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Diffstat (limited to '')
33 files changed, 16257 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..b16a566 --- /dev/null +++ b/contrib/ltree/Makefile @@ -0,0 +1,34 @@ +# 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 +PG_CPPFLAGS = -DLOWER_NODE + +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..72516c3 --- /dev/null +++ b/contrib/ltree/_ltree_gist.c @@ -0,0 +1,555 @@ +/* + * contrib/ltree/_ltree_gist.c + * + * + * GiST support for ltree[] + * Teodor Sigaev <teodor@stack.net> + */ +#include "postgres.h" + +#include "access/gist.h" +#include "access/reloptions.h" +#include "access/stratnum.h" +#include "crc32.h" +#include "ltree.h" +#include "port/pg_bitutils.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((void *) 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((void *) 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((void *) 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..9bb6bca --- /dev/null +++ b/contrib/ltree/_ltree_op.c @@ -0,0 +1,325 @@ +/* + * contrib/ltree/_ltree_op.c + * + * + * op function for ltree[] + * Teodor Sigaev <teodor@stack.net> + */ +#include "postgres.h" + +#include <ctype.h> + +#include "ltree.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..8fed334 --- /dev/null +++ b/contrib/ltree/crc32.c @@ -0,0 +1,39 @@ +/* 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" + +#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, 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+ 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', 255)::ltree; + repeat +----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx +(1 row) + +SELECT repeat('x', 256)::ltree; +ERROR: label string is too long +DETAIL: Label length is 256, must be at most 255, at character 257. +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', 255) || '*@@*')::lquery; + lquery +------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx@* +(1 row) + +SELECT (repeat('x', 256) || '*@@*')::lquery; +ERROR: label string is too long +DETAIL: Label length is 256, must be at most 255, at character 257. +SELECT ('!' || repeat('x', 255))::lquery; + lquery +------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ + !xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx +(1 row) + +SELECT ('!' || repeat('x', 256))::lquery; +ERROR: label string is too long +DETAIL: Label length is 256, must be at most 255, at character 258. +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 '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 + 1.1.7.32.11.22 + 1.10.21 + 1.10.23.25.5.11 + 1.10.4.18.22.23.24 + 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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 + 1.19.22.11.14.7.32.23.19.14 + 1.21.28.4.23 + 1.26.15.23.5.31.29.11.19.28.1 + 1.27.22.23.2.26.32.17.7.9 + 10.12.9.6.6.26.14.8.23.1.25 + 12.27.23.32.1.1.9.29.13 + 14.1.15.25.27.23.25.26.28.10 + 14.27.29.23.4.1.17.32.6.25.22 + 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 + 23.12.1.5.32.25.8.24.1.25 + 23.12.32.22.19.1.22.4 + 23.17.22.1.23.4.29.32.4.1 + 23.17.25.4.1.16.29.10 + 23.19.17.31.29.13.1.12.5.25 + 23.22.10.1.14.24 + 23.28.1 + 23.3.32.21.5.14.10.17.1 + 27.29.1.5.30.6.22.16.23.2.28 + 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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 "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 < '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) + diff --git a/contrib/ltree/lquery_op.c b/contrib/ltree/lquery_op.c new file mode 100644 index 0000000..ef86046 --- /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/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; + int charlen; + + while (start < end && (charlen = pg_mblen(start)) == 1 && t_iseq(start, '_')) + start += charlen; + + ptr = start; + if (ptr >= end) + return NULL; + + while (ptr < end && !