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Guard against NULL strings in SET key=val constructs.

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Problem noted by Fernando Nasser.
This commit is contained in:
Thomas G. Lockhart 2002-03-09 17:37:16 +00:00
parent ee2154829e
commit f20509551d
1 changed files with 7 additions and 4 deletions
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11
src/backend/parser/gram.y
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@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.288 2002/03/08 04:37:17 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.289 2002/03/09 17:37:16 thomas Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@ -790,14 +790,16 @@ VariableSetStmt: SET ColId TO var_value
{
VariableSetStmt *n = makeNode(VariableSetStmt);
n->name = $2;
n->args = makeList1(makeStringConst($4, NULL));
if ($4 != NULL)
n->args = makeList1(makeStringConst($4, NULL));
$$ = (Node *) n;
}
| SET ColId '=' var_value
{
VariableSetStmt *n = makeNode(VariableSetStmt);
n->name = $2;
n->args = makeList1(makeStringConst($4, NULL));
if ($4 != NULL)
n->args = makeList1(makeStringConst($4, NULL));
$$ = (Node *) n;
}
| SET TIME ZONE zone_value
@ -826,7 +828,8 @@ VariableSetStmt: SET ColId TO var_value
{
VariableSetStmt *n = makeNode(VariableSetStmt);
n->name = "client_encoding";
n->args = makeList1(makeStringConst($3, NULL));
if ($3 != NULL)
n->args = makeList1(makeStringConst($3, NULL));
$$ = (Node *) n;
}
| SET SESSION AUTHORIZATION ColId_or_Sconst