Adding upstream version 13.4.upstream/13.4upstream

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

1 files changed, 401 insertions, 0 deletions

diff --git a/contrib/btree_gist/btree_ts.c b/contrib/btree_gist/btree_ts.c
new file mode 100644
index 0000000..2671ba9
--- /dev/null
+++ b/contrib/btree_gist/btree_ts.c
@@ -0,0 +1,401 @@
+/*
+ * contrib/btree_gist/btree_ts.c
+ */
+#include "postgres.h"
+
+#include <limits.h>
+
+#include "btree_gist.h"
+#include "btree_utils_num.h"
+#include "utils/builtins.h"
+#include "utils/datetime.h"
+#include "utils/float.h"
+
+typedef struct
+{
+	Timestamp	lower;
+	Timestamp	upper;
+} tsKEY;
+
+/*
+** timestamp ops
+*/
+PG_FUNCTION_INFO_V1(gbt_ts_compress);
+PG_FUNCTION_INFO_V1(gbt_tstz_compress);
+PG_FUNCTION_INFO_V1(gbt_ts_fetch);
+PG_FUNCTION_INFO_V1(gbt_ts_union);
+PG_FUNCTION_INFO_V1(gbt_ts_picksplit);
+PG_FUNCTION_INFO_V1(gbt_ts_consistent);
+PG_FUNCTION_INFO_V1(gbt_ts_distance);
+PG_FUNCTION_INFO_V1(gbt_tstz_consistent);
+PG_FUNCTION_INFO_V1(gbt_tstz_distance);
+PG_FUNCTION_INFO_V1(gbt_ts_penalty);
+PG_FUNCTION_INFO_V1(gbt_ts_same);
+
+
+#ifdef USE_FLOAT8_BYVAL
+#define TimestampGetDatumFast(X) TimestampGetDatum(X)
+#else
+#define TimestampGetDatumFast(X) PointerGetDatum(&(X))
+#endif
+
+
+static bool
+gbt_tsgt(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	const Timestamp *aa = (const Timestamp *) a;
+	const Timestamp *bb = (const Timestamp *) b;
+
+	return DatumGetBool(DirectFunctionCall2(timestamp_gt,
+											TimestampGetDatumFast(*aa),
+											TimestampGetDatumFast(*bb)));
+}
+
+static bool
+gbt_tsge(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	const Timestamp *aa = (const Timestamp *) a;
+	const Timestamp *bb = (const Timestamp *) b;
+
+	return DatumGetBool(DirectFunctionCall2(timestamp_ge,
+											TimestampGetDatumFast(*aa),
+											TimestampGetDatumFast(*bb)));
+}
+
+static bool
+gbt_tseq(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	const Timestamp *aa = (const Timestamp *) a;
+	const Timestamp *bb = (const Timestamp *) b;
+
+	return DatumGetBool(DirectFunctionCall2(timestamp_eq,
+											TimestampGetDatumFast(*aa),
+											TimestampGetDatumFast(*bb)));
+}
+
+static bool
+gbt_tsle(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	const Timestamp *aa = (const Timestamp *) a;
+	const Timestamp *bb = (const Timestamp *) b;
+
+	return DatumGetBool(DirectFunctionCall2(timestamp_le,
+											TimestampGetDatumFast(*aa),
+											TimestampGetDatumFast(*bb)));
+}
+
+static bool
+gbt_tslt(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	const Timestamp *aa = (const Timestamp *) a;
+	const Timestamp *bb = (const Timestamp *) b;
+
+	return DatumGetBool(DirectFunctionCall2(timestamp_lt,
+											TimestampGetDatumFast(*aa),
+											TimestampGetDatumFast(*bb)));
+}
+
+
+static int
+gbt_tskey_cmp(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	tsKEY	   *ia = (tsKEY *) (((const Nsrt *) a)->t);
+	tsKEY	   *ib = (tsKEY *) (((const Nsrt *) b)->t);
+	int			res;
+
+	res = DatumGetInt32(DirectFunctionCall2(timestamp_cmp, TimestampGetDatumFast(ia->lower), TimestampGetDatumFast(ib->lower)));
+	if (res == 0)