((charlen = pg_mblen(ptr)) == 1 && t_iseq(ptr, '_'))) + ptr += charlen; + + *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..dc68a0c --- /dev/null +++ b/contrib/ltree/ltree.h @@ -0,0 +1,301 @@ +/* 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 255 characters (not bytes), while using + * uint16 fields to hold the byte length. + */ +#define LTREE_LABEL_MAX_CHARS 255 + +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 + +#define ISALNUM(x) ( t_isalpha(x) || t_isdigit(x) || ( pg_mblen(x) == 1 && 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 */ +Datum ltree_isparent(PG_FUNCTION_ARGS); +Datum ltree_risparent(PG_FUNCTION_ARGS); +Datum ltq_regex(PG_FUNCTION_ARGS); +Datum ltq_rregex(PG_FUNCTION_ARGS); +Datum lt_q_regex(PG_FUNCTION_ARGS); +Datum lt_q_rregex(PG_FUNCTION_ARGS); +Datum ltxtq_exec(PG_FUNCTION_ARGS); +Datum ltxtq_rexec(PG_FUNCTION_ARGS); +Datum _ltq_regex(PG_FUNCTION_ARGS); +Datum _ltq_rregex(PG_FUNCTION_ARGS); +Datum _lt_q_regex(PG_FUNCTION_ARGS); +Datum _lt_q_rregex(PG_FUNCTION_ARGS); +Datum _ltxtq_exec(PG_FUNCTION_ARGS); +Datum _ltxtq_rexec(PG_FUNCTION_ARGS); +Datum _ltree_isparent(PG_FUNCTION_ARGS); +Datum _ltree_risparent(PG_FUNCTION_ARGS); + +/* Concatenation functions */ +Datum ltree_addltree(PG_FUNCTION_ARGS); +Datum ltree_addtext(PG_FUNCTION_ARGS); +Datum ltree_textadd(PG_FUNCTION_ARGS); + +/* Util function */ +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 *q, 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 SIGLEN_MAX GISTMaxIndexKeySize +#define SIGLEN_DEFAULT (2 * sizeof(int32)) +#define BITBYTE 8 +#define SIGLEN (sizeof(int32) * SIGLENINT) +#define SIGLENBIT(siglen) ((siglen) * BITBYTE) + +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..6cf181b --- /dev/null +++ b/contrib/ltree/ltree_gist.c @@ -0,0 +1,731 @@ +/* + * 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" + +#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("ltree_gist_in() not implemented"))); + PG_RETURN_DATUM(0); +} + +Datum +ltree_gist_out(PG_FUNCTION_ARGS) +{ + ereport(ERROR, + (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), + errmsg("ltree_gist_out() not implemented"))); + PG_RETURN_DATUM(0); +} + +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_ASIGLEN(); + + *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))) ? true : false; + 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_ASIGLEN(); + 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_ASIGLEN(); + 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_ASIGLEN(); + 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((void *) &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_ASIGLEN(); + 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); +} + +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", + SIGLEN_DEFAULT, 1, SIGLEN_MAX, + offsetof(LtreeGistOptions, siglen)); + + PG_RETURN_VOID(); +} diff --git a/contrib/ltree/ltree_io.c b/contrib/ltree/ltree_io.c new file mode 100644 index 0000000..15115cb --- /dev/null +++ b/contrib/ltree/ltree_io.c @@ -0,0 +1,797 @@ +/* + * 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" + + +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 void finish_nodeitem(nodeitem *lptr, const char *ptr, + bool is_lquery, int pos); + + +/* + * expects a null terminated string + * returns