You're looking for a trigger, not a rule.
On Tue, 25 Mar 2008, Edward Blake wrote:
Thanks to everyone who's helped me before.
I'm trying to create the following mysql table in postgres:
CREATE TABLE visit (
data1 varchar(30) NOT NULL,
data2 varchar(30) DEFAULT NULL,
data3 timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE
CURRENT_TIMESTAMP);
Thus far, I've been able to get this far:
CREATE TABLE visit (
data1 varchar(30) NOT NULL,
data2 varchar(30) DEFAULT NULL,
data3 timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP);
CREATE RULE timestamp_update AS ON UPDATE TO visit
DO ALSO
UPDATE vist
SET data3 = CURRENT_TIMESTAMP;
I've tried multiple iterations of how to accomplish this and keep getting
stuck. With the one above, postgres yells and says:
ERROR: infinite recursion detected in rules for relation "visit"
Any ideas?
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