Adding upstream version 13.4.upstream/13.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 185 insertions, 0 deletions

diff --git a/contrib/btree_gist/btree_enum.c b/contrib/btree_gist/btree_enum.c
new file mode 100644
index 0000000..d4dc38a
--- /dev/null
+++ b/contrib/btree_gist/btree_enum.c
@@ -0,0 +1,185 @@
+/*
+ * contrib/btree_gist/btree_enum.c
+ */
+#include "postgres.h"
+
+#include "btree_gist.h"
+#include "btree_utils_num.h"
+#include "fmgr.h"
+#include "utils/builtins.h"
+
+/* enums are really Oids, so we just use the same structure */
+
+typedef struct
+{
+	Oid			lower;
+	Oid			upper;
+} oidKEY;
+
+/*
+** enum ops
+*/
+PG_FUNCTION_INFO_V1(gbt_enum_compress);
+PG_FUNCTION_INFO_V1(gbt_enum_fetch);
+PG_FUNCTION_INFO_V1(gbt_enum_union);
+PG_FUNCTION_INFO_V1(gbt_enum_picksplit);
+PG_FUNCTION_INFO_V1(gbt_enum_consistent);
+PG_FUNCTION_INFO_V1(gbt_enum_penalty);
+PG_FUNCTION_INFO_V1(gbt_enum_same);
+
+
+static bool
+gbt_enumgt(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	return DatumGetBool(CallerFInfoFunctionCall2(enum_gt, flinfo, InvalidOid,
+												 ObjectIdGetDatum(*((const Oid *) a)),
+												 ObjectIdGetDatum(*((const Oid *) b))));
+}
+static bool
+gbt_enumge(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	return DatumGetBool(CallerFInfoFunctionCall2(enum_ge, flinfo, InvalidOid,
+												 ObjectIdGetDatum(*((const Oid *) a)),
+												 ObjectIdGetDatum(*((const Oid *) b))));
+}
+static bool
+gbt_enumeq(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	return (*((const Oid *) a) == *((const Oid *) b));
+}
+static bool
+gbt_enumle(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	return DatumGetBool(CallerFInfoFunctionCall2(enum_le, flinfo, InvalidOid,
+												 ObjectIdGetDatum(*((const Oid *) a)),
+												 ObjectIdGetDatum(*((const Oid *) b))));
+}
+static bool
+gbt_enumlt(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	return DatumGetBool(CallerFInfoFunctionCall2(enum_lt, flinfo, InvalidOid,
+												 ObjectIdGetDatum(*((const Oid *) a)),
+												 ObjectIdGetDatum(*((const Oid *) b))));
+}
+
+static int
+gbt_enumkey_cmp(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	oidKEY	   *ia = (oidKEY *) (((const Nsrt *) a)->t);
+	oidKEY	   *ib = (oidKEY *) (((const Nsrt *) b)->t);
+
+	if (ia->lower == ib->lower)
+	{
+		if (ia->upper == ib->upper)
+			return 0;
+
+		return DatumGetInt32(CallerFInfoFunctionCall2(enum_cmp, flinfo, InvalidOid,
+													  ObjectIdGetDatum(ia->upper),
+													  ObjectIdGetDatum(ib->upper)));
+	}
+
+	return DatumGetInt32(CallerFInfoFunctionCall2(enum_cmp, flinfo, InvalidOid,
+												  ObjectIdGetDatum(ia->lower),
+												  ObjectIdGetDatum(ib->lower)));
+}
+
+static const gbtree_ninfo tinfo =
+{
+	gbt_t_enum,
+	sizeof(Oid),
+	8,							/* sizeof(gbtreekey8) */
+	gbt_enumgt,
+	gbt_enumge,
+	gbt_enumeq,
+	gbt_enumle,
+	gbt_enumlt,
+	gbt_enumkey_cmp,
+	NULL						/* no KNN support at least for now */
+};
+
+
+/**************************************************
+ * Enum ops
+ **************************************************/
+
+
+Datum
+gbt_enum_compress(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+
+	PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
+}
+
+Datum
+gbt_enum_fetch(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+
+	PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
+}
+
+Datum
+gbt_enum_consistent(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+	Oid			query = PG_GETARG_OID(1);
+	StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
+
+	/* Oid		subtype = PG_GETARG_OID(3); */
+	bool	   *recheck = (bool *) PG_GETARG_POINTER(4);
+	oidKEY	   *kkk = (oidKEY *) DatumGetPointer(entry->key);
+	GBT_NUMKEY_R key;
+
+	/* All cases served by this function are exact */
+	*recheck = false;
+
+	key.lower = (GBT_NUMKEY *) &kkk->lower;
+	key.upper = (GBT_NUMKEY *) &kkk->upper;
+
+	PG_RETURN_BOOL(gbt_num_consistent(&key, (void *) &query, &strategy,
+									  GIST_LEAF(entry), &tinfo,
+									  fcinfo->flinfo));
+}
+
+Datum
+gbt_enum_union(PG_FUNCTION_ARGS)
+{
+	GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
+	void	   *out = palloc(sizeof(oidKEY));
+
+	*(int *) PG_GETARG_POINTER(1) = sizeof(oidKEY);
+	PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo, fcinfo->flinfo));
+}
+
+
+Datum
+gbt_enum_penalty(PG_FUNCTION_ARGS)
+{
+	oidKEY	   *origentry = (oidKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
+	oidKEY	   *newentry = (oidKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
+	float	   *result = (float *) PG_GETARG_POINTER(2);
+
+	penalty_num(result, origentry->lower, origentry->upper, newentry->lower, newentry->upper);
+
+	PG_RETURN_POINTER(result);
+}
+
+Datum
+gbt_enum_picksplit(PG_FUNCTION_ARGS)
+{
+	PG_RETURN_POINTER(gbt_num_picksplit((GistEntryVector *) PG_GETARG_POINTER(0),
+										(GIST_SPLITVEC *) PG_GETARG_POINTER(1),
+										&tinfo, fcinfo->flinfo));
+}
+
+Datum
+gbt_enum_same(PG_FUNCTION_ARGS)
+{
+	oidKEY	   *b1 = (oidKEY *) PG_GETARG_POINTER(0);
+	oidKEY	   *b2 = (oidKEY *) PG_GETARG_POINTER(1);
+	bool	   *result = (bool *) PG_GETARG_POINTER(2);
+
+	*result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo);
+	PG_RETURN_POINTER(result);
+}