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We have to return dummy tuple for empty targetlist!
authorVadim B. Mikheev <vadim4o@yahoo.com>
Wed, 10 Mar 1999 12:16:09 +0000 (12:16 +0000)
committerVadim B. Mikheev <vadim4o@yahoo.com>
Wed, 10 Mar 1999 12:16:09 +0000 (12:16 +0000)
commit2a76aa23e08e1b3b44865ef30fd72c05ef155e11
treed02d335eef10046e4cd957675f27d2400a5d3f66
parentf8f0efb43d764426265ed3bed6e3de792619ec2b
We have to return dummy tuple for empty targetlist!
Try select t1.x from t1, t2 where t1.y = 1 and t2.y = 1
- t2 scan target list will be empty and so no one tuple
will be returned...
src/backend/executor/execQual.c