6 #include "access/gist.h"
7 #include "access/itup.h"
8 #include "utils/elog.h"
9 #include "utils/palloc.h"
10 #include "utils/builtins.h"
11 #include "storage/bufpage.h"
23 #define CMPCHAR(a,b) ( ((a)==(b)) ? 0 : ( ((a)<(b)) ? -1 : 1 ) )
24 #define CMPPCHAR(a,b,i) CMPCHAR( *(((char*)(a))+i), *(((char*)(b))+i) )
25 #define CMPTRGM(a,b) ( CMPPCHAR(a,b,0) ? CMPPCHAR(a,b,0) : ( CMPPCHAR(a,b,1) ? CMPPCHAR(a,b,1) : CMPPCHAR(a,b,2) ) )
27 #define CPTRGM(a,b) do { \
28 *(((char*)(a))+0) = *(((char*)(b))+0); \
29 *(((char*)(a))+1) = *(((char*)(b))+1); \
30 *(((char*)(a))+2) = *(((char*)(b))+2); \
41 #define TRGMHRDSIZE (sizeof(int4)+sizeof(uint8))
45 #define SIGLENINT 3 /* >122 => key will toast, so very slow!!! */
46 #define SIGLEN ( sizeof(int)*SIGLENINT )
48 #define SIGLENBIT (SIGLEN*BITBYTE - 1) /* see makesign */
50 typedef char BITVEC[SIGLEN];
51 typedef char *BITVECP;
54 for(i=0;i<SIGLEN;i++) {\
59 for(i=0;i<SIGLENBIT;i++) {\
63 #define GETBYTE(x,i) ( *( (BITVECP)(x) + (int)( (i) / BITBYTE ) ) )
64 #define GETBITBYTE(x,i) ( ((char)(x)) >> i & 0x01 )
65 #define CLRBIT(x,i) GETBYTE(x,i) &= ~( 0x01 << ( (i) % BITBYTE ) )
66 #define SETBIT(x,i) GETBYTE(x,i) |= ( 0x01 << ( (i) % BITBYTE ) )
67 #define GETBIT(x,i) ( (GETBYTE(x,i) >> ( (i) % BITBYTE )) & 0x01 )
69 #define HASHVAL(val) (((unsigned int)(val)) % SIGLENBIT)
70 #define HASH(sign, val) SETBIT((sign), HASHVAL(val))
74 #define ALLISTRUE 0x04
76 #define ISARRKEY(x) ( ((TRGM*)x)->flag & ARRKEY )
77 #define ISSIGNKEY(x) ( ((TRGM*)x)->flag & SIGNKEY )
78 #define ISALLTRUE(x) ( ((TRGM*)x)->flag & ALLISTRUE )
80 #define CALCGTSIZE(flag, len) ( TRGMHRDSIZE + ( ( (flag) & ARRKEY ) ? ((len)*sizeof(trgm)) : (((flag) & ALLISTRUE) ? 0 : SIGLEN) ) )
81 #define GETSIGN(x) ( (BITVECP)( (char*)x+TRGMHRDSIZE ) )
82 #define GETARR(x) ( (trgm*)( (char*)x+TRGMHRDSIZE ) )
83 #define ARRNELEM(x) ( ( ((TRGM*)x)->len - TRGMHRDSIZE )/sizeof(trgm) )
85 extern float4 trgm_limit;
86 TRGM *generate_trgm(char *str, int slen);
87 float4 cnt_sml(TRGM * trg1, TRGM * trg2);