = lptr = (nodeitem *) palloc(sizeof(nodeitem) * (num + 1));
+ ptr = buf;
+ while (*ptr)
+ {
+ charlen = pg_mblen(ptr);
+
+ switch (state)
+ {
+ case LTPRS_WAITNAME:
+ if (ISLABEL(ptr))
+ {
+ lptr->start = ptr;
+ lptr->wlen = 0;
+ state = LTPRS_WAITDELIM;
+ }
+ else
+ UNCHAR;
+ break;
+ case LTPRS_WAITDELIM:
+ if (t_iseq(ptr, '.'))
+ {
+ if (!finish_nodeitem(lptr, ptr, false, pos, escontext))
+ return NULL;
+ totallen += MAXALIGN(lptr->len + LEVEL_HDRSIZE);
+ lptr++;
+ state = LTPRS_WAITNAME;
+ }
+ else if (!ISLABEL(ptr))
+ UNCHAR;
+ break;
+ default:
+ elog(ERROR, "internal error in ltree parser");
+ }
+
+ ptr += charlen;
+ lptr->wlen++;
+ pos++;
+ }
+
+ if (state == LTPRS_WAITDELIM)
+ {
+ if (!finish_nodeitem(lptr, ptr, false, pos, escontext))
+ return NULL;
+ totallen += MAXALIGN(lptr->len + LEVEL_HDRSIZE);
+ lptr++;
+ }
+ else if (!(state == LTPRS_WAITNAME && lptr == list))
+ ereturn(escontext, NULL,
+ (errcode(ERRCODE_SYNTAX_ERROR),
+ errmsg("ltree syntax error"),
+ errdetail("Unexpected end of input.")));
+
+ result = (ltree *) palloc0(LTREE_HDRSIZE + totallen);
+ SET_VARSIZE(result, LTREE_HDRSIZE + totallen);
+ result->numlevel = lptr - list;
+ curlevel = LTREE_FIRST(result);
+ lptr = list;
+ while (lptr - list < result->numlevel)
+ {
+ curlevel->len = (uint16) lptr->len;
+ memcpy(curlevel->name, lptr->start, lptr->len);
+ curlevel = LEVEL_NEXT(curlevel);
+ lptr++;
+ }
+
+ pfree(list);
+ return result;
+
+#undef UNCHAR
+}
+
+/*
+ * expects an ltree
+ * returns a null terminated string
+ */
+static char *
+deparse_ltree(const ltree *in)
+{
+ char *buf,
+ *ptr;
+ int i;
+ ltree_level *curlevel;
+
+ ptr = buf = (char *) palloc(VARSIZE(in));
+ curlevel = LTREE_FIRST(in);
+ for (i = 0; i < in->numlevel; i++)
+ {
+ if (i != 0)
+ {
+ *ptr = '.';
+ ptr++;
+ }
+ memcpy(ptr, curlevel->name, curlevel->len);
+ ptr += curlevel->len;
+ curlevel = LEVEL_NEXT(curlevel);
+ }
+
+ *ptr = '\0';
+ return buf;
+}
+
+/*
+ * Basic ltree I/O functions
+ */
+PG_FUNCTION_INFO_V1(ltree_in);
+Datum
+ltree_in(PG_FUNCTION_ARGS)
+{
+ char *buf = (char *) PG_GETARG_POINTER(0);
+ ltree *res;
+
+ if ((res = parse_ltree(buf, fcinfo->context)) == NULL)
+ PG_RETURN_NULL();
+
+ PG_RETURN_POINTER(res);
+}
+
+PG_FUNCTION_INFO_V1(ltree_out);
+Datum
+ltree_out(PG_FUNCTION_ARGS)
+{
+ ltree *in = PG_GETARG_LTREE_P(0);
+
+ PG_RETURN_POINTER(deparse_ltree(in));
+}
+
+/*
+ * ltree type send function
+ *
+ * The type is sent as text in binary mode, so this is almost the same
+ * as the output function, but it's prefixed with a version number so we
+ * can change the binary format sent in future if necessary. For now,
+ * only version 1 is supported.
+ */
+PG_FUNCTION_INFO_V1(ltree_send);
+Datum
+ltree_send(PG_FUNCTION_ARGS)
+{
+ ltree *in = PG_GETARG_LTREE_P(0);
+ StringInfoData buf;
+ int version = 1;
+ char *res = deparse_ltree(in);
+
+ pq_begintypsend(&buf);
+ pq_sendint8(&buf, version);
+ pq_sendtext(&buf, res, strlen(res));
+ pfree(res);
+
+ PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
+}
+
+/*
+ * ltree type recv function
+ *
+ * The type is sent as text in binary mode, so this is almost the same
+ * as the input function, but it's prefixed with a version number so we
+ * can change the binary format sent in future if necessary. For now,
+ * only version 1 is supported.
+ */
+PG_FUNCTION_INFO_V1(ltree_recv);
+Datum
+ltree_recv(PG_FUNCTION_ARGS)
+{
+ StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
+ int version = pq_getmsgint(buf, 1);
+ char *str;
+ int nbytes;
+ ltree *res;
+
+ if (version != 1)
+ elog(ERROR, "unsupported ltree version number %d", version);
+
+ str = pq_getmsgtext(buf, buf->len - buf->cursor, &nbytes);
+ res = parse_ltree(str, NULL);
+ pfree(str);
+
+ PG_RETURN_POINTER(res);
+}
+
+
+#define LQPRS_WAITLEVEL 0
+#define LQPRS_WAITDELIM 1
+#define LQPRS_WAITOPEN 2
+#define LQPRS_WAITFNUM 3
+#define LQPRS_WAITSNUM 4
+#define LQPRS_WAITND 5
+#define LQPRS_WAITCLOSE 6
+#define LQPRS_WAITEND 7
+#define LQPRS_WAITVAR 8
+
+
+#define GETVAR(x) ( *((nodeitem**)LQL_FIRST(x)) )
+#define ITEMSIZE MAXALIGN(LQL_HDRSIZE+sizeof(nodeitem*))
+#define NEXTLEV(x) ( (lquery_level*)( ((char*)(x)) + ITEMSIZE) )
+
+/*
+ * expects a null terminated string
+ * returns an lquery
+ */
+static lquery *
+parse_lquery(const char *buf, struct Node *escontext)
+{
+ const char *ptr;
+ int num = 0,
+ totallen = 0,
+ numOR = 0;
+ int state = LQPRS_WAITLEVEL;
+ lquery *result;
+ nodeitem *lptr = NULL;
+ lquery_level *cur,
+ *curqlevel,
+ *tmpql;
+ lquery_variant *lrptr = NULL;
+ bool hasnot = false;
+ bool wasbad = false;
+ int charlen;
+ int pos = 1; /* character position for error messages */
+
+#define UNCHAR ereturn(escontext, NULL,\
+ errcode(ERRCODE_SYNTAX_ERROR), \
+ errmsg("lquery syntax error at character %d", \
+ pos))
+
+ ptr = buf;
+ while (*ptr)
+ {
+ charlen = pg_mblen(ptr);
+
+ if (t_iseq(ptr, '.'))
+ num++;
+ else if (t_iseq(ptr, '|'))
+ numOR++;
+
+ ptr += charlen;
+ }
+
+ num++;
+ if (num > LQUERY_MAX_LEVELS)
+ ereturn(escontext, NULL,
+ (errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED),
+ errmsg("number of lquery items (%d) exceeds the maximum allowed (%d)",
+ num, LQUERY_MAX_LEVELS)));
+ curqlevel = tmpql = (lquery_level *) palloc0(ITEMSIZE * num);
+ ptr = buf;
+ while (*ptr)
+ {
+ charlen = pg_mblen(ptr);
+
+ switch (state)
+ {
+ case LQPRS_WAITLEVEL:
+ if (ISLABEL(ptr))
+ {
+ GETVAR(curqlevel) = lptr = (nodeitem *) palloc0(sizeof(nodeitem) * (numOR + 1));
+ lptr->start = ptr;
+ state = LQPRS_WAITDELIM;
+ curqlevel->numvar = 1;
+ }
+ else if (t_iseq(ptr, '!'))
+ {
+ GETVAR(curqlevel) = lptr = (nodeitem *) palloc0(sizeof(nodeitem) * (numOR + 1));
+ lptr->start = ptr + 1;
+ lptr->wlen = -1; /* compensate for counting ! below */
+ state = LQPRS_WAITDELIM;
+ curqlevel->numvar = 1;
+ curqlevel->flag |= LQL_NOT;
+ hasnot = true;
+ }
+ else if (t_iseq(ptr, '*'))
+ state = LQPRS_WAITOPEN;
+ else
+ UNCHAR;
+ break;
+ case LQPRS_WAITVAR:
+ if (ISLABEL(ptr))
+ {
+ lptr++;
+ lptr->start = ptr;
+ state = LQPRS_WAITDELIM;
+ curqlevel->numvar++;
+ }
+ else
+ UNCHAR;
+ break;
+ case LQPRS_WAITDELIM:
+ if (t_iseq(ptr, '@'))
+ {
+ lptr->flag |= LVAR_INCASE;
+ curqlevel->flag |= LVAR_INCASE;
+ }
+ else if (t_iseq(ptr, '*'))
+ {
+ lptr->flag |= LVAR_ANYEND;
+ curqlevel->flag |= LVAR_ANYEND;
+ }
+ else if (t_iseq(ptr, '%'))
+ {
+ lptr->flag |= LVAR_SUBLEXEME;
+ curqlevel->flag |= LVAR_SUBLEXEME;
+ }
+ else if (t_iseq(ptr, '|'))
+ {
+ if (!finish_nodeitem(lptr, ptr, true, pos, escontext))
+ return NULL;
+ state = LQPRS_WAITVAR;
+ }
+ else if (t_iseq(ptr, '{'))
+ {
+ if (!finish_nodeitem(lptr, ptr, true, pos, escontext))
+ return NULL;
+ curqlevel->flag |= LQL_COUNT;
+ state = LQPRS_WAITFNUM;
+ }
+ else if (t_iseq(ptr, '.'))
+ {
+ if (!finish_nodeitem(lptr, ptr, true, pos, escontext))
+ return NULL;
+ state = LQPRS_WAITLEVEL;
+ curqlevel = NEXTLEV(curqlevel);
+ }
+ else if (ISLABEL(ptr))
+ {
+ /* disallow more chars after a flag */
+ if (lptr->flag)
+ UNCHAR;
+ }
+ else
+ UNCHAR;
+ break;
+ case LQPRS_WAITOPEN:
+ if (t_iseq(ptr, '{'))
+ state = LQPRS_WAITFNUM;
+ else if (t_iseq(ptr, '.'))
