btree_int4.c File Reference

#include "postgres.h"
#include "btree_gist.h"
#include "btree_utils_num.h"
#include "common/int.h"
#include "utils/sortsupport.h"

Include dependency graph for btree_int4.c:

Go to the source code of this file.

Data Structures
struct	int32key

Typedefs
typedef struct int32key	int32KEY

Functions
	PG_FUNCTION_INFO_V1 (gbt_int4_compress)
	PG_FUNCTION_INFO_V1 (gbt_int4_fetch)
	PG_FUNCTION_INFO_V1 (gbt_int4_union)
	PG_FUNCTION_INFO_V1 (gbt_int4_picksplit)
	PG_FUNCTION_INFO_V1 (gbt_int4_consistent)
	PG_FUNCTION_INFO_V1 (gbt_int4_distance)
	PG_FUNCTION_INFO_V1 (gbt_int4_penalty)
	PG_FUNCTION_INFO_V1 (gbt_int4_same)
	PG_FUNCTION_INFO_V1 (gbt_int4_sortsupport)
static bool	gbt_int4gt (const void *a, const void *b, FmgrInfo *flinfo)
static bool	gbt_int4ge (const void *a, const void *b, FmgrInfo *flinfo)
static bool	gbt_int4eq (const void *a, const void *b, FmgrInfo *flinfo)
static bool	gbt_int4le (const void *a, const void *b, FmgrInfo *flinfo)
static bool	gbt_int4lt (const void *a, const void *b, FmgrInfo *flinfo)
static int	gbt_int4key_cmp (const void *a, const void *b, FmgrInfo *flinfo)
static float8	gbt_int4_dist (const void *a, const void *b, FmgrInfo *flinfo)
	PG_FUNCTION_INFO_V1 (int4_dist)
Datum	int4_dist (PG_FUNCTION_ARGS)
Datum	gbt_int4_compress (PG_FUNCTION_ARGS)
Datum	gbt_int4_fetch (PG_FUNCTION_ARGS)
Datum	gbt_int4_consistent (PG_FUNCTION_ARGS)
Datum	gbt_int4_distance (PG_FUNCTION_ARGS)
Datum	gbt_int4_union (PG_FUNCTION_ARGS)
Datum	gbt_int4_penalty (PG_FUNCTION_ARGS)
Datum	gbt_int4_picksplit (PG_FUNCTION_ARGS)
Datum	gbt_int4_same (PG_FUNCTION_ARGS)
static int	gbt_int4_ssup_cmp (Datum a, Datum b, SortSupport ssup)
Datum	gbt_int4_sortsupport (PG_FUNCTION_ARGS)

Variables
static const gbtree_ninfo	tinfo

Typedef Documentation

int32KEY

typedef struct int32key int32KEY

Function Documentation

gbt_int4_compress()

Datum gbt_int4_compress

(

PG_FUNCTION_ARGS

)

Definition at line 118 of file btree_int4.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_int4_consistent()

Datum gbt_int4_consistent

(

PG_FUNCTION_ARGS

)

Definition at line 134 of file btree_int4.c.

{
    GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
    int32       query = PG_GETARG_INT32(1);
    StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
 
    /* Oid      subtype = PG_GETARG_OID(3); */
    bool       *recheck = (bool *) PG_GETARG_POINTER(4);
    int32KEY   *kkk = (int32KEY *) 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, int32key::lower, PG_GETARG_INT32, PG_GETARG_POINTER, PG_GETARG_UINT16, PG_RETURN_BOOL, tinfo, and int32key::upper.

gbt_int4_dist()

static float8 gbt_int4_dist ( const void *  a, const void *  b, FmgrInfo *  flinfo  )

static

Definition at line 71 of file btree_int4.c.

{
    return GET_FLOAT_DISTANCE(int32, a, b);
}

References a, b, and GET_FLOAT_DISTANCE.

gbt_int4_distance()

Datum gbt_int4_distance

(

PG_FUNCTION_ARGS

)

Definition at line 156 of file btree_int4.c.

{
    GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
    int32       query = PG_GETARG_INT32(1);
 
    /* Oid      subtype = PG_GETARG_OID(3); */
    int32KEY   *kkk = (int32KEY *) 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, int32key::lower, PG_GETARG_INT32, PG_GETARG_POINTER, PG_RETURN_FLOAT8, tinfo, and int32key::upper.

gbt_int4_fetch()

Datum gbt_int4_fetch

(

PG_FUNCTION_ARGS

)

Definition at line 126 of file btree_int4.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_int4_penalty()

Datum gbt_int4_penalty

(

PG_FUNCTION_ARGS

)

Definition at line 183 of file btree_int4.c.

{
    int32KEY   *origentry = (int32KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
    int32KEY   *newentry = (int32KEY *) 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);
}

References DatumGetPointer(), sort-test::key, int32key::lower, penalty_num, PG_GETARG_POINTER, PG_RETURN_POINTER, and int32key::upper.

gbt_int4_picksplit()

Datum gbt_int4_picksplit

(

PG_FUNCTION_ARGS

)

Definition at line 195 of file btree_int4.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_int4_same()

Datum gbt_int4_same

(

PG_FUNCTION_ARGS

)

Definition at line 203 of file btree_int4.c.

{
    int32KEY   *b1 = (int32KEY *) PG_GETARG_POINTER(0);
    int32KEY   *b2 = (int32KEY *) 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_int4_sortsupport()

Datum gbt_int4_sortsupport

(

PG_FUNCTION_ARGS

)

Definition at line 229 of file btree_int4.c.

