Re: [MonetDB-users] CREATE AGGREGATE error

This works. I now have to define the MAL function. thank you, -- Asterios On Wed, Jul 18, 2012 at 5:56 PM, Stefan Manegold wrote:

Try

CREATE AGGREGATE group_concat (val STRING) returns STRING external name ""."group_concat";

where ""."group_concat" refers to the MAL function (with the proper signature) that you provide.

Stefan

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I see, but in my case I want to define it myself - I don't expect group_concat to be implemented by Monet.

Does this mean also that I cannot define any aggregate functions in MonetDB?

thank you again, -- Asterios

On Wed, Jul 18, 2012 at 5:25 PM, Martin Kersten wrote:

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Hello

The message you refer too was a feature request. It is never implemented.

regards, Martin

On 7/18/12 4:53 PM, Asterios Katsifodimos wrote:

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Hello,

I am trying to define an aggregate function as I have seen in an old message in this list: http://sourceforge.net/mailarchive/message.php?msg_id=20582949

I am trying to define it as: CREATE AGGREGATE group_concat (BASETYPE = text, SFUNC = _group_concat, STYPE = text);

And I get this error: 42000!syntax error, unexpected '=' in: "create aggregate group_concat (basetype ="

Any ideas on what I'm doing wrong? I have already defined the _group_concat function as described in the same message mentioned earlier.

Running MonetDB v11.9.5 (Apr2012-SP1) on Linux.

thank you, Asterios

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