+ {
+ /* We only get here for '*', so these are correct defaults */
+ curqlevel->low = 0;
+ curqlevel->high = LTREE_MAX_LEVELS;
+ curqlevel = NEXTLEV(curqlevel);
+ state = LQPRS_WAITLEVEL;
+ }
+ else
+ UNCHAR;
+ break;
+ case LQPRS_WAITFNUM:
+ if (t_iseq(ptr, ','))
+ state = LQPRS_WAITSNUM;
+ else if (t_isdigit(ptr))
+ {
+ int low = atoi(ptr);
+
+ if (low < 0 || low > LTREE_MAX_LEVELS)
+ ereturn(escontext, NULL,
+ (errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED),
+ errmsg("lquery syntax error"),
+ errdetail("Low limit (%d) exceeds the maximum allowed (%d), at character %d.",
+ low, LTREE_MAX_LEVELS, pos)));
+
+ curqlevel->low = (uint16) low;
+ state = LQPRS_WAITND;
+ }
+ else
+ UNCHAR;
+ break;
+ case LQPRS_WAITSNUM:
+ if (t_isdigit(ptr))
+ {
+ int high = atoi(ptr);
+
+ if (high < 0 || high > LTREE_MAX_LEVELS)
+ ereturn(escontext, NULL,
+ (errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED),
+ errmsg("lquery syntax error"),
+ errdetail("High limit (%d) exceeds the maximum allowed (%d), at character %d.",
+ high, LTREE_MAX_LEVELS, pos)));
+ else if (curqlevel->low > high)
+ ereturn(escontext, NULL,
+ (errcode(ERRCODE_SYNTAX_ERROR),
+ errmsg("lquery syntax error"),
+ errdetail("Low limit (%d) is greater than high limit (%d), at character %d.",
+ curqlevel->low, high, pos)));
+
+ curqlevel->high = (uint16) high;
+ state = LQPRS_WAITCLOSE;
+ }
+ else if (t_iseq(ptr, '}'))
+ {
+ curqlevel->high = LTREE_MAX_LEVELS;
+ state = LQPRS_WAITEND;
+ }
+ else
+ UNCHAR;
+ break;
+ case LQPRS_WAITCLOSE:
+ if (t_iseq(ptr, '}'))
+ state = LQPRS_WAITEND;
+ else if (!t_isdigit(ptr))
+ UNCHAR;
+ break;
+ case LQPRS_WAITND:
+ if (t_iseq(ptr, '}'))
+ {
+ curqlevel->high = curqlevel->low;
+ state = LQPRS_WAITEND;
+ }
+ else if (t_iseq(ptr, ','))
+ state = LQPRS_WAITSNUM;
+ else if (!t_isdigit(ptr))
+ UNCHAR;
+ break;
+ case LQPRS_WAITEND:
+ if (t_iseq(ptr, '.'))
+ {
+ state = LQPRS_WAITLEVEL;
+ curqlevel = NEXTLEV(curqlevel);
+ }
+ else
+ UNCHAR;
+ break;
+ default:
+ elog(ERROR, "internal error in lquery parser");
+ }
+
+ ptr += charlen;
+ if (state == LQPRS_WAITDELIM)
+ lptr->wlen++;
+ pos++;
+ }
+
+ if (state == LQPRS_WAITDELIM)
+ {
+ if (!finish_nodeitem(lptr, ptr, true, pos, escontext))
+ return NULL;
+ }
+ else if (state == LQPRS_WAITOPEN)
+ curqlevel->high = LTREE_MAX_LEVELS;
+ else if (state != LQPRS_WAITEND)
+ ereturn(escontext, NULL,
+ (errcode(ERRCODE_SYNTAX_ERROR),
+ errmsg("lquery syntax error"),
+ errdetail("Unexpected end of input.")));
+
+ curqlevel = tmpql;
+ totallen = LQUERY_HDRSIZE;
+ while ((char *) curqlevel - (char *) tmpql < num * ITEMSIZE)
+ {
+ totallen += LQL_HDRSIZE;
+ if (curqlevel->numvar)
+ {
+ lptr = GETVAR(curqlevel);
+ while (lptr - GETVAR(curqlevel) < curqlevel->numvar)
+ {
+ totallen += MAXALIGN(LVAR_HDRSIZE + lptr->len);
+ lptr++;
+ }
+ }
+ curqlevel = NEXTLEV(curqlevel);
+ }
+
+ result = (lquery *) palloc0(totallen);
+ SET_VARSIZE(result, totallen);
+ result->numlevel = num;
+ result->firstgood = 0;
+ result->flag = 0;
+ if (hasnot)
+ result->flag |= LQUERY_HASNOT;
+ cur = LQUERY_FIRST(result);
+ curqlevel = tmpql;
+ while ((char *) curqlevel - (char *) tmpql < num * ITEMSIZE)
+ {
+ memcpy(cur, curqlevel, LQL_HDRSIZE);
+ cur->totallen = LQL_HDRSIZE;
+ if (curqlevel->numvar)
+ {
+ lrptr = LQL_FIRST(cur);
+ lptr = GETVAR(curqlevel);
+ while (lptr - GETVAR(curqlevel) < curqlevel->numvar)
+ {
+ cur->totallen += MAXALIGN(LVAR_HDRSIZE + lptr->len);
+ lrptr->len = lptr->len;
+ lrptr->flag = lptr->flag;
+ lrptr->val = ltree_crc32_sz(lptr->start, lptr->len);
+ memcpy(lrptr->name, lptr->start, lptr->len);
+ lptr++;
+ lrptr = LVAR_NEXT(lrptr);
+ }
+ pfree(GETVAR(curqlevel));
+ if (cur->numvar > 1 || cur->flag != 0)
+ {
+ /* Not a simple match */
+ wasbad = true;
+ }
+ else if (wasbad == false)
+ {
+ /* count leading simple matches */
+ (result->firstgood)++;
+ }
+ }
+ else
+ {
+ /* '*', so this isn't a simple match */
+ wasbad = true;
+ }
+ curqlevel = NEXTLEV(curqlevel);
+ cur = LQL_NEXT(cur);
+ }
+
+ pfree(tmpql);
+ return result;
+
+#undef UNCHAR
+}
+
+/*
+ * Close out parsing an ltree or lquery nodeitem:
+ * compute the correct length, and complain if it's not OK
+ */
+static bool
+finish_nodeitem(nodeitem *lptr, const char *ptr, bool is_lquery, int pos,
+ struct Node *escontext)
+{
+ if (is_lquery)
+ {
+ /*
+ * Back up over any flag characters, and discount them from length and
+ * position.
+ */
+ while (ptr > lptr->start && strchr("@*%", ptr[-1]) != NULL)
+ {
+ ptr--;
+ lptr->wlen--;
+ pos--;
+ }
+ }
+
+ /* Now compute the byte length, which we weren't tracking before. */
+ lptr->len = ptr - lptr->start;
+
+ /* Complain if it's empty or too long */
+ if (lptr->len == 0)
+ ereturn(escontext, false,
+ (errcode(ERRCODE_SYNTAX_ERROR),
+ is_lquery ?
+ errmsg("lquery syntax error at character %d", pos) :
+ errmsg("ltree syntax error at character %d", pos),
+ errdetail("Empty labels are not allowed.")));
+ if (lptr->wlen > LTREE_LABEL_MAX_CHARS)
+ ereturn(escontext, false,
+ (errcode(ERRCODE_NAME_TOO_LONG),
+ errmsg("label string is too long"),
+ errdetail("Label length is %d, must be at most %d, at character %d.",
+ lptr->wlen, LTREE_LABEL_MAX_CHARS, pos)));
+ return true;
+}
+
+/*
+ * expects an lquery
+ * returns a null terminated string
+ */
+static char *
+deparse_lquery(const lquery *in)
+{
+ char *buf,
+ *ptr;
+ int i,
+ j,
+ totallen = 1;
+ lquery_level *curqlevel;
+ lquery_variant *curtlevel;
+
+ curqlevel = LQUERY_FIRST(in);
+ for (i = 0; i < in->numlevel; i++)
+ {
+ totallen++;
+ if (curqlevel->numvar)
+ {
+ totallen += 1 + (curqlevel->numvar * 4) + curqlevel->totallen;
+ if (curqlevel->flag & LQL_COUNT)
+ totallen += 2 * 11 + 3;
+ }
+ else
+ totallen += 2 * 11 + 4;
+ curqlevel = LQL_NEXT(curqlevel);
+ }
+
+ ptr = buf = (char *) palloc(totallen);
+ curqlevel = LQUERY_FIRST(in);
+ for (i = 0; i < in->numlevel; i++)
+ {
+ if (i != 0)
+ {
+ *ptr = '.';
+ ptr++;
+ }
+ if (curqlevel->numvar)
+ {
+ if (curqlevel->flag & LQL_NOT)
+ {
+ *ptr = '!';
+ ptr++;
+ }
+ curtlevel = LQL_FIRST(curqlevel);
+ for (j = 0; j < curqlevel->numvar; j++)
+ {
+ if (j != 0)
+ {
+ *ptr = '|';
+ ptr++;
+ }
+ memcpy(ptr, curtlevel->name, curtlevel->len);
+ ptr += curtlevel->len;
+ if ((curtlevel->flag & LVAR_SUBLEXEME))
+ {
+ *ptr = '%';
+ ptr++;
+ }
+ if ((curtlevel->flag & LVAR_INCASE))
+ {
+ *ptr = '@';
+ ptr++;
+ }
+ if ((curtlevel->flag & LVAR_ANYEND))
+ {
+ *ptr = '*';
+ ptr++;
+ }
+ curtlevel = LVAR_NEXT(curtlevel);
+ }
+ }
+ else
+ {
+ *ptr = '*';
+ ptr++;
+ }
+
+ if ((curqlevel->flag & LQL_COUNT) || curqlevel->numvar == 0)
+ {
+ if (curqlevel->low == curqlevel->high)
+ {
+ sprintf(ptr, "{%d}", curqlevel->low);
+ }
+ else if (curqlevel->low == 0)
+ {
+ if (curqlevel->high == LTREE_MAX_LEVELS)
+ {
+ if (curqlevel->numvar == 0)
+ {
+ /* This is default for '*', so print nothing */
+ *ptr = '\0';
+ }
+ else
+ sprintf(ptr, "{,}");
+ }
+ else
+ sprintf(ptr, "{,%d}", curqlevel->high);
+ }
+ else if (curqlevel->high == LTREE_MAX_LEVELS)
+ {
+ sprintf(ptr, "{%d,}", curqlevel->low);
+ }
+ else
+ sprintf(ptr, "{%d,%d}", curqlevel->low, curqlevel->high);
+ ptr = strchr(ptr, '\0');
+ }
+
+ curqlevel = LQL_NEXT(curqlevel);
+ }
+
+ *ptr = '\0';
+ return buf;
+}
+
+/*
+ * Basic lquery I/O functions
+ */
+PG_FUNCTION_INFO_V1(lquery_in);
+Datum
+lquery_in(PG_FUNCTION_ARGS)
+{
+ char *buf = (char *) PG_GETARG_POINTER(0);
+ lquery *res;
+
+ if ((res = parse_lquery(buf, fcinfo->context)) == NULL)
+ PG_RETURN_NULL();
+
+ PG_RETURN_POINTER(res);
+}
+
+PG_FUNCTION_INFO_V1(lquery_out);
+Datum
+lquery_out(PG_FUNCTION_ARGS)
+{
+ lquery *in = PG_GETARG_LQUERY_P(0);
+
+ PG_RETURN_POINTER(deparse_lquery(in));
+}
+
+/*
+ * lquery type send function
+ *
+ * The type is sent as text in binary mode, so this is almost the same
+ * as the output function, but it's prefixed with a version number so we
+ * can change the binary format sent in future if necessary. For now,
+ * only version 1 is supported.
+ */
+PG_FUNCTION_INFO_V1(lquery_send);
+Datum
+lquery_send(PG_FUNCTION_ARGS)
+{
+ lquery *in = PG_GETARG_LQUERY_P(0);
+ StringInfoData buf;
+ int version = 1;
+ char *res = deparse_lquery(in);
+
+ pq_begintypsend(&buf);
+ pq_sendint8(&buf, version);
+ pq_sendtext(&buf, res, strlen(res));
+ pfree(res);
+
+ PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
+}
+
+/*
+ * lquery type recv function
+ *
+ * The type is sent as text in binary mode, so this is almost the same
+ * as the input function, but it's prefixed with a version number so we
+ * can change the binary format sent in future if necessary. For now,
+ * only version 1 is supported.
