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Simon Charette 277ed07209 Fixed #29195 -- Fixed Exists.output_field resolution on single-valued queries.
The Subquery class which Exists inherits from defaulted to using single-valued
querie's field if no output_field was explicitly specified on initialization
which was bypassing the Exists.output_field defined at the class level.

Moving Subquery's dynamic output_field resolution to _resolve_output_field
should make sure the fallback logic is only performed if required.

Regression in 08654a99bbdd09049d682ae57cc94241534b29f0.

Thanks Oli Warner for the detailed report.
2018-03-08 13:30:41 -05:00
2015-07-01 10:23:05 -04:00
2013-10-10 16:49:20 -04:00
2015-12-12 12:07:21 -05:00

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