btree_date.c File Reference

#include "postgres.h"
#include "btree_gist.h"
#include "btree_utils_num.h"
#include "utils/fmgrprotos.h"
#include "utils/date.h"
#include "utils/sortsupport.h"

Include dependency graph for btree_date.c:

Go to the source code of this file.

Data Structures
struct	dateKEY

Functions
	PG_FUNCTION_INFO_V1 (gbt_date_compress)
	PG_FUNCTION_INFO_V1 (gbt_date_fetch)
	PG_FUNCTION_INFO_V1 (gbt_date_union)
	PG_FUNCTION_INFO_V1 (gbt_date_picksplit)
	PG_FUNCTION_INFO_V1 (gbt_date_consistent)
	PG_FUNCTION_INFO_V1 (gbt_date_distance)
	PG_FUNCTION_INFO_V1 (gbt_date_penalty)
	PG_FUNCTION_INFO_V1 (gbt_date_same)
	PG_FUNCTION_INFO_V1 (gbt_date_sortsupport)
static bool	gbt_dategt (const void *a, const void *b, FmgrInfo *flinfo)
static bool	gbt_datege (const void *a, const void *b, FmgrInfo *flinfo)
static bool	gbt_dateeq (const void *a, const void *b, FmgrInfo *flinfo)
static bool	gbt_datele (const void *a, const void *b, FmgrInfo *flinfo)
static bool	gbt_datelt (const void *a, const void *b, FmgrInfo *flinfo)
static int	gbt_datekey_cmp (const void *a, const void *b, FmgrInfo *flinfo)
static float8	gdb_date_dist (const void *a, const void *b, FmgrInfo *flinfo)
	PG_FUNCTION_INFO_V1 (date_dist)
Datum	date_dist (PG_FUNCTION_ARGS)
Datum	gbt_date_compress (PG_FUNCTION_ARGS)
Datum	gbt_date_fetch (PG_FUNCTION_ARGS)
Datum	gbt_date_consistent (PG_FUNCTION_ARGS)
Datum	gbt_date_distance (PG_FUNCTION_ARGS)
Datum	gbt_date_union (PG_FUNCTION_ARGS)
Datum	gbt_date_penalty (PG_FUNCTION_ARGS)
Datum	gbt_date_picksplit (PG_FUNCTION_ARGS)
Datum	gbt_date_same (PG_FUNCTION_ARGS)
static int	gbt_date_ssup_cmp (Datum x, Datum y, SortSupport ssup)
Datum	gbt_date_sortsupport (PG_FUNCTION_ARGS)

Variables
static const gbtree_ninfo	tinfo

Function Documentation

date_dist()

Datum date_dist

(

PG_FUNCTION_ARGS

)

Definition at line 119 of file btree_date.c.

{
    /* we assume the difference can't overflow */
    Datum       diff = DirectFunctionCall2(date_mi,
                                           PG_GETARG_DATUM(0),
                                           PG_GETARG_DATUM(1));
 
    PG_RETURN_INT32(abs(DatumGetInt32(diff)));
}

References date_mi(), DatumGetInt32(), DirectFunctionCall2, PG_GETARG_DATUM, and PG_RETURN_INT32.

gbt_date_compress()

Datum gbt_date_compress

(

PG_FUNCTION_ARGS

)

Definition at line 135 of file btree_date.c.

{
    GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
 
    PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
}

References gbt_num_compress(), PG_GETARG_POINTER, PG_RETURN_POINTER, and tinfo.

gbt_date_consistent()

Datum gbt_date_consistent

(

PG_FUNCTION_ARGS

)

Definition at line 151 of file btree_date.c.

{
    GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
    DateADT     query = PG_GETARG_DATEADT(1);
    StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
 
    /* Oid      subtype = PG_GETARG_OID(3); */
    bool       *recheck = (bool *) PG_GETARG_POINTER(4);
    dateKEY    *kkk = (dateKEY *) 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, &query, &strategy,
                                      GIST_LEAF(entry), &tinfo,
                                      fcinfo->flinfo));
}

References DatumGetPointer(), gbt_num_consistent(), GIST_LEAF, GISTENTRY::key, sort-test::key, dateKEY::lower, PG_GETARG_DATEADT, PG_GETARG_POINTER, PG_GETARG_UINT16, PG_RETURN_BOOL, tinfo, and dateKEY::upper.

gbt_date_distance()

Datum gbt_date_distance

(

PG_FUNCTION_ARGS

)

Definition at line 174 of file btree_date.c.

{
    GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
    DateADT     query = PG_GETARG_DATEADT(1);
 
    /* Oid      subtype = PG_GETARG_OID(3); */
    dateKEY    *kkk = (dateKEY *) 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, &query, GIST_LEAF(entry),
                                      &tinfo, fcinfo->flinfo));
}

References DatumGetPointer(), gbt_num_distance(), GIST_LEAF, GISTENTRY::key, sort-test::key, dateKEY::lower, PG_GETARG_DATEADT, PG_GETARG_POINTER, PG_RETURN_FLOAT8, tinfo, and dateKEY::upper.

gbt_date_fetch()

Datum gbt_date_fetch

(

PG_FUNCTION_ARGS

)

Definition at line 143 of file btree_date.c.