+ */
+PG_FUNCTION_INFO_V1(lquery_recv);
+Datum
+lquery_recv(PG_FUNCTION_ARGS)
+{
+ StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
+ int version = pq_getmsgint(buf, 1);
+ char *str;
+ int nbytes;
+ lquery *res;
+
+ if (version != 1)
+ elog(ERROR, "unsupported lquery version number %d", version);
+
+ str = pq_getmsgtext(buf, buf->len - buf->cursor, &nbytes);
+ res = parse_lquery(str, NULL);
+ pfree(str);
+
+ PG_RETURN_POINTER(res);
+}
diff --git a/contrib/ltree/ltree_op.c b/contrib/ltree/ltree_op.c
new file mode 100644
index 0000000..da1db5f
--- /dev/null
+++ b/contrib/ltree/ltree_op.c
@@ -0,0 +1,590 @@
+/*
+ * op function for ltree
+ * Teodor Sigaev <teodor@stack.net>
+ * contrib/ltree/ltree_op.c
+ */
+#include "postgres.h"
+
+#include <ctype.h>
+
+#include "access/htup_details.h"
+#include "catalog/pg_statistic.h"
+#include "ltree.h"
+#include "utils/builtins.h"
+#include "utils/lsyscache.h"
+#include "utils/selfuncs.h"
+
+PG_MODULE_MAGIC;
+
+/* compare functions */
+PG_FUNCTION_INFO_V1(ltree_cmp);
+PG_FUNCTION_INFO_V1(ltree_lt);
+PG_FUNCTION_INFO_V1(ltree_le);
+PG_FUNCTION_INFO_V1(ltree_eq);
+PG_FUNCTION_INFO_V1(ltree_ne);
+PG_FUNCTION_INFO_V1(ltree_ge);
+PG_FUNCTION_INFO_V1(ltree_gt);
+PG_FUNCTION_INFO_V1(nlevel);
+PG_FUNCTION_INFO_V1(ltree_isparent);
+PG_FUNCTION_INFO_V1(ltree_risparent);
+PG_FUNCTION_INFO_V1(subltree);
+PG_FUNCTION_INFO_V1(subpath);
+PG_FUNCTION_INFO_V1(ltree_index);
+PG_FUNCTION_INFO_V1(ltree_addltree);
+PG_FUNCTION_INFO_V1(ltree_addtext);
+PG_FUNCTION_INFO_V1(ltree_textadd);
+PG_FUNCTION_INFO_V1(lca);
+PG_FUNCTION_INFO_V1(ltree2text);
+PG_FUNCTION_INFO_V1(text2ltree);
+PG_FUNCTION_INFO_V1(ltreeparentsel);
+
+int
+ltree_compare(const ltree *a, const ltree *b)
+{
+ ltree_level *al = LTREE_FIRST(a);
+ ltree_level *bl = LTREE_FIRST(b);
+ int an = a->numlevel;
+ int bn = b->numlevel;
+
+ while (an > 0 && bn > 0)
+ {
+ int res;
+
+ if ((res = memcmp(al->name, bl->name, Min(al->len, bl->len))) == 0)
+ {
+ if (al->len != bl->len)
+ return (al->len - bl->len) * 10 * (an + 1);
+ }
+ else
+ {
+ if (res < 0)
+ res = -1;
+ else
+ res = 1;
+ return res * 10 * (an + 1);
+ }
+
+ an--;
+ bn--;
+ al = LEVEL_NEXT(al);
+ bl = LEVEL_NEXT(bl);
+ }
+
+ return (a->numlevel - b->numlevel) * 10 * (an + 1);
+}
+
+#define RUNCMP \
+ltree *a = PG_GETARG_LTREE_P(0); \
+ltree *b = PG_GETARG_LTREE_P(1); \
+int res = ltree_compare(a,b); \
+PG_FREE_IF_COPY(a,0); \
+PG_FREE_IF_COPY(b,1)
+
+Datum
+ltree_cmp(PG_FUNCTION_ARGS)
+{
+ RUNCMP;
+ PG_RETURN_INT32(res);
+}
+
+Datum
+ltree_lt(PG_FUNCTION_ARGS)
+{
+ RUNCMP;
+ PG_RETURN_BOOL(res < 0);
+}
+
+Datum
+ltree_le(PG_FUNCTION_ARGS)
+{
+ RUNCMP;
+ PG_RETURN_BOOL(res <= 0);
+}
+
+Datum
+ltree_eq(PG_FUNCTION_ARGS)
+{
+ RUNCMP;
+ PG_RETURN_BOOL(res == 0);
+}
+
+Datum
+ltree_ge(PG_FUNCTION_ARGS)
+{
+ RUNCMP;
+ PG_RETURN_BOOL(res >= 0);
+}
+
+Datum
+ltree_gt(PG_FUNCTION_ARGS)
+{
+ RUNCMP;
+ PG_RETURN_BOOL(res > 0);
+}
+
+Datum
+ltree_ne(PG_FUNCTION_ARGS)
+{
+ RUNCMP;
+ PG_RETURN_BOOL(res != 0);
+}
+
+Datum
+nlevel(PG_FUNCTION_ARGS)
+{
+ ltree *a = PG_GETARG_LTREE_P(0);
+ int res = a->numlevel;
+
+ PG_FREE_IF_COPY(a, 0);
+ PG_RETURN_INT32(res);
+}
+
+bool
+inner_isparent(const ltree *c, const ltree *p)
+{
+ ltree_level *cl = LTREE_FIRST(c);
+ ltree_level *pl = LTREE_FIRST(p);
+ int pn = p->numlevel;
+
+ if (pn > c->numlevel)
+ return false;
+
+ while (pn > 0)
+ {
+ if (cl->len != pl->len)
+ return false;
+ if (memcmp(cl->name, pl->name, cl->len) != 0)
+ return false;
+
+ pn--;
+ cl = LEVEL_NEXT(cl);
+ pl = LEVEL_NEXT(pl);
+ }
+ return true;
+}
+
+Datum
+ltree_isparent(PG_FUNCTION_ARGS)
+{
+ ltree *c = PG_GETARG_LTREE_P(1);
+ ltree *p = PG_GETARG_LTREE_P(0);
+ bool res = inner_isparent(c, p);
+
+ PG_FREE_IF_COPY(c, 1);
+ PG_FREE_IF_COPY(p, 0);
+ PG_RETURN_BOOL(res);
+}
+
+Datum
+ltree_risparent(PG_FUNCTION_ARGS)
+{
+ ltree *c = PG_GETARG_LTREE_P(0);
+ ltree *p = PG_GETARG_LTREE_P(1);
+ bool res = inner_isparent(c, p);
+
+ PG_FREE_IF_COPY(c, 0);
+ PG_FREE_IF_COPY(p, 1);
+ PG_RETURN_BOOL(res);
+}
+
+
+static ltree *
+inner_subltree(ltree *t, int32 startpos, int32 endpos)
+{
+ char *start = NULL,
+ *end = NULL;
+ ltree_level *ptr = LTREE_FIRST(t);
+ ltree *res;
+ int i;
+
+ if (startpos < 0 || endpos < 0 || startpos >= t->numlevel || startpos > endpos)
+ ereport(ERROR,
+ (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
+ errmsg("invalid positions")));
+
+ if (endpos > t->numlevel)
+ endpos = t->numlevel;
+
+ start = end = (char *) ptr;
+ for (i = 0; i < endpos; i++)
+ {
+ if (i == startpos)
+ start = (char *) ptr;
+ if (i == endpos - 1)
+ {
+ end = (char *) LEVEL_NEXT(ptr);
+ break;
+ }
+ ptr = LEVEL_NEXT(ptr);
+ }
+
+ res = (ltree *) palloc0(LTREE_HDRSIZE + (end - start));
+ SET_VARSIZE(res, LTREE_HDRSIZE + (end - start));
+ res->numlevel = endpos - startpos;
+
+ memcpy(LTREE_FIRST(res), start, end - start);
+
+ return res;
+}
+
+Datum
+subltree(PG_FUNCTION_ARGS)
+{
+ ltree *t = PG_GETARG_LTREE_P(0);
+ ltree *res = inner_subltree(t, PG_GETARG_INT32(1), PG_GETARG_INT32(2));
+
+ PG_FREE_IF_COPY(t, 0);
+ PG_RETURN_POINTER(res);
+}
+
+Datum
+subpath(PG_FUNCTION_ARGS)
+{
+ ltree *t = PG_GETARG_LTREE_P(0);
+ int32 start = PG_GETARG_INT32(1);
+ int32 len = (fcinfo->nargs == 3) ? PG_GETARG_INT32(2) : 0;
+ int32 end;
+ ltree *res;
+
+ end = start + len;
+
+ if (start < 0)
+ {
+ start = t->numlevel + start;
+ end = start + len;
+ }
+ if (start < 0)
+ { /* start > t->numlevel */
+ start = t->numlevel + start;
+ end = start + len;
+ }
+
+ if (len < 0)
+ end = t->numlevel + len;
+ else if (len == 0)
+ end = (fcinfo->nargs == 3) ? start : 0xffff;
+
+ res = inner_subltree(t, start, end);
+
+ PG_FREE_IF_COPY(t, 0);
+ PG_RETURN_POINTER(res);
+}
+
+static ltree *
+ltree_concat(ltree *a, ltree *b)
+{
+ ltree *r;
+ int numlevel = (int) a->numlevel + b->numlevel;
+
+ if (numlevel > LTREE_MAX_LEVELS)
+ ereport(ERROR,
+ (errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED),
+ errmsg("number of ltree levels (%d) exceeds the maximum allowed (%d)",
+ numlevel, LTREE_MAX_LEVELS)));
+
+ r = (ltree *) palloc0(VARSIZE(a) + VARSIZE(b) - LTREE_HDRSIZE);
+ SET_VARSIZE(r, VARSIZE(a) + VARSIZE(b) - LTREE_HDRSIZE);
+ r->numlevel = (uint16) numlevel;
+
+ memcpy(LTREE_FIRST(r), LTREE_FIRST(a), VARSIZE(a) - LTREE_HDRSIZE);
+ memcpy(((char *) LTREE_FIRST(r)) + VARSIZE(a) - LTREE_HDRSIZE,
+ LTREE_FIRST(b),
+ VARSIZE(b) - LTREE_HDRSIZE);
+ return r;
+}
+
+Datum
+ltree_addltree(PG_FUNCTION_ARGS)
+{
+ ltree *a = PG_GETARG_LTREE_P(0);
+ ltree *b = PG_GETARG_LTREE_P(1);
+ ltree *r;
+
+ r = ltree_concat(a, b);
+ PG_FREE_IF_COPY(a, 0);
+ PG_FREE_IF_COPY(b, 1);
+ PG_RETURN_POINTER(r);
+}
+
+Datum
+ltree_addtext(PG_FUNCTION_ARGS)
+{
+ ltree *a = PG_GETARG_LTREE_P(0);
+ text *b = PG_GETARG_TEXT_PP(1);
+ char *s;
+ ltree *r,
+ *tmp;
+
+ s = text_to_cstring(b);
+
+ tmp = (ltree *) DatumGetPointer(DirectFunctionCall1(ltree_in,
+ PointerGetDatum(s)));
+
+ pfree(s);
+
+ r = ltree_concat(a, tmp);
+
+ pfree(tmp);
+
+ PG_FREE_IF_COPY(a, 0);
+ PG_FREE_IF_COPY(b, 1);
+ PG_RETURN_POINTER(r);
+}
+
+Datum
+ltree_index(PG_FUNCTION_ARGS)
+{
+ ltree *a = PG_GETARG_LTREE_P(0);
+ ltree *b = PG_GETARG_LTREE_P(1);
+ int start = (fcinfo->nargs == 3) ? PG_GETARG_INT32(2) : 0;
+ int i,
+ j;
+ ltree_level *startptr,
+ *aptr,
+ *bptr;
+ bool found = false;
+
+ if (start < 0)
+ {
+ if (-start >= a->numlevel)
+ start = 0;
+ else
+ start = (int) (a->numlevel) + start;
+ }
+
+ if (a->numlevel - start < b->numlevel || a->numlevel == 0 || b->numlevel == 0)
+ {
+ PG_FREE_IF_COPY(a, 0);
+ PG_FREE_IF_COPY(b, 1);
+ PG_RETURN_INT32(-1);
+ }
+
+ startptr = LTREE_FIRST(a);
+ for (i = 0; i <= a->numlevel - b->numlevel; i++)
+ {
+ if (i >= start)
+ {
+ aptr = startptr;
+ bptr = LTREE_FIRST(b);
+ for (j = 0; j < b->numlevel; j++)
+ {
+ if (!(aptr->len == bptr->len && memcmp(aptr->name, bptr->name, aptr->len) == 0))
+ break;
+ aptr = LEVEL_NEXT(aptr);
+ bptr = LEVEL_NEXT(bptr);
+ }
+
+ if (j == b->numlevel)
+ {
+ found = true;
+ break;
+ }
+ }
+ startptr = LEVEL_NEXT(startptr);
+ }
+
+ if (!found)
+ i = -1;
+
+ PG_FREE_IF_COPY(a, 0);
+ PG_FREE_IF_COPY(b, 1);
+ PG_RETURN_INT32(i);
+}
+
+Datum
+ltree_textadd(PG_FUNCTION_ARGS)
+{
+ ltree *a = PG_GETARG_LTREE_P(1);
+ text *b = PG_GETARG_TEXT_PP(0);
+ char *s;
+ ltree *r,
+ *tmp;
+
+ s = text_to_cstring(b);
+
+ tmp = (ltree *) DatumGetPointer(DirectFunctionCall1(ltree_in,
+ PointerGetDatum(s)));
+
+ pfree(s);
+
+ r = ltree_concat(tmp, a);
+
+ pfree(tmp);
+
+ PG_FREE_IF_COPY(a, 1);
+ PG_FREE_IF_COPY(b, 0);
+ PG_RETURN_POINTER(r);
+}
+
+/*
+ * Common code for variants of lca(), find longest common ancestor of inputs
+ *
+ * Returns NULL if there is no common ancestor, ie, the longest common
+ * prefix is empty.
