mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-08-28 17:47:19 +02:00
getting rid of numerous ad-hoc versions that have popped up in various places. Shortens code and avoids conflict with Windows min() and max() macros.
172 lines
4.4 KiB
C
172 lines
4.4 KiB
C
#include "postgres.h"
|
|
|
|
#include <float.h>
|
|
|
|
#include "access/gist.h"
|
|
#include "access/itup.h"
|
|
#include "access/rtree.h"
|
|
#include "catalog/pg_type.h"
|
|
#include "utils/array.h"
|
|
#include "utils/builtins.h"
|
|
#include "storage/bufpage.h"
|
|
#include "lib/stringinfo.h"
|
|
|
|
/* number ranges for compression */
|
|
#define MAXNUMRANGE 100
|
|
|
|
/* dimension of array */
|
|
#define NDIM 1
|
|
|
|
/*
|
|
* flags for gist__int_ops, use ArrayType->flags
|
|
* which is unused (see array.h)
|
|
*/
|
|
#define LEAFKEY (1<<31)
|
|
#define ISLEAFKEY(x) ( ((ArrayType*)(x))->flags & LEAFKEY )
|
|
|
|
/* useful macros for accessing int4 arrays */
|
|
#define ARRPTR(x) ( (int4 *) ARR_DATA_PTR(x) )
|
|
#define ARRNELEMS(x) ArrayGetNItems( ARR_NDIM(x), ARR_DIMS(x))
|
|
|
|
#define ARRISVOID(x) ( (x) ? ( ( ARR_NDIM(x) == NDIM ) ? ( ( ARRNELEMS( x ) ) ? 0 : 1 ) : ( ( ARR_NDIM(x) ) ? ( \
|
|
ereport(ERROR, \
|
|
(errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR), \
|
|
errmsg("array must be one-dimensional, not %d dimensions", ARRNELEMS( x )))) \
|
|
,1) : 0 ) ) : 0 )
|
|
|
|
#define SORT(x) \
|
|
do { \
|
|
if ( ARRNELEMS( x ) > 1 ) \
|
|
isort( ARRPTR( x ), ARRNELEMS( x ) ); \
|
|
} while(0)
|
|
|
|
#define PREPAREARR(x) \
|
|
do { \
|
|
if ( ARRNELEMS( x ) > 1 ) \
|
|
if ( isort( ARRPTR( x ), ARRNELEMS( x ) ) ) \
|
|
x = _int_unique( x ); \
|
|
} while(0)
|
|
|
|
/* "wish" function */
|
|
#define WISH_F(a,b,c) (double)( -(double)(((a)-(b))*((a)-(b))*((a)-(b)))*(c) )
|
|
|
|
|
|
/* bigint defines */
|
|
#define BITBYTE 8
|
|
#define SIGLENINT 63 /* >122 => key will toast, so very slow!!! */
|
|
#define SIGLEN ( sizeof(int)*SIGLENINT )
|
|
#define SIGLENBIT (SIGLEN*BITBYTE)
|
|
|
|
typedef char BITVEC[SIGLEN];
|
|
typedef char *BITVECP;
|
|
|
|
#define SIGPTR(x) ( (BITVECP) ARR_DATA_PTR(x) )
|
|
|
|
|
|
#define LOOPBYTE(a) \
|
|
for(i=0;i<SIGLEN;i++) {\
|
|
a;\
|
|
}
|
|
|
|
#define LOOPBIT(a) \
|
|
for(i=0;i<SIGLENBIT;i++) {\
|
|
a;\
|
|
}
|
|
|
|
/* beware of multiple evaluation of arguments to these macros! */
|
|
#define GETBYTE(x,i) ( *( (BITVECP)(x) + (int)( (i) / BITBYTE ) ) )
|
|
#define GETBITBYTE(x,i) ( (*((char*)(x)) >> (i)) & 0x01 )
|
|
#define CLRBIT(x,i) GETBYTE(x,i) &= ~( 0x01 << ( (i) % BITBYTE ) )
|
|
#define SETBIT(x,i) GETBYTE(x,i) |= ( 0x01 << ( (i) % BITBYTE ) )
|
|
#define GETBIT(x,i) ( (GETBYTE(x,i) >> ( (i) % BITBYTE )) & 0x01 )
