From: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
---|---|
To: | anushasrivastava03 <anushasrivastava03(at)yahoo(dot)co(dot)in> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: checking schema present or not by passing schema name as parameter |
Date: | 2013-06-06 11:40:00 |
Message-ID: | CAFj8pRB6Gq+9-qLRc0MuXQKq-USnYBrABNJQacEV8-e7WLwj8A@mail.gmail.com |
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Thread: | |
Lists: | pgsql-general |
Hello
2013/6/6 anushasrivastava03 <anushasrivastava03(at)yahoo(dot)co(dot)in>:
> i am checking if schema present or not and passing schema name dynamically
> but it's trowing an error :
>
>
> CREATE OR REPLACE FUNCTION chkschema(schemaname text)
> RETURNS boolean AS
> $BODY$
> DECLARE
> i boolean;
> BEGIN
>
> EXECUTE 'SELECT exists(select schema_name FROM information_schema.schemata
> WHERE schema_name = '||quote_ident(schemaname)||')'
> INTO i ;
why do you use EXEC there
do only
BEGIN
IF EXISTS(SELECT * FROM information_schema.schemata WHERE
schema_name = 'secc_master'_ THEN
...
ELSE
...
END IF;
>
> IF i THEN
>
> return i;
> else
>
> return i;
> end if;
>
> end;
> $BODY$
> LANGUAGE plpgsql
>
> ERROR: column "secc_master" does not exist
> LINE 1: ...M information_schema.schemata WHERE schema_name = secc_maste...
you have to use quote_literal function there, not quote_ident.
Regards
Pavel
> ^
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