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From: Alex Ignatov <a.ignatov@postgrespro.ru>
To: pgsql-sql@postgresql.org
Subject: Strange DOMAIN  behavior
Date: Thu, 09 Jul 2015 13:03:59 +0300
Message-ID: <559E470F.6020002@postgrespro.ru> (raw)
List-Unsubscribe: <mailto:majordomo@postgresql.org?body=unsub%20pgsql-sql>

Hello everyone!!!
Got strange DOMAIN behavior in the following plpgsql code:

postgres=# DROP DOMAIN lexema_str CASCADE;
DROP DOMAIN
postgres=# CREATE DOMAIN lexema_str TEXT DEFAULT 'abc';
CREATE DOMAIN
postgres=# DO $$
postgres$# DECLARE
postgres$#    lex lexema_str;
postgres$# BEGIN
postgres$#    RAISE NOTICE 'lex = %', lex;
postgres$# END;
postgres$# $$;
NOTICE:  lex = <NULL>
DO

But i expect that lex = abc!

So default value of DOMAIN type is not set in pgplsql block but:

postgres=# DROP DOMAIN lexema_str CASCADE;
DROP DOMAIN
postgres=# CREATE DOMAIN lexema_str TEXT DEFAULT 'abc' NOT NULL;
CREATE DOMAIN
postgres=# DO $$
postgres$# DECLARE
postgres$#    lex lexema_str;
postgres$# BEGIN
postgres$#    RAISE NOTICE 'lex = %', lex;
postgres$# END;
postgres$# $$;
ERROR:  domain lexema_str does not allow null values
CONTEXT:  PL/pgSQL function inline_code_block line 4 during statement 
block local variable initialization

So constraints in DOMAIN type work in pgplsql !

Is this correct behavior??




-- 
Alex Ignatov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company


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