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Instead of supposing (wrongly, in the general case) that the rowtype

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of an inheritance child table is binary-compatible with the rowtype of
its parent, invent an expression node type that does the conversion
correctly.  Fixes the new bug exhibited by Kris Shannon as well as a
lot of old bugs that would only show up when using multiple inheritance
or after altering the parent table.
This commit is contained in:
Tom Lane
2004-12-11 23:26:51 +00:00
parent fd536dd257
commit 12b1b5d837
15 changed files with 356 additions and 71 deletions
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5
src/pl/plpgsql/src/pl_exec.c
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@@ -3,7 +3,7 @@
* procedural language
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/pl/plpgsql/src/pl_exec.c,v 1.123 2004/11/30 03:50:29 neilc Exp $
* $PostgreSQL: pgsql/src/pl/plpgsql/src/pl_exec.c,v 1.124 2004/12/11 23:26:51 tgl Exp $
*
* This software is copyrighted by Jan Wieck - Hamburg.
*
@@ -4024,6 +4024,9 @@ exec_simple_check_node(Node *node)
case T_RelabelType:
return exec_simple_check_node((Node *) ((RelabelType *) node)->arg);
case T_ConvertRowtypeExpr:
return exec_simple_check_node((Node *) ((ConvertRowtypeExpr *) node)->arg);
case T_CaseExpr:
{
CaseExpr *expr = (CaseExpr *) node;