The following bug has been logged online:
Bug reference: 5400
Logged by: Teodor Buchner
Email address: t.buch...@autoguard.pl
PostgreSQL version: 8.4.1
Operating system: Linux
Description: Columns count mismatch in RULE with subquery
Details:
When SELECT INSERT syntax is used to pump data in a rule, an error appears
during creation of this rule if only SELECT has more than one argument.
ERROR: INSERT has more target columns than expressions
Stan SQL:42601
Znak:137
CREATE OR REPLACE RULE move_iteration_1 AS ON INSERT TO a.iteration DO ALSO
INSERT INTO b.iteration(id,date_period_begin)
SELECT (NEW.id,NEW.date_period_begin) FROM a.iteration;
The example is dummy as INSERT VALUES can be used here but it is impossible
to build any complex subquery instead. Reduction to a single variable
(removing date_period_begin from INSERT/SELECT) removes this error.
Rgds
TB
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