btree_numeric.c File Reference

#include "postgres.h"
#include <float.h>
#include "btree_gist.h"
#include "btree_utils_var.h"
#include "utils/builtins.h"
#include "utils/numeric.h"
#include "utils/rel.h"
#include "utils/sortsupport.h"

Include dependency graph for btree_numeric.c:

Go to the source code of this file.

Functions
	PG_FUNCTION_INFO_V1 (gbt_numeric_compress)
	PG_FUNCTION_INFO_V1 (gbt_numeric_union)
	PG_FUNCTION_INFO_V1 (gbt_numeric_picksplit)
	PG_FUNCTION_INFO_V1 (gbt_numeric_consistent)
	PG_FUNCTION_INFO_V1 (gbt_numeric_penalty)
	PG_FUNCTION_INFO_V1 (gbt_numeric_same)
	PG_FUNCTION_INFO_V1 (gbt_numeric_sortsupport)
static bool	gbt_numeric_gt (const void *a, const void *b, Oid collation, FmgrInfo *flinfo)
static bool	gbt_numeric_ge (const void *a, const void *b, Oid collation, FmgrInfo *flinfo)
static bool	gbt_numeric_eq (const void *a, const void *b, Oid collation, FmgrInfo *flinfo)
static bool	gbt_numeric_le (const void *a, const void *b, Oid collation, FmgrInfo *flinfo)
static bool	gbt_numeric_lt (const void *a, const void *b, Oid collation, FmgrInfo *flinfo)
static int32	gbt_numeric_cmp (const void *a, const void *b, Oid collation, FmgrInfo *flinfo)
Datum	gbt_numeric_compress (PG_FUNCTION_ARGS)
Datum	gbt_numeric_consistent (PG_FUNCTION_ARGS)
Datum	gbt_numeric_union (PG_FUNCTION_ARGS)
Datum	gbt_numeric_same (PG_FUNCTION_ARGS)
Datum	gbt_numeric_penalty (PG_FUNCTION_ARGS)
Datum	gbt_numeric_picksplit (PG_FUNCTION_ARGS)
static int	gbt_numeric_ssup_cmp (Datum x, Datum y, SortSupport ssup)
Datum	gbt_numeric_sortsupport (PG_FUNCTION_ARGS)

Variables
static const gbtree_vinfo	tinfo

Function Documentation

gbt_numeric_cmp()

static int32 gbt_numeric_cmp ( const void *  a, const void *  b, Oid  collation, FmgrInfo *  flinfo  )

static

Definition at line 70 of file btree_numeric.c.

{
    return DatumGetInt32(DirectFunctionCall2(numeric_cmp,
                                             PointerGetDatum(a),
                                             PointerGetDatum(b)));
}

References a, b, DatumGetInt32(), DirectFunctionCall2, numeric_cmp(), and PointerGetDatum.

gbt_numeric_compress()

Datum gbt_numeric_compress

(

PG_FUNCTION_ARGS

)

Definition at line 102 of file btree_numeric.c.

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

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

gbt_numeric_consistent()

Datum gbt_numeric_consistent

(

PG_FUNCTION_ARGS

)

Definition at line 110 of file btree_numeric.c.

{
    GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
    void       *query = DatumGetNumeric(PG_GETARG_DATUM(1));
    StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
#ifdef NOT_USED
    Oid         subtype = PG_GETARG_OID(3);
#endif
    bool       *recheck = (bool *) PG_GETARG_POINTER(4);
    bool        retval;
    GBT_VARKEY *key = (GBT_VARKEY *) DatumGetPointer(entry->key);
    GBT_VARKEY_R r = gbt_var_key_readable(key);
 
    /* All cases served by this function are exact */
    *recheck = false;
 
    retval = gbt_var_consistent(&r, query, strategy, PG_GET_COLLATION(),
                                GIST_LEAF(entry), &tinfo, fcinfo->flinfo);
    PG_RETURN_BOOL(retval);
}

References DatumGetNumeric(), DatumGetPointer(), gbt_var_consistent(), gbt_var_key_readable(), GIST_LEAF, GISTENTRY::key, PG_GET_COLLATION, PG_GETARG_DATUM, PG_GETARG_OID, PG_GETARG_POINTER, PG_GETARG_UINT16, PG_RETURN_BOOL, and tinfo.

gbt_numeric_eq()

static bool gbt_numeric_eq ( const void *  a, const void *  b, Oid  collation, FmgrInfo *  flinfo  )

static

Definition at line 46 of file btree_numeric.c.

{
    return DatumGetBool(DirectFunctionCall2(numeric_eq,
                                            PointerGetDatum(a),
                                            PointerGetDatum(b)));
}

References a, b, DatumGetBool(), DirectFunctionCall2, numeric_eq(), and PointerGetDatum.

gbt_numeric_ge()

static bool gbt_numeric_ge ( const void *  a, const void *  b, Oid  collation, FmgrInfo *  flinfo  )

static

Definition at line 38 of file btree_numeric.c.

