Hello:
I'm trying to define a function that, given a date, returns its month.
The definition is as follows:
CREATE function anyo_hidro (date) returns int AS ' BEGIN RETURN date_part("month",$1); END;
' LANGUAGE 'plpgsql';
But when I do:
select anyo_hidro('1-1-1999');
I get the following error:
ERROR: Attribute 'month' not found
Why doesn't date_part work with pl/sql functions?
Thanks
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