an ltree + */ +static ltree * +parse_ltree(const char *buf) +{ + 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 ereport(ERROR, \ + 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) + ereport(ERROR, + (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 (ISALNUM(ptr)) + { + lptr->start = ptr; + lptr->wlen = 0; + state = LTPRS_WAITDELIM; + } + else + UNCHAR; + break; + case LTPRS_WAITDELIM: + if (t_iseq(ptr, '.')) + { + finish_nodeitem(lptr, ptr, false, pos); + totallen += MAXALIGN(lptr->len + LEVEL_HDRSIZE); + lptr++; + state = LTPRS_WAITNAME; + } + else if (!ISALNUM(ptr)) + UNCHAR; + break; + default: + elog(ERROR, "internal error in ltree parser"); + } + + ptr += charlen; + lptr->wlen++; + pos++; + } + + if (state == LTPRS_WAITDELIM) + { + finish_nodeitem(lptr, ptr, false, pos); + totallen += MAXALIGN(lptr->len + LEVEL_HDRSIZE); + lptr++; + } + else if (!(state == LTPRS_WAITNAME && lptr == list)) + ereport(ERROR, + (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); + + PG_RETURN_POINTER(parse_ltree(buf)); +} + +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); + 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) +{ + 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 ereport(ERROR, \ + 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) + ereport(ERROR, + (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 (ISALNUM(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 (ISALNUM(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, '|')) + { + finish_nodeitem(lptr, ptr, true, pos); + state = LQPRS_WAITVAR; + } + else if (t_iseq(ptr, '{')) + { + finish_nodeitem(lptr, ptr, true, pos); + curqlevel->flag |= LQL_COUNT; + state = LQPRS_WAITFNUM; + } + else if (t_iseq(ptr, '.')) + { + finish_nodeitem(lptr, ptr, true, pos); + state = LQPRS_WAITLEVEL; + curqlevel = NEXTLEV(curqlevel); + } + else if (ISALNUM(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) + ereport(ERROR, + (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) + ereport(ERROR, + (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) + ereport(ERROR, + (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) + finish_nodeitem(lptr, ptr, true, pos); + else if (state == LQPRS_WAITOPEN) + curqlevel->high = LTREE_MAX_LEVELS; + else if (state != LQPRS_WAITEND) + ereport(ERROR, + (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 void +finish_nodeitem(nodeitem *lptr, const char *ptr, bool is_lquery, int pos) +{ + 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) + ereport(ERROR, + (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) + ereport(ERROR, + (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))); +} + +/* + * 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); + + PG_RETURN_POINTER(parse_lquery(buf)); +} + +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); + 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..778dbf1 --- /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) ? true : false); +} + +Datum +ltree_le(PG_FUNCTION_ARGS) +{ + RUNCMP; + PG_RETURN_BOOL((res <= 0) ? true : false); +} + +Datum +ltree_eq(PG_FUNCTION_ARGS) +{ + RUNCMP; + PG_RETURN_BOOL((res == 0) ? true : false); +} + +Datum +ltree_ge(PG_FUNCTION_ARGS) +{ + RUNCMP; + PG_RETURN_BOOL((res >= 0) ? true : false); +} + +Datum +ltree_gt(PG_FUNCTION_ARGS) +{ + RUNCMP; + PG_RETURN_BOOL((res > 0) ? true : false); +} + +Datum +ltree_ne(PG_FUNCTION_ARGS) +{ + RUNCMP; + PG_RETURN_BOOL((res != 0) ? true : false); +} + +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..d967f92 --- /dev/null +++ b/contrib/ltree/ltxtquery_io.c @@ -0,0 +1,600 @@ +/* + * 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" + + +/* 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; + /* 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 + */ +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 (charlen == 1 && t_iseq(state->buf, '!')) + { + (state->buf)++; + *val = (int32) '!'; + return OPR; + } + else if (charlen == 1 && t_iseq(state->buf, '(')) + { + state->count++; + (state->buf)++; + return OPEN; + } + else if (ISALNUM(state->buf)) + { + state->state = INOPERAND; + *strval = state->buf; + *lenval = charlen; + *flag = 0; + } + else if (!t_isspace(state->buf)) + ereport(ERROR, + (errcode(ERRCODE_SYNTAX_ERROR), + errmsg("operand syntax error"))); + break; + case INOPERAND: + if (ISALNUM(state->buf)) + { + if (*flag) + ereport(ERROR, + (errcode(ERRCODE_SYNTAX_ERROR), + errmsg("modifiers syntax error"))); + *lenval += charlen; + } + else if (charlen == 1 && t_iseq(state->buf, '%')) + *flag |= LVAR_SUBLEXEME; + else if (charlen == 1 && t_iseq(state->buf, '@')) + *flag |= LVAR_INCASE; + else if (charlen == 1 && t_iseq(state->buf, '*')) + *flag |= LVAR_ANYEND; + else + { + state->state = WAITOPERATOR; + return VAL; + } + break; + case WAITOPERATOR: + if (charlen == 1 && (t_iseq(state->buf, '&') || t_iseq(state->buf, '|'))) + { + state->state = WAITOPERAND; + *val = (int32) *(state->buf); + (state->buf)++; + return OPR; + } + else if (charlen == 1 && 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 (charlen == 1 && !t_iseq(state->buf, ' ')) + return ERR; + break; + default: + return ERR; + break; + } + + state->buf += charlen; + } +} + +/* + * push new one in polish notation reverse view + */ +static void +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) + ereport(ERROR, + (errcode(ERRCODE_INVALID_PARAMETER_VALUE), + errmsg("value is too big"))); + if (lenval > 0xff) + ereport(ERROR, + (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++; +} + +/* + * This function is used for query text parsing + */ +static void +pushval_asis(QPRS_STATE *state, int type, char *strval, int lenval, uint16 flag) +{ + if (lenval > 0xffff) + ereport(ERROR, + (errcode(ERRCODE_INVALID_PARAMETER_VALUE), + errmsg("word is too long"))); + + pushquery(state, type, ltree_crc32_sz(strval, lenval), + state->curop - state->op, lenval, flag); + + while (state->curop - state->op + lenval + 1 >= state->lenop) + { + int32 tmp = state->curop - state->op; + + state->lenop *= 2; + state->op = (char *) repalloc((void *) state->op, state->lenop); + state->curop = state->op + tmp; + } + memcpy((void *) state->curop, (void *) strval, lenval); + state->curop += lenval; + *(state->curop) = '\0'; + state->curop++; + state->sumlen += lenval + 1; +} + +#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: + pushval_asis(state, VAL, strval, lenval, flag); + while (lenstack && (stack[lenstack - 1] == (int32) '&' || + stack[lenstack - 1] == (int32) '!')) + { + lenstack--; + pushquery(state, OPR, stack[lenstack], 0, 0, 0); + } + break; + case OPR: + if (lenstack && val == (int32) '|') + pushquery(state, OPR, val, 0, 0, 0); + 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--; + pushquery(state, OPR, stack[lenstack], 0, 0, 0); + } + break; + case CLOSE: + while (lenstack) + { + lenstack--; + pushquery(state, OPR, stack[lenstack], 0, 0, 0); + }; + return END; + break; + case ERR: + default: + ereport(ERROR, + (errcode(ERRCODE_SYNTAX_ERROR), + errmsg("syntax error"))); + + return ERR; + + } + } + while (lenstack) + { + lenstack--; + pushquery(state, OPR, stack[lenstack], 0, 0, 0); + }; + 