{
    return DatumGetBool(DirectFunctionCall2(numeric_ge,
                                            PointerGetDatum(a),
                                            PointerGetDatum(b)));
}

References a, b, DatumGetBool(), DirectFunctionCall2, numeric_ge(), and PointerGetDatum.

gbt_numeric_gt()

static bool gbt_numeric_gt ( const void *  a, const void *  b, Oid  collation, FmgrInfo *  flinfo  )

static

Definition at line 30 of file btree_numeric.c.

{
    return DatumGetBool(DirectFunctionCall2(numeric_gt,
                                            PointerGetDatum(a),
                                            PointerGetDatum(b)));
}

References a, b, DatumGetBool(), DirectFunctionCall2, numeric_gt(), and PointerGetDatum.

gbt_numeric_le()

static bool gbt_numeric_le ( const void *  a, const void *  b, Oid  collation, FmgrInfo *  flinfo  )

static

Definition at line 54 of file btree_numeric.c.

{
    return DatumGetBool(DirectFunctionCall2(numeric_le,
                                            PointerGetDatum(a),
                                            PointerGetDatum(b)));
}

References a, b, DatumGetBool(), DirectFunctionCall2, numeric_le(), and PointerGetDatum.

gbt_numeric_lt()

static bool gbt_numeric_lt ( const void *  a, const void *  b, Oid  collation, FmgrInfo *  flinfo  )

static

Definition at line 62 of file btree_numeric.c.

{
    return DatumGetBool(DirectFunctionCall2(numeric_lt,
                                            PointerGetDatum(a),
                                            PointerGetDatum(b)));
}

References a, b, DatumGetBool(), DirectFunctionCall2, numeric_lt(), and PointerGetDatum.

gbt_numeric_penalty()

Datum gbt_numeric_penalty

(

PG_FUNCTION_ARGS

)

Definition at line 153 of file btree_numeric.c.

{
    GISTENTRY  *o = (GISTENTRY *) PG_GETARG_POINTER(0);
    GISTENTRY  *n = (GISTENTRY *) PG_GETARG_POINTER(1);
    float      *result = (float *) PG_GETARG_POINTER(2);
 
    Numeric     us,
                os,
                ds;
 
    GBT_VARKEY *org = (GBT_VARKEY *) DatumGetPointer(o->key);
    GBT_VARKEY *newe = (GBT_VARKEY *) DatumGetPointer(n->key);
    Datum       uni;
    GBT_VARKEY_R rk,
                ok,
                uk;
 
    rk = gbt_var_key_readable(org);
    uni = PointerGetDatum(gbt_var_key_copy(&rk));
    gbt_var_bin_union(&uni, newe, PG_GET_COLLATION(), &tinfo, fcinfo->flinfo);
    ok = gbt_var_key_readable(org);
    uk = gbt_var_key_readable((GBT_VARKEY *) DatumGetPointer(uni));
 
    us = DatumGetNumeric(DirectFunctionCall2(numeric_sub,
                                             PointerGetDatum(uk.upper),
                                             PointerGetDatum(uk.lower)));
 
    os = DatumGetNumeric(DirectFunctionCall2(numeric_sub,
                                             PointerGetDatum(ok.upper),
                                             PointerGetDatum(ok.lower)));
 
    ds = DatumGetNumeric(DirectFunctionCall2(numeric_sub,
                                             NumericGetDatum(us),
                                             NumericGetDatum(os)));
 
    if (numeric_is_nan(us))
    {
        if (numeric_is_nan(os))
            *result = 0.0;
        else
            *result = 1.0;
    }
    else
    {
        Numeric     nul = int64_to_numeric(0);
 
        *result = 0.0;
 
        if (DatumGetBool(DirectFunctionCall2(numeric_gt, NumericGetDatum(ds), NumericGetDatum(nul))))
        {
            *result += FLT_MIN;
            os = DatumGetNumeric(DirectFunctionCall2(numeric_div,
                                                     NumericGetDatum(ds),
                                                     NumericGetDatum(us)));
            *result += (float4) DatumGetFloat8(DirectFunctionCall1(numeric_float8_no_overflow, NumericGetDatum(os)));
        }
    }
 
    if (*result > 0)
        *result *= (FLT_MAX / (((GISTENTRY *) PG_GETARG_POINTER(0))->rel->rd_att->natts + 1));
 
    PG_RETURN_POINTER(result);
}

References DatumGetBool(), DatumGetFloat8(), DatumGetNumeric(), DatumGetPointer(), DirectFunctionCall1, DirectFunctionCall2, fb(), gbt_var_bin_union(), gbt_var_key_copy(), gbt_var_key_readable(), int64_to_numeric(), GISTENTRY::key, numeric_div(), numeric_float8_no_overflow(), numeric_gt(), numeric_is_nan(), numeric_sub(), NumericGetDatum(), PG_GET_COLLATION, PG_GETARG_POINTER, PG_RETURN_POINTER, PointerGetDatum, result, and tinfo.

gbt_numeric_picksplit()

Datum gbt_numeric_picksplit

(

PG_FUNCTION_ARGS

)

Definition at line 218 of file btree_numeric.c.