+ */
+ltree *
+lca_inner(ltree **a, int len)
+{
+ int tmp,
+ num,
+ i,
+ reslen;
+ ltree **ptr;
+ ltree_level *l1,
+ *l2;
+ ltree *res;
+
+ if (len <= 0)
+ return NULL; /* no inputs? */
+ if ((*a)->numlevel == 0)
+ return NULL; /* any empty input means NULL result */
+
+ /* num is the length of the longest common ancestor so far */
+ num = (*a)->numlevel - 1;
+
+ /* Compare each additional input to *a */
+ ptr = a + 1;
+ while (ptr - a < len)
+ {
+ if ((*ptr)->numlevel == 0)
+ return NULL;
+ else if ((*ptr)->numlevel == 1)
+ num = 0;
+ else
+ {
+ l1 = LTREE_FIRST(*a);
+ l2 = LTREE_FIRST(*ptr);
+ tmp = Min(num, (*ptr)->numlevel - 1);
+ num = 0;
+ for (i = 0; i < tmp; i++)
+ {
+ if (l1->len == l2->len &&
+ memcmp(l1->name, l2->name, l1->len) == 0)
+ num = i + 1;
+ else
+ break;
+ l1 = LEVEL_NEXT(l1);
+ l2 = LEVEL_NEXT(l2);
+ }
+ }
+ ptr++;
+ }
+
+ /* Now compute size of result ... */
+ reslen = LTREE_HDRSIZE;
+ l1 = LTREE_FIRST(*a);
+ for (i = 0; i < num; i++)
+ {
+ reslen += MAXALIGN(l1->len + LEVEL_HDRSIZE);
+ l1 = LEVEL_NEXT(l1);
+ }
+
+ /* ... and construct it by copying from *a */
+ res = (ltree *) palloc0(reslen);
+ SET_VARSIZE(res, reslen);
+ res->numlevel = num;
+
+ l1 = LTREE_FIRST(*a);
+ l2 = LTREE_FIRST(res);
+
+ for (i = 0; i < num; i++)
+ {
+ memcpy(l2, l1, MAXALIGN(l1->len + LEVEL_HDRSIZE));
+ l1 = LEVEL_NEXT(l1);
+ l2 = LEVEL_NEXT(l2);
+ }
+
+ return res;
+}
+
+Datum
+lca(PG_FUNCTION_ARGS)
+{
+ int i;
+ ltree **a,
+ *res;
+
+ a = (ltree **) palloc(sizeof(ltree *) * fcinfo->nargs);
+ for (i = 0; i < fcinfo->nargs; i++)
+ a[i] = PG_GETARG_LTREE_P(i);
+ res = lca_inner(a, (int) fcinfo->nargs);
+ for (i = 0; i < fcinfo->nargs; i++)
+ PG_FREE_IF_COPY(a[i], i);
+ pfree(a);
+
+ if (res)
+ PG_RETURN_POINTER(res);
+ else
+ PG_RETURN_NULL();
+}
+
+Datum
+text2ltree(PG_FUNCTION_ARGS)
+{
+ text *in = PG_GETARG_TEXT_PP(0);
+ char *s;
+ ltree *out;
+
+ s = text_to_cstring(in);
+
+ out = (ltree *) DatumGetPointer(DirectFunctionCall1(ltree_in,
+ PointerGetDatum(s)));
+ pfree(s);
+ PG_FREE_IF_COPY(in, 0);
+ PG_RETURN_POINTER(out);
+}
+
+
+Datum
+ltree2text(PG_FUNCTION_ARGS)
+{
+ ltree *in = PG_GETARG_LTREE_P(0);
+ char *ptr;
+ int i;
+ ltree_level *curlevel;
+ text *out;
+
+ out = (text *) palloc(VARSIZE(in) + VARHDRSZ);
+ ptr = VARDATA(out);
+ curlevel = LTREE_FIRST(in);
+ for (i = 0; i < in->numlevel; i++)
+ {
+ if (i != 0)
+ {
+ *ptr = '.';
+ ptr++;
+ }
+ memcpy(ptr, curlevel->name, curlevel->len);
+ ptr += curlevel->len;
+ curlevel = LEVEL_NEXT(curlevel);
+ }
+
+ SET_VARSIZE(out, ptr - ((char *) out));
+ PG_FREE_IF_COPY(in, 0);
+
+ PG_RETURN_POINTER(out);
+}
+
+
+/*
+ * ltreeparentsel - Selectivity of parent relationship for ltree data types.
+ *
+ * This function is not used anymore, if the ltree extension has been
+ * updated to 1.2 or later.
+ */
+Datum
+ltreeparentsel(PG_FUNCTION_ARGS)
+{
+ PlannerInfo *root = (PlannerInfo *) PG_GETARG_POINTER(0);
+ Oid operator = PG_GETARG_OID(1);
+ List *args = (List *) PG_GETARG_POINTER(2);
+ int varRelid = PG_GETARG_INT32(3);
+ double selec;
+
+ /* Use generic restriction selectivity logic, with default 0.001. */
+ selec = generic_restriction_selectivity(root, operator, InvalidOid,
+ args, varRelid,
+ 0.001);
+
+ PG_RETURN_FLOAT8((float8) selec);
+}
diff --git a/contrib/ltree/ltreetest.sql b/contrib/ltree/ltreetest.sql
new file mode 100644
index 0000000..d6996ca
--- /dev/null
+++ b/contrib/ltree/ltreetest.sql
@@ -0,0 +1,21 @@
+/* contrib/ltree/ltreetest.sql */
+
+-- Adjust this setting to control where the objects get created.
+SET search_path = public;
+
+CREATE TABLE test ( path ltree);
+INSERT INTO test VALUES ('Top');
+INSERT INTO test VALUES ('Top.Science');
+INSERT INTO test VALUES ('Top.Science.Astronomy');
+INSERT INTO test VALUES ('Top.Science.Astronomy.Astrophysics');
+INSERT INTO test VALUES ('Top.Science.Astronomy.Cosmology');
+INSERT INTO test VALUES ('Top.Hobbies');
+INSERT INTO test VALUES ('Top.Hobbies.Amateurs_Astronomy');
+INSERT INTO test VALUES ('Top.Collections');
+INSERT INTO test VALUES ('Top.Collections.Pictures');
+INSERT INTO test VALUES ('Top.Collections.Pictures.Astronomy');
+INSERT INTO test VALUES ('Top.Collections.Pictures.Astronomy.Stars');
+INSERT INTO test VALUES ('Top.Collections.Pictures.Astronomy.Galaxies');
+INSERT INTO test VALUES ('Top.Collections.Pictures.Astronomy.Astronauts');
+CREATE INDEX path_gist_idx ON test USING gist(path);
+CREATE INDEX path_idx ON test USING btree(path);
diff --git a/contrib/ltree/ltxtquery_io.c b/contrib/ltree/ltxtquery_io.c
new file mode 100644
index 0000000..121fc55
--- /dev/null
+++ b/contrib/ltree/ltxtquery_io.c
@@ -0,0 +1,629 @@
+/*
+ * txtquery io
+ * Teodor Sigaev <teodor@stack.net>
+ * contrib/ltree/ltxtquery_io.c
+ */
+#include "postgres.h"
+
+#include <ctype.h>
+
+#include "crc32.h"
+#include "libpq/pqformat.h"
+#include "ltree.h"
+#include "miscadmin.h"
+#include "nodes/miscnodes.h"
+#include "varatt.h"
+
+
+/* parser's states */
+#define WAITOPERAND 1
+#define INOPERAND 2
+#define WAITOPERATOR 3
+
+/*
+ * node of query tree, also used
+ * for storing polish notation in parser
+ */
+typedef struct NODE
+{
+ int32 type;
+ int32 val;
+ int16 distance;
+ int16 length;
+ uint16 flag;
+ struct NODE *next;
+} NODE;
+
+typedef struct
+{
+ char *buf;
+ int32 state;
+ int32 count;
+ struct Node *escontext;
+ /* reverse polish notation in list (for temporary usage) */
+ NODE *str;
+ /* number in str */
+ int32 num;
+
+ /* user-friendly operand */
+ int32 lenop;
+ int32 sumlen;
+ char *op;
+ char *curop;
+} QPRS_STATE;
+
+/*
+ * get token from query string
+ *
+ * caller needs to check if a soft-error was set if the result is ERR.
+ */
+static int32
+gettoken_query(QPRS_STATE *state, int32 *val, int32 *lenval, char **strval, uint16 *flag)
+{
+ int charlen;
+
+ for (;;)
+ {
+ charlen = pg_mblen(state->buf);
+
+ switch (state->state)
+ {
+ case WAITOPERAND:
+ if (t_iseq(state->buf, '!'))
