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Add maintenance_io_concurrency flag to some read stream users

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Index vacuuming and [auto]prewarm AIO concurrency should be governed by
maintenance_io_concurrency. As such, pass those read stream users the
READ_STREAM_MAINTENANCE flag which will calculate their read stream
distance with maintenance_io_concurrency instead of
effective_io_concurrency. This was an oversight in the original commits
making those operations use the read stream API.

Discussion: https://postgr.es/m/flat/CAAKRu_aopDxTo4b41Mt_7Zc-z0_ngocrY8SFCCY6Aph1HgwuNw%40mail.gmail.com
This commit is contained in:
Melanie Plageman
2025-04-28 14:19:45 -04:00
parent ce72e7e02e
commit f132815fd7
5 changed files with 10 additions and 5 deletions
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3
src/backend/access/spgist/spgvacuum.c
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@@ -827,7 +827,8 @@ spgvacuumscan(spgBulkDeleteState *bds)
* It is safe to use batchmode as block_range_read_stream_cb takes no
* locks.
*/
stream = read_stream_begin_relation(READ_STREAM_FULL |
stream = read_stream_begin_relation(READ_STREAM_MAINTENANCE |
READ_STREAM_FULL |
READ_STREAM_USE_BATCHING,
bds->info->strategy,
index,