mirror of
https://github.com/postgres/postgres.git
synced 2025-07-27 12:41:57 +03:00
We just released new version of contrib/btree_gist
(7.3 and current CVS) with support of int8, float4, float8 in addition to int4. Thanks Janko Richter for contribution. Oleg Bartunov
This commit is contained in:
282
contrib/btree_gist/btree_ts.c
Normal file
282
contrib/btree_gist/btree_ts.c
Normal file
@ -0,0 +1,282 @@
|
||||
#include "btree_gist.h"
|
||||
|
||||
|
||||
typedef struct tskey
|
||||
{
|
||||
Timestamp lower;
|
||||
Timestamp upper;
|
||||
} TSKEY;
|
||||
|
||||
|
||||
/*
|
||||
** tskey in/out
|
||||
*/
|
||||
PG_FUNCTION_INFO_V1(tskey_in);
|
||||
PG_FUNCTION_INFO_V1(tskey_out);
|
||||
Datum tskey_in(PG_FUNCTION_ARGS);
|
||||
Datum tskey_out(PG_FUNCTION_ARGS);
|
||||
|
||||
|
||||
/*
|
||||
** timestamp ops
|
||||
*/
|
||||
PG_FUNCTION_INFO_V1(gts_compress);
|
||||
PG_FUNCTION_INFO_V1(gts_union);
|
||||
PG_FUNCTION_INFO_V1(gts_picksplit);
|
||||
PG_FUNCTION_INFO_V1(gts_consistent);
|
||||
PG_FUNCTION_INFO_V1(gts_penalty);
|
||||
PG_FUNCTION_INFO_V1(gts_same);
|
||||
|
||||
Datum gts_compress(PG_FUNCTION_ARGS);
|
||||
Datum gts_union(PG_FUNCTION_ARGS);
|
||||
Datum gts_picksplit(PG_FUNCTION_ARGS);
|
||||
Datum gts_consistent(PG_FUNCTION_ARGS);
|
||||
Datum gts_penalty(PG_FUNCTION_ARGS);
|
||||
Datum gts_same(PG_FUNCTION_ARGS);
|
||||
|
||||
static void gts_binary_union(Datum *r1, char *r2);
|
||||
static int tskey_cmp(const void *a, const void *b);
|
||||
|
||||
#define TimestampGetDatumFast(X) Float8GetDatumFast(X)
|
||||
|
||||
/* define for comparison */
|
||||
#define TSGE( ts1, ts2 ) (DatumGetBool(DirectFunctionCall2( \
|
||||
timestamp_ge, \
|
||||
PointerGetDatum( ts1 ), \
|
||||
PointerGetDatum( ts2 ) \
|
||||
)))
|
||||
#define TSGT( ts1, ts2 ) (DatumGetBool(DirectFunctionCall2( \
|
||||
timestamp_gt, \
|
||||
PointerGetDatum( ts1 ), \
|
||||
PointerGetDatum( ts2 ) \
|
||||
)))
|
||||
#define TSEQ( ts1, ts2 ) (DatumGetBool(DirectFunctionCall2( \
|
||||
timestamp_eq, \
|
||||
PointerGetDatum( ts1 ), \
|
||||
PointerGetDatum( ts2 ) \
|
||||
)))
|
||||
#define TSLT( ts1, ts2 ) (DatumGetBool(DirectFunctionCall2( \
|
||||
timestamp_lt, \
|
||||
PointerGetDatum( ts1 ), \
|
||||
PointerGetDatum( ts2 ) \
|
||||
)))
|
||||
#define TSLE( ts1, ts2 ) (DatumGetBool(DirectFunctionCall2( \
|
||||
timestamp_le, \
|
||||
PointerGetDatum( ts1 ), \
|
||||
PointerGetDatum( ts2 ) \
|
||||
)))
|
||||
|
||||
|
||||
|
||||
/**************************************************
|
||||
* timestamp ops
|
||||
**************************************************/
|
||||
|
||||
Datum
|
||||
gts_compress(PG_FUNCTION_ARGS)
|
||||
{
|
||||
GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
|
||||
GISTENTRY *retval;
|
||||
|
||||
