BUG #14829: join's parallel rows cost wrong

From: bucoo(at)sohu(dot)com
To: pgsql-bugs(at)postgresql(dot)org
Cc: bucoo(at)sohu(dot)com
Subject: BUG #14829: join's parallel rows cost wrong
Date: 2017-09-26 07:53:42
Message-ID: 20170926075342.1442.633@wrigleys.postgresql.org
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The following bug has been logged on the website:

Bug reference: 14829
Logged by: bucoo hsiao
Email address: bucoo(at)sohu(dot)com
PostgreSQL version: 10beta4
Operating system: all
Description:

join path's rows from outer path and final_cost_xxxjoin it
div(get_parallel_divisor) again, when outer path is GatherPath is rows div
twice

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