Hi Did you try setting a default value to the field? Atte JRBM
El lun, 8 dic 2025 a las 21:40, Igor Korot (<[email protected]>) escribió: > Hi, ALL, > Consider the following scenario: > > CREATE TABLE test(a INT, b VARCHAR(256), c INT, d VARCHAR(256), /* > more fields follows*/); > CREATE UNIQUE INDEX test_x( b, c, d ); > > Now I try to do: > > INSERT INTO test VALUES( 0, 'abc', 12345, (SELECT foo FROM bar), > /*more data follow*/); > > My problem is: > > The SELECT can either return data or NULL. > Everything is good when the data is returned, but the insert fails > when the NULL is returned, because the field "d" is a part of UNIQUE > INDEX. > > However,, I'd like to still insert the record and I'd like to do something > like: > > INSERT INTO test VALUES( 0, 'abc', 12345, IF( (SELECT foo FROM bar) == > NULL, "postgres", <select_result>), /*more data follow*/); > > What would be the best way to achieve this? > > Thank you.. > > >
