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Still another place to make the world safe for zero-column tables:

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remove the ancient (and always pretty dodgy) assumption in parse_clause.c
that a query can't have an empty targetlist.
This commit is contained in:
Tom Lane
2004-05-23 17:10:54 +00:00
parent a712570880
commit 27edff700e
3 changed files with 34 additions and 30 deletions
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8
src/include/parser/parse_clause.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/parser/parse_clause.h,v 1.40 2004/01/23 02:13:12 neilc Exp $
* $PostgreSQL: pgsql/src/include/parser/parse_clause.h,v 1.41 2004/05/23 17:10:54 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -27,11 +27,11 @@ extern Node *transformWhereClause(ParseState *pstate, Node *clause,
extern Node *transformLimitClause(ParseState *pstate, Node *clause,
const char *constructName);
extern List *transformGroupClause(ParseState *pstate, List *grouplist,
List *targetlist, List *sortClause);
List **targetlist, List *sortClause);
extern List *transformSortClause(ParseState *pstate, List *orderlist,
List *targetlist, bool resolveUnknown);
List **targetlist, bool resolveUnknown);
extern List *transformDistinctClause(ParseState *pstate, List *distinctlist,
List *targetlist, List **sortClause);
List **targetlist, List **sortClause);
extern List *addAllTargetsToSortList(ParseState *pstate,
List *sortlist, List *targetlist,