#include "postgres.h"
#include "btree_gist.h"
#include "btree_utils_num.h"

Include dependency graph for btree_float8.c:

Data Structures
struct	float8key
Typedefs
typedef struct float8key	float8KEY
Functions
	PG_FUNCTION_INFO_V1 (gbt_float8_compress)
	PG_FUNCTION_INFO_V1 (gbt_float8_union)
	PG_FUNCTION_INFO_V1 (gbt_float8_picksplit)
	PG_FUNCTION_INFO_V1 (gbt_float8_consistent)
	PG_FUNCTION_INFO_V1 (gbt_float8_distance)
	PG_FUNCTION_INFO_V1 (gbt_float8_penalty)
	PG_FUNCTION_INFO_V1 (gbt_float8_same)
Datum	gbt_float8_compress (PG_FUNCTION_ARGS)
Datum	gbt_float8_union (PG_FUNCTION_ARGS)
Datum	gbt_float8_picksplit (PG_FUNCTION_ARGS)
Datum	gbt_float8_consistent (PG_FUNCTION_ARGS)
Datum	gbt_float8_distance (PG_FUNCTION_ARGS)
Datum	gbt_float8_penalty (PG_FUNCTION_ARGS)
Datum	gbt_float8_same (PG_FUNCTION_ARGS)
static bool	gbt_float8gt (const void a, const void b)
static bool	gbt_float8ge (const void a, const void b)
static bool	gbt_float8eq (const void a, const void b)
static bool	gbt_float8le (const void a, const void b)
static bool	gbt_float8lt (const void a, const void b)
static int	gbt_float8key_cmp (const void a, const void b)
static float8	gbt_float8_dist (const void a, const void b)
	PG_FUNCTION_INFO_V1 (float8_dist)
Datum	float8_dist (PG_FUNCTION_ARGS)
Variables
static const gbtree_ninfo	tinfo

Typedef Documentation

typedef struct float8key float8KEY

Function Documentation

Datum float8_dist ( PG_FUNCTION_ARGS )

Definition at line 109 of file btree_float8.c.

References Abs, CHECKFLOATVAL, isinf(), PG_GETARG_FLOAT8, and PG_RETURN_FLOAT8.

{
    float8      a = PG_GETARG_FLOAT8(0);
    float8      b = PG_GETARG_FLOAT8(1);
    float8      r;

    r = a - b;
    CHECKFLOATVAL(r, isinf(a) || isinf(b), true);

    PG_RETURN_FLOAT8(Abs(r));
}

Datum gbt_float8_compress ( PG_FUNCTION_ARGS )

Definition at line 127 of file btree_float8.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_float8_consistent ( PG_FUNCTION_ARGS )

Definition at line 137 of file btree_float8.c.

References DatumGetPointer, gbt_num_consistent(), GIST_LEAF, GISTENTRY::key, float8key::lower, GBT_NUMKEY_R::lower, PG_GETARG_FLOAT8, PG_GETARG_POINTER, PG_GETARG_UINT16, PG_RETURN_BOOL, float8key::upper, and GBT_NUMKEY_R::upper.

{
    GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
    float8      query = PG_GETARG_FLOAT8(1);
    StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);

    /* Oid      subtype = PG_GETARG_OID(3); */
    bool       *recheck = (bool *) PG_GETARG_POINTER(4);
    float8KEY  *kkk = (float8KEY *) 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_float8_dist	(	const void *	a,
		const void *	b
	)			`[static]`

Definition at line 79 of file btree_float8.c.

References Abs, CHECKFLOATVAL, and isinf().

{
    float8      arg1 = *(const float8 *) a;
    float8      arg2 = *(const float8 *) b;
    float8      r;

    r = arg1 - arg2;
    CHECKFLOATVAL(r, isinf(arg1) || isinf(arg2), true);

    return Abs(r);
}

Datum gbt_float8_distance ( PG_FUNCTION_ARGS )

Definition at line 161 of file btree_float8.c.

References DatumGetPointer, gbt_num_distance(), GIST_LEAF, GISTENTRY::key, float8key::lower, GBT_NUMKEY_R::lower, PG_GETARG_FLOAT8, PG_GETARG_POINTER, PG_RETURN_FLOAT8, float8key::upper, and GBT_NUMKEY_R::upper.

