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commit_timestamp_buffers

Specifies the amount of memory to use to cache the contents of pg_commit_ts (see Table 66.1). If this value is specified without units, it is taken as blocks, that is BLCKSZ bytes, typically 8kB. The default value is 0, which requests shared_buffers/512 up to 1024 blocks, but not fewer than 16 blocks. This parameter can only be set at server start.

English manual coverage begins with PostgreSQL 7.4. Source history and runtime observations have their own recorded version boundaries.

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boot val
0
category
Resource Usage / Memory
context
postmaster
documented
true
enumvals
Unknown
extra desc
0 means use a fraction of "shared_buffers".
lang
en
max val
131072
metadata version
18
min val
0
name
commit_timestamp_buffers
short desc
Sets the size of the dedicated buffer pool used for the commit timestamp cache.
source
pg-settings-source-snapshot
unit
8kB
vartype
integer

Definition PG 18

Specifies the amount of memory to use to cache the contents of pg_commit_ts (see Table 66.1). If this value is specified without units, it is taken as blocks, that is BLCKSZ bytes, typically 8kB. The default value is 0, which requests shared_buffers/512 up to 1024 blocks, but not fewer than 16 blocks. This parameter can only be set at server start.

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center · PostgreSQL 18 · wiki-repair-20261023:487e34b0c6e62dd5c7c66bad29d714c7fef82e6633f9638245595c77b4a542df

Text language: en · wiki-repair-20261023:487e34b0c6e62dd5c7c66bad29d714c7fef82e6633f9638245595c77b4a542df