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) +{ + 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; + + /* 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) */ + makepol(&state); + if (!state.num) + ereport(ERROR, + (errcode(ERRCODE_SYNTAX_ERROR), + errmsg("syntax error"), + errdetail("Empty query."))); + + if (LTXTQUERY_TOO_BIG(state.num, state.sumlen)) + ereport(ERROR, + (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((void *) GETOPERAND(query), (void *) 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) +{ + PG_RETURN_POINTER(queryin((char *) PG_GETARG_POINTER(0))); +} + +/* + * 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); + 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/sql/ltree.sql b/contrib/ltree/sql/ltree.sql new file mode 100644 index 0000000..bf733ed --- /dev/null +++ b/contrib/ltree/sql/ltree.sql @@ -0,0 +1,384 @@ +CREATE EXTENSION ltree; + +-- 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; + +-- empty labels not allowed +SELECT '.2.3'::ltree; +SELECT '1..3'::ltree; +SELECT '1.2.'::ltree; + +SELECT repeat('x', 255)::ltree; +SELECT repeat('x', 256)::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', 255) || '*@@*')::lquery; +SELECT (repeat('x', 256) || '*@@*')::lquery; +SELECT ('!' || repeat('x', 255))::lquery; +SELECT ('!' || repeat('x', 256))::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 '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=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}' ; diff --git a/contrib/ltree_plpython/.gitignore b/contrib/ltree_plpython/.gitignore new file mode 100644 index 0000000..ce6fab9 --- /dev/null +++ b/contrib/ltree_plpython/.gitignore @@ -0,0 +1,6 @@ +# Generated subdirectories +/expected/python3/ +/log/ +/results/ +/sql/python3/ +/tmp_check/ diff --git a/contrib/ltree_plpython/Makefile b/contrib/ltree_plpython/Makefile new file mode 100644 index 0000000..12a0146 --- /dev/null +++ b/contrib/ltree_plpython/Makefile @@ -0,0 +1,45 @@ +# contrib/ltree_plpython/Makefile + +MODULE_big = ltree_plpython$(python_majorversion) +OBJS = \ + $(WIN32RES) \ + ltree_plpython.o +PGFILEDESC = "ltree_plpython - ltree transform for plpython" + +EXTENSION = ltree_plpythonu ltree_plpython2u ltree_plpython3u +DATA = ltree_plpythonu--1.0.sql ltree_plpython2u--1.0.sql ltree_plpython3u--1.0.sql + +REGRESS = ltree_plpython +REGRESS_PLPYTHON3_MANGLE := $(REGRESS) + +PG_CPPFLAGS = $(python_includespec) -DPLPYTHON_LIBNAME='"plpython$(python_majorversion)"' + +ifdef USE_PGXS +PG_CPPFLAGS += -I$(includedir_server)/extension +PG_CONFIG = pg_config +PGXS := $(shell $(PG_CONFIG) --pgxs) +include $(PGXS) +else +PG_CPPFLAGS += -I$(top_srcdir)/src/pl/plpython -I$(top_srcdir)/contrib +subdir = contrib/ltree_plpython +top_builddir = ../.. +include $(top_builddir)/src/Makefile.global +include $(top_srcdir)/contrib/contrib-global.mk +endif + +# We must link libpython explicitly +ifeq ($(PORTNAME), win32) +# ... see silliness in plpython Makefile ... +SHLIB_LINK_INTERNAL += $(sort $(wildcard ../../src/pl/plpython/libpython*.a)) +else +rpathdir = $(python_libdir) +SHLIB_LINK += $(python_libspec) $(python_additional_libs) +endif + +REGRESS_OPTS += --load-extension=ltree +ifeq ($(python_majorversion),2) +REGRESS_OPTS += --load-extension=plpythonu --load-extension=ltree_plpythonu +endif +EXTRA_INSTALL += contrib/ltree + +include $(top_srcdir)/src/pl/plpython/regress-python3-mangle.mk diff --git a/contrib/ltree_plpython/expected/ltree_plpython.out b/contrib/ltree_plpython/expected/ltree_plpython.out new file mode 100644 index 0000000..f28897f --- /dev/null +++ b/contrib/ltree_plpython/expected/ltree_plpython.out @@ -0,0 +1,43 @@ +CREATE EXTENSION ltree_plpython2u CASCADE; +NOTICE: installing required extension "plpython2u" +CREATE FUNCTION test1(val ltree) RETURNS int +LANGUAGE plpythonu +TRANSFORM FOR TYPE ltree +AS $$ +plpy.info(repr(val)) +return len(val) +$$; +SELECT test1('aa.bb.cc'::ltree); +INFO: ['aa', 'bb', 'cc'] + test1 +------- + 3 +(1 row) + +CREATE FUNCTION test1n(val ltree) RETURNS int +LANGUAGE plpython2u +TRANSFORM FOR TYPE ltree +AS $$ +plpy.info(repr(val)) +return len(val) +$$; +SELECT test1n('aa.bb.cc'::ltree); +INFO: ['aa', 'bb', 'cc'] + test1n +-------- + 3 +(1 row) + +CREATE FUNCTION test2() RETURNS ltree +LANGUAGE plpythonu +TRANSFORM FOR TYPE ltree +AS $$ +return ['foo', 'bar', 'baz'] +$$; +-- plpython to ltree is not yet implemented, so this will fail, +-- because it will try to parse the Python list as an ltree input +-- string. +SELECT test2(); +ERROR: ltree syntax error at character 1 +CONTEXT: while creating return value +PL/Python function "test2" diff --git a/contrib/ltree_plpython/ltree_plpython.c b/contrib/ltree_plpython/ltree_plpython.c new file mode 100644 index 0000000..1570e77 --- /dev/null +++ b/contrib/ltree_plpython/ltree_plpython.c @@ -0,0 +1,64 @@ +#include "postgres.h" + +#include "fmgr.h" +#include "ltree/ltree.h" +#include "plpython.h" + +PG_MODULE_MAGIC; + +extern void _PG_init(void); + +/* Linkage to functions in plpython module */ +#if PY_MAJOR_VERSION >= 3 +typedef PyObject *(*PLyUnicode_FromStringAndSize_t) (const char *s, Py_ssize_t size); +static PLyUnicode_FromStringAndSize_t PLyUnicode_FromStringAndSize_p; +#endif + + +/* + * Module initialize function: fetch function pointers for cross-module calls. + */ +void +_PG_init(void) +{ + /* Asserts verify that typedefs above match original declarations */ +#if PY_MAJOR_VERSION >= 3 + AssertVariableIsOfType(&PLyUnicode_FromStringAndSize, PLyUnicode_FromStringAndSize_t); + PLyUnicode_FromStringAndSize_p = (PLyUnicode_FromStringAndSize_t) + load_external_function("$libdir/" PLPYTHON_LIBNAME, "PLyUnicode_FromStringAndSize", + true, NULL); +#endif +} + + +/* These defines must be after the module init function */ +#define PLyUnicode_FromStringAndSize PLyUnicode_FromStringAndSize_p + + +PG_FUNCTION_INFO_V1(ltree_to_plpython); + +Datum +ltree_to_plpython(PG_FUNCTION_ARGS) +{ + ltree *in = PG_GETARG_LTREE_P(0); + int i; + PyObject *list; + ltree_level *curlevel; + + list = PyList_New(in->numlevel); + if (!list) + ereport(ERROR, + (errcode(ERRCODE_OUT_OF_MEMORY), + errmsg("out of memory"))); + + curlevel = LTREE_FIRST(in); + for (i = 0; i < in->numlevel; i++) + { + PyList_SetItem(list, i, PyString_FromStringAndSize(curlevel->name, curlevel->len)); + curlevel = LEVEL_NEXT(curlevel); + } + + PG_FREE_IF_COPY(in, 0); + + return PointerGetDatum(list); +} diff --git a/contrib/ltree_plpython/ltree_plpython2u--1.0.sql b/contrib/ltree_plpython/ltree_plpython2u--1.0.sql new file mode 100644 index 0000000..5c4a703 --- /dev/null +++ b/contrib/ltree_plpython/ltree_plpython2u--1.0.sql @@ -0,0 +1,12 @@ +/* contrib/ltree_plpython/ltree_plpython2u--1.0.sql */ + +-- complain if script is sourced in psql, rather than via CREATE EXTENSION +\echo Use "CREATE EXTENSION ltree_plpython2u" to load this file. \quit + +CREATE FUNCTION ltree_to_plpython2(val internal) RETURNS internal +LANGUAGE C STRICT IMMUTABLE +AS 'MODULE_PATHNAME', 'ltree_to_plpython'; + +CREATE TRANSFORM FOR ltree LANGUAGE plpython2u ( + FROM SQL WITH FUNCTION ltree_to_plpython2(internal) +); diff --git a/contrib/ltree_plpython/ltree_plpython2u.control