+		return DatumGetInt32(DirectFunctionCall2(timestamp_cmp, TimestampGetDatumFast(ia->upper), TimestampGetDatumFast(ib->upper)));
+
+	return res;
+}
+
+static float8
+gbt_ts_dist(const void *a, const void *b, FmgrInfo *flinfo)
+{
+	const Timestamp *aa = (const Timestamp *) a;
+	const Timestamp *bb = (const Timestamp *) b;
+	Interval   *i;
+
+	if (TIMESTAMP_NOT_FINITE(*aa) || TIMESTAMP_NOT_FINITE(*bb))
+		return get_float8_infinity();
+
+	i = DatumGetIntervalP(DirectFunctionCall2(timestamp_mi,
+											  TimestampGetDatumFast(*aa),
+											  TimestampGetDatumFast(*bb)));
+	return (float8) Abs(INTERVAL_TO_SEC(i));
+}
+
+
+static const gbtree_ninfo tinfo =
+{
+	gbt_t_ts,
+	sizeof(Timestamp),
+	16,							/* sizeof(gbtreekey16) */
+	gbt_tsgt,
+	gbt_tsge,
+	gbt_tseq,
+	gbt_tsle,
+	gbt_tslt,
+	gbt_tskey_cmp,
+	gbt_ts_dist
+};
+
+
+PG_FUNCTION_INFO_V1(ts_dist);
+Datum
+ts_dist(PG_FUNCTION_ARGS)
+{
+	Timestamp	a = PG_GETARG_TIMESTAMP(0);
+	Timestamp	b = PG_GETARG_TIMESTAMP(1);
+	Interval   *r;
+
+	if (TIMESTAMP_NOT_FINITE(a) || TIMESTAMP_NOT_FINITE(b))
+	{
+		Interval   *p = palloc(sizeof(Interval));
+
+		p->day = INT_MAX;
+		p->month = INT_MAX;
+		p->time = PG_INT64_MAX;
+		PG_RETURN_INTERVAL_P(p);
+	}
+	else
+		r = DatumGetIntervalP(DirectFunctionCall2(timestamp_mi,
+												  PG_GETARG_DATUM(0),
+												  PG_GETARG_DATUM(1)));
+	PG_RETURN_INTERVAL_P(abs_interval(r));
+}
+
+PG_FUNCTION_INFO_V1(tstz_dist);
+Datum
+tstz_dist(PG_FUNCTION_ARGS)
+{
+	TimestampTz a = PG_GETARG_TIMESTAMPTZ(0);
+	TimestampTz b = PG_GETARG_TIMESTAMPTZ(1);
+	Interval   *r;
+
+	if (TIMESTAMP_NOT_FINITE(a) || TIMESTAMP_NOT_FINITE(b))
+	{
+		Interval   *p = palloc(sizeof(Interval));
+
+		p->day = INT_MAX;
+		p->month = INT_MAX;
+		p->time = PG_INT64_MAX;
+		PG_RETURN_INTERVAL_P(p);
+	}
+
+	r = DatumGetIntervalP(DirectFunctionCall2(timestamp_mi,
+											  PG_GETARG_DATUM(0),
+											  PG_GETARG_DATUM(1)));
+	PG_RETURN_INTERVAL_P(abs_interval(r));
+}
+
+
+/**************************************************
+ * timestamp ops
+ **************************************************/
+
+
+static inline Timestamp
+tstz_to_ts_gmt(TimestampTz ts)
+{
+	/* No timezone correction is needed, since GMT is offset 0 by definition */
+	return (Timestamp) ts;
+}
+
+
+Datum
+gbt_ts_compress(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+
+	PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
+}
+
+
+Datum
+gbt_tstz_compress(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+	GISTENTRY  *retval;
+
+	if (entry->leafkey)
+	{
+		tsKEY	   *r = (tsKEY *) palloc(sizeof(tsKEY));
+		TimestampTz ts = DatumGetTimestampTz(entry->key);
+		Timestamp	gmt;
+
+		gmt = tstz_to_ts_gmt(ts);
+
+		retval = palloc(sizeof(GISTENTRY));
+		r->lower = r->upper = gmt;
+		gistentryinit(*retval, PointerGetDatum(r),
+					  entry->rel, entry->page,
+					  entry->offset, false);
+	}
+	else
+		retval = entry;
+
+	PG_RETURN_POINTER(retval);
+}
+
+Datum
+gbt_ts_fetch(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+
+	PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
+}
+
+Datum
+gbt_ts_consistent(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+	Timestamp	query = PG_GETARG_TIMESTAMP(1);
