summaryrefslogtreecommitdiffstats
path: root/contrib/btree_gist/btree_time.c
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/btree_gist/btree_time.c')
-rw-r--r--contrib/btree_gist/btree_time.c334
1 files changed, 334 insertions, 0 deletions
diff --git a/contrib/btree_gist/btree_time.c b/contrib/btree_gist/btree_time.c
new file mode 100644
index 0000000..fd8774a
--- /dev/null
+++ b/contrib/btree_gist/btree_time.c
@@ -0,0 +1,334 @@
+/*
+ * contrib/btree_gist/btree_time.c
+ */
+#include "postgres.h"
+
+#include "btree_gist.h"
+#include "btree_utils_num.h"
+#include "utils/builtins.h"
+#include "utils/date.h"
+#include "utils/timestamp.h"
+
+typedef struct
+{
+ TimeADT lower;
+ TimeADT upper;
+} timeKEY;
+
+/*
+** time ops
+*/
+PG_FUNCTION_INFO_V1(gbt_time_compress);
+PG_FUNCTION_INFO_V1(gbt_timetz_compress);
+PG_FUNCTION_INFO_V1(gbt_time_fetch);
+PG_FUNCTION_INFO_V1(gbt_time_union);
+PG_FUNCTION_INFO_V1(gbt_time_picksplit);
+PG_FUNCTION_INFO_V1(gbt_time_consistent);
+PG_FUNCTION_INFO_V1(gbt_time_distance);
+PG_FUNCTION_INFO_V1(gbt_timetz_consistent);
+PG_FUNCTION_INFO_V1(gbt_time_penalty);
+PG_FUNCTION_INFO_V1(gbt_time_same);
+
+
+#ifdef USE_FLOAT8_BYVAL
+#define TimeADTGetDatumFast(X) TimeADTGetDatum(X)
+#else
+#define TimeADTGetDatumFast(X) PointerGetDatum(&(X))
+#endif
+
+
+static bool
+gbt_timegt(const void *a, const void *b, FmgrInfo *flinfo)
+{
+ const TimeADT *aa = (const TimeADT *) a;
+ const TimeADT *bb = (const TimeADT *) b;
+
+ return DatumGetBool(DirectFunctionCall2(time_gt,
+ TimeADTGetDatumFast(*aa),
+ TimeADTGetDatumFast(*bb)));
+}
+
+static bool
+gbt_timege(const void *a, const void *b, FmgrInfo *flinfo)
+{
+ const TimeADT *aa = (const TimeADT *) a;
+ const TimeADT *bb = (const TimeADT *) b;
+
+ return DatumGetBool(DirectFunctionCall2(time_ge,
+ TimeADTGetDatumFast(*aa),
+ TimeADTGetDatumFast(*bb)));
+}
+
+static bool
+gbt_timeeq(const void *a, const void *b, FmgrInfo *flinfo)
+{
+ const TimeADT *aa = (const TimeADT *) a;
+ const TimeADT *bb = (const TimeADT *) b;
+
+ return DatumGetBool(DirectFunctionCall2(time_eq,
+ TimeADTGetDatumFast(*aa),
+ TimeADTGetDatumFast(*bb)));
+}
+
+static bool
+gbt_timele(const void *a, const void *b, FmgrInfo *flinfo)
+{
+ const TimeADT *aa = (const TimeADT *) a;
+ const TimeADT *bb = (const TimeADT *) b;
+
+ return DatumGetBool(DirectFunctionCall2(time_le,
+ TimeADTGetDatumFast(*aa),
+ TimeADTGetDatumFast(*bb)));
+}
+
+static bool
+gbt_timelt(const void *a, const void *b, FmgrInfo *flinfo)
+{
+ const TimeADT *aa = (const TimeADT *) a;
+ const TimeADT *bb = (const TimeADT *) b;
+
+ return DatumGetBool(DirectFunctionCall2(time_lt,
+ TimeADTGetDatumFast(*aa),
+ TimeADTGetDatumFast(*bb)));
+}
+
+
+
+static int
+gbt_timekey_cmp(const void *a, const void *b, FmgrInfo *flinfo)
+{
+ timeKEY *ia = (timeKEY *) (((const Nsrt *) a)->t);
+ timeKEY *ib = (timeKEY *) (((const Nsrt *) b)->t);
+ int res;
+
+ res = DatumGetInt32(DirectFunctionCall2(time_cmp, TimeADTGetDatumFast(ia->lower), TimeADTGetDatumFast(ib->lower)));
+ if (res == 0)
+ return DatumGetInt32(DirectFunctionCall2(time_cmp, TimeADTGetDatumFast(ia->upper), TimeADTGetDatumFast(ib->upper)));
+
+ return res;
+}
+
+static float8
+gbt_time_dist(const void *a, const void *b, FmgrInfo *flinfo)
+{
+ const TimeADT *aa = (const TimeADT *) a;
+ const TimeADT *bb = (const TimeADT *) b;
+ Interval *i;
+
+ i = DatumGetIntervalP(DirectFunctionCall2(time_mi_time,
+ TimeADTGetDatumFast(*aa),
+ TimeADTGetDatumFast(*bb)));
+ return (float8) Abs(INTERVAL_TO_SEC(i));
+}
+
+
+static const gbtree_ninfo tinfo =
+{
+ gbt_t_time,
+ sizeof(TimeADT),
+ 16, /* sizeof(gbtreekey16) */
+ gbt_timegt,
+ gbt_timege,
+ gbt_timeeq,
+ gbt_timele,
+ gbt_timelt,
+ gbt_timekey_cmp,
+ gbt_time_dist
+};
+
+
+PG_FUNCTION_INFO_V1(time_dist);
+Datum
+time_dist(PG_FUNCTION_ARGS)
+{
+ Datum diff = DirectFunctionCall2(time_mi_time,
+ PG_GETARG_DATUM(0),
+ PG_GETARG_DATUM(1));
+
+ PG_RETURN_INTERVAL_P(abs_interval(DatumGetIntervalP(diff)));
+}
+
+
+/**************************************************
+ * time ops
