Adding upstream version 15.5.upstream/15.5

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

1 files changed, 212 insertions, 0 deletions

diff --git a/contrib/btree_gist/btree_float4.c b/contrib/btree_gist/btree_float4.c
new file mode 100644
index 0000000..3cbd9a0
--- /dev/null
+++ b/contrib/btree_gist/btree_float4.c
@@ -0,0 +1,212 @@
+/*
+ * contrib/btree_gist/btree_float4.c
+ */
+#include "postgres.h"
+
+#include "btree_gist.h"
+#include "btree_utils_num.h"
+#include "utils/float.h"
+
+typedef struct float4key
+{
+	float4		lower;
+	float4		upper;
+} float4KEY;
+
+/*
+** float4 ops
+*/
+PG_FUNCTION_INFO_V1(gbt_float4_compress);
+PG_FUNCTION_INFO_V1(gbt_float4_fetch);
+PG_FUNCTION_INFO_V1(gbt_float4_union);
+PG_FUNCTION_INFO_V1(gbt_float4_picksplit);
+PG_FUNCTION_INFO_V1(gbt_float4_consistent);
+PG_FUNCTION_INFO_V1(gbt_float4_distance);
+PG_FUNCTION_INFO_V1(gbt_float4_penalty);
+PG_FUNCTION_INFO_V1(gbt_float4_same);
+
+static bool
+gbt_float4gt(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	return (*((const float4 *) a) > *((const float4 *) b));
+}
+static bool
+gbt_float4ge(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	return (*((const float4 *) a) >= *((const float4 *) b));
+}
+static bool
+gbt_float4eq(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	return (*((const float4 *) a) == *((const float4 *) b));
+}
+static bool
+gbt_float4le(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	return (*((const float4 *) a) <= *((const float4 *) b));
+}
+static bool
+gbt_float4lt(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	return (*((const float4 *) a) < *((const float4 *) b));
+}
+
+static int
+gbt_float4key_cmp(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	float4KEY  *ia = (float4KEY *) (((const Nsrt *) a)->t);
+	float4KEY  *ib = (float4KEY *) (((const Nsrt *) b)->t);
+
+	if (ia->lower == ib->lower)
+	{
+		if (ia->upper == ib->upper)
+			return 0;
+
+		return (ia->upper > ib->upper) ? 1 : -1;
+	}
+
+	return (ia->lower > ib->lower) ? 1 : -1;
+}
+
+static float8
+gbt_float4_dist(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	return GET_FLOAT_DISTANCE(float4, a, b);
+}
+
+
+static const gbtree_ninfo tinfo =
+{
+	gbt_t_float4,
+	sizeof(float4),
+	8,							/* sizeof(gbtreekey8) */
+	gbt_float4gt,
+	gbt_float4ge,
+	gbt_float4eq,
+	gbt_float4le,
+	gbt_float4lt,
+	gbt_float4key_cmp,
+	gbt_float4_dist
+};
+
+
+PG_FUNCTION_INFO_V1(float4_dist);
+Datum
+float4_dist(PG_FUNCTION_ARGS)
+{
+	float4		a = PG_GETARG_FLOAT4(0);
+	float4		b = PG_GETARG_FLOAT4(1);
+	float4		r;
+
+	r = a - b;
+	if (unlikely(isinf(r)) && !isinf(a) && !isinf(b))
+		float_overflow_error();
+
+	PG_RETURN_FLOAT4(Abs(r));
+}
+
+
+/**************************************************
+ * float4 ops
+ **************************************************/
+
+
+Datum
+gbt_float4_compress(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+
+	PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
+}
+
+Datum
+gbt_float4_fetch(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+
+	PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
+}
+
+Datum
+gbt_float4_consistent(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+	float4		query = PG_GETARG_FLOAT4(1);
+	StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
+
+	/* Oid		subtype = PG_GETARG_OID(3); */
+	bool	   *recheck = (bool *) PG_GETARG_POINTER(4);
+	float4KEY  *kkk = (float4KEY *) 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_float4_distance(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+	float4		query = PG_GETARG_FLOAT4(1);
+
+	/* Oid		subtype = PG_GETARG_OID(3); */
+	float4KEY  *kkk = (float4KEY *) DatumGetPointer(entry->key);
+	GBT_NUMKEY_R key;
+
+	key.lower = (GBT_NUMKEY *) &kkk->lower;
+	key.upper = (GBT_NUMKEY *) &kkk->upper;
+
+	PG_RETURN_FLOAT8(gbt_num_distance(&key, (void *) &query, GIST_LEAF(entry),
+									  &tinfo, fcinfo->flinfo));
+}
+
+
+Datum
+gbt_float4_union(PG_FUNCTION_ARGS)
+{
+	GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
+	void	   *out = palloc(sizeof(float4KEY));
+
+	*(int *) PG_GETARG_POINTER(1) = sizeof(float4KEY);
+	PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo, fcinfo->flinfo));
+}
+
+
+Datum
+gbt_float4_penalty(PG_FUNCTION_ARGS)
+{
+	float4KEY  *origentry = (float4KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
+	float4KEY  *newentry = (float4KEY *) 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_float4_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_float4_same(PG_FUNCTION_ARGS)
+{
+	float4KEY  *b1 = (float4KEY *) PG_GETARG_POINTER(0);
+	float4KEY  *b2 = (float4KEY *) 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);
+}