+	StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
+
+	/* Oid		subtype = PG_GETARG_OID(3); */
+	bool	   *recheck = (bool *) PG_GETARG_POINTER(4);
+	tsKEY	   *kkk = (tsKEY *) 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_ts_distance(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+	Timestamp	query = PG_GETARG_TIMESTAMP(1);
+
+	/* Oid		subtype = PG_GETARG_OID(3); */
+	tsKEY	   *kkk = (tsKEY *) 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_tstz_consistent(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+	TimestampTz query = PG_GETARG_TIMESTAMPTZ(1);
+	StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
+
+	/* Oid		subtype = PG_GETARG_OID(3); */
+	bool	   *recheck = (bool *) PG_GETARG_POINTER(4);
+	char	   *kkk = (char *) DatumGetPointer(entry->key);
+	GBT_NUMKEY_R key;
+	Timestamp	qqq;
+
+	/* All cases served by this function are exact */
+	*recheck = false;
+
+	key.lower = (GBT_NUMKEY *) &kkk[0];
+	key.upper = (GBT_NUMKEY *) &kkk[MAXALIGN(tinfo.size)];
+	qqq = tstz_to_ts_gmt(query);
+
+	PG_RETURN_BOOL(gbt_num_consistent(&key, (void *) &qqq, &strategy,
+									  GIST_LEAF(entry), &tinfo, fcinfo->flinfo));
+}
+
+Datum
+gbt_tstz_distance(PG_FUNCTION_ARGS)
+{
+	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+	TimestampTz query = PG_GETARG_TIMESTAMPTZ(1);
+
+	/* Oid		subtype = PG_GETARG_OID(3); */
+	char	   *kkk = (char *) DatumGetPointer(entry->key);
+	GBT_NUMKEY_R key;
+	Timestamp	qqq;
+
+	key.lower = (GBT_NUMKEY *) &kkk[0];
+	key.upper = (GBT_NUMKEY *) &kkk[MAXALIGN(tinfo.size)];
+	qqq = tstz_to_ts_gmt(query);
+
+	PG_RETURN_FLOAT8(gbt_num_distance(&key, (void *) &qqq, GIST_LEAF(entry),
+									  &tinfo, fcinfo->flinfo));
+}
+
+
+Datum
+gbt_ts_union(PG_FUNCTION_ARGS)
+{
+	GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
+	void	   *out = palloc(sizeof(tsKEY));
+
+	*(int *) PG_GETARG_POINTER(1) = sizeof(tsKEY);
+	PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo, fcinfo->flinfo));
+}
+
+
+#define penalty_check_max_float(val) \
+	do { \
+		if ( val > FLT_MAX ) \
+				val = FLT_MAX; \
+		if ( val < -FLT_MAX ) \
+				val = -FLT_MAX; \
+	} while (0)
+
+
+Datum
+gbt_ts_penalty(PG_FUNCTION_ARGS)
+{
+	tsKEY	   *origentry = (tsKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
+	tsKEY	   *newentry = (tsKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
+	float	   *result = (float *) PG_GETARG_POINTER(2);
+
+	double		orgdbl[2],
+				newdbl[2];
+
+	/*
+	 * We are always using "double" timestamps here. Precision should be good
+	 * enough.
+	 */
+	orgdbl[0] = ((double) origentry->lower);
+	orgdbl[1] = ((double) origentry->upper);
+	newdbl[0] = ((double) newentry->lower);
+	newdbl[1] = ((double) newentry->upper);
+
+	penalty_check_max_float(orgdbl[0]);
+	penalty_check_max_float(orgdbl[1]);
+	penalty_check_max_float(newdbl[0]);
+	penalty_check_max_float(newdbl[1]);
+
+	penalty_num(result, orgdbl[0], orgdbl[1], newdbl[0], newdbl[1]);
+
+	PG_RETURN_POINTER(result);
+
+}
+
+
+Datum
+gbt_ts_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_ts_same(PG_FUNCTION_ARGS)
+{
+	tsKEY	   *b1 = (tsKEY *) PG_GETARG_POINTER(0);
+	tsKEY	   *b2 = (tsKEY *) 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);
+}