if (entry->leafkey)
|
||||
{
|
||||
TSKEY *r = (TSKEY *) palloc(sizeof(TSKEY));
|
||||
|
||||
retval = palloc(sizeof(GISTENTRY));
|
||||
r->lower = r->upper = *(Timestamp *) (entry->key);
|
||||
gistentryinit(*retval, PointerGetDatum(r),
|
||||
entry->rel, entry->page,
|
||||
entry->offset, sizeof(TSKEY), FALSE);
|
||||
}
|
||||
else
|
||||
retval = entry;
|
||||
PG_RETURN_POINTER(retval);
|
||||
}
|
||||
|
||||
Datum
|
||||
gts_consistent(PG_FUNCTION_ARGS)
|
||||
{
|
||||
GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
|
||||
Timestamp *query = (Timestamp *) PG_GETARG_POINTER(1);
|
||||
StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
|
||||
bool retval;
|
||||
TSKEY *key;
|
||||
|
||||
/*
|
||||
* * if entry is not leaf, use gbox_internal_consistent, * else use
|
||||
* gbox_leaf_consistent
|
||||
*/
|
||||
if (!entry->key)
|
||||
return FALSE;
|
||||
key = (TSKEY *) DatumGetPointer(entry->key);
|
||||
|
||||
switch (strategy)
|
||||
{
|
||||
case BTLessEqualStrategyNumber:
|
||||
retval = TSGE(query, &(key->lower));
|
||||
break;
|
||||
case BTLessStrategyNumber:
|
||||
if (GIST_LEAF(entry))
|
||||
retval = TSGT(query, &(key->lower));
|
||||
else
|
||||
retval = TSGE(query, &(key->lower));
|
||||
break;
|
||||
case BTEqualStrategyNumber:
|
||||
/* in leaf page key->lower always = key->upper */
|
||||
if (GIST_LEAF(entry))
|
||||
retval = TSEQ(query, &(key->lower));
|
||||
else
|
||||
retval = (TSLE(&(key->lower), query) && TSLE(query, &(key->upper)));
|
||||
break;
|
||||
case BTGreaterStrategyNumber:
|
||||
if (GIST_LEAF(entry))
|
||||
retval = TSLT(query, &(key->upper));
|
||||
else
|
||||
retval = TSLE(query, &(key->upper));
|
||||
break;
|
||||
case BTGreaterEqualStrategyNumber:
|
||||
retval = TSLE(query, &(key->upper));
|
||||
break;
|
||||
default:
|
||||
retval = FALSE;
|
||||
}
|
||||
PG_RETURN_BOOL(retval);
|
||||
}
|
||||
|
||||
Datum
|
||||
gts_union(PG_FUNCTION_ARGS)
|
||||
{
|
||||
bytea *entryvec = (bytea *) PG_GETARG_POINTER(0);
|
||||
int i,
|
||||
numranges;
|
||||
TSKEY *cur,
|
||||
*out = palloc(sizeof(TSKEY));
|
||||
|
||||
numranges = (VARSIZE(entryvec) - VARHDRSZ) / sizeof(GISTENTRY);
|
||||
*(int *) PG_GETARG_POINTER(1) = sizeof(TSKEY);
|
||||
|
||||
cur = (TSKEY *) DatumGetPointer((((GISTENTRY *) (VARDATA(entryvec)))[0].key));
|
||||
out->lower = cur->lower;
|
||||
out->upper = cur->upper;
|
||||
|
||||
for (i = 1; i < numranges; i++)
|
||||
{
|
||||
cur = (TSKEY *) DatumGetPointer((((GISTENTRY *) (VARDATA(entryvec)))[i].key));
|
||||
if (TSGT(&out->lower, &cur->lower))
|
||||
out->lower = cur->lower;
|
||||
if (TSLT(&out->upper, &cur->upper))
|
||||
out->upper = cur->upper;
|
||||
}
|
||||
|
||||
PG_RETURN_POINTER(out);
|
||||
}
|
||||
|
||||
Datum
|
||||