+ {
+ (state->buf)++;
+ *val = (int32) '!';
+ return OPR;
+ }
+ else if (t_iseq(state->buf, '('))
+ {
+ state->count++;
+ (state->buf)++;
+ return OPEN;
+ }
+ else if (ISLABEL(state->buf))
+ {
+ state->state = INOPERAND;
+ *strval = state->buf;
+ *lenval = charlen;
+ *flag = 0;
+ }
+ else if (!t_isspace(state->buf))
+ ereturn(state->escontext, ERR,
+ (errcode(ERRCODE_SYNTAX_ERROR),
+ errmsg("operand syntax error")));
+ break;
+ case INOPERAND:
+ if (ISLABEL(state->buf))
+ {
+ if (*flag)
+ ereturn(state->escontext, ERR,
+ (errcode(ERRCODE_SYNTAX_ERROR),
+ errmsg("modifiers syntax error")));
+ *lenval += charlen;
+ }
+ else if (t_iseq(state->buf, '%'))
+ *flag |= LVAR_SUBLEXEME;
+ else if (t_iseq(state->buf, '@'))
+ *flag |= LVAR_INCASE;
+ else if (t_iseq(state->buf, '*'))
+ *flag |= LVAR_ANYEND;
+ else
+ {
+ state->state = WAITOPERATOR;
+ return VAL;
+ }
+ break;
+ case WAITOPERATOR:
+ if (t_iseq(state->buf, '&') || t_iseq(state->buf, '|'))
+ {
+ state->state = WAITOPERAND;
+ *val = (int32) *(state->buf);
+ (state->buf)++;
+ return OPR;
+ }
+ else if (t_iseq(state->buf, ')'))
+ {
+ (state->buf)++;
+ state->count--;
+ return (state->count < 0) ? ERR : CLOSE;
+ }
+ else if (*(state->buf) == '\0')
+ {
+ return (state->count) ? ERR : END;
+ }
+ else if (!t_iseq(state->buf, ' '))
+ {
+ return ERR;
+ }
+ break;
+ default:
+ return ERR;
+ break;
+ }
+
+ state->buf += charlen;
+ }
+
+ /* should not get here */
+}
+
+/*
+ * push new one in polish notation reverse view
+ */
+static bool
+pushquery(QPRS_STATE *state, int32 type, int32 val, int32 distance, int32 lenval, uint16 flag)
+{
+ NODE *tmp = (NODE *) palloc(sizeof(NODE));
+
+ tmp->type = type;
+ tmp->val = val;
+ tmp->flag = flag;
+ if (distance > 0xffff)
+ ereturn(state->escontext, false,
+ (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
+ errmsg("value is too big")));
+ if (lenval > 0xff)
+ ereturn(state->escontext, false,
+ (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
+ errmsg("operand is too long")));
+ tmp->distance = distance;
+ tmp->length = lenval;
+ tmp->next = state->str;
+ state->str = tmp;
+ state->num++;
+ return true;
+}
+
+/*
+ * This function is used for query text parsing
+ */
+static bool
+pushval_asis(QPRS_STATE *state, int type, char *strval, int lenval, uint16 flag)
+{
+ if (lenval > 0xffff)
+ ereturn(state->escontext, false,
+ (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
+ errmsg("word is too long")));
+
+ if (!pushquery(state, type, ltree_crc32_sz(strval, lenval),
+ state->curop - state->op, lenval, flag))
+ return false;
+
+ while (state->curop - state->op + lenval + 1 >= state->lenop)
+ {
+ int32 tmp = state->curop - state->op;
+
+ state->lenop *= 2;
+ state->op = (char *) repalloc(state->op, state->lenop);
+ state->curop = state->op + tmp;
+ }
+ memcpy(state->curop, strval, lenval);
+ state->curop += lenval;
+ *(state->curop) = '\0';
+ state->curop++;
+ state->sumlen += lenval + 1;
+ return true;
+}
+
+#define STACKDEPTH 32
+/*
+ * make polish notation of query
+ */
+static int32
+makepol(QPRS_STATE *state)
+{
+ int32 val = 0,
+ type;
+ int32 lenval = 0;
+ char *strval = NULL;
+ int32 stack[STACKDEPTH];
+ int32 lenstack = 0;
+ uint16 flag = 0;
+
+ /* since this function recurses, it could be driven to stack overflow */
+ check_stack_depth();
+
+ while ((type = gettoken_query(state, &val, &lenval, &strval, &flag)) != END)
+ {
+ switch (type)
+ {
+ case VAL:
+ if (!pushval_asis(state, VAL, strval, lenval, flag))
+ return ERR;
+ while (lenstack && (stack[lenstack - 1] == (int32) '&' ||
+ stack[lenstack - 1] == (int32) '!'))
+ {
+ lenstack--;
+ if (!pushquery(state, OPR, stack[lenstack], 0, 0, 0))
+ return ERR;
+ }
+ break;
+ case OPR:
+ if (lenstack && val == (int32) '|')
+ {
+ if (!pushquery(state, OPR, val, 0, 0, 0))
+ return ERR;
+ }
+ else
+ {
+ if (lenstack == STACKDEPTH)
+ /* internal error */
+ elog(ERROR, "stack too short");
+ stack[lenstack] = val;
+ lenstack++;
+ }
+ break;
+ case OPEN:
+ if (makepol(state) == ERR)
+ return ERR;
+ while (lenstack && (stack[lenstack - 1] == (int32) '&' ||
+ stack[lenstack - 1] == (int32) '!'))
+ {
+ lenstack--;
+ if (!pushquery(state, OPR, stack[lenstack], 0, 0, 0))
+ return ERR;
+ }
+ break;
+ case CLOSE:
+ while (lenstack)
+ {
+ lenstack--;
+ if (!pushquery(state, OPR, stack[lenstack], 0, 0, 0))
+ return ERR;
+ };
+ return END;
+ break;
+ case ERR:
+ if (SOFT_ERROR_OCCURRED(state->escontext))
+ return ERR;
+ /* fall through */
+ default:
+ ereturn(state->escontext, ERR,
+ (errcode(ERRCODE_SYNTAX_ERROR),
+ errmsg("syntax error")));
+
+ }
+ }
+ while (lenstack)
+ {
+ lenstack--;
+ if (!pushquery(state, OPR, stack[lenstack], 0, 0, 0))
+ return ERR;
+ };
+ return END;
+}
+
+static void
+findoprnd(ITEM *ptr, int32 *pos)
+{
+ /* since this function recurses, it could be driven to stack overflow. */
+ check_stack_depth();
+
+ if (ptr[*pos].type == VAL || ptr[*pos].type == VALTRUE)
+ {
+ ptr[*pos].left = 0;
+ (*pos)++;
+ }
+ else if (ptr[*pos].val == (int32) '!')
+ {
+ ptr[*pos].left = 1;
+ (*pos)++;
+ findoprnd(ptr, pos);
+ }
+ else
+ {
+ ITEM *curitem = &ptr[*pos];
+ int32 tmp = *pos;
+
+ (*pos)++;
+ findoprnd(ptr, pos);
+ curitem->left = *pos - tmp;
+ findoprnd(ptr, pos);
+ }
+}
+
+
+/*
+ * input
+ */
+static ltxtquery *
+queryin(char *buf, struct Node *escontext)
+{
+ QPRS_STATE state;
+ int32 i;
+ ltxtquery *query;
+ int32 commonlen;
+ ITEM *ptr;
+ NODE *tmp;
+ int32 pos = 0;
+
+#ifdef BS_DEBUG
+ char pbuf[16384],
+ *cur;
+#endif
+
+ /* init state */
+ state.buf = buf;
+ state.state = WAITOPERAND;
+ state.count = 0;
+ state.num = 0;
+ state.str = NULL;
+ state.escontext = escontext;
+
+ /* init list of operand */
+ state.sumlen = 0;
+ state.lenop = 64;
+ state.curop = state.op = (char *) palloc(state.lenop);
+ *(state.curop) = '\0';
+
+ /* parse query & make polish notation (postfix, but in reverse order) */
+ if (makepol(&state) == ERR)
+ return NULL;
+ if (!state.num)
+ ereturn(escontext, NULL,
+ (errcode(ERRCODE_SYNTAX_ERROR),
+ errmsg("syntax error"),
+ errdetail("Empty query.")));
+
+ if (LTXTQUERY_TOO_BIG(state.num, state.sumlen))
+ ereturn(escontext, NULL,
+ (errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED),
+ errmsg("ltxtquery is too large")));
+ commonlen = COMPUTESIZE(state.num, state.sumlen);
+
+ query = (ltxtquery *) palloc0(commonlen);
+ SET_VARSIZE(query, commonlen);
+ query->size = state.num;
+ ptr = GETQUERY(query);
+
+ /* set item in polish notation */
+ for (i = 0; i < state.num; i++)
+ {
+ ptr[i].type = state.str->type;
+ ptr[i].val = state.str->val;
+ ptr[i].distance = state.str->distance;
+ ptr[i].length = state.str->length;
+ ptr[i].flag = state.str->flag;
+ tmp = state.str->next;
+ pfree(state.str);
+ state.str = tmp;
+ }
+
+ /* set user-friendly operand view */
+ memcpy(GETOPERAND(query), state.op, state.sumlen);
+ pfree(state.op);
+
+ /* set left operand's position for every operator */
+ pos = 0;
+ findoprnd(ptr, &pos);
+
+ return query;
+}
+
+/*
+ * in without morphology
+ */
+PG_FUNCTION_INFO_V1(ltxtq_in);
+Datum
+ltxtq_in(PG_FUNCTION_ARGS)
+{
+ ltxtquery *res;
+
+ if ((res = queryin((char *) PG_GETARG_POINTER(0), fcinfo->context)) == NULL)
+ PG_RETURN_NULL();
+ PG_RETURN_POINTER(res);
+}
+
+/*
+ * ltxtquery type recv function
+ *
+ * The type is sent as text in binary mode, so this is almost the same
+ * as the input function, but it's prefixed with a version number so we
+ * can change the binary format sent in future if necessary. For now,
+ * only version 1 is supported.
+ */
+PG_FUNCTION_INFO_V1(ltxtq_recv);
+Datum
+ltxtq_recv(PG_FUNCTION_ARGS)
+{
+ StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
+ int version = pq_getmsgint(buf, 1);
+ char *str;
+ int nbytes;
+ ltxtquery *res;
+
+ if (version != 1)
+ elog(ERROR, "unsupported ltxtquery version number %d", version);
+
+ str = pq_getmsgtext(buf, buf->len - buf->cursor, &nbytes);
+ res = queryin(str, NULL);
+ pfree(str);
+
+ PG_RETURN_POINTER(res);
+}
+
+/*
+ * out function
+ */
+typedef struct
+{
+ ITEM *curpol;
+ char *buf;
+ char *cur;
+ char *op;
+ int32 buflen;
+} INFIX;
+
+#define RESIZEBUF(inf,addsize) \
+while( ( (inf)->cur - (inf)->buf ) + (addsize) + 1 >= (inf)->buflen ) \
+{ \
+ int32 len = (inf)->cur - (inf)->buf; \
+ (inf)->buflen *= 2; \
+ (inf)->buf = (char*) repalloc( (void*)(inf)->buf, (inf)->buflen ); \
+ (inf)->cur = (inf)->buf + len; \
+}
+
+/*
+ * recursive walk on tree and print it in
+ * infix (human-readable) view
+ */
+static void
+infix(INFIX *in, bool first)
+{
+ /* since this function recurses, it could be driven to stack overflow. */
+ check_stack_depth();
+
+ if (in->curpol->type == VAL)
+ {
+ char *op = in->op + in->curpol->distance;
+
+ RESIZEBUF(in, in->curpol->length * 2 + 5);
+ while (*op)
+ {
+ *(in->cur) = *op;
+ op++;
+ in->cur++;
+ }
+ if (in->curpol->flag & LVAR_SUBLEXEME)
+ {
+ *(in->cur) = '%';
+ in->cur++;
+ }
+ if (in->curpol->flag & LVAR_INCASE)
+ {
+ *(in->cur) = '@';
+ in->cur++;
+ }
+ if (in->curpol->flag & LVAR_ANYEND)
+ {
+ *(in->cur) = '*';
+ in->cur++;
+ }
+ *(in->cur) = '\0';
+ in->curpol++;
+ }
+ else if (in->curpol->val == (int32) '!')
