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Avoid generating excess (and illegal) parentheses around an aliased JOIN

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in prettyprint mode.  Andreas Pflug
This commit is contained in:
Tom Lane
2004-12-13 00:33:18 +00:00
parent 92065453d7
commit 1d3ee97a3c
1 changed files with 3 additions and 2 deletions
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5
src/backend/utils/adt/ruleutils.c
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@ -3,7 +3,7 @@
* back to source text
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/ruleutils.c,v 1.157.2.2 2004/07/06 04:50:54 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/ruleutils.c,v 1.157.2.3 2004/12/13 00:33:18 tgl Exp $
*
* This software is copyrighted by Jan Wieck - Hamburg.
*
@ -3816,7 +3816,8 @@ get_from_clause_item(Node *jtnode, Query *query, deparse_context *context)
bool need_paren_on_right;
need_paren_on_right = PRETTY_PAREN(context) &&
!IsA(j->rarg, RangeTblRef);
!IsA(j->rarg, RangeTblRef) &&
!(IsA(j->rarg, JoinExpr) && ((JoinExpr*)j->rarg)->alias != NULL);
if (!PRETTY_PAREN(context) || j->alias != NULL)
appendStringInfoChar(buf, '(');