Wiki / Configuration Parameters
transaction_buffers
Specifies the amount of shared memory to use to cache the contents of pg_xact (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.
Reading PG 18·Select a recorded version
- 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
- transaction_buffers
- short desc
- Sets the size of the dedicated buffer pool used for the transaction status cache.
- source
- pg-settings-source-snapshot
- unit
- 8kB
- vartype
- integer
Definition PG 18
Specifies the amount of shared memory to use to cache the contents of pg_xact (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-20261023:2e95c9eac95705d1cb0f7758c8c7b5fef67418ef1b1ac696c1231c192e085279
Text language: en · wiki-repair-20261023:2e95c9eac95705d1cb0f7758c8c7b5fef67418ef1b1ac696c1231c192e085279