Fix rwrite(ARRAY) on 64-bit boxes:

Instead of getting elements of array manually call deconstruct_array

Author: feodor

contrib/tsearch2/expected/tsearch2.out

@@ -13,12 +13,12 @@ psql:tsearch2.sql:342: NOTICE:  argument type tsvector is only a shell
 psql:tsearch2.sql:396: NOTICE:  type "tsquery" is not yet defined
 DETAIL:  Creating a shell type definition.
 psql:tsearch2.sql:401: NOTICE:  argument type tsquery is only a shell
-psql:tsearch2.sql:543: NOTICE:  type "gtsvector" is not yet defined
+psql:tsearch2.sql:544: NOTICE:  type "gtsvector" is not yet defined
 DETAIL:  Creating a shell type definition.
-psql:tsearch2.sql:548: NOTICE:  argument type gtsvector is only a shell
-psql:tsearch2.sql:997: NOTICE:  type "gtsq" is not yet defined
+psql:tsearch2.sql:549: NOTICE:  argument type gtsvector is only a shell
+psql:tsearch2.sql:998: NOTICE:  type "gtsq" is not yet defined
 DETAIL:  Creating a shell type definition.
-psql:tsearch2.sql:1002: NOTICE:  argument type gtsq is only a shell
+psql:tsearch2.sql:1003: NOTICE:  argument type gtsq is only a shell
 --tsvector
 SELECT '1'::tsvector;
  tsvector 

contrib/tsearch2/query_rewrite.c

@@ -201,6 +201,8 @@ rewrite_accum(PG_FUNCTION_ARGS) {
 	QUERYTYPE	*q;
 	QTNode		*qex, *subs = NULL, *acctree;
 	bool isfind = false;
+	Datum		*elemsp;
+	int		nelemsp;
 
 	AggregateContext = ((AggState *) fcinfo->context)->aggcontext;
 
@@ -230,29 +232,36 @@ rewrite_accum(PG_FUNCTION_ARGS) {
 	if (ARR_ELEMTYPE(qa) != tsqOid)
 		elog(ERROR, "array should contain tsquery type");
 
-	q = (QUERYTYPE*)ARR_DATA_PTR(qa);
-	if ( q->size == 0 ) 
+	deconstruct_array(qa, tsqOid, -1, false, 'i', &elemsp, &nelemsp); 
+
+	q = (QUERYTYPE*)DatumGetPointer( elemsp[0] );
+	if ( q->size == 0 ) {
+		pfree( elemsp ); 
 		PG_RETURN_POINTER( acc );
+	}
 
 	if ( !acc->size ) {
-		if ( acc->len > HDRSIZEQT )
+		if ( acc->len > HDRSIZEQT ) {
+			pfree( elemsp ); 
 			PG_RETURN_POINTER( acc );	
-		else
+		} else
 			acctree = QT2QTN( GETQUERY(q), GETOPERAND(q) );
 	} else 
 		acctree = QT2QTN( GETQUERY(acc), GETOPERAND(acc) );
 
 	QTNTernary( acctree );
 	QTNSort( acctree );
 
-	q = (QUERYTYPE*)( ((char*)ARR_DATA_PTR(qa)) + MAXALIGN( q->len ) );
-	if ( q->size == 0 ) 
+	q = (QUERYTYPE*)DatumGetPointer( elemsp[1] );
+	if ( q->size == 0 ) { 
+		pfree( elemsp ); 
 		PG_RETURN_POINTER( acc );
+	}
 	qex = QT2QTN( GETQUERY(q), GETOPERAND(q) );
 	QTNTernary( qex );
 	QTNSort( qex );
 
-	q = (QUERYTYPE*)( ((char*)q) + MAXALIGN( q->len ) );
+	q = (QUERYTYPE*)DatumGetPointer( elemsp[2] );
 	if ( q->size ) 
 		subs = QT2QTN( GETQUERY(q), GETOPERAND(q) );
 
@@ -270,6 +279,7 @@ rewrite_accum(PG_FUNCTION_ARGS) {
 		}
 	}
 
+	pfree( elemsp ); 
 	QTNFree( qex );	
 	QTNFree( subs );
 	QTNFree( acctree );

contrib/tsearch2/tsearch.sql.in

@@ -402,6 +402,7 @@ LANGUAGE 'C' with (isstrict);
 
 CREATE TYPE tsquery (
         INTERNALLENGTH = -1,
+        ALIGNMENT = int4,
         INPUT = tsquery_in,
         OUTPUT = tsquery_out
 );