I am working on date/time stuff, and in the spirit of cleaning up
interesting but marginally useful features I've dropped support for
"invalid" for the timestamp and timestamptz types.
To help with upgrading, I thought that I'd map it to a NULL value, and
see the following in the regression tests:
-- Obsolete special values
INSERT INTO TIMESTAMP_TBL VALUES ('invalid');
ERROR: OidFunctionCall3: function 1150 returned NULL
Is this error message a feature of all returns of NULL, particular to
input routines, or can I somehow mark routines as being allowed to
return NULL values?
Comments?
- Thomas
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