database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-03 20:02:46 +03:00
Code Activity

From: "Martin J. Laubach" <mjl@CSlab.tuwien.ac.at>

Browse Source 
Subject: [HACKERS] Patch: SET var TO 'val'

  Here is a patch that adds a "SET variable TO 'somevalue'" capability
to the parser, and then calls the SetPGVariable() function (which does
just issue a elog(NOTICE) to see whether it works).

  That's the framework for adding timezone/date format/language/...
stuff.
This commit is contained in:
Marc G. Fournier
1997-04-02 18:24:52 +00:00
parent 17b5bd33e4
commit a51df14a69
5 changed files with 59 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
src/backend/parser/gram.y
View File

@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.28 1997/04/02 04:01:03 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.29 1997/04/02 18:23:07 scrappy Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@ -108,11 +108,12 @@ static Node *makeA_Expr(int oper, char *opname, Node *lexpr, Node *rexpr);
RevokeStmt, RuleStmt, TransactionStmt, ViewStmt, LoadStmt,
CreatedbStmt, DestroydbStmt, VacuumStmt, RetrieveStmt, CursorStmt,
ReplaceStmt, AppendStmt, NotifyStmt, DeleteStmt, ClusterStmt,
ExplainStmt
ExplainStmt, VariableSetStmt
%type <str> relation_name, copy_file_name, copy_delimiter, def_name,
database_name, access_method_clause, access_method, attr_name,
class, index_name, var_name, name, file_name, recipe_name
class, index_name, var_name, name, file_name, recipe_name,
var_name
%type <str> opt_id, opt_portal_name,
before_clause, after_clause, all_Op, MathOp, opt_name, opt_unique,
@ -168,7 +169,7 @@ static Node *makeA_Expr(int oper, char *opname, Node *lexpr, Node *rexpr);
%type <ival> Iconst
%type <str> Sconst
%type <str> Id, date
%type <str> Id, date, var_value
/*
@ -273,6 +274,30 @@ stmt : AddAttrStmt
| CreatedbStmt
| DestroydbStmt
| VacuumStmt
| VariableSetStmt
;
/*****************************************************************************
*
* Set PG internal variable
* SET var_name TO 'var_value'
*
*****************************************************************************/
VariableSetStmt: SET var_name TO var_value
{
VariableSetStmt *n = makeNode(VariableSetStmt);
n->name = $2;
n->value = $4;
$$ = (Node *) n;
}
;
var_name: Id { $$ = $1; }
;
var_value: Sconst { $$ = $1; }
;
/*****************************************************************************