↑↓ select↵ open⌫ change scopeOpen full search

PG.CENTER connects PostgreSQL documentation, reference, and ecosystem knowledge. Maintained by Pigsty.

Wiki / Configuration Parameters

wal_segment_size

Reports the size of write ahead log segments. The default value is 16MB. See Section 28.5 for more information.

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

Reading PG 18·Select a recorded version

boot val
16777216
category
Preset Options
context
internal
documented
true
enumvals
Unknown
extra desc
Unknown
lang
en
max val
1073741824
metadata version
18
min val
1048576
name
wal_segment_size
short desc
Shows the size of write ahead log segments.
source
pg-settings-source-snapshot
unit
B
vartype
integer

Definition PG 18

Reports the size of write ahead log segments. The default value is 16MB. See Section 28.5 for more information.

Compare versions

Source references

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:2c6fa4939f0f3846769dcdb4095bccca006ac16ed3b10838c8de1e598bd1f382

Text language: en · wiki-repair-20261023:2c6fa4939f0f3846769dcdb4095bccca006ac16ed3b10838c8de1e598bd1f382