btree_ts.c File Reference

#include "postgres.h"
#include <limits.h>
#include "btree_gist.h"
#include "btree_utils_num.h"
#include "utils/builtins.h"
#include "utils/datetime.h"

Include dependency graph for btree_ts.c:

Go to the source code of this file.

Data Structures
struct	tsKEY

Macros
#define	TimestampGetDatumFast(X)   PointerGetDatum(&(X))
#define	penalty_check_max_float(val)

Functions
	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)
static bool	gbt_tsgt (const void *a, const void *b, FmgrInfo *flinfo)
static bool	gbt_tsge (const void *a, const void *b, FmgrInfo *flinfo)
static bool	gbt_tseq (const void *a, const void *b, FmgrInfo *flinfo)
static bool	gbt_tsle (const void *a, const void *b, FmgrInfo *flinfo)
static bool	gbt_tslt (const void *a, const void *b, FmgrInfo *flinfo)
static int	gbt_tskey_cmp (const void *a, const void *b, FmgrInfo *flinfo)
static float8	gbt_ts_dist (const void *a, const void *b, FmgrInfo *flinfo)
	PG_FUNCTION_INFO_V1 (ts_dist)
Datum	ts_dist (PG_FUNCTION_ARGS)
	PG_FUNCTION_INFO_V1 (tstz_dist)
Datum	tstz_dist (PG_FUNCTION_ARGS)
static Timestamp	tstz_to_ts_gmt (TimestampTz ts)
Datum	gbt_ts_compress (PG_FUNCTION_ARGS)
Datum	gbt_tstz_compress (PG_FUNCTION_ARGS)
Datum	gbt_ts_fetch (PG_FUNCTION_ARGS)
Datum	gbt_ts_consistent (PG_FUNCTION_ARGS)
Datum	gbt_ts_distance (PG_FUNCTION_ARGS)
Datum	gbt_tstz_consistent (PG_FUNCTION_ARGS)
Datum	gbt_tstz_distance (PG_FUNCTION_ARGS)
Datum	gbt_ts_union (PG_FUNCTION_ARGS)
Datum	gbt_ts_penalty (PG_FUNCTION_ARGS)
Datum	gbt_ts_picksplit (PG_FUNCTION_ARGS)
Datum	gbt_ts_same (PG_FUNCTION_ARGS)

Variables
static const gbtree_ninfo	tinfo

Macro Definition Documentation

penalty_check_max_float

#define penalty_check_max_float

(

val

)

Value:

do { \
        if ( val > FLT_MAX ) \
                val = FLT_MAX; \
        if ( val < -FLT_MAX ) \
                val = -FLT_MAX; \
} while(false);

Definition at line 347 of file btree_ts.c.

Referenced by gbt_ts_penalty().

TimestampGetDatumFast

#define TimestampGetDatumFast

(

X

)

PointerGetDatum(&(X))

Definition at line 38 of file btree_ts.c.

Referenced by gbt_ts_dist(), gbt_tseq(), gbt_tsge(), gbt_tsgt(), gbt_tskey_cmp(), gbt_tsle(), and gbt_tslt().

Function Documentation

gbt_ts_compress()

Datum gbt_ts_compress

(

PG_FUNCTION_ARGS

)

Definition at line 207 of file btree_ts.c.

References gbt_num_compress(), PG_GETARG_POINTER, and PG_RETURN_POINTER.

{
    GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);

    PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
}

gbt_ts_consistent()

Datum gbt_ts_consistent

(

PG_FUNCTION_ARGS

)

Definition at line 250 of file btree_ts.c.

References DatumGetPointer, gbt_num_consistent(), GIST_LEAF, GISTENTRY::key, tsKEY::lower, GBT_NUMKEY_R::lower, PG_GETARG_POINTER, PG_GETARG_TIMESTAMP, PG_GETARG_UINT16, PG_RETURN_BOOL, tsKEY::upper, and GBT_NUMKEY_R::upper.

