pgsql: Infer functional dependency past RelabelType

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pgsql: Infer functional dependency past RelabelType

Álvaro Herrera
Infer functional dependency past RelabelType

Vars hidden within a RelabelType would not be detected as compatible
with some functional dependency.  Repair by properly ignoring the
RelabelType.

Author: David Rowley
Reviewed-by: Tomas Vondra
Discussion: https://postgr.es/m/CAKJS1f-y-UEy=rsBXynBOgiW1fKMr_LVoYSGL9QOc36mLEC-ww@...

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/e9ef11ac8bb2acc2d2462fc17ec3291a959589e7

Modified Files
--------------
src/backend/statistics/dependencies.c | 8 ++++++++
1 file changed, 8 insertions(+)


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