pgsql: Simplify cost_incremental_sort a bit

From: Tomas Vondra <tomas(dot)vondra(at)postgresql(dot)org>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: Simplify cost_incremental_sort a bit
Date: 2020-05-01 23:35:14
Message-ID: E1jUfBa-0006ZJ-Ht@gemulon.postgresql.org
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Simplify cost_incremental_sort a bit

Commit de0dc1a847 added code to cost_incremental_sort to handle varno 0.
Explicitly removing the RelabelType is not really necessary, because the
pull_varnos handles that just fine, which simplifies the code a bit.

Author: Richard Guo
Discussion: https://postgr.es/m/CAMbWs4_3_D2J5XxOuw68hvn0-gJsw9FXNSGcZka9aTymn9UJ8A%40mail.gmail.com
Discussion: https://postgr.es/m/20200411214639.GK2228%40telsasoft.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/60fbb4d762506c352c1af1229288a0753742cd95

Modified Files
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src/backend/optimizer/path/costsize.c | 12 +-----------
1 file changed, 1 insertion(+), 11 deletions(-)

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