{
    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)
        );
}

gbt_ts_dist()

static float8 gbt_ts_dist ( const void *  a, const void *  b, FmgrInfo *  flinfo  )

static

Definition at line 113 of file btree_ts.c.

References Abs, DatumGetIntervalP, DirectFunctionCall2, get_float8_infinity(), i, INTERVAL_TO_SEC, timestamp_mi(), TIMESTAMP_NOT_FINITE, and TimestampGetDatumFast.

{
    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));
}

gbt_ts_distance()

Datum gbt_ts_distance

(

PG_FUNCTION_ARGS

)

Definition at line 273 of file btree_ts.c.

References DatumGetPointer, gbt_num_distance(), GIST_LEAF, GISTENTRY::key, tsKEY::lower, GBT_NUMKEY_R::lower, PG_GETARG_POINTER, PG_GETARG_TIMESTAMP, PG_RETURN_FLOAT8, tsKEY::upper, and GBT_NUMKEY_R::upper.

{
    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)
        );
}

gbt_ts_fetch()

Datum gbt_ts_fetch

(

PG_FUNCTION_ARGS

)

Definition at line 242 of file btree_ts.c.

References gbt_num_fetch(), PG_GETARG_POINTER, and PG_RETURN_POINTER.

{
    GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);

    PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
}

gbt_ts_penalty()

Datum gbt_ts_penalty

(

PG_FUNCTION_ARGS

)

Definition at line 356 of file btree_ts.c.

References DatumGetPointer, tsKEY::lower, penalty_check_max_float, penalty_num, PG_GETARG_POINTER, PG_RETURN_POINTER, and tsKEY::upper.

{
    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);

}

gbt_ts_picksplit()

Datum gbt_ts_picksplit

(

PG_FUNCTION_ARGS

)

Definition at line 387 of file btree_ts.c.

References gbt_num_picksplit(), PG_GETARG_POINTER, and PG_RETURN_POINTER.

{
    PG_RETURN_POINTER(gbt_num_picksplit(
                                        (GistEntryVector *) PG_GETARG_POINTER(0),
                                        (GIST_SPLITVEC *) PG_GETARG_POINTER(1),
                                        &tinfo, fcinfo->flinfo
                                        ));
}

gbt_ts_same()

Datum gbt_ts_same

(

PG_FUNCTION_ARGS

)

Definition at line 397 of file btree_ts.c.

References gbt_num_same(), PG_GETARG_POINTER, and PG_RETURN_POINTER.

{
    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);
}

gbt_ts_union()

Datum gbt_ts_union

(

PG_FUNCTION_ARGS

)

Definition at line 337 of file btree_ts.c.

References gbt_num_union(), palloc(), PG_GETARG_POINTER, and PG_RETURN_POINTER.

{
    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));
}

gbt_tseq()

static bool gbt_tseq ( const void *  a, const void *  b, FmgrInfo *  flinfo  )

static

Definition at line 65 of file btree_ts.c.

References DatumGetBool, DirectFunctionCall2, timestamp_eq(), and TimestampGetDatumFast.

{
    const Timestamp *aa = (const Timestamp *) a;
    const Timestamp *bb = (const Timestamp *) b;

    return DatumGetBool(DirectFunctionCall2(timestamp_eq,
                                            TimestampGetDatumFast(*aa),
                                            TimestampGetDatumFast(*bb)));
}

gbt_tsge()

static bool gbt_tsge ( const void *  a, const void *  b, FmgrInfo *  flinfo  )

static

Definition at line 54 of file btree_ts.c.

References DatumGetBool, DirectFunctionCall2, timestamp_ge(), and TimestampGetDatumFast.

