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Data Structures | Defines | Functions | Variables

btree_ts.c File Reference

#include "postgres.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

Defines

#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_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)
Datum gbt_ts_compress (PG_FUNCTION_ARGS)
Datum gbt_tstz_compress (PG_FUNCTION_ARGS)
Datum gbt_ts_union (PG_FUNCTION_ARGS)
Datum gbt_ts_picksplit (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_penalty (PG_FUNCTION_ARGS)
Datum gbt_ts_same (PG_FUNCTION_ARGS)
static bool gbt_tsgt (const void *a, const void *b)
static bool gbt_tsge (const void *a, const void *b)
static bool gbt_tseq (const void *a, const void *b)
static bool gbt_tsle (const void *a, const void *b)
static bool gbt_tslt (const void *a, const void *b)
static int gbt_tskey_cmp (const void *a, const void *b)
static float8 gbt_ts_dist (const void *a, const void *b)
 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)

Variables

static const gbtree_ninfo tinfo

Define Documentation

#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 374 of file btree_ts.c.

Referenced by gbt_ts_penalty().

#define TimestampGetDatumFast (   X  )     PointerGetDatum(&(X))

Definition at line 46 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

Datum gbt_ts_compress ( PG_FUNCTION_ARGS   ) 

Definition at line 240 of file btree_ts.c.

References gbt_num_compress(), PG_GETARG_POINTER, and PG_RETURN_POINTER.

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

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

Datum gbt_ts_consistent ( PG_FUNCTION_ARGS   ) 

Definition at line 277 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)
        );
}

static float8 gbt_ts_dist ( const void *  a,
const void *  b 
) [static]
Datum gbt_ts_distance ( PG_FUNCTION_ARGS   ) 

Definition at line 300 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)
        );
}

Datum gbt_ts_penalty ( PG_FUNCTION_ARGS   ) 

Definition at line 383 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 allways 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   ) 
Datum gbt_ts_same ( PG_FUNCTION_ARGS   ) 

Definition at line 425 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);
    PG_RETURN_POINTER(result);
}

Datum gbt_ts_union ( PG_FUNCTION_ARGS   ) 

Definition at line 364 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));
}

static bool gbt_tseq ( const void *  a,
const void *  b 
) [static]

Definition at line 73 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)));
}

static bool gbt_tsge ( const void *  a,
const void *  b 
) [static]

Definition at line 62 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)));
}

static bool gbt_tsgt ( const void *  a,
const void *  b 
) [static]

Definition at line 51 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)));
}

static int gbt_tskey_cmp ( const void *  a,
const void *  b 
) [static]

Definition at line 107 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;
}

static bool gbt_tsle ( const void *  a,
const void *  b 
) [static]

Definition at line 84 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)));
}

static bool gbt_tslt ( const void *  a,
const void *  b 
) [static]

Definition at line 95 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)));
}

Datum gbt_tstz_compress ( PG_FUNCTION_ARGS   ) 

Definition at line 250 of file btree_ts.c.

References DatumGetTimestampTz, FALSE, 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);
}

Datum gbt_tstz_consistent ( PG_FUNCTION_ARGS   ) 

Definition at line 318 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)
        );
}

Datum gbt_tstz_distance ( PG_FUNCTION_ARGS   ) 

Definition at line 343 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)
        );
}

PG_FUNCTION_INFO_V1 ( gbt_ts_picksplit   ) 
PG_FUNCTION_INFO_V1 ( tstz_dist   ) 
PG_FUNCTION_INFO_V1 ( gbt_tstz_consistent   ) 
PG_FUNCTION_INFO_V1 ( gbt_ts_compress   ) 
PG_FUNCTION_INFO_V1 ( gbt_tstz_distance   ) 
PG_FUNCTION_INFO_V1 ( gbt_ts_consistent   ) 
PG_FUNCTION_INFO_V1 ( gbt_ts_same   ) 
PG_FUNCTION_INFO_V1 ( gbt_ts_penalty   ) 
PG_FUNCTION_INFO_V1 ( gbt_ts_distance   ) 
PG_FUNCTION_INFO_V1 ( ts_dist   ) 
PG_FUNCTION_INFO_V1 ( gbt_ts_union   ) 
PG_FUNCTION_INFO_V1 ( gbt_tstz_compress   ) 
Datum ts_dist ( PG_FUNCTION_ARGS   ) 
Datum tstz_dist ( PG_FUNCTION_ARGS   ) 
static Timestamp tstz_to_ts_gmt ( TimestampTz  ts  )  [static]

Definition at line 216 of file btree_ts.c.

References DecodeSpecial(), DT_NOBEGIN, gmt, INT64CONST, and val.

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

{
    Timestamp   gmt;
    int         val,
                tz;

    gmt = ts;
    DecodeSpecial(0, "gmt", &val);

    if (ts < DT_NOEND && ts > DT_NOBEGIN)
    {
        tz = val * 60;

#ifdef HAVE_INT64_TIMESTAMP
        gmt -= (tz * INT64CONST(1000000));
#else
        gmt -= tz;
#endif
    }
    return gmt;
}


Variable Documentation

const gbtree_ninfo tinfo [static]
Initial value:
{
    gbt_t_ts,
    sizeof(Timestamp),
    gbt_tsgt,
    gbt_tsge,
    gbt_tseq,
    gbt_tsle,
    gbt_tslt,
    gbt_tskey_cmp,
    gbt_ts_dist
}

Definition at line 137 of file btree_ts.c.