gts_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);
|
||||
Interval *intr;
|
||||
|
||||
intr = DatumGetIntervalP(DirectFunctionCall2(
|
||||
timestamp_mi,
|
||||
TimestampGetDatumFast(newentry->upper),
|
||||
TimestampGetDatumFast(origentry->upper)));
|
||||
|
||||
/* see interval_larger */
|
||||
*result = Max(intr->time + intr->month * (30.0 * 86400), 0);
|
||||
pfree(intr);
|
||||
|
||||
intr = DatumGetIntervalP(DirectFunctionCall2(
|
||||
timestamp_mi,
|
||||
TimestampGetDatumFast(origentry->lower),
|
||||
TimestampGetDatumFast(newentry->lower)));
|
||||
|
||||
/* see interval_larger */
|
||||
*result += Max(intr->time + intr->month * (30.0 * 86400), 0);
|
||||
pfree(intr);
|
||||
|
||||
PG_RETURN_POINTER(result);
|
||||
}
|
||||
|
||||
Datum
|
||||
gts_picksplit(PG_FUNCTION_ARGS)
|
||||
{
|
||||
PG_RETURN_POINTER(btree_picksplit(
|
||||
(bytea *) PG_GETARG_POINTER(0),
|
||||
(GIST_SPLITVEC *) PG_GETARG_POINTER(1),
|
||||
gts_binary_union,
|
||||
tskey_cmp
|
||||
));
|
||||
}
|
||||
|
||||
Datum
|
||||
gts_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);
|
||||
|
||||
if (b1 && b2)
|
||||
*result = (TSEQ(&(b1->lower), &(b2->lower)) && TSEQ(&(b1->upper), &(b2->upper))) ? TRUE : FALSE;
|
||||
else
|
||||
*result = (b1 == NULL && b2 == NULL) ? TRUE : FALSE;
|
||||
PG_RETURN_POINTER(result);
|
||||
}
|
||||
|
||||
static void
|
||||
gts_binary_union(Datum *r1, char *r2)
|
||||
{
|
||||
TSKEY *b1;
|
||||
TSKEY *b2 = (TSKEY *) r2;
|
||||
|
||||
if (!DatumGetPointer(*r1))
|
||||
{
|
||||
*r1 = PointerGetDatum(palloc(sizeof(TSKEY)));
|
||||
b1 = (TSKEY *) DatumGetPointer(*r1);
|
||||
b1->upper = b2->upper;
|
||||
b1->lower = b2->lower;
|
||||
}
|
||||
else
|
||||
{
|
||||
b1 = (TSKEY *) DatumGetPointer(*r1);
|
||||
|
||||
b1->lower = (TSGT(&b1->lower, &b2->lower)) ?
|
||||
b2->lower : b1->lower;
|
||||
b1->upper = (TSGT(&b1->upper, &b2->upper)) ?
|
||||
b1->upper : b2->upper;
|
||||
}
|
||||
}
|
||||
|
||||
static int
|
||||
tskey_cmp(const void *a, const void *b)
|
||||
{
|
||||
return DatumGetInt32(
|
||||
DirectFunctionCall2(
|
||||
timestamp_cmp,
|
||||
TimestampGetDatumFast(((TSKEY *) (((RIX *) a)->r))->lower),
|
||||
TimestampGetDatumFast(((TSKEY *) (((RIX *) b)->r))->lower)
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
|
||||
/**************************************************
|
||||
* In/Out for keys, not really needed
|
||||
**************************************************/
|
||||
|
||||
Datum
|
||||
tskey_in(PG_FUNCTION_ARGS)
|
||||
{
|
||||
elog(ERROR, "Not implemented");
|
||||
PG_RETURN_POINTER(NULL);
|
||||
}
|
||||
|
||||
Datum
|
||||
tskey_out(PG_FUNCTION_ARGS)
|
||||
{
|
||||
elog(ERROR, "Not implemented");
|
||||
PG_RETURN_POINTER(NULL);
|
||||
}
|
Reference in New Issue
Block a user