+ {
+ bool isopr = false;
+
+ RESIZEBUF(in, 1);
+ *(in->cur) = '!';
+ in->cur++;
+ *(in->cur) = '\0';
+ in->curpol++;
+ if (in->curpol->type == OPR)
+ {
+ isopr = true;
+ RESIZEBUF(in, 2);
+ sprintf(in->cur, "( ");
+ in->cur = strchr(in->cur, '\0');
+ }
+ infix(in, isopr);
+ if (isopr)
+ {
+ RESIZEBUF(in, 2);
+ sprintf(in->cur, " )");
+ in->cur = strchr(in->cur, '\0');
+ }
+ }
+ else
+ {
+ int32 op = in->curpol->val;
+ INFIX nrm;
+
+ in->curpol++;
+ if (op == (int32) '|' && !first)
+ {
+ RESIZEBUF(in, 2);
+ sprintf(in->cur, "( ");
+ in->cur = strchr(in->cur, '\0');
+ }
+
+ nrm.curpol = in->curpol;
+ nrm.op = in->op;
+ nrm.buflen = 16;
+ nrm.cur = nrm.buf = (char *) palloc(sizeof(char) * nrm.buflen);
+
+ /* get right operand */
+ infix(&nrm, false);
+
+ /* get & print left operand */
+ in->curpol = nrm.curpol;
+ infix(in, false);
+
+ /* print operator & right operand */
+ RESIZEBUF(in, 3 + (nrm.cur - nrm.buf));
+ sprintf(in->cur, " %c %s", op, nrm.buf);
+ in->cur = strchr(in->cur, '\0');
+ pfree(nrm.buf);
+
+ if (op == (int32) '|' && !first)
+ {
+ RESIZEBUF(in, 2);
+ sprintf(in->cur, " )");
+ in->cur = strchr(in->cur, '\0');
+ }
+ }
+}
+
+PG_FUNCTION_INFO_V1(ltxtq_out);
+Datum
+ltxtq_out(PG_FUNCTION_ARGS)
+{
+ ltxtquery *query = PG_GETARG_LTXTQUERY_P(0);
+ INFIX nrm;
+
+ if (query->size == 0)
+ ereport(ERROR,
+ (errcode(ERRCODE_SYNTAX_ERROR),
+ errmsg("syntax error"),
+ errdetail("Empty query.")));
+
+ nrm.curpol = GETQUERY(query);
+ nrm.buflen = 32;
+ nrm.cur = nrm.buf = (char *) palloc(sizeof(char) * nrm.buflen);
+ *(nrm.cur) = '\0';
+ nrm.op = GETOPERAND(query);
+ infix(&nrm, true);
+
+ PG_RETURN_POINTER(nrm.buf);
+}
+
+/*
+ * ltxtquery type send function
+ *
+ * The type is sent as text in binary mode, so this is almost the same
+ * as the output function, but it's prefixed with a version number so we
+ * can change the binary format sent in future if necessary. For now,
+ * only version 1 is supported.
+ */
+PG_FUNCTION_INFO_V1(ltxtq_send);
+Datum
+ltxtq_send(PG_FUNCTION_ARGS)
+{
+ ltxtquery *query = PG_GETARG_LTXTQUERY_P(0);
+ StringInfoData buf;
+ int version = 1;
+ INFIX nrm;
+
+ if (query->size == 0)
+ ereport(ERROR,
+ (errcode(ERRCODE_SYNTAX_ERROR),
+ errmsg("syntax error"),
+ errdetail("Empty query.")));
+
+ nrm.curpol = GETQUERY(query);
+ nrm.buflen = 32;
+ nrm.cur = nrm.buf = (char *) palloc(sizeof(char) * nrm.buflen);
+ *(nrm.cur) = '\0';
+ nrm.op = GETOPERAND(query);
+ infix(&nrm, true);
+
+ pq_begintypsend(&buf);
+ pq_sendint8(&buf, version);
+ pq_sendtext(&buf, nrm.buf, strlen(nrm.buf));
+ pfree(nrm.buf);
+
+ PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
+}
diff --git a/contrib/ltree/ltxtquery_op.c b/contrib/ltree/ltxtquery_op.c
new file mode 100644
index 0000000..002102c
--- /dev/null
+++ b/contrib/ltree/ltxtquery_op.c
@@ -0,0 +1,111 @@
+/*
+ * txtquery operations with ltree
+ * Teodor Sigaev <teodor@stack.net>
+ * contrib/ltree/ltxtquery_op.c
+ */
+#include "postgres.h"
+
+#include <ctype.h>
+
+#include "ltree.h"
+#include "miscadmin.h"
+
+PG_FUNCTION_INFO_V1(ltxtq_exec);
+PG_FUNCTION_INFO_V1(ltxtq_rexec);
+
+/*
+ * check for boolean condition
+ */
+bool
+ltree_execute(ITEM *curitem, void *checkval, bool calcnot, bool (*chkcond) (void *checkval, ITEM *val))
+{
+ /* since this function recurses, it could be driven to stack overflow */
+ check_stack_depth();
+
+ if (curitem->type == VAL)
+ return (*chkcond) (checkval, curitem);
+ else if (curitem->val == (int32) '!')
+ {
+ return calcnot ?
+ ((ltree_execute(curitem + 1, checkval, calcnot, chkcond)) ? false : true)
+ : true;
+ }
+ else if (curitem->val == (int32) '&')
+ {
+ if (ltree_execute(curitem + curitem->left, checkval, calcnot, chkcond))
+ return ltree_execute(curitem + 1, checkval, calcnot, chkcond);
+ else
+ return false;
+ }
+ else
+ { /* |-operator */
+ if (ltree_execute(curitem + curitem->left, checkval, calcnot, chkcond))
+ return true;
+ else
+ return ltree_execute(curitem + 1, checkval, calcnot, chkcond);
+ }
+}
+
+typedef struct
+{
+ ltree *node;
+ char *operand;
+} CHKVAL;
+
+static bool
+checkcondition_str(void *checkval, ITEM *val)
+{
+ ltree_level *level = LTREE_FIRST(((CHKVAL *) checkval)->node);
+ int tlen = ((CHKVAL *) checkval)->node->numlevel;
+ char *op = ((CHKVAL *) checkval)->operand + val->distance;
+ int (*cmpptr) (const char *, const char *, size_t);
+
+ cmpptr = (val->flag & LVAR_INCASE) ? ltree_strncasecmp : strncmp;
+ while (tlen > 0)
+ {
+ if (val->flag & LVAR_SUBLEXEME)
+ {
+ if (compare_subnode(level, op, val->length, cmpptr, (val->flag & LVAR_ANYEND)))
+ return true;
+ }
+ else if ((val->length == level->len ||
+ (level->len > val->length && (val->flag & LVAR_ANYEND))) &&
+ (*cmpptr) (op, level->name, val->length) == 0)
+ return true;
+
+ tlen--;
+ level = LEVEL_NEXT(level);
+ }
+
+ return false;
+}
+
+Datum
+ltxtq_exec(PG_FUNCTION_ARGS)
+{
+ ltree *val = PG_GETARG_LTREE_P(0);
+ ltxtquery *query = PG_GETARG_LTXTQUERY_P(1);
+ CHKVAL chkval;
+ bool result;
+
+ chkval.node = val;
+ chkval.operand = GETOPERAND(query);
+
+ result = ltree_execute(GETQUERY(query),
+ &chkval,
+ true,
+ checkcondition_str);
+
+ PG_FREE_IF_COPY(val, 0);
+ PG_FREE_IF_COPY(query, 1);
+ PG_RETURN_BOOL(result);
+}
+
+Datum
+ltxtq_rexec(PG_FUNCTION_ARGS)
+{
+ PG_RETURN_DATUM(DirectFunctionCall2(ltxtq_exec,
+ PG_GETARG_DATUM(1),
+ PG_GETARG_DATUM(0)
+ ));
+}
diff --git a/contrib/ltree/meson.build b/contrib/ltree/meson.build
new file mode 100644
index 0000000..44d0337
--- /dev/null
+++ b/contrib/ltree/meson.build
@@ -0,0 +1,52 @@
+# Copyright (c) 2022-2023, PostgreSQL Global Development Group
+
+ltree_sources = files(
+ '_ltree_gist.c',
+ '_ltree_op.c',
+ 'crc32.c',
+ 'lquery_op.c',
+ 'ltree_gist.c',
+ 'ltree_io.c',
+ 'ltree_op.c',
+ 'ltxtquery_io.c',
+ 'ltxtquery_op.c',
+)
+
+# .. so that includes of ltree/ltree.h work
+ltree_inc = include_directories('.', '../')
+
+if host_system == 'windows'
+ ltree_sources += rc_lib_gen.process(win32ver_rc, extra_args: [
+ '--NAME', 'ltree',
+ '--FILEDESC', 'ltree - hierarchical label data type',])
+endif
+
+ltree = shared_module('ltree',
+ ltree_sources,
+ kwargs: contrib_mod_args,
+)
+contrib_targets += ltree
+
+install_data(
+ 'ltree.control',
+ 'ltree--1.0--1.1.sql',
+ 'ltree--1.1--1.2.sql',
+ 'ltree--1.1.sql',
+ kwargs: contrib_data_args,
+)
+
+install_headers(
+ 'ltree.h',
+ install_dir: dir_include_extension / 'ltree',
+)
+
+tests += {
+ 'name': 'ltree',
+ 'sd': meson.current_source_dir(),
+ 'bd': meson.current_build_dir(),
+ 'regress': {
+ 'sql': [
+ 'ltree',
+ ],
+ },
+}
diff --git a/contrib/ltree/sql/ltree.sql b/contrib/ltree/sql/ltree.sql
new file mode 100644
index 0000000..402096f
--- /dev/null
+++ b/contrib/ltree/sql/ltree.sql
@@ -0,0 +1,411 @@
+CREATE EXTENSION ltree;
+
+-- max length for a label
+\set maxlbl 1000
+
+-- Check whether any of our opclasses fail amvalidate
+SELECT amname, opcname
+FROM pg_opclass opc LEFT JOIN pg_am am ON am.oid = opcmethod
+WHERE opc.oid >= 16384 AND NOT amvalidate(opc.oid);
+
+SELECT ''::ltree;
+SELECT '1'::ltree;
+SELECT '1.2'::ltree;
+SELECT '1.2.-3'::ltree;
+SELECT '1.2._3'::ltree;
+
+-- empty labels not allowed
+SELECT '.2.3'::ltree;
+SELECT '1..3'::ltree;
+SELECT '1.2.'::ltree;
+
+SELECT repeat('x', :maxlbl)::ltree;
+SELECT repeat('x', :maxlbl + 1)::ltree;
+
+SELECT ltree2text('1.2.3.34.sdf');
+SELECT text2ltree('1.2.3.34.sdf');
+
+SELECT subltree('Top.Child1.Child2',1,2);
+SELECT subpath('Top.Child1.Child2',1,2);
+SELECT subpath('Top.Child1.Child2',-1,1);
+SELECT subpath('Top.Child1.Child2',0,-2);
+SELECT subpath('Top.Child1.Child2',0,-1);
+SELECT subpath('Top.Child1.Child2',0,0);
+SELECT subpath('Top.Child1.Child2',1,0);
+SELECT subpath('Top.Child1.Child2',0);
+SELECT subpath('Top.Child1.Child2',1);
+
+
+SELECT index('1.2.3.4.5.6','1.2');
+SELECT index('a.1.2.3.4.5.6','1.2');
+SELECT index('a.1.2.3.4.5.6','1.2.3');
+SELECT index('a.1.2.3.4.5.6','1.2.3.j');
+SELECT index('a.1.2.3.4.5.6','1.2.3.j.4.5.5.5.5.5.5');