b/contrib/ltree_plpython/ltree_plpython2u.control new file mode 100644 index 0000000..bedfd0a --- /dev/null +++ b/contrib/ltree_plpython/ltree_plpython2u.control @@ -0,0 +1,6 @@ +# ltree_plpython2u extension +comment = 'transform between ltree and plpython2u' +default_version = '1.0' +module_pathname = '$libdir/ltree_plpython2' +relocatable = true +requires = 'ltree,plpython2u' diff --git a/contrib/ltree_plpython/ltree_plpython3u--1.0.sql b/contrib/ltree_plpython/ltree_plpython3u--1.0.sql new file mode 100644 index 0000000..09ada3c --- /dev/null +++ b/contrib/ltree_plpython/ltree_plpython3u--1.0.sql @@ -0,0 +1,12 @@ +/* contrib/ltree_plpython/ltree_plpython3u--1.0.sql */ + +-- complain if script is sourced in psql, rather than via CREATE EXTENSION +\echo Use "CREATE EXTENSION ltree_plpython3u" to load this file. \quit + +CREATE FUNCTION ltree_to_plpython3(val internal) RETURNS internal +LANGUAGE C STRICT IMMUTABLE +AS 'MODULE_PATHNAME', 'ltree_to_plpython'; + +CREATE TRANSFORM FOR ltree LANGUAGE plpython3u ( + FROM SQL WITH FUNCTION ltree_to_plpython3(internal) +); diff --git a/contrib/ltree_plpython/ltree_plpython3u.control b/contrib/ltree_plpython/ltree_plpython3u.control new file mode 100644 index 0000000..96c9764 --- /dev/null +++ b/contrib/ltree_plpython/ltree_plpython3u.control @@ -0,0 +1,6 @@ +# ltree_plpython3u extension +comment = 'transform between ltree and plpython3u' +default_version = '1.0' +module_pathname = '$libdir/ltree_plpython3' +relocatable = true +requires = 'ltree,plpython3u' diff --git a/contrib/ltree_plpython/ltree_plpythonu--1.0.sql b/contrib/ltree_plpython/ltree_plpythonu--1.0.sql new file mode 100644 index 0000000..ee93edf --- /dev/null +++ b/contrib/ltree_plpython/ltree_plpythonu--1.0.sql @@ -0,0 +1,12 @@ +/* contrib/ltree_plpython/ltree_plpythonu--1.0.sql */ + +-- complain if script is sourced in psql, rather than via CREATE EXTENSION +\echo Use "CREATE EXTENSION ltree_plpythonu" to load this file. \quit + +CREATE FUNCTION ltree_to_plpython(val internal) RETURNS internal +LANGUAGE C STRICT IMMUTABLE +AS 'MODULE_PATHNAME'; + +CREATE TRANSFORM FOR ltree LANGUAGE plpythonu ( + FROM SQL WITH FUNCTION ltree_to_plpython(internal) +); diff --git a/contrib/ltree_plpython/ltree_plpythonu.control b/contrib/ltree_plpython/ltree_plpythonu.control new file mode 100644 index 0000000..b03c89a --- /dev/null +++ b/contrib/ltree_plpython/ltree_plpythonu.control @@ -0,0 +1,6 @@ +# ltree_plpythonu extension +comment = 'transform between ltree and plpythonu' +default_version = '1.0' +module_pathname = '$libdir/ltree_plpython2' +relocatable = true +requires = 'ltree,plpythonu' diff --git a/contrib/ltree_plpython/sql/ltree_plpython.sql b/contrib/ltree_plpython/sql/ltree_plpython.sql new file mode 100644 index 0000000..210f542 --- /dev/null +++ b/contrib/ltree_plpython/sql/ltree_plpython.sql @@ -0,0 +1,36 @@ +CREATE EXTENSION ltree_plpython2u CASCADE; + + +CREATE FUNCTION test1(val ltree) RETURNS int +LANGUAGE plpythonu +TRANSFORM FOR TYPE ltree +AS $$ +plpy.info(repr(val)) +return len(val) +$$; + +SELECT test1('aa.bb.cc'::ltree); + + +CREATE FUNCTION test1n(val ltree) RETURNS int +LANGUAGE plpython2u +TRANSFORM FOR TYPE ltree +AS $$ +plpy.info(repr(val)) +return len(val) +$$; + +SELECT test1n('aa.bb.cc'::ltree); + + +CREATE FUNCTION test2() RETURNS ltree +LANGUAGE plpythonu +TRANSFORM FOR TYPE ltree +AS $$ +return ['foo', 'bar', 'baz'] +$$; + +-- plpython to ltree is not yet implemented, so this will fail, +-- because it will try to parse the Python list as an ltree input +-- string. +SELECT test2(); |