data types

I posted a question on JDBC yesterday because I was having data typing
problmes. But it is not a JDBC problem...

I am trying to populate an array

CREATE TABLE festival (
festivalID INTEGER PRIMARY KEY,
filmID INTEGER[] REFERENCES films
);

festivalID = 1998 etc.
filmID = {212, 104, xxx}

any attempt to insert data gives

"Unable to identify an operator '=' for types 'int4' and '_int4'"

Where did the _int4 type come from? How do I work around this?

TIA

Cheers

Tony Grant

--
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