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6ca33a885b
postgresql/src/backend
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Alexander Korotkov 6ca33a885b Increase upper limit for vacuum_cleanup_index_scale_factor 
Upper limits for vacuum_cleanup_index_scale_factor GUC and reloption
were initially set to 100.0 in 857f9c36.  However, after further
discussion, it appears that some users like to disable B-tree cleanup
index scan completely (assuming there are no deleted pages).

vacuum_cleanup_index_scale_factor is used barely to protect against
stalled index statistics.  And after detailed consideration it appears
that risk of stalled index statistics is low.  And it would be nice to
allow advanced users setting higher values of
vacuum_cleanup_index_scale_factor.  So, set upper limit for these
GUC and reloption to DBL_MAX.

Author: Alexander Korotkov
Reviewed-by: Masahiko Sawada
Discussion: https://postgr.es/m/CAC8Q8tJCb%3DgxhzcV7T6ctx7PY-Ux1oA-AsTJc6cAVNsQiYcCzA%40mail.gmail.com
2018-06-26 15:00:51 +03:00
..
access Increase upper limit for vacuum_cleanup_index_scale_factor 2018-06-26 15:00:51 +03:00
bootstrap Message wording and pluralization improvements 2018-05-17 23:05:27 -04:00
catalog Allow for pg_upgrade of attributes with missing values 2018-06-22 08:42:36 -04:00
commands When index recurses to a partition, map columns numbers 2018-06-22 16:45:48 -04:00
executor Fix some ill-chosen names for globally-visible partition support functions. 2018-06-13 13:18:02 -04:00
foreign Remove bogus "extern" annotations on function definitions. 2018-02-19 12:07:44 -05:00
jit Fix typo in JIT README. 2018-06-09 09:33:53 -07:00
lib Add missing files to src/backend/lib/README. 2018-05-22 13:25:28 +03:00
libpq Add missing serial commas 2018-06-07 23:37:09 -04:00
main Update copyright for 2018 2018-01-02 23:30:12 -05:00
nodes Assorted cosmetic cleanup of run-time-partition-pruning code. 2018-06-10 18:24:34 -04:00
optimizer Avoid generating bogus paths with partitionwise aggregate. 2018-06-22 09:20:19 -04:00
parser Consider syntactic form when disambiguating function vs column reference. 2018-06-18 11:39:33 -04:00
partitioning Consistently use the term 'partitioned rel' in partprune comments 2018-06-20 11:43:01 -04:00
po Translation updates 2018-06-25 12:37:18 +02:00
port Remove investigative code for can't-reattach-to-shared-memory errors. 2018-05-01 13:06:31 -04:00
postmaster Further improve code for probing the availability of ARM CRC instructions. 2018-05-03 11:32:57 -04:00
regex Clean up warnings from -Wimplicit-fallthrough. 2018-05-01 19:35:08 -04:00
replication Update obsolete comments 2018-06-25 15:45:48 -04:00
rewrite Simplify view-expansion code in rewriteHandler.c. 2018-04-14 21:01:03 -04:00
snowball Avoid unnecessary use of pg_strcasecmp for already-downcased identifiers. 2018-01-26 18:25:14 -05:00
statistics Fix bogus code for extracting extended-statistics data from syscache. 2018-05-02 12:23:00 -04:00
storage Move RecoveryLockList into a hash table. 2018-06-26 18:45:45 +12:00
tcop Don't allow partitioned index on foreign-table partitions 2018-05-14 13:23:07 -04:00
tsearch Post-feature-freeze pgindent run. 2018-04-26 14:47:16 -04:00
utils Increase upper limit for vacuum_cleanup_index_scale_factor 2018-06-26 15:00:51 +03:00
.gitignore Add .gitignore entries for AIX-specific intermediate build artifacts. 2015-07-08 20:44:22 -04:00
common.mk Remove PARTIAL_LINKING build mode. 2018-03-30 17:33:04 -07:00
Makefile Rearrange makefile rules for running Gen_fmgrtab.pl. 2018-05-03 17:54:18 -04:00
nls.mk Translation updates 2018-06-25 12:37:18 +02:00