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Data Structures | Typedefs | Functions | Variables

btree_int2.c File Reference

#include "postgres.h"
#include "btree_gist.h"
#include "btree_utils_num.h"
Include dependency graph for btree_int2.c:

Go to the source code of this file.

Data Structures

struct  int16key

Typedefs

typedef struct int16key int16KEY

Functions

 PG_FUNCTION_INFO_V1 (gbt_int2_compress)
 PG_FUNCTION_INFO_V1 (gbt_int2_union)
 PG_FUNCTION_INFO_V1 (gbt_int2_picksplit)
 PG_FUNCTION_INFO_V1 (gbt_int2_consistent)
 PG_FUNCTION_INFO_V1 (gbt_int2_distance)
 PG_FUNCTION_INFO_V1 (gbt_int2_penalty)
 PG_FUNCTION_INFO_V1 (gbt_int2_same)
Datum gbt_int2_compress (PG_FUNCTION_ARGS)
Datum gbt_int2_union (PG_FUNCTION_ARGS)
Datum gbt_int2_picksplit (PG_FUNCTION_ARGS)
Datum gbt_int2_consistent (PG_FUNCTION_ARGS)
Datum gbt_int2_distance (PG_FUNCTION_ARGS)
Datum gbt_int2_penalty (PG_FUNCTION_ARGS)
Datum gbt_int2_same (PG_FUNCTION_ARGS)
static bool gbt_int2gt (const void *a, const void *b)
static bool gbt_int2ge (const void *a, const void *b)
static bool gbt_int2eq (const void *a, const void *b)
static bool gbt_int2le (const void *a, const void *b)
static bool gbt_int2lt (const void *a, const void *b)
static int gbt_int2key_cmp (const void *a, const void *b)
static float8 gbt_int2_dist (const void *a, const void *b)
 PG_FUNCTION_INFO_V1 (int2_dist)
Datum int2_dist (PG_FUNCTION_ARGS)

Variables

static const gbtree_ninfo tinfo

Typedef Documentation

typedef struct int16key int16KEY

Function Documentation

Datum gbt_int2_compress ( PG_FUNCTION_ARGS   ) 

Definition at line 127 of file btree_int2.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_int2_consistent ( PG_FUNCTION_ARGS   ) 

Definition at line 137 of file btree_int2.c.

References DatumGetPointer, gbt_num_consistent(), GIST_LEAF, GISTENTRY::key, int16key::lower, GBT_NUMKEY_R::lower, PG_GETARG_INT16, PG_GETARG_POINTER, PG_GETARG_UINT16, PG_RETURN_BOOL, int16key::upper, and GBT_NUMKEY_R::upper.

{
    GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
    int16       query = PG_GETARG_INT16(1);
    StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);

    /* Oid      subtype = PG_GETARG_OID(3); */
    bool       *recheck = (bool *) PG_GETARG_POINTER(4);
    int16KEY   *kkk = (int16KEY *) 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_int2_dist ( const void *  a,
const void *  b 
) [static]

Definition at line 78 of file btree_int2.c.

References GET_FLOAT_DISTANCE.

{
    return GET_FLOAT_DISTANCE(int16, a, b);
}

Datum gbt_int2_distance ( PG_FUNCTION_ARGS   ) 

Definition at line 161 of file btree_int2.c.

References DatumGetPointer, gbt_num_distance(), GIST_LEAF, GISTENTRY::key, int16key::lower, GBT_NUMKEY_R::lower, PG_GETARG_INT16, PG_GETARG_POINTER, PG_RETURN_FLOAT8, int16key::upper, and GBT_NUMKEY_R::upper.

{
    GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
    int16       query = PG_GETARG_INT16(1);

    /* Oid      subtype = PG_GETARG_OID(3); */
    int16KEY   *kkk = (int16KEY *) 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_int2_penalty ( PG_FUNCTION_ARGS   ) 

Definition at line 191 of file btree_int2.c.

References DatumGetPointer, int16key::lower, penalty_num, PG_GETARG_POINTER, PG_RETURN_POINTER, and int16key::upper.

{
    int16KEY   *origentry = (int16KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
    int16KEY   *newentry = (int16KEY *) 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_int2_picksplit ( PG_FUNCTION_ARGS   ) 
Datum gbt_int2_same ( PG_FUNCTION_ARGS   ) 

Definition at line 213 of file btree_int2.c.

References gbt_num_same(), PG_GETARG_POINTER, and PG_RETURN_POINTER.

{
    int16KEY   *b1 = (int16KEY *) PG_GETARG_POINTER(0);
    int16KEY   *b2 = (int16KEY *) 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_int2_union ( PG_FUNCTION_ARGS   ) 

Definition at line 180 of file btree_int2.c.

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

{
    GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
    void       *out = palloc(sizeof(int16KEY));

    *(int *) PG_GETARG_POINTER(1) = sizeof(int16KEY);
    PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo));
}

static bool gbt_int2eq ( const void *  a,
const void *  b 
) [static]

Definition at line 45 of file btree_int2.c.

{
    return (*((const int16 *) a) == *((const int16 *) b));
}

static bool gbt_int2ge ( const void *  a,
const void *  b 
) [static]

Definition at line 40 of file btree_int2.c.

{
    return (*((const int16 *) a) >= *((const int16 *) b));
}

static bool gbt_int2gt ( const void *  a,
const void *  b 
) [static]

Definition at line 35 of file btree_int2.c.

{
    return (*((const int16 *) a) > *((const int16 *) b));
}

static int gbt_int2key_cmp ( const void *  a,
const void *  b 
) [static]

Definition at line 61 of file btree_int2.c.

References int16key::lower, and int16key::upper.

{
    int16KEY   *ia = (int16KEY *) (((const Nsrt *) a)->t);
    int16KEY   *ib = (int16KEY *) (((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_int2le ( const void *  a,
const void *  b 
) [static]

Definition at line 50 of file btree_int2.c.

{
    return (*((const int16 *) a) <= *((const int16 *) b));
}

static bool gbt_int2lt ( const void *  a,
const void *  b 
) [static]

Definition at line 55 of file btree_int2.c.

{
    return (*((const int16 *) a) < *((const int16 *) b));
}

Datum int2_dist ( PG_FUNCTION_ARGS   ) 

Definition at line 101 of file btree_int2.c.

References Abs, ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT16, PG_RETURN_INT16, and SAMESIGN.

{
    int16       a = PG_GETARG_INT16(0);
    int16       b = PG_GETARG_INT16(1);
    int16       r;
    int16       ra;

    r = a - b;
    ra = Abs(r);

    /* Overflow check. */
    if (ra < 0 || (!SAMESIGN(a, b) && !SAMESIGN(r, a)))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("smallint out of range")));

    PG_RETURN_INT16(ra);
}

PG_FUNCTION_INFO_V1 ( gbt_int2_consistent   ) 
PG_FUNCTION_INFO_V1 ( gbt_int2_compress   ) 
PG_FUNCTION_INFO_V1 ( gbt_int2_union   ) 
PG_FUNCTION_INFO_V1 ( gbt_int2_same   ) 
PG_FUNCTION_INFO_V1 ( gbt_int2_penalty   ) 
PG_FUNCTION_INFO_V1 ( gbt_int2_picksplit   ) 
PG_FUNCTION_INFO_V1 ( gbt_int2_distance   ) 
PG_FUNCTION_INFO_V1 ( int2_dist   ) 

Variable Documentation

const gbtree_ninfo tinfo [static]
Initial value:

Definition at line 84 of file btree_int2.c.