{
    GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
    GIST_SPLITVEC *v = (GIST_SPLITVEC *) PG_GETARG_POINTER(1);
 
    gbt_var_picksplit(entryvec, v, PG_GET_COLLATION(),
                      &tinfo, fcinfo->flinfo);
    PG_RETURN_POINTER(v);
}

References fb(), gbt_var_picksplit(), PG_GET_COLLATION, PG_GETARG_POINTER, PG_RETURN_POINTER, and tinfo.

gbt_numeric_same()

Datum gbt_numeric_same

(

PG_FUNCTION_ARGS

)

Definition at line 142 of file btree_numeric.c.

{
    Datum       d1 = PG_GETARG_DATUM(0);
    Datum       d2 = PG_GETARG_DATUM(1);
    bool       *result = (bool *) PG_GETARG_POINTER(2);
 
    *result = gbt_var_same(d1, d2, PG_GET_COLLATION(), &tinfo, fcinfo->flinfo);
    PG_RETURN_POINTER(result);
}

References gbt_var_same(), PG_GET_COLLATION, PG_GETARG_DATUM, PG_GETARG_POINTER, PG_RETURN_POINTER, result, and tinfo.

gbt_numeric_sortsupport()

Datum gbt_numeric_sortsupport

(

PG_FUNCTION_ARGS

)

Definition at line 250 of file btree_numeric.c.

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

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

gbt_numeric_ssup_cmp()

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

static

Definition at line 229 of file btree_numeric.c.

{
    GBT_VARKEY *key1 = PG_DETOAST_DATUM(x);
    GBT_VARKEY *key2 = PG_DETOAST_DATUM(y);
 
    GBT_VARKEY_R arg1 = gbt_var_key_readable(key1);
    GBT_VARKEY_R arg2 = gbt_var_key_readable(key2);
    Datum       result;
 
    /* for leaf items we expect lower == upper, so only compare lower */
    result = DirectFunctionCall2(numeric_cmp,
                                 PointerGetDatum(arg1.lower),
                                 PointerGetDatum(arg2.lower));
 
    GBT_FREE_IF_COPY(key1, x);
    GBT_FREE_IF_COPY(key2, y);
 
    return DatumGetInt32(result);
}

References DatumGetInt32(), DirectFunctionCall2, fb(), GBT_FREE_IF_COPY, gbt_var_key_readable(), numeric_cmp(), PG_DETOAST_DATUM, PointerGetDatum, result, x, and y.

Referenced by gbt_numeric_sortsupport().

gbt_numeric_union()

Datum gbt_numeric_union

(

PG_FUNCTION_ARGS

)

Definition at line 132 of file btree_numeric.c.

{
    GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
    int32      *size = (int *) PG_GETARG_POINTER(1);
 
    PG_RETURN_POINTER(gbt_var_union(entryvec, size, PG_GET_COLLATION(),
                                    &tinfo, fcinfo->flinfo));
}

References fb(), gbt_var_union(), PG_GET_COLLATION, PG_GETARG_POINTER, PG_RETURN_POINTER, and tinfo.

PG_FUNCTION_INFO_V1() [1/7]

PG_FUNCTION_INFO_V1

(

gbt_numeric_compress

)

PG_FUNCTION_INFO_V1() [2/7]

PG_FUNCTION_INFO_V1

(

gbt_numeric_consistent

)

PG_FUNCTION_INFO_V1() [3/7]

PG_FUNCTION_INFO_V1

(

gbt_numeric_penalty

)

PG_FUNCTION_INFO_V1() [4/7]

PG_FUNCTION_INFO_V1

(

gbt_numeric_picksplit

)

PG_FUNCTION_INFO_V1() [5/7]

PG_FUNCTION_INFO_V1

(

gbt_numeric_same

)

PG_FUNCTION_INFO_V1() [6/7]

PG_FUNCTION_INFO_V1

(

gbt_numeric_sortsupport

)

PG_FUNCTION_INFO_V1() [7/7]

PG_FUNCTION_INFO_V1

(

gbt_numeric_union

)

Variable Documentation

tinfo

const gbtree_vinfo tinfo

static

Initial value:

=
{
    gbt_t_numeric,
    false,                      
    gbt_numeric_gt,
    gbt_numeric_ge,
    gbt_numeric_eq,
    gbt_numeric_le,
    gbt_numeric_lt,
    gbt_numeric_cmp,
    NULL
}

Definition at line 83 of file btree_numeric.c.

{
    gbt_t_numeric,
    false,                      /* no truncation permitted */
    gbt_numeric_gt,
    gbt_numeric_ge,
    gbt_numeric_eq,
    gbt_numeric_le,
    gbt_numeric_lt,
    gbt_numeric_cmp,
    NULL
};

Referenced by gbt_numeric_compress(), gbt_numeric_consistent(), gbt_numeric_penalty(), gbt_numeric_picksplit(), gbt_numeric_same(), and gbt_numeric_union().