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From: Wei Weng <wweng@kencast.com>
To: 'pgsql-sql@postgresql.org' <pgsql-sql@postgresql.org>
Subject: Cast NULL into Timestamp?
Date: Fri, 10 Dec 2004 14:24:56 -0500
Message-ID: <41B9F808.2040909@kencast.com> (raw)

I have a table

create table temp
(
	tempdate	timestamp,
	tempname	varchar(10)
);

And I tried to insert the following:

insert into table temp (tempname, tempdate)
select distinct 'tempname', null from some_other_relevant_table;

And I got an error that says "column "tempdate" is of type timestamp ... but 
expression is of type text... will need to rewrite or cast the expression".

I really need the distinct. Is there anyway to cast this NULL into a 
timestamp or any other workarounds?


Thanks

Wei



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