pgsql: nbtree: Simplify _bt_first parallel scan handling.

From: Peter Geoghegan <pg(at)bowt(dot)ie>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: nbtree: Simplify _bt_first parallel scan handling.
Date: 2025-01-07 15:30:01
Message-ID: E1tVBWr-000LA5-02@gemulon.postgresql.org
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nbtree: Simplify _bt_first parallel scan handling.

This new structure relieves _bt_first from having separate calls to
_bt_start_array_keys for the serial case and parallel case. This saves
code, and seems clearer.

Follow-up to work from commits 4e6e375b and b5ee4e52.

Author: Peter Geoghegan <pg(at)bowt(dot)ie>
Reviewed-By: Matthias van de Meent <boekewurm+postgres(at)gmail(dot)com>
Discussion: https://postgr.es/m/CAH2-Wz=XjUZjBjHJdhTvuH5MwoJObWGoM2RG2LyFg5WUdWyk=A@mail.gmail.com

Branch
------
master

Details
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https://git.postgresql.org/pg/commitdiff/428a99b58960a2772c3a29235eb694054f666a28

Modified Files
--------------
src/backend/access/nbtree/nbtsearch.c | 80 +++++++++++++++--------------------
1 file changed, 34 insertions(+), 46 deletions(-)

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