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1 fix various comparing functions

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2 implement gtsvector_out for use with gevel module (debug GiST indexes, http://www.sai.msu.su/~megera/postgres/gist/gevel/)
This commit is contained in:
Teodor Sigaev
2005-03-31 15:08:08 +00:00
parent fd977434b3
commit fb13881f42
6 changed files with 35 additions and 10 deletions
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27
contrib/tsearch2/gistidx.c
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@ -54,6 +54,7 @@ Datum gtsvector_picksplit(PG_FUNCTION_ARGS);
GETBITBYTE(val,7) \
)
static int4 sizebitvec(BITVECP sign);
Datum
gtsvector_in(PG_FUNCTION_ARGS)
@ -64,13 +65,31 @@ gtsvector_in(PG_FUNCTION_ARGS)
PG_RETURN_DATUM(0);
}
#define SINGOUTSTR "%d true bits, %d false bits"
#define ARROUTSTR "%d unique words"
#define EXTRALEN ( 2*13 )
static int outbuf_maxlen = 0;
Datum
gtsvector_out(PG_FUNCTION_ARGS)
{
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("gtsvector_out not implemented")));
PG_RETURN_DATUM(0);
GISTTYPE *key = (GISTTYPE *) DatumGetPointer(PG_DETOAST_DATUM(PG_GETARG_POINTER(0)));
char *outbuf;
if ( outbuf_maxlen==0 )
outbuf_maxlen = 2*EXTRALEN + Max( strlen(SINGOUTSTR), strlen(ARROUTSTR) ) + 1;
outbuf = palloc( outbuf_maxlen );
if ( ISARRKEY(key) )
sprintf( outbuf, ARROUTSTR, ARRNELEM(key) );
else {
int cnttrue = ( ISALLTRUE(key) ) ? SIGLENBIT : sizebitvec(GETSIGN(key));
sprintf( outbuf, SINGOUTSTR, cnttrue, SIGLENBIT - cnttrue );
}
PG_FREE_IF_COPY(key,0);
PG_RETURN_POINTER(outbuf);
}
static int