+SELECT index('a.1.2.3.4.5.6','1.2.3');
+SELECT index('a.1.2.3.4.5.6','6');
+SELECT index('a.1.2.3.4.5.6','6.1');
+SELECT index('a.1.2.3.4.5.6','5.6');
+SELECT index('0.1.2.3.5.4.5.6','5.6');
+SELECT index('0.1.2.3.5.4.5.6.8.5.6.8','5.6',3);
+SELECT index('0.1.2.3.5.4.5.6.8.5.6.8','5.6',6);
+SELECT index('0.1.2.3.5.4.5.6.8.5.6.8','5.6',7);
+SELECT index('0.1.2.3.5.4.5.6.8.5.6.8','5.6',-7);
+SELECT index('0.1.2.3.5.4.5.6.8.5.6.8','5.6',-4);
+SELECT index('0.1.2.3.5.4.5.6.8.5.6.8','5.6',-3);
+SELECT index('0.1.2.3.5.4.5.6.8.5.6.8','5.6',-2);
+SELECT index('0.1.2.3.5.4.5.6.8.5.6.8','5.6',-20000);
+
+
+SELECT 'Top.Child1.Child2'::ltree || 'Child3'::text;
+SELECT 'Top.Child1.Child2'::ltree || 'Child3'::ltree;
+SELECT 'Top_0'::ltree || 'Top.Child1.Child2'::ltree;
+SELECT 'Top.Child1.Child2'::ltree || ''::ltree;
+SELECT ''::ltree || 'Top.Child1.Child2'::ltree;
+
+SELECT lca('{la.2.3,1.2.3.4.5.6,""}') IS NULL;
+SELECT lca('{la.2.3,1.2.3.4.5.6}') IS NULL;
+SELECT lca('{1.la.2.3,1.2.3.4.5.6}');
+SELECT lca('{1.2.3,1.2.3.4.5.6}');
+SELECT lca('{1.2.3}');
+SELECT lca('{1}'), lca('{1}') IS NULL;
+SELECT lca('{}') IS NULL;
+SELECT lca('1.la.2.3','1.2.3.4.5.6');
+SELECT lca('1.2.3','1.2.3.4.5.6');
+SELECT lca('1.2.2.3','1.2.3.4.5.6');
+SELECT lca('1.2.2.3','1.2.3.4.5.6','');
+SELECT lca('1.2.2.3','1.2.3.4.5.6','2');
+SELECT lca('1.2.2.3','1.2.3.4.5.6','1');
+
+
+SELECT '1'::lquery;
+SELECT '4|3|2'::lquery;
+SELECT '1.2'::lquery;
+SELECT '1.4|3|2'::lquery;
+SELECT '1.0'::lquery;
+SELECT '4|3|2.0'::lquery;
+SELECT '1.2.0'::lquery;
+SELECT '1.4|3|2.0'::lquery;
+SELECT '1.*'::lquery;
+SELECT '4|3|2.*'::lquery;
+SELECT '1.2.*'::lquery;
+SELECT '1.4|3|2.*'::lquery;
+SELECT '*.1.*'::lquery;
+SELECT '*.4|3|2.*'::lquery;
+SELECT '*.1.2.*'::lquery;
+SELECT '*.1.4|3|2.*'::lquery;
+SELECT '1.*.4|3|2'::lquery;
+SELECT '1.*.4|3|2.0'::lquery;
+SELECT '1.*.4|3|2.*{1,4}'::lquery;
+SELECT '1.*.4|3|2.*{,4}'::lquery;
+SELECT '1.*.4|3|2.*{1,}'::lquery;
+SELECT '1.*.4|3|2.*{1}'::lquery;
+SELECT 'foo.bar{,}.!a*|b{1,}.c{,44}.d{3,4}'::lquery;
+SELECT 'foo*@@*'::lquery;
+SELECT 'qwerty%@*.tu'::lquery;
+
+-- empty labels not allowed
+SELECT '.2.3'::lquery;
+SELECT '1..3'::lquery;
+SELECT '1.2.'::lquery;
+SELECT '@.2.3'::lquery;
+SELECT '1.@.3'::lquery;
+SELECT '1.2.@'::lquery;
+SELECT '!.2.3'::lquery;
+SELECT '1.!.3'::lquery;
+SELECT '1.2.!'::lquery;
+SELECT '1.2.3|@.4'::lquery;
+
+SELECT (repeat('x', :maxlbl) || '*@@*')::lquery;
+SELECT (repeat('x', :maxlbl + 1) || '*@@*')::lquery;
+SELECT ('!' || repeat('x', :maxlbl))::lquery;
+SELECT ('!' || repeat('x', :maxlbl + 1))::lquery;
+
+SELECT nlevel('1.2.3.4');
+SELECT nlevel(('1' || repeat('.1', 65534))::ltree);
+SELECT nlevel(('1' || repeat('.1', 65535))::ltree);
+SELECT nlevel(('1' || repeat('.1', 65534))::ltree || '1');
+SELECT ('1' || repeat('.1', 65534))::lquery IS NULL;
+SELECT ('1' || repeat('.1', 65535))::lquery IS NULL;
+SELECT '*{65535}'::lquery;
+SELECT '*{65536}'::lquery;
+SELECT '*{,65534}'::lquery;
+SELECT '*{,65535}'::lquery;
+SELECT '*{,65536}'::lquery;
+SELECT '*{4,3}'::lquery;
+
+SELECT '1.2'::ltree < '2.2'::ltree;
+SELECT '1.2'::ltree <= '2.2'::ltree;
+SELECT '2.2'::ltree = '2.2'::ltree;
+SELECT '3.2'::ltree >= '2.2'::ltree;
+SELECT '3.2'::ltree > '2.2'::ltree;
+
+SELECT '1.2.3'::ltree @> '1.2.3.4'::ltree;
+SELECT '1.2.3.4'::ltree @> '1.2.3.4'::ltree;
+SELECT '1.2.3.4.5'::ltree @> '1.2.3.4'::ltree;
+SELECT '1.3.3'::ltree @> '1.2.3.4'::ltree;
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a.b.c.d.e';
+SELECT 'a.b.c.d.e'::ltree ~ 'A.b.c.d.e';
+SELECT 'a.b.c.d.e'::ltree ~ 'A@.b.c.d.e';
+SELECT 'aa.b.c.d.e'::ltree ~ 'A@.b.c.d.e';
+SELECT 'aa.b.c.d.e'::ltree ~ 'A*.b.c.d.e';
+SELECT 'aa.b.c.d.e'::ltree ~ 'A*@.b.c.d.e';
+SELECT 'aa.b.c.d.e'::ltree ~ 'A*@|g.b.c.d.e';
+SELECT 'g.b.c.d.e'::ltree ~ 'A*@|g.b.c.d.e';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.b.c.d.e';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*.e';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{3}.e';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{2}.e';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{4}.e';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{,4}.e';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{2,}.e';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{2,4}.e';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{2,3}.e';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{2,3}';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{2,4}';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{2,5}';
+SELECT 'a.b.c.d.e'::ltree ~ '*{2,3}.e';
+SELECT 'a.b.c.d.e'::ltree ~ '*{2,4}.e';
+SELECT 'a.b.c.d.e'::ltree ~ '*{2,5}.e';
+SELECT 'a.b.c.d.e'::ltree ~ '*.e';
+SELECT 'a.b.c.d.e'::ltree ~ '*.e.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*.d.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*.a.*.d.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*.!d.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*.!d';
+SELECT 'a.b.c.d.e'::ltree ~ '!d.*';
+SELECT 'a.b.c.d.e'::ltree ~ '!a.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*.!e';
+SELECT 'a.b.c.d.e'::ltree ~ '*.!e.*';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*.!e';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*.!d';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*.!d.*';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*.!f.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*.a.*.!f.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*.a.*.!d.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*.a.!d.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*.a.!d';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.!d.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*.a.*.!d.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*.!b.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*.!b.c.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*.!b.*.c.*';
+SELECT 'a.b.c.d.e'::ltree ~ '!b.*.c.*';
+SELECT 'a.b.c.d.e'::ltree ~ '!b.b.*';
+SELECT 'a.b.c.d.e'::ltree ~ '!b.*.e';
+SELECT 'a.b.c.d.e'::ltree ~ '!b.!c.*.e';
+SELECT 'a.b.c.d.e'::ltree ~ '!b.*.!c.*.e';
+SELECT 'a.b.c.d.e'::ltree ~ '*{2}.!b.*.!c.*.e';
+SELECT 'a.b.c.d.e'::ltree ~ '*{1}.!b.*.!c.*.e';
+SELECT 'a.b.c.d.e'::ltree ~ '*{1}.!b.*{1}.!c.*.e';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.!b.*{1}.!c.*.e';
+SELECT 'a.b.c.d.e'::ltree ~ '!b.*{1}.!c.*.e';
+SELECT 'a.b.c.d.e'::ltree ~ '*.!b.*{1}.!c.*.e';
+SELECT 'a.b.c.d.e'::ltree ~ '*.!b.*.!c.*.e';
+SELECT 'a.b.c.d.e'::ltree ~ '!b.!c.*';
+SELECT 'a.b.c.d.e'::ltree ~ '!b.*.!c.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*{2}.!b.*.!c.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*{1}.!b.*.!c.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*{1}.!b.*{1}.!c.*';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.!b.*{1}.!c.*';
+SELECT 'a.b.c.d.e'::ltree ~ '!b.*{1}.!c.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*.!b.*{1}.!c.*';
+SELECT 'a.b.c.d.e'::ltree ~ '*.!b.*.!c.*';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{2}.*{2}';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{1}.*{2}.e';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{1}.*{4}';
+SELECT 'a.b.c.d.e'::ltree ~ 'a.*{5}.*';
+SELECT '5.0.1.0'::ltree ~ '5.!0.!0.0';
+SELECT 'a.b'::ltree ~ '!a.!a';
+
+SELECT 'a.b.c.d.e'::ltree ~ 'a{,}';
+SELECT 'a.b.c.d.e'::ltree ~ 'a{1,}.*';
+SELECT 'a.b.c.d.e'::ltree ~ 'a{,}.!a{,}';
+SELECT 'a.b.c.d.a'::ltree ~ 'a{,}.!a{,}';
+SELECT 'a.b.c.d.a'::ltree ~ 'a{,2}.!a{1,}';
+SELECT 'a.b.c.d.e'::ltree ~ 'a{,2}.!a{1,}';
+SELECT 'a.b.c.d.e'::ltree ~ '!x{,}';
+SELECT 'a.b.c.d.e'::ltree ~ '!c{,}';
+SELECT 'a.b.c.d.e'::ltree ~ '!c{0,3}.!a{2,}';
+SELECT 'a.b.c.d.e'::ltree ~ '!c{0,3}.!d{2,}.*';
+
+SELECT 'QWER_TY'::ltree ~ 'q%@*';
+SELECT 'QWER_TY'::ltree ~ 'q%@*%@*';
+SELECT 'QWER_TY'::ltree ~ 'Q_t%@*';
+SELECT 'QWER_GY'::ltree ~ 'q_t%@*';
+
+--ltxtquery
+SELECT '!tree & aWdf@*'::ltxtquery;