{
    GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
 
    PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
}

References gbt_num_fetch(), PG_GETARG_POINTER, PG_RETURN_POINTER, and tinfo.

gbt_date_penalty()

Datum gbt_date_penalty

(

PG_FUNCTION_ARGS

)

Definition at line 201 of file btree_date.c.

{
    dateKEY    *origentry = (dateKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
    dateKEY    *newentry = (dateKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
    float      *result = (float *) PG_GETARG_POINTER(2);
    int32       diff,
                res;
 
    diff = DatumGetInt32(DirectFunctionCall2(date_mi,
                                             DateADTGetDatum(newentry->upper),
                                             DateADTGetDatum(origentry->upper)));
 
    res = Max(diff, 0);
 
    diff = DatumGetInt32(DirectFunctionCall2(date_mi,
                                             DateADTGetDatum(origentry->lower),
                                             DateADTGetDatum(newentry->lower)));
 
    res += Max(diff, 0);
 
    *result = 0.0;
 
    if (res > 0)
    {
        diff = DatumGetInt32(DirectFunctionCall2(date_mi,
                                                 DateADTGetDatum(origentry->upper),
                                                 DateADTGetDatum(origentry->lower)));
        *result += FLT_MIN;
        *result += (float) (res / ((double) (res + diff)));
        *result *= (FLT_MAX / (((GISTENTRY *) PG_GETARG_POINTER(0))->rel->rd_att->natts + 1));
    }
 
    PG_RETURN_POINTER(result);
}

References date_mi(), DateADTGetDatum(), DatumGetInt32(), DatumGetPointer(), DirectFunctionCall2, sort-test::key, dateKEY::lower, Max, PG_GETARG_POINTER, PG_RETURN_POINTER, and dateKEY::upper.

gbt_date_picksplit()

Datum gbt_date_picksplit

(

PG_FUNCTION_ARGS

)

Definition at line 237 of file btree_date.c.

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

References gbt_num_picksplit(), PG_GETARG_POINTER, PG_RETURN_POINTER, and tinfo.

gbt_date_same()

Datum gbt_date_same

(

PG_FUNCTION_ARGS

)

Definition at line 245 of file btree_date.c.

{
    dateKEY    *b1 = (dateKEY *) PG_GETARG_POINTER(0);
    dateKEY    *b2 = (dateKEY *) 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);
}

References gbt_num_same(), PG_GETARG_POINTER, PG_RETURN_POINTER, and tinfo.

gbt_date_sortsupport()

Datum gbt_date_sortsupport

(

PG_FUNCTION_ARGS

)

Definition at line 268 of file btree_date.c.

{
    SortSupport ssup = (SortSupport) PG_GETARG_POINTER(0);
 
    ssup->comparator = gbt_date_ssup_cmp;
    ssup->ssup_extra = NULL;
 
    PG_RETURN_VOID();
}

References SortSupportData::comparator, gbt_date_ssup_cmp(), PG_GETARG_POINTER, PG_RETURN_VOID, and SortSupportData::ssup_extra.

gbt_date_ssup_cmp()

static int gbt_date_ssup_cmp ( Datum  x, Datum  y, SortSupport  ssup  )

static

Definition at line 256 of file btree_date.c.

{
    dateKEY    *akey = (dateKEY *) DatumGetPointer(x);
    dateKEY    *bkey = (dateKEY *) DatumGetPointer(y);
 
    /* for leaf items we expect lower == upper, so only compare lower */
    return DatumGetInt32(DirectFunctionCall2(date_cmp,
                                             DateADTGetDatum(akey->lower),
                                             DateADTGetDatum(bkey->lower)));
}

References date_cmp(), DateADTGetDatum(), DatumGetInt32(), DatumGetPointer(), DirectFunctionCall2, dateKEY::lower, x, and y.

Referenced by gbt_date_sortsupport().

gbt_date_union()

Datum gbt_date_union

(

PG_FUNCTION_ARGS

)

Definition at line 191 of file btree_date.c.

{
    GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
    void       *out = palloc(sizeof(dateKEY));
 
    *(int *) PG_GETARG_POINTER(1) = sizeof(dateKEY);
    PG_RETURN_POINTER(gbt_num_union(out, entryvec, &tinfo, fcinfo->flinfo));
}

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

gbt_dateeq()

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

static

Definition at line 46 of file btree_date.c.

{
    return DatumGetBool(DirectFunctionCall2(date_eq,
                                            DateADTGetDatum(*((const DateADT *) a)),
                                            DateADTGetDatum(*((const DateADT *) b)))
        );
}

References a, b, date_eq(), DateADTGetDatum(), DatumGetBool(), and DirectFunctionCall2.

gbt_datege()

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

static

Definition at line 38 of file btree_date.c.