{
    GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
    float8      query = PG_GETARG_FLOAT8(1);

    /* Oid      subtype = PG_GETARG_OID(3); */
    float8KEY  *kkk = (float8KEY *) 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_float8_penalty ( PG_FUNCTION_ARGS )

Definition at line 191 of file btree_float8.c.

References DatumGetPointer, float8key::lower, penalty_num, PG_GETARG_POINTER, PG_RETURN_POINTER, and float8key::upper.

{
    float8KEY  *origentry = (float8KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
    float8KEY  *newentry = (float8KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
    float      *result = (float *) PG_GETARG_POINTER(2);

    penalty_num(result, origentry->lower, origentry->upper, newentry->lower, newentry->upper);

    PG_RETURN_POINTER(result);

}

Datum gbt_float8_picksplit ( PG_FUNCTION_ARGS )

Definition at line 204 of file btree_float8.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
                                        ));
}

Datum gbt_float8_same ( PG_FUNCTION_ARGS )

Definition at line 214 of file btree_float8.c.

References gbt_num_same(), PG_GETARG_POINTER, and PG_RETURN_POINTER.

{
    float8KEY  *b1 = (float8KEY *) PG_GETARG_POINTER(0);
    float8KEY  *b2 = (float8KEY *) 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_float8_union ( PG_FUNCTION_ARGS )

Definition at line 180 of file btree_float8.c.

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

{
    GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
    void       *out = palloc(sizeof(float8KEY));

    *(int *) PG_GETARG_POINTER(1) = sizeof(float8KEY);
    PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo));
}

static bool gbt_float8eq	(	const void *	a,
		const void *	b
	)			`[static]`

Definition at line 46 of file btree_float8.c.

{
    return (*((const float8 *) a) == *((const float8 *) b));
}

static bool gbt_float8ge	(	const void *	a,
		const void *	b
	)			`[static]`

Definition at line 41 of file btree_float8.c.

{
    return (*((const float8 *) a) >= *((const float8 *) b));
}

static bool gbt_float8gt	(	const void *	a,
		const void *	b
	)			`[static]`

Definition at line 36 of file btree_float8.c.

{
    return (*((const float8 *) a) > *((const float8 *) b));
}

static int gbt_float8key_cmp	(	const void *	a,
		const void *	b
	)			`[static]`

Definition at line 62 of file btree_float8.c.

References float8key::lower, and float8key::upper.

{
    float8KEY  *ia = (float8KEY *) (((const Nsrt *) a)->t);
    float8KEY  *ib = (float8KEY *) (((const Nsrt *) b)->t);

    if (ia->lower == ib->lower)
    {
        if (ia->upper == ib->upper)
            return 0;

        return (ia->upper > ib->upper) ? 1 : -1;
    }

    return (ia->lower > ib->lower) ? 1 : -1;
}

static bool gbt_float8le	(	const void *	a,
		const void *	b
	)			`[static]`

Definition at line 51 of file btree_float8.c.

{
    return (*((const float8 *) a) <= *((const float8 *) b));
}

static bool gbt_float8lt	(	const void *	a,
		const void *	b
	)			`[static]`

Definition at line 56 of file btree_float8.c.

{
    return (*((const float8 *) a) < *((const float8 *) b));
}

PG_FUNCTION_INFO_V1 ( gbt_float8_compress )

PG_FUNCTION_INFO_V1 ( gbt_float8_consistent )

PG_FUNCTION_INFO_V1 ( gbt_float8_picksplit )

PG_FUNCTION_INFO_V1 ( gbt_float8_distance )

PG_FUNCTION_INFO_V1 ( gbt_float8_same )

PG_FUNCTION_INFO_V1 ( gbt_float8_penalty )

PG_FUNCTION_INFO_V1 ( gbt_float8_union )

PG_FUNCTION_INFO_V1 ( float8_dist )

Variable Documentation

const gbtree_ninfo tinfo [static]

Initial value:

{
    gbt_t_float8,
    sizeof(float8),
    gbt_float8gt,
    gbt_float8ge,
    gbt_float8eq,
    gbt_float8le,
    gbt_float8lt,
    gbt_float8key_cmp,
    gbt_float8_dist
}

Definition at line 92 of file btree_float8.c.

Header And Logo

btree_float8.c File Reference

Data Structures

Typedefs

Functions

Variables

Typedef Documentation

Function Documentation

Variable Documentation