+ **************************************************/
+
+
+
+Datum
+gbt_time_compress(PG_FUNCTION_ARGS)
+{
+ GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+
+ PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
+}
+
+
+Datum
+gbt_timetz_compress(PG_FUNCTION_ARGS)
+{
+ GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+ GISTENTRY *retval;
+
+ if (entry->leafkey)
+ {
+ timeKEY *r = (timeKEY *) palloc(sizeof(timeKEY));
+ TimeTzADT *tz = DatumGetTimeTzADTP(entry->key);
+ TimeADT tmp;
+
+ retval = palloc(sizeof(GISTENTRY));
+
+ /* We are using the time + zone only to compress */
+ tmp = tz->time + (tz->zone * INT64CONST(1000000));
+ r->lower = r->upper = tmp;
+ gistentryinit(*retval, PointerGetDatum(r),
+ entry->rel, entry->page,
+ entry->offset, false);
+ }
+ else
+ retval = entry;
+ PG_RETURN_POINTER(retval);
+}
+
+Datum
+gbt_time_fetch(PG_FUNCTION_ARGS)
+{
+ GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+
+ PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
+}
+
+Datum
+gbt_time_consistent(PG_FUNCTION_ARGS)
+{
+ GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+ TimeADT query = PG_GETARG_TIMEADT(1);
+ StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
+
+ /* Oid subtype = PG_GETARG_OID(3); */
+ bool *recheck = (bool *) PG_GETARG_POINTER(4);
+ timeKEY *kkk = (timeKEY *) 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_time_distance(PG_FUNCTION_ARGS)
+{
+ GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+ TimeADT query = PG_GETARG_TIMEADT(1);
+
+ /* Oid subtype = PG_GETARG_OID(3); */
+ timeKEY *kkk = (timeKEY *) 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_timetz_consistent(PG_FUNCTION_ARGS)
+{
+ GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+ TimeTzADT *query = PG_GETARG_TIMETZADT_P(1);
+ StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
+
+ /* Oid subtype = PG_GETARG_OID(3); */
+ bool *recheck = (bool *) PG_GETARG_POINTER(4);
+ timeKEY *kkk = (timeKEY *) DatumGetPointer(entry->key);
+ TimeADT qqq;
+ GBT_NUMKEY_R key;
+
+ /* All cases served by this function are inexact */
+ *recheck = true;
+
+ qqq = query->time + (query->zone * INT64CONST(1000000));
+
+ key.lower = (GBT_NUMKEY *) &kkk->lower;
+ key.upper = (GBT_NUMKEY *) &kkk->upper;
+
+ PG_RETURN_BOOL(gbt_num_consistent(&key, (void *) &qqq, &strategy,
+ GIST_LEAF(entry), &tinfo, fcinfo->flinfo));
+}
+
+
+Datum
+gbt_time_union(PG_FUNCTION_ARGS)
+{
+ GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
+ void *out = palloc(sizeof(timeKEY));
+
+ *(int *) PG_GETARG_POINTER(1) = sizeof(timeKEY);
+ PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo, fcinfo->flinfo));
+}
+
+
+Datum
+gbt_time_penalty(PG_FUNCTION_ARGS)
+{
+ timeKEY *origentry = (timeKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
+ timeKEY *newentry = (timeKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
+ float *result = (float *) PG_GETARG_POINTER(2);
+ Interval *intr;
+ double res;
+ double res2;
+
+ intr = DatumGetIntervalP(DirectFunctionCall2(time_mi_time,
+ TimeADTGetDatumFast(newentry->upper),
+ TimeADTGetDatumFast(origentry->upper)));
+ res = INTERVAL_TO_SEC(intr);
+ res = Max(res, 0);
+
+ intr = DatumGetIntervalP(DirectFunctionCall2(time_mi_time,
+ TimeADTGetDatumFast(origentry->lower),
+ TimeADTGetDatumFast(newentry->lower)));
+ res2 = INTERVAL_TO_SEC(intr);
+ res2 = Max(res2, 0);
+
+ res += res2;
+
+ *result = 0.0;
+
+ if (res > 0)
+ {
+ intr = DatumGetIntervalP(DirectFunctionCall2(time_mi_time,
+ TimeADTGetDatumFast(origentry->upper),
+ TimeADTGetDatumFast(origentry->lower)));
+ *result += FLT_MIN;
+ *result += (float) (res / (res + INTERVAL_TO_SEC(intr)));
+ *result *= (FLT_MAX / (((GISTENTRY *) PG_GETARG_POINTER(0))->rel->rd_att->natts + 1));
+ }
+
+ PG_RETURN_POINTER(result);
+}
+
+
+Datum
+gbt_time_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_time_same(PG_FUNCTION_ARGS)
+{
+ timeKEY *b1 = (timeKEY *) PG_GETARG_POINTER(0);
+ timeKEY *b2 = (timeKEY *) 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);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-15 10:50:52 +0000