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Add ONLY support to LOCK and TRUNCATE. By default, these commands are now

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recursive.

=> Note this incompatibility in the release notes.
This commit is contained in:
Peter Eisentraut
2009-01-12 08:54:27 +00:00
parent b7b8f0b609
commit ca8100f9eb
7 changed files with 287 additions and 38 deletions
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21
src/backend/parser/gram.y
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@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.652 2009/01/07 22:54:45 momjian Exp $
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.653 2009/01/12 08:54:26 petere Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@@ -284,6 +284,7 @@ static TypeName *TableFuncTypeName(List *columns);
execute_param_clause using_clause returning_clause
enum_val_list table_func_column_list
create_generic_options alter_generic_options
relation_expr_list
%type <range> OptTempTableName
%type <into> into_clause create_as_target
@@ -3794,7 +3795,7 @@ attrs: '.' attr_name
*****************************************************************************/
TruncateStmt:
TRUNCATE opt_table qualified_name_list opt_restart_seqs opt_drop_behavior
TRUNCATE opt_table relation_expr_list opt_restart_seqs opt_drop_behavior
{
TruncateStmt *n = makeNode(TruncateStmt);
n->relations = $3;
@@ -6558,7 +6559,15 @@ using_clause:
| /*EMPTY*/ { $$ = NIL; }
;
LockStmt: LOCK_P opt_table qualified_name_list opt_lock opt_nowait
/*****************************************************************************
*
* QUERY:
* LOCK TABLE
*
*****************************************************************************/
LockStmt: LOCK_P opt_table relation_expr_list opt_lock opt_nowait
{
LockStmt *n = makeNode(LockStmt);
@@ -7487,6 +7496,12 @@ relation_expr:
;
relation_expr_list:
relation_expr { $$ = list_make1($1); }
| relation_expr_list ',' relation_expr { $$ = lappend($1, $3); }
;
/*
* Given "UPDATE foo set set ...", we have to decide without looking any
* further ahead whether the first "set" is an alias or the UPDATE's SET