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Re: is there a mysql to postgresql sql converter?

From: Max Fonin <fonin(at)ziet(dot)zhitomir(dot)ua>
To: Clayton Cottingham <clayton(at)marketingchallenge(dot)com>
Cc: pgsql-sql(at)postgresql(dot)org
Subject: Re: is there a mysql to postgresql sql converter?
Date: 2000-11-18 12:08:47
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-generalpgsql-sql

> > Can give a link ?
> can do :
Thank you.

BTW, if you interested in this tool, I may send you fresh versions or place it on the web.

Maybe you will or somebody help me with one problem ? Do you know PL/pgSQL and how to create new type in Postgres ?
The problem is that I can't use new type constructed with CREATE TYPE if transform functions written on PL/pgSQL.
Because PL/pgSQL doesn't support type "opaque", or I do something wrong. The same function on PL/pgSQL with 
input argtype "text" or "int2" works fine, but when I simply change argtype to "opaque", I get "compilation error near line 0".
Source is below.

Max Rudensky.


CREATE FUNCTION enum_access_Monday_in (opaque)
	RETURNS enum_access_Monday
	AS '
	    invalue ALIAS for $1;
		IF invalue='''' OR invalue=''0'' THEN RETURN 0; END IF;
		IF invalue=''Monday'' OR invalue=''1'' THEN RETURN 1; END IF;
		IF invalue=''Tuesday'' OR invalue=''2'' THEN RETURN 2; END IF;
		IF invalue=''Wednesday'' OR invalue=''3'' THEN RETURN 3; END IF;
		RAISE EXCEPTION ''incorrect input value: %'',invalue;
	LANGUAGE 'plpgsql'
CREATE FUNCTION enum_access_Monday_out (opaque)
	RETURNS opaque
	AS '
	    outvalue ALIAS for $1;
		IF outvalue=0 THEN RETURN ''''; END IF;
		IF outvalue=1 THEN RETURN ''Monday''; END IF;
		IF outvalue=2 THEN RETURN ''Tuesday''; END IF;
		IF outvalue=3 THEN RETURN ''Wednesday''; END IF;
		RAISE EXCEPTION ''incorrect output value: %'',outvalue;
	LANGUAGE 'plpgsql'

CREATE TYPE enum_access_Monday (
	internallength = 2,
	input = enum_access_Monday_in,
	output = enum_access_Monday_out,


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