{
    const Timestamp *aa = (const Timestamp *) a;
    const Timestamp *bb = (const Timestamp *) b;

    return DatumGetBool(DirectFunctionCall2(timestamp_ge,
                                            TimestampGetDatumFast(*aa),
                                            TimestampGetDatumFast(*bb)));
}

gbt_tsgt()

static bool gbt_tsgt ( const void *  a, const void *  b, FmgrInfo *  flinfo  )

static

Definition at line 43 of file btree_ts.c.

References DatumGetBool, DirectFunctionCall2, timestamp_gt(), and TimestampGetDatumFast.

{
    const Timestamp *aa = (const Timestamp *) a;
    const Timestamp *bb = (const Timestamp *) b;

    return DatumGetBool(DirectFunctionCall2(timestamp_gt,
                                            TimestampGetDatumFast(*aa),
                                            TimestampGetDatumFast(*bb)));
}

gbt_tskey_cmp()

static int gbt_tskey_cmp ( const void *  a, const void *  b, FmgrInfo *  flinfo  )

static

Definition at line 99 of file btree_ts.c.

References DatumGetInt32, DirectFunctionCall2, tsKEY::lower, timestamp_cmp(), TimestampGetDatumFast, and tsKEY::upper.

{
    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;
}

gbt_tsle()

static bool gbt_tsle ( const void *  a, const void *  b, FmgrInfo *  flinfo  )

static

Definition at line 76 of file btree_ts.c.

References DatumGetBool, DirectFunctionCall2, timestamp_le(), and TimestampGetDatumFast.

{
    const Timestamp *aa = (const Timestamp *) a;
    const Timestamp *bb = (const Timestamp *) b;

    return DatumGetBool(DirectFunctionCall2(timestamp_le,
                                            TimestampGetDatumFast(*aa),
                                            TimestampGetDatumFast(*bb)));
}

gbt_tslt()

static bool gbt_tslt ( const void *  a, const void *  b, FmgrInfo *  flinfo  )

static

Definition at line 87 of file btree_ts.c.

References DatumGetBool, DirectFunctionCall2, timestamp_lt(), and TimestampGetDatumFast.

{
    const Timestamp *aa = (const Timestamp *) a;
    const Timestamp *bb = (const Timestamp *) b;

    return DatumGetBool(DirectFunctionCall2(timestamp_lt,
                                            TimestampGetDatumFast(*aa),
                                            TimestampGetDatumFast(*bb)));
}

gbt_tstz_compress()

Datum gbt_tstz_compress

(

PG_FUNCTION_ARGS

)

Definition at line 216 of file btree_ts.c.

References DatumGetTimestampTz, gistentryinit, gmt, GISTENTRY::key, GISTENTRY::leafkey, tsKEY::lower, GISTENTRY::offset, GISTENTRY::page, palloc(), PG_GETARG_POINTER, PG_RETURN_POINTER, PointerGetDatum, GISTENTRY::rel, tstz_to_ts_gmt(), and tsKEY::upper.

{
    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);
}

gbt_tstz_consistent()

Datum gbt_tstz_consistent

(

PG_FUNCTION_ARGS

)

Definition at line 291 of file btree_ts.c.

References DatumGetPointer, gbt_num_consistent(), GIST_LEAF, GISTENTRY::key, GBT_NUMKEY_R::lower, MAXALIGN, PG_GETARG_POINTER, PG_GETARG_TIMESTAMPTZ, PG_GETARG_UINT16, PG_RETURN_BOOL, gbtree_ninfo::size, tstz_to_ts_gmt(), and GBT_NUMKEY_R::upper.

{
    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)
        );
}

gbt_tstz_distance()

Datum gbt_tstz_distance

(

PG_FUNCTION_ARGS

)

Definition at line 316 of file btree_ts.c.

References DatumGetPointer, gbt_num_distance(), GIST_LEAF, GISTENTRY::key, GBT_NUMKEY_R::lower, MAXALIGN, PG_GETARG_POINTER, PG_GETARG_TIMESTAMPTZ, PG_RETURN_FLOAT8, gbtree_ninfo::size, tstz_to_ts_gmt(), and GBT_NUMKEY_R::upper.