+SELECT 'tree & aw_qw%*'::ltxtquery;
+SELECT 'tree & aw-qw%*'::ltxtquery;
+
+SELECT 'ltree.awdfg'::ltree @ '!tree & aWdf@*'::ltxtquery;
+SELECT 'tree.awdfg'::ltree @ '!tree & aWdf@*'::ltxtquery;
+SELECT 'tree.awdfg'::ltree @ '!tree | aWdf@*'::ltxtquery;
+SELECT 'tree.awdfg'::ltree @ 'tree | aWdf@*'::ltxtquery;
+SELECT 'tree.awdfg'::ltree @ 'tree & aWdf@*'::ltxtquery;
+SELECT 'tree.awdfg'::ltree @ 'tree & aWdf@'::ltxtquery;
+SELECT 'tree.awdfg'::ltree @ 'tree & aWdf*'::ltxtquery;
+SELECT 'tree.awdfg'::ltree @ 'tree & aWdf'::ltxtquery;
+SELECT 'tree.awdfg'::ltree @ 'tree & awdf*'::ltxtquery;
+SELECT 'tree.awdfg'::ltree @ 'tree & aWdfg@'::ltxtquery;
+SELECT 'tree.awdfg_qwerty'::ltree @ 'tree & aw_qw%*'::ltxtquery;
+SELECT 'tree.awdfg_qwerty'::ltree @ 'tree & aw_rw%*'::ltxtquery;
+
+--arrays
+
+SELECT '{1.2.3}'::ltree[] @> '1.2.3.4';
+SELECT '{1.2.3.4}'::ltree[] @> '1.2.3.4';
+SELECT '{1.2.3.4.5}'::ltree[] @> '1.2.3.4';
+SELECT '{1.3.3}'::ltree[] @> '1.2.3.4';
+SELECT '{5.67.8, 1.2.3}'::ltree[] @> '1.2.3.4';
+SELECT '{5.67.8, 1.2.3.4}'::ltree[] @> '1.2.3.4';
+SELECT '{5.67.8, 1.2.3.4.5}'::ltree[] @> '1.2.3.4';
+SELECT '{5.67.8, 1.3.3}'::ltree[] @> '1.2.3.4';
+SELECT '{1.2.3, 7.12.asd}'::ltree[] @> '1.2.3.4';
+SELECT '{1.2.3.4, 7.12.asd}'::ltree[] @> '1.2.3.4';
+SELECT '{1.2.3.4.5, 7.12.asd}'::ltree[] @> '1.2.3.4';
+SELECT '{1.3.3, 7.12.asd}'::ltree[] @> '1.2.3.4';
+SELECT '{ltree.asd, tree.awdfg}'::ltree[] @ 'tree & aWdfg@'::ltxtquery;
+SELECT '{j.k.l.m, g.b.c.d.e}'::ltree[] ~ 'A*@|g.b.c.d.e';
+SELECT 'a.b.c.d.e'::ltree ? '{A.b.c.d.e}';
+SELECT 'a.b.c.d.e'::ltree ? '{a.b.c.d.e}';
+SELECT 'a.b.c.d.e'::ltree ? '{A.b.c.d.e, a.*}';
+SELECT '{a.b.c.d.e,B.df}'::ltree[] ? '{A.b.c.d.e}';
+SELECT '{a.b.c.d.e,B.df}'::ltree[] ? '{A.b.c.d.e,*.df}';
+
+--extractors
+SELECT ('{3456,1.2.3.34}'::ltree[] ?@> '1.2.3.4') is null;
+SELECT '{3456,1.2.3}'::ltree[] ?@> '1.2.3.4';
+SELECT '{3456,1.2.3.4}'::ltree[] ?<@ '1.2.3';
+SELECT ('{3456,1.2.3.4}'::ltree[] ?<@ '1.2.5') is null;
+SELECT '{ltree.asd, tree.awdfg}'::ltree[] ?@ 'tree & aWdfg@'::ltxtquery;
+SELECT '{j.k.l.m, g.b.c.d.e}'::ltree[] ?~ 'A*@|g.b.c.d.e';
+
+CREATE TABLE ltreetest (t ltree);
+\copy ltreetest FROM 'data/ltree.data'
+
+SELECT * FROM ltreetest WHERE t < '12.3' order by t asc;
+SELECT * FROM ltreetest WHERE t <= '12.3' order by t asc;
+SELECT * FROM ltreetest WHERE t = '12.3' order by t asc;
+SELECT * FROM ltreetest WHERE t >= '12.3' order by t asc;
+SELECT * FROM ltreetest WHERE t > '12.3' order by t asc;
+SELECT * FROM ltreetest WHERE t @> '1.1.1' order by t asc;
+SELECT * FROM ltreetest WHERE t <@ '1.1.1' order by t asc;
+SELECT * FROM ltreetest WHERE t @ '23 & 1' order by t asc;
+SELECT * FROM ltreetest WHERE t ~ '1.1.1.*' order by t asc;
+SELECT * FROM ltreetest WHERE t ~ '*.1' order by t asc;
+SELECT * FROM ltreetest WHERE t ~ '23.*{1}.1' order by t asc;
+SELECT * FROM ltreetest WHERE t ~ '23.*.1' order by t asc;
+SELECT * FROM ltreetest WHERE t ~ '23.*.2' order by t asc;
+SELECT * FROM ltreetest WHERE t ? '{23.*.1,23.*.2}' order by t asc;
+
+create unique index tstidx on ltreetest (t);
+set enable_seqscan=off;
+
+SELECT * FROM ltreetest WHERE t < '12.3' order by t asc;
+SELECT * FROM ltreetest WHERE t <= '12.3' order by t asc;
+SELECT * FROM ltreetest WHERE t = '12.3' order by t asc;
+SELECT * FROM ltreetest WHERE t >= '12.3' order by t asc;
+SELECT * FROM ltreetest WHERE t > '12.3' order by t asc;
+
+drop index tstidx;
+create index tstidx on ltreetest using gist (t);
+set enable_seqscan=off;
+
+SELECT * FROM ltreetest WHERE t < '12.3' order by t asc;
+SELECT * FROM ltreetest WHERE t <= '12.3' order by t asc;
+SELECT * FROM ltreetest WHERE t = '12.3' order by t asc;
+SELECT * FROM ltreetest WHERE t >= '12.3' order by t asc;
+SELECT * FROM ltreetest WHERE t > '12.3' order by t asc;
+SELECT * FROM ltreetest WHERE t @> '1.1.1' order by t asc;
+SELECT * FROM ltreetest WHERE t <@ '1.1.1' order by t asc;
+SELECT * FROM ltreetest WHERE t @ '23 & 1' order by t asc;
+SELECT * FROM ltreetest WHERE t ~ '1.1.1.*' order by t asc;
+SELECT * FROM ltreetest WHERE t ~ '*.1' order by t asc;
+SELECT * FROM ltreetest WHERE t ~ '23.*{1}.1' order by t asc;
+SELECT * FROM ltreetest WHERE t ~ '23.*.1' order by t asc;
+SELECT * FROM ltreetest WHERE t ~ '23.*.2' order by t asc;
+SELECT * FROM ltreetest WHERE t ? '{23.*.1,23.*.2}' order by t asc;
+
+drop index tstidx;
+create index tstidx on ltreetest using gist (t gist_ltree_ops(siglen=0));
+create index tstidx on ltreetest using gist (t gist_ltree_ops(siglen=2025));
+create index tstidx on ltreetest using gist (t gist_ltree_ops(siglen=2028));
+create index tstidx on ltreetest using gist (t gist_ltree_ops(siglen=2019));
+create index tstidx on ltreetest using gist (t gist_ltree_ops(siglen=2024));
+
+SELECT count(*) FROM ltreetest WHERE t < '12.3';
+SELECT count(*) FROM ltreetest WHERE t <= '12.3';
+SELECT count(*) FROM ltreetest WHERE t = '12.3';
+SELECT count(*) FROM ltreetest WHERE t >= '12.3';
+SELECT count(*) FROM ltreetest WHERE t > '12.3';
+SELECT count(*) FROM ltreetest WHERE t @> '1.1.1';
+SELECT count(*) FROM ltreetest WHERE t <@ '1.1.1';
+SELECT count(*) FROM ltreetest WHERE t @ '23 & 1';
+SELECT count(*) FROM ltreetest WHERE t ~ '1.1.1.*';
+SELECT count(*) FROM ltreetest WHERE t ~ '*.1';
+SELECT count(*) FROM ltreetest WHERE t ~ '23.*{1}.1';
+SELECT count(*) FROM ltreetest WHERE t ~ '23.*.1';
+SELECT count(*) FROM ltreetest WHERE t ~ '23.*.2';
+SELECT count(*) FROM ltreetest WHERE t ? '{23.*.1,23.*.2}';
+
+create table _ltreetest (t ltree[]);
+\copy _ltreetest FROM 'data/_ltree.data'
+
+SELECT count(*) FROM _ltreetest WHERE t @> '1.1.1' ;
+SELECT count(*) FROM _ltreetest WHERE t <@ '1.1.1' ;
+SELECT count(*) FROM _ltreetest WHERE t @ '23 & 1' ;
+SELECT count(*) FROM _ltreetest WHERE t ~ '1.1.1.*' ;
+SELECT count(*) FROM _ltreetest WHERE t ~ '*.1' ;
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*{1}.1' ;
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*.1' ;
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*.2' ;
+SELECT count(*) FROM _ltreetest WHERE t ? '{23.*.1,23.*.2}' ;
+
+create index _tstidx on _ltreetest using gist (t);
+set enable_seqscan=off;
+
+SELECT count(*) FROM _ltreetest WHERE t @> '1.1.1' ;
+SELECT count(*) FROM _ltreetest WHERE t <@ '1.1.1' ;
+SELECT count(*) FROM _ltreetest WHERE t @ '23 & 1' ;
+SELECT count(*) FROM _ltreetest WHERE t ~ '1.1.1.*' ;
+SELECT count(*) FROM _ltreetest WHERE t ~ '*.1' ;
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*{1}.1' ;
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*.1' ;
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*.2' ;
+SELECT count(*) FROM _ltreetest WHERE t ? '{23.*.1,23.*.2}' ;
+
+drop index _tstidx;
+create index _tstidx on _ltreetest using gist (t gist__ltree_ops(siglen=0));
+create index _tstidx on _ltreetest using gist (t gist__ltree_ops(siglen=2025));
+create index _tstidx on _ltreetest using gist (t gist__ltree_ops(siglen=2024));
+
+SELECT count(*) FROM _ltreetest WHERE t @> '1.1.1' ;
+SELECT count(*) FROM _ltreetest WHERE t <@ '1.1.1' ;
+SELECT count(*) FROM _ltreetest WHERE t @ '23 & 1' ;
+SELECT count(*) FROM _ltreetest WHERE t ~ '1.1.1.*' ;
+SELECT count(*) FROM _ltreetest WHERE t ~ '*.1' ;
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*{1}.1' ;
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*.1' ;
+SELECT count(*) FROM _ltreetest WHERE t ~ '23.*.2' ;
+SELECT count(*) FROM _ltreetest WHERE t ? '{23.*.1,23.*.2}' ;
+
+-- test non-error-throwing input
+
+SELECT str as "value", typ as "type",
+ pg_input_is_valid(str,typ) as ok,
+ errinfo.sql_error_code,
+ errinfo.message,
+ errinfo.detail,
+ errinfo.hint
+FROM (VALUES ('.2.3', 'ltree'),
+ ('1.2.', 'ltree'),
+ ('1.2.3','ltree'),
+ ('@.2.3','lquery'),
+ (' 2.3', 'lquery'),
+ ('1.2.3','lquery'),
+ ('$tree & aWdf@*','ltxtquery'),
+ ('!tree & aWdf@*','ltxtquery'))
+ AS a(str,typ),
+ LATERAL pg_input_error_info(a.str, a.typ) as errinfo;