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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 00:33:06 +00:00
parent cda3e5836e
commit d4b49b4bd4
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 * back to source text
* *
* IDENTIFICATION * IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.186 2004/12/11 23:26:45 tgl Exp $ * $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.187 2004/12/13 00:33:06 tgl Exp $
* *
* This software is copyrighted by Jan Wieck - Hamburg. * This software is copyrighted by Jan Wieck - Hamburg.
* *
@ -3903,7 +3903,8 @@ get_from_clause_item(Node *jtnode, Query *query, deparse_context *context)
bool need_paren_on_right; bool need_paren_on_right;
need_paren_on_right = PRETTY_PAREN(context) && 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) if (!PRETTY_PAREN(context) || j->alias != NULL)
appendStringInfoChar(buf, '('); appendStringInfoChar(buf, '(');