{
    return DatumGetBool(DirectFunctionCall2(date_ge,
                                            DateADTGetDatum(*((const DateADT *) a)),
                                            DateADTGetDatum(*((const DateADT *) b))));
}

References a, b, date_ge(), DateADTGetDatum(), DatumGetBool(), and DirectFunctionCall2.

gbt_dategt()

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

static

Definition at line 30 of file btree_date.c.

{
    return DatumGetBool(DirectFunctionCall2(date_gt,
                                            DateADTGetDatum(*((const DateADT *) a)),
                                            DateADTGetDatum(*((const DateADT *) b))));
}

References a, b, date_gt(), DateADTGetDatum(), DatumGetBool(), and DirectFunctionCall2.

gbt_datekey_cmp()

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

static

Definition at line 73 of file btree_date.c.

{
    dateKEY    *ia = (dateKEY *) (((const Nsrt *) a)->t);
    dateKEY    *ib = (dateKEY *) (((const Nsrt *) b)->t);
    int         res;
 
    res = DatumGetInt32(DirectFunctionCall2(date_cmp,
                                            DateADTGetDatum(ia->lower),
                                            DateADTGetDatum(ib->lower)));
    if (res == 0)
        return DatumGetInt32(DirectFunctionCall2(date_cmp,
                                                 DateADTGetDatum(ia->upper),
                                                 DateADTGetDatum(ib->upper)));
 
    return res;
}

References a, b, date_cmp(), DateADTGetDatum(), DatumGetInt32(), DirectFunctionCall2, dateKEY::lower, and dateKEY::upper.

gbt_datele()

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

static

Definition at line 55 of file btree_date.c.

{
    return DatumGetBool(DirectFunctionCall2(date_le,
                                            DateADTGetDatum(*((const DateADT *) a)),
                                            DateADTGetDatum(*((const DateADT *) b))));
}

References a, b, date_le(), DateADTGetDatum(), DatumGetBool(), and DirectFunctionCall2.

gbt_datelt()

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

static

Definition at line 63 of file btree_date.c.

{
    return DatumGetBool(DirectFunctionCall2(date_lt,
                                            DateADTGetDatum(*((const DateADT *) a)),
                                            DateADTGetDatum(*((const DateADT *) b))));
}

References a, b, date_lt(), DateADTGetDatum(), DatumGetBool(), and DirectFunctionCall2.

gdb_date_dist()

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

static

Definition at line 91 of file btree_date.c.

{
    /* we assume the difference can't overflow */
    Datum       diff = DirectFunctionCall2(date_mi,
                                           DateADTGetDatum(*((const DateADT *) a)),
                                           DateADTGetDatum(*((const DateADT *) b)));
 
    return (float8) abs(DatumGetInt32(diff));
}

References a, b, date_mi(), DateADTGetDatum(), DatumGetInt32(), and DirectFunctionCall2.

PG_FUNCTION_INFO_V1() [1/10]

PG_FUNCTION_INFO_V1

(

date_dist

)

PG_FUNCTION_INFO_V1() [2/10]

PG_FUNCTION_INFO_V1

(

gbt_date_compress

)

PG_FUNCTION_INFO_V1() [3/10]

PG_FUNCTION_INFO_V1

(

gbt_date_consistent

)

PG_FUNCTION_INFO_V1() [4/10]

PG_FUNCTION_INFO_V1

(

gbt_date_distance

)

PG_FUNCTION_INFO_V1() [5/10]

PG_FUNCTION_INFO_V1

(

gbt_date_fetch

)

PG_FUNCTION_INFO_V1() [6/10]

PG_FUNCTION_INFO_V1

(

gbt_date_penalty

)

PG_FUNCTION_INFO_V1() [7/10]

PG_FUNCTION_INFO_V1

(

gbt_date_picksplit

)

PG_FUNCTION_INFO_V1() [8/10]

PG_FUNCTION_INFO_V1

(

gbt_date_same

)

PG_FUNCTION_INFO_V1() [9/10]

PG_FUNCTION_INFO_V1

(

gbt_date_sortsupport

)

PG_FUNCTION_INFO_V1() [10/10]

PG_FUNCTION_INFO_V1

(

gbt_date_union

)

Variable Documentation

tinfo

const gbtree_ninfo tinfo

static

Initial value:

=
{
    gbt_t_date,
    sizeof(DateADT),
    8,                          
    gbt_dategt,
    gbt_datege,
    gbt_dateeq,
    gbt_datele,
    gbt_datelt,
    gbt_datekey_cmp,
    gdb_date_dist
}

Definition at line 102 of file btree_date.c.

Referenced by gbt_date_compress(), gbt_date_consistent(), gbt_date_distance(), gbt_date_fetch(), gbt_date_picksplit(), gbt_date_same(), and gbt_date_union().