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From: Emi Lu <emilu@encs.concordia.ca>
To: pgsql-sql@postgresql.org
Subject: how to get the size of array?
Date: Tue, 14 Mar 2006 15:48:55 -0500
Message-ID: <44172C37.90804@encs.concordia.ca> (raw)

Hello,

Is there a way that I can get the size of one array ?

For example, create table test (id varchar[]);
insert into test values('{}');
insert into test values('{1, 2, 3}');

I am looking for something like :
   select sizeOf(id) as size from test;


so that I can get results like:
size
-------
0
3

Thanks a lot,
Ying




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