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CASE WHEN ERROR: Void value - Mailing list pgsql-general

From Thomas T. Thai
Subject CASE WHEN ERROR: Void value
Date
Msg-id Pine.NEB.4.44.0303200251580.13142-100000@ns01.minnesota.com
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What does this error mean:

tsearch=# select case when title_fts is null then '' else title_fts end
from article;
ERROR:  Void value
tsearch=#

title_fts is datatype txtidx. If the '' is replaced with 'anything' then
it works fine.

--
Thomas T. Thai

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