Question - Mailing list pgsql-general

From Robert Partyka
Subject Question
Date
Msg-id 3F8AA0DC.4060305@wdg.pl
Whole thread Raw
Responses Re: Question  (Gaetano Mendola <mendola@bigfoot.com>)
Re: Question  (Stephan Szabo <sszabo@megazone.bigpanda.com>)
List pgsql-general
Hi,

I have question:

why such condition:
foofield not like '%bar%'

where foofield is varchar

returns false (or rather even ignore row) on record where foofield is null
but
returns true on records where foofield is '' (empty string)

regards
Robert


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