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Fixes for vacuum_cleanup_index_scale_factor GUC option

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vacuum_cleanup_index_scale_factor was located in autovacuum group of
GUCs.  However, it affects not only autovacuum, but also manually run
VACUUM.  It appears that "client connection defaults" group of GUCs
is more appropriate for vacuum_cleanup_index_scale_factor, because
vacuum_*_age options are already located there.

Also, vacuum_cleanup_index_scale_factor was missed in
postgresql.conf.sample.  So, add it there with appropriate comment.

Author: Masahiko Sawada with minor editorization by me
Discussion: https://postgr.es/m/CAD21AoArsoXMLKudXSKN679FRzs6oubEchM53bHwn8Tp%3D2boNg%40mail.gmail.com
This commit is contained in:
Alexander Korotkov
2018-06-22 12:17:56 +03:00
parent 0aa5e65ab4
commit 9a994e37e0
3 changed files with 43 additions and 45 deletions
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3
src/backend/utils/misc/postgresql.conf.sample
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@ -575,6 +575,9 @@
#vacuum_freeze_table_age = 150000000
#vacuum_multixact_freeze_min_age = 5000000
#vacuum_multixact_freeze_table_age = 150000000
#vacuum_cleanup_index_scale_factor = 0.1 # fraction of total number of tuples
# before index cleanup, 0 always performs
# index cleanup
#bytea_output = 'hex' # hex, escape
#xmlbinary = 'base64'
#xmloption = 'content'