{
    SortSupport ssup = (SortSupport) PG_GETARG_POINTER(0);
 
    ssup->comparator = gbt_int4_ssup_cmp;
    PG_RETURN_VOID();
}

References SortSupportData::comparator, gbt_int4_ssup_cmp(), PG_GETARG_POINTER, and PG_RETURN_VOID.

gbt_int4_ssup_cmp()

static int gbt_int4_ssup_cmp ( Datum  a, Datum  b, SortSupport  ssup  )

static

Definition at line 214 of file btree_int4.c.

{
    int32KEY   *ia = (int32KEY *) DatumGetPointer(a);
    int32KEY   *ib = (int32KEY *) DatumGetPointer(b);
 
    /* for leaf items we expect lower == upper, so only compare lower */
    if (ia->lower < ib->lower)
        return -1;
    else if (ia->lower > ib->lower)
        return 1;
    else
        return 0;
}

References a, b, DatumGetPointer(), and int32key::lower.

Referenced by gbt_int4_sortsupport().

gbt_int4_union()

Datum gbt_int4_union

(

PG_FUNCTION_ARGS

)

Definition at line 173 of file btree_int4.c.

{
    GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
    void       *out = palloc(sizeof(int32KEY));
 
    *(int *) PG_GETARG_POINTER(1) = sizeof(int32KEY);
    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_int4eq()

static bool gbt_int4eq ( const void *  a, const void *  b, FmgrInfo *  flinfo  )

static

Definition at line 38 of file btree_int4.c.

{
    return (*((const int32 *) a) == *((const int32 *) b));
}

References a, and b.

gbt_int4ge()

static bool gbt_int4ge ( const void *  a, const void *  b, FmgrInfo *  flinfo  )

static

Definition at line 33 of file btree_int4.c.

{
    return (*((const int32 *) a) >= *((const int32 *) b));
}

References a, and b.

gbt_int4gt()

static bool gbt_int4gt ( const void *  a, const void *  b, FmgrInfo *  flinfo  )

static

Definition at line 28 of file btree_int4.c.

{
    return (*((const int32 *) a) > *((const int32 *) b));
}

References a, and b.

gbt_int4key_cmp()

static int gbt_int4key_cmp ( const void *  a, const void *  b, FmgrInfo *  flinfo  )

static

Definition at line 54 of file btree_int4.c.

{
    int32KEY   *ia = (int32KEY *) (((const Nsrt *) a)->t);
    int32KEY   *ib = (int32KEY *) (((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;
}

References a, b, int32key::lower, and int32key::upper.

gbt_int4le()

static bool gbt_int4le ( const void *  a, const void *  b, FmgrInfo *  flinfo  )

static

Definition at line 43 of file btree_int4.c.

{
    return (*((const int32 *) a) <= *((const int32 *) b));
}

References a, and b.

gbt_int4lt()

static bool gbt_int4lt ( const void *  a, const void *  b, FmgrInfo *  flinfo  )

static

Definition at line 48 of file btree_int4.c.

{
    return (*((const int32 *) a) < *((const int32 *) b));
}

References a, and b.

int4_dist()

Datum int4_dist

(

PG_FUNCTION_ARGS

)

Definition at line 94 of file btree_int4.c.

{
    int32       a = PG_GETARG_INT32(0);
    int32       b = PG_GETARG_INT32(1);
    int32       r;
    int32       ra;
 
    if (pg_sub_s32_overflow(a, b, &r) ||
        r == PG_INT32_MIN)
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("integer out of range")));
 
    ra = abs(r);
 
    PG_RETURN_INT32(ra);
}

References a, b, ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT32, PG_INT32_MIN, PG_RETURN_INT32, and pg_sub_s32_overflow().

PG_FUNCTION_INFO_V1() [1/10]

PG_FUNCTION_INFO_V1

(

gbt_int4_compress

)

PG_FUNCTION_INFO_V1() [2/10]

PG_FUNCTION_INFO_V1

(

gbt_int4_consistent

)

PG_FUNCTION_INFO_V1() [3/10]

PG_FUNCTION_INFO_V1

(

gbt_int4_distance

)

PG_FUNCTION_INFO_V1() [4/10]

PG_FUNCTION_INFO_V1

(

gbt_int4_fetch

)

PG_FUNCTION_INFO_V1() [5/10]

PG_FUNCTION_INFO_V1

(

gbt_int4_penalty

)

PG_FUNCTION_INFO_V1() [6/10]

PG_FUNCTION_INFO_V1

(

gbt_int4_picksplit

)

PG_FUNCTION_INFO_V1() [7/10]

PG_FUNCTION_INFO_V1

(

gbt_int4_same

)

PG_FUNCTION_INFO_V1() [8/10]

PG_FUNCTION_INFO_V1

(

gbt_int4_sortsupport

)

PG_FUNCTION_INFO_V1() [9/10]

PG_FUNCTION_INFO_V1

(

gbt_int4_union

)

PG_FUNCTION_INFO_V1() [10/10]

PG_FUNCTION_INFO_V1

(

int4_dist

)

Variable Documentation

tinfo

const gbtree_ninfo tinfo

static

Initial value:

=
{
    gbt_t_int4,
    sizeof(int32),
    8,                          
    gbt_int4gt,
    gbt_int4ge,
    gbt_int4eq,
    gbt_int4le,
    gbt_int4lt,
    gbt_int4key_cmp,
    gbt_int4_dist
}

Definition at line 77 of file btree_int4.c.

Referenced by gbt_int4_compress(), gbt_int4_consistent(), gbt_int4_distance(), gbt_int4_fetch(), gbt_int4_picksplit(), gbt_int4_same(), and gbt_int4_union().