{
    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)
        );
}

PG_FUNCTION_INFO_V1() [1/13]

PG_FUNCTION_INFO_V1

(

gbt_ts_compress

)

Referenced by ts_dist().

PG_FUNCTION_INFO_V1() [2/13]

PG_FUNCTION_INFO_V1

(

gbt_tstz_compress

)

PG_FUNCTION_INFO_V1() [3/13]

PG_FUNCTION_INFO_V1

(

gbt_ts_fetch

)

PG_FUNCTION_INFO_V1() [4/13]

PG_FUNCTION_INFO_V1

(

gbt_ts_union

)

PG_FUNCTION_INFO_V1() [5/13]

PG_FUNCTION_INFO_V1

(

gbt_ts_picksplit

)

PG_FUNCTION_INFO_V1() [6/13]

PG_FUNCTION_INFO_V1

(

gbt_ts_consistent

)

PG_FUNCTION_INFO_V1() [7/13]

PG_FUNCTION_INFO_V1

(

gbt_ts_distance

)

PG_FUNCTION_INFO_V1() [8/13]

PG_FUNCTION_INFO_V1

(

gbt_tstz_consistent

)

PG_FUNCTION_INFO_V1() [9/13]

PG_FUNCTION_INFO_V1

(

gbt_tstz_distance

)

PG_FUNCTION_INFO_V1() [10/13]

PG_FUNCTION_INFO_V1

(

gbt_ts_penalty

)

PG_FUNCTION_INFO_V1() [11/13]

PG_FUNCTION_INFO_V1

(

gbt_ts_same

)

PG_FUNCTION_INFO_V1() [12/13]

PG_FUNCTION_INFO_V1

(

ts_dist

)

PG_FUNCTION_INFO_V1() [13/13]

PG_FUNCTION_INFO_V1

(

tstz_dist

)

ts_dist()

Datum ts_dist

(

PG_FUNCTION_ARGS

)

Definition at line 146 of file btree_ts.c.

References abs_interval(), DatumGetIntervalP, Interval::day, DirectFunctionCall2, Interval::month, palloc(), PG_FUNCTION_INFO_V1(), PG_GETARG_DATUM, PG_GETARG_TIMESTAMP, PG_INT64_MAX, PG_RETURN_INTERVAL_P, Interval::time, timestamp_mi(), TIMESTAMP_NOT_FINITE, and tstz_dist().

{
    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));
}

tstz_dist()

Datum tstz_dist

(

PG_FUNCTION_ARGS

)

Definition at line 170 of file btree_ts.c.

References abs_interval(), DatumGetIntervalP, Interval::day, DirectFunctionCall2, Interval::month, palloc(), PG_GETARG_DATUM, PG_GETARG_TIMESTAMPTZ, PG_INT64_MAX, PG_RETURN_INTERVAL_P, Interval::time, timestamp_mi(), and TIMESTAMP_NOT_FINITE.

Referenced by ts_dist().

{
    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));
}

tstz_to_ts_gmt()

static Timestamp tstz_to_ts_gmt ( TimestampTz  ts )

inlinestatic

Definition at line 199 of file btree_ts.c.

Referenced by gbt_tstz_compress(), gbt_tstz_consistent(), and gbt_tstz_distance().

{
    /* No timezone correction is needed, since GMT is offset 0 by definition */
    return (Timestamp) ts;
}

Variable Documentation

tinfo

const gbtree_ninfo tinfo

static

Initial value:

=
{
    gbt_t_ts,
    sizeof(Timestamp),
    16,                         
    gbt_tsgt,
    gbt_tsge,
    gbt_tseq,
    gbt_tsle,
    gbt_tslt,
    gbt_tskey_cmp,
    gbt_ts_dist
}

Definition at line 129 of file btree_ts.c.