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Allow UNION in subselect.

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This commit is contained in:
Bruce Momjian 1998-07-15 15:56:36 +00:00
parent 9e964f90fb
commit 86883aec4f
2 changed files with 2945 additions and 2920 deletions
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5861
src/backend/parser/gram.c
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4
src/backend/parser/gram.y
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@ -10,7 +10,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.13 1998/07/08 14:04:09 thomas Exp $ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.14 1998/07/15 15:56:36 momjian Exp $
* *
* HISTORY * HISTORY
* AUTHOR DATE MAJOR EVENT * AUTHOR DATE MAJOR EVENT
@ -2444,6 +2444,7 @@ select_list: select_list UNION opt_union SubSelect
SubSelect: SELECT opt_unique res_target_list2 SubSelect: SELECT opt_unique res_target_list2
from_clause where_clause from_clause where_clause
group_clause having_clause group_clause having_clause
union_clause
{ {
SelectStmt *n = makeNode(SelectStmt); SelectStmt *n = makeNode(SelectStmt);
n->unique = $2; n->unique = $2;
@ -2453,6 +2454,7 @@ SubSelect: SELECT opt_unique res_target_list2
n->whereClause = $5; n->whereClause = $5;
n->groupClause = $6; n->groupClause = $6;
n->havingClause = $7; n->havingClause = $7;
n->unionClause = $8;
$$ = (Node *)n; $$ = (Node *)n;
} }
; ;