Dear Pavel,Thanks a lot...It worked.Regards,Venkat| From: | Pavel Stehule <pavel.stehule@gmail.com> |
| To: | venkatrao.b@tcs.com |
| Cc: | pgsql-novice@postgresql.org, pgsql-general@postgresql.org |
| Date: | 03/09/2010 04:07 PM |
| Subject: | Re: [GENERAL] Can we overload = operator to word numeric = text |
2010/3/9 <venkatrao.b@tcs.com>:
>
> Hello,
>
> We have migrated oracle database to postgre.
> In oracle char to numeric type conversion is explicit (i.e. we can compare
> char = numeric); but in postgre it is throwing errors. There are so many
> functions - around 2000, and we can not go and do explict type casting in
> every function , where there is problem.
>
> Is there any way to come out of this problem. I mean is there any way to
> make = operator work for numeric = charater varying .
> Your suggestions are highly appreciated.
try
create or replace function num_text_eq(numeric, varchar)
returns bool as $$
select $1 = $2::numeric$$
language sql;
create operator = ( leftarg=numeric, rightarg=varchar, procedure=num_text_eq);
postgres=# select 10='10';
?column?
----------
t
(1 row)
regards
Pavel Stehule
>
> Venkat
>
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