|
|
#define HASHVAL(val) (((unsigned int)(val)) % SIGLENBIT)
|
|
#define HASH(sign, val) SETBIT((sign), HASHVAL(val))
|
|
|
|
/*
|
|
* type of index key
|
|
*/
|
|
typedef struct
|
|
{
|
|
int4 len;
|
|
int4 flag;
|
|
char data[1];
|
|
} GISTTYPE;
|
|
|
|
#define ALLISTRUE 0x04
|
|
|
|
#define ISALLTRUE(x) ( ((GISTTYPE*)x)->flag & ALLISTRUE )
|
|
|
|
#define GTHDRSIZE ( sizeof(int4)*2 )
|
|
#define CALCGTSIZE(flag) ( GTHDRSIZE+(((flag) & ALLISTRUE) ? 0 : SIGLEN) )
|
|
|
|
#define GETSIGN(x) ( (BITVECP)( (char*)x+GTHDRSIZE ) )
|
|
|
|
/*
|
|
** types for functions
|
|
*/
|
|
typedef ArrayType *(*formarray) (ArrayType *, ArrayType *);
|
|
typedef void (*formfloat) (ArrayType *, float *);
|
|
|
|
/*
|
|
** useful function
|
|
*/
|
|
bool isort(int4 *a, const int len);
|
|
ArrayType *new_intArrayType(int num);
|
|
ArrayType *copy_intArrayType(ArrayType *a);
|
|
ArrayType *resize_intArrayType(ArrayType *a, int num);
|
|
int internal_size(int *a, int len);
|
|
ArrayType *_int_unique(ArrayType *a);
|
|
int32 intarray_match_first(ArrayType *a, int32 elem);
|
|
ArrayType *intarray_add_elem(ArrayType *a, int32 elem);
|
|
ArrayType *intarray_concat_arrays(ArrayType *a, ArrayType *b);
|
|
ArrayType *int_to_intset(int32 elem);
|
|
bool inner_int_overlap(ArrayType *a, ArrayType *b);
|
|
bool inner_int_contains(ArrayType *a, ArrayType *b);
|
|
ArrayType *inner_int_union(ArrayType *a, ArrayType *b);
|
|
ArrayType *inner_int_inter(ArrayType *a, ArrayType *b);
|
|
void rt__int_size(ArrayType *a, float *size);
|
|
void gensign(BITVEC sign, int *a, int len);
|
|
|
|
|
|
/*****************************************************************************
|
|
* Boolean Search
|
|
*****************************************************************************/
|
|
|
|
#define BooleanSearchStrategy 20
|
|
|
|
/*
|
|
* item in polish notation with back link
|
|
* to left operand
|
|
*/
|
|
typedef struct ITEM
|
|
{
|
|
int2 type;
|
|
int2 left;
|
|
int4 val;
|
|
} ITEM;
|
|
|
|
typedef struct
|
|
{
|
|
int4 len;
|
|
int4 size;
|
|
char data[1];
|
|
} QUERYTYPE;
|
|
|
|
#define HDRSIZEQT ( 2*sizeof(int4) )
|
|
#define COMPUTESIZE(size) ( HDRSIZEQT + size * sizeof(ITEM) )
|
|
#define GETQUERY(x) (ITEM*)( (char*)(x)+HDRSIZEQT )
|
|
|
|
bool signconsistent(QUERYTYPE * query, BITVEC sign, bool calcnot);
|
|
bool execconsistent(QUERYTYPE * query, ArrayType *array, bool calcnot);
|
|
|
|
|
|
|
|
int compASC(const void *a, const void *b);
|
|
|
|
int compDESC(const void *a, const void *b);
|
|
|
|
#define QSORT(a, direction) \
|
|
if (ARRNELEMS(a) > 1) \
|
|
qsort((void*)ARRPTR(a), ARRNELEMS(a),sizeof(int4), \
|
|
(direction) ? compASC : compDESC )
|