Re: Unable to identify an operator '*=' for types 'character varying[]' and '"unknown"'

From: "Mike Leahy" <mgleahy(at)fes(dot)uwaterloo(dot)ca>
To: <pgsql-general(at)postgresql(dot)org>
Subject: Re: Unable to identify an operator '*=' for types 'character varying[]' and '"unknown"'
Date: 2003-10-10 20:37:54
Message-ID: 000201c38f6e$61f75700$27916181@mgltoshiba
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Okay...I answered my own question. I didn't understand from the directions
that I had to compile and install the dll in contrib/array and run the
array_iterator.sql.

It works like a charm now.

Mike

-----Original Message-----
From: Mike Leahy [mailto:mgleahy(at)fes(dot)uwaterloo(dot)ca]
Sent: October 10, 2003 3:41 PM
To: 'pgsql-general(at)postgresql(dot)org'
Subject: Unable to identify an operator '*=' for types 'character varying[]'
and '"unknown"'

Okay.I'm following the documentation that came with the PostgreSQL source
code (located in /usr/doc/postgresql-7.3.4-2/html/arrays.hmtl in my cygwin
root).

I created have a table with a varchar array in it, kind of like the
following:

CREATE TABLE tbl_db_usuario_detalles (NOMBRE varchar(50), COD_USE
varchar(6)[]);

I've added a single record that has two values. It is imported from a
tab-separated text file that has one line, like the following:

Username {xxxxxx,yyyyyy}

The import seems to work fine (if I put quotes around the string values in
the array it fails).

When I do a select statement with the *= operator, I get the following
results:

db=# Select * from tbl_db_usuario_detalles where cod_use *= 'xxxxxx';
ERROR: Unable to identify an operator '*=' for types 'character varying[]'
and '"unknown"'
You will have to retype this query using an explicit cast

I don't really understand this error. So I tried the next select statement,
which doesn't give me an error, but I get zero results, when I would have
guessed there would be:

Select * from tbl_db_usuario_detalles where cod_use[0] = 'xxxxxx';

I'm guessing the values I have for the array are not correct...any
suggestions?

Thanks,
Mike

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