Adding upstream version 13.4.upstream/13.4upstream

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

1 files changed, 259 insertions, 0 deletions

diff --git a/contrib/btree_gist/btree_date.c b/contrib/btree_gist/btree_date.c
new file mode 100644
index 0000000..455a265
--- /dev/null
+++ b/contrib/btree_gist/btree_date.c
@@ -0,0 +1,259 @@
+/*
+ * contrib/btree_gist/btree_date.c
+ */
+#include "postgres.h"
+
+#include "btree_gist.h"
+#include "btree_utils_num.h"
+#include "utils/builtins.h"
+#include "utils/date.h"
+
+typedef struct
+{
+	DateADT		lower;
+	DateADT		upper;
+} dateKEY;
+
+/*
+** date ops
+*/
+PG_FUNCTION_INFO_V1(gbt_date_compress);
+PG_FUNCTION_INFO_V1(gbt_date_fetch);
+PG_FUNCTION_INFO_V1(gbt_date_union);
+PG_FUNCTION_INFO_V1(gbt_date_picksplit);
+PG_FUNCTION_INFO_V1(gbt_date_consistent);
+PG_FUNCTION_INFO_V1(gbt_date_distance);
+PG_FUNCTION_INFO_V1(gbt_date_penalty);
+PG_FUNCTION_INFO_V1(gbt_date_same);
+
+static bool
+gbt_dategt(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	return DatumGetBool(DirectFunctionCall2(date_gt,
+											DateADTGetDatum(*((const DateADT *) a)),
+											DateADTGetDatum(*((const DateADT *) b))));
+}
+
+static bool
+gbt_datege(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	return DatumGetBool(DirectFunctionCall2(date_ge,
+											DateADTGetDatum(*((const DateADT *) a)),
+											DateADTGetDatum(*((const DateADT *) b))));
+}
+
+static bool
+gbt_dateeq(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	return DatumGetBool(DirectFunctionCall2(date_eq,
+											DateADTGetDatum(*((const DateADT *) a)),
+											DateADTGetDatum(*((const DateADT *) b)))
+		);
+}
+
+static bool
+gbt_datele(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	return DatumGetBool(DirectFunctionCall2(date_le,
+											DateADTGetDatum(*((const DateADT *) a)),
+											DateADTGetDatum(*((const DateADT *) b))));
+}
+
+static bool
+gbt_datelt(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	return DatumGetBool(DirectFunctionCall2(date_lt,
+											DateADTGetDatum(*((const DateADT *) a)),
+											DateADTGetDatum(*((const DateADT *) b))));
+}
+
+
+
+static int
+gbt_datekey_cmp(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	dateKEY    *ia = (dateKEY *) (((const Nsrt *) a)->t);
+	dateKEY    *ib = (dateKEY *) (((const Nsrt *) b)->t);
+	int			res;
+
+	res = DatumGetInt32(DirectFunctionCall2(date_cmp,
+											DateADTGetDatum(ia->lower),
+											DateADTGetDatum(ib->lower)));
+	if (res == 0)
+		return DatumGetInt32(DirectFunctionCall2(date_cmp,
+												 DateADTGetDatum(ia->upper),
+												 DateADTGetDatum(ib->upper)));
+
+	return res;
+}
+
+static float8
+gdb_date_dist(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	/* we assume the difference can't overflow */
+	Datum		diff = DirectFunctionCall2(date_mi,
+										   DateADTGetDatum(*((const DateADT *) a)),
+										   DateADTGetDatum(*((const DateADT *) b)));
+
+	return (float8) Abs(DatumGetInt32(diff));
+}
+
+
+static const gbtree_ninfo tinfo =
+{
+	gbt_t_date,
+	sizeof(DateADT),
+	8,							/* sizeof(gbtreekey8) */
+	gbt_dategt,
+	gbt_datege,
+	gbt_dateeq,
+	gbt_datele,
+	gbt_datelt,
+	gbt_datekey_cmp,
+	gdb_date_dist
+};
+
+
+PG_FUNCTION_INFO_V1(date_dist);
+Datum
+date_dist(PG_FUNCTION_ARGS)
+{
+	/* we assume the difference can't overflow */
+	Datum		diff = DirectFunctionCall2(date_mi,
+										   PG_GETARG_DATUM(0),
+										   PG_GETARG_DATUM(1));
+
+	PG_RETURN_INT32(Abs(DatumGetInt32(diff)));
+}
+
+
+/**************************************************
+ * date ops
+ **************************************************/
+
+
+
+Datum
+gbt_date_compress(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+
+	PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
+}
+
+Datum
+gbt_date_fetch(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+
+	PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
+}
+
+Datum
+gbt_date_consistent(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+	DateADT		query = PG_GETARG_DATEADT(1);
+	StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
+
+	/* Oid		subtype = PG_GETARG_OID(3); */
+	bool	   *recheck = (bool *) PG_GETARG_POINTER(4);
+	dateKEY    *kkk = (dateKEY *) 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_date_distance(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+	DateADT		query = PG_GETARG_DATEADT(1);
+
+	/* Oid		subtype = PG_GETARG_OID(3); */
+	dateKEY    *kkk = (dateKEY *) 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_date_union(PG_FUNCTION_ARGS)
+{
+	GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
+	void	   *out = palloc(sizeof(dateKEY));
+
+	*(int *) PG_GETARG_POINTER(1) = sizeof(dateKEY);
+	PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo, fcinfo->flinfo));
+}
+
+
+Datum
+gbt_date_penalty(PG_FUNCTION_ARGS)
+{
+	dateKEY    *origentry = (dateKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
+	dateKEY    *newentry = (dateKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
+	float	   *result = (float *) PG_GETARG_POINTER(2);
+	int32		diff,
+				res;
+
+	diff = DatumGetInt32(DirectFunctionCall2(date_mi,
+											 DateADTGetDatum(newentry->upper),
+											 DateADTGetDatum(origentry->upper)));
+
+	res = Max(diff, 0);
+
+	diff = DatumGetInt32(DirectFunctionCall2(date_mi,
+											 DateADTGetDatum(origentry->lower),
+											 DateADTGetDatum(newentry->lower)));
+
+	res += Max(diff, 0);
+
+	*result = 0.0;
+
+	if (res > 0)
+	{
+		diff = DatumGetInt32(DirectFunctionCall2(date_mi,
+												 DateADTGetDatum(origentry->upper),
+												 DateADTGetDatum(origentry->lower)));
+		*result += FLT_MIN;
+		*result += (float) (res / ((double) (res + diff)));
+		*result *= (FLT_MAX / (((GISTENTRY *) PG_GETARG_POINTER(0))->rel->rd_att->natts + 1));
+	}
+
+	PG_RETURN_POINTER(result);
+}
+
+
+Datum
+gbt_date_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_date_same(PG_FUNCTION_ARGS)
+{
+	dateKEY    *b1 = (dateKEY *) PG_GETARG_POINTER(0);
+	dateKEY    *b2 = (dateKEY *) 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);
+}