diff options
Diffstat (limited to 'contrib/tsearch2/query_support.c')
| -rw-r--r-- | contrib/tsearch2/query_support.c | 205 |
1 files changed, 0 insertions, 205 deletions
diff --git a/contrib/tsearch2/query_support.c b/contrib/tsearch2/query_support.c deleted file mode 100644 index 57332cba1e8..00000000000 --- a/contrib/tsearch2/query_support.c +++ /dev/null @@ -1,205 +0,0 @@ -#include "postgres.h" -#include "fmgr.h" - -#include "query_util.h" - -PG_FUNCTION_INFO_V1(tsquery_numnode); -Datum tsquery_numnode(PG_FUNCTION_ARGS); - -Datum -tsquery_numnode(PG_FUNCTION_ARGS) -{ - QUERYTYPE *query = (QUERYTYPE *) DatumGetPointer(PG_DETOAST_DATUM_COPY(PG_GETARG_DATUM(0))); - int nnode = query->size; - - PG_FREE_IF_COPY(query, 0); - PG_RETURN_INT32(nnode); -} - -static QTNode * -join_tsqueries(QUERYTYPE * a, QUERYTYPE * b) -{ - QTNode *res = (QTNode *) palloc0(sizeof(QTNode)); - - res->flags |= QTN_NEEDFREE; - - res->valnode = (ITEM *) palloc0(sizeof(ITEM)); - res->valnode->type = OPR; - - res->child = (QTNode **) palloc0(sizeof(QTNode *) * 2); - res->child[0] = QT2QTN(GETQUERY(b), GETOPERAND(b)); - res->child[1] = QT2QTN(GETQUERY(a), GETOPERAND(a)); - res->nchild = 2; - - return res; -} - -PG_FUNCTION_INFO_V1(tsquery_and); -Datum tsquery_and(PG_FUNCTION_ARGS); - -Datum -tsquery_and(PG_FUNCTION_ARGS) -{ - QUERYTYPE *a = (QUERYTYPE *) DatumGetPointer(PG_DETOAST_DATUM_COPY(PG_GETARG_DATUM(0))); - QUERYTYPE *b = (QUERYTYPE *) DatumGetPointer(PG_DETOAST_DATUM_COPY(PG_GETARG_DATUM(1))); - QTNode *res; - QUERYTYPE *query; - - if (a->size == 0) - { - PG_FREE_IF_COPY(a, 1); - PG_RETURN_POINTER(b); - } - else if (b->size == 0) - { - PG_FREE_IF_COPY(b, 1); - PG_RETURN_POINTER(a); - } - - res = join_tsqueries(a, b); - - res->valnode->val = '&'; - - query = QTN2QT(res, PlainMemory); - - QTNFree(res); - PG_FREE_IF_COPY(a, 0); - PG_FREE_IF_COPY(b, 1); - - PG_RETURN_POINTER(query); -} - -PG_FUNCTION_INFO_V1(tsquery_or); -Datum tsquery_or(PG_FUNCTION_ARGS); - -Datum -tsquery_or(PG_FUNCTION_ARGS) -{ - QUERYTYPE *a = (QUERYTYPE *) DatumGetPointer(PG_DETOAST_DATUM_COPY(PG_GETARG_DATUM(0))); - QUERYTYPE *b = (QUERYTYPE *) DatumGetPointer(PG_DETOAST_DATUM_COPY(PG_GETARG_DATUM(1))); - QTNode *res; - QUERYTYPE *query; - - if (a->size == 0) - { - PG_FREE_IF_COPY(a, 1); - PG_RETURN_POINTER(b); - } - else if (b->size == 0) - { - PG_FREE_IF_COPY(b, 1); - PG_RETURN_POINTER(a); - } - - res = join_tsqueries(a, b); - - res->valnode->val = '|'; - - query = QTN2QT(res, PlainMemory); - - QTNFree(res); - PG_FREE_IF_COPY(a, 0); - PG_FREE_IF_COPY(b, 1); - - PG_RETURN_POINTER(query); -} - -PG_FUNCTION_INFO_V1(tsquery_not); -Datum tsquery_not(PG_FUNCTION_ARGS); - -Datum -tsquery_not(PG_FUNCTION_ARGS) -{ - QUERYTYPE *a = (QUERYTYPE *) DatumGetPointer(PG_DETOAST_DATUM_COPY(PG_GETARG_DATUM(0))); - QTNode *res; - QUERYTYPE *query; - - if (a->size == 0) - PG_RETURN_POINTER(a); - - res = (QTNode *) palloc0(sizeof(QTNode)); - - res->flags |= QTN_NEEDFREE; - - res->valnode = (ITEM *) palloc0(sizeof(ITEM)); - res->valnode->type = OPR; - res->valnode->val = '!'; - - res->child = (QTNode **) palloc0(sizeof(QTNode *)); - res->child[0] = QT2QTN(GETQUERY(a), GETOPERAND(a)); - res->nchild = 1; - - query = QTN2QT(res, PlainMemory); - - QTNFree(res); - PG_FREE_IF_COPY(a, 0); - - PG_RETURN_POINTER(query); -} - -static int -CompareTSQ(QUERYTYPE * a, QUERYTYPE * b) -{ - if (a->size != b->size) - { - return (a->size < b->size) ? -1 : 1; - } - else if (VARSIZE(a) != VARSIZE(b)) - { - return (VARSIZE(a) < VARSIZE(b)) ? -1 : 1; - } - else - { - QTNode *an = QT2QTN(GETQUERY(a), GETOPERAND(a)); - QTNode *bn = QT2QTN(GETQUERY(b), GETOPERAND(b)); - int res = QTNodeCompare(an, bn); - - QTNFree(an); - QTNFree(bn); - - return res; - } - - return 0; -} - -PG_FUNCTION_INFO_V1(tsquery_cmp); -\ -Datum tsquery_cmp(PG_FUNCTION_ARGS); - -Datum -tsquery_cmp(PG_FUNCTION_ARGS) -{ - QUERYTYPE *a = (QUERYTYPE *) DatumGetPointer(PG_DETOAST_DATUM_COPY(PG_GETARG_DATUM(0))); - QUERYTYPE *b = (QUERYTYPE *) DatumGetPointer(PG_DETOAST_DATUM_COPY(PG_GETARG_DATUM(1))); - int res = CompareTSQ(a, b); - - PG_FREE_IF_COPY(a, 0); - PG_FREE_IF_COPY(b, 1); - - PG_RETURN_INT32(res); -} - -#define CMPFUNC( NAME, ACTION ) \ -Datum NAME(PG_FUNCTION_ARGS); \ - \ -Datum \ -NAME(PG_FUNCTION_ARGS) { \ - QUERYTYPE *a = (QUERYTYPE *) DatumGetPointer(PG_DETOAST_DATUM_COPY(PG_GETARG_DATUM(0))); \ - QUERYTYPE *b = (QUERYTYPE *) DatumGetPointer(PG_DETOAST_DATUM_COPY(PG_GETARG_DATUM(1))); \ - int res = CompareTSQ(a,b); \ - \ - PG_FREE_IF_COPY(a,0); \ - PG_FREE_IF_COPY(b,1); \ - \ - PG_RETURN_BOOL( ACTION ); \ -} \ - \ -PG_FUNCTION_INFO_V1(NAME) - -CMPFUNC(tsquery_lt, res < 0); -CMPFUNC(tsquery_le, res <= 0); -CMPFUNC(tsquery_eq, res == 0); -CMPFUNC(tsquery_ge, res >= 0); -CMPFUNC(tsquery_gt, res > 0); -CMPFUNC(tsquery_ne, res != 0); |