COMMIT PREPARED
commit a transaction that was earlier prepared for two-phase commit
English manual coverage begins with PostgreSQL 6.4. Source history and runtime observations have their own recorded version boundaries.
Reading PG 18·Select a recorded version
- anchor
- SQL-COMMIT-PREPARED
- file
- sql-commit-prepared.html
- lang
- en
- name
- COMMIT PREPARED
- purpose
- commit a transaction that was earlier prepared for two-phase commit
- purpose zh
- 提交一个先前为两阶段提交而预备的事务
- sections same as
- Unknown
- slug
- 18
- synopsis html
- COMMIT PREPARED <em class="replaceable"><code>transaction_id</code></em>
- synopsis text
- COMMIT PREPARED transaction_id
Syntax
COMMIT PREPARED transaction_idSyntax diagrams
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Definition PG 18
COMMIT PREPARED transaction_id
Description
COMMIT PREPARED commits a transaction that is in prepared state.
Parameters
transaction_idThe transaction identifier of the transaction that is to be committed.
Notes
To commit a prepared transaction, you must be either the same user that executed the transaction originally, or a superuser. But you do not have to be in the same session that executed the transaction.
This command cannot be executed inside a transaction block. The prepared transaction is committed immediately.
All currently available prepared transactions are listed in the pg_prepared_xacts system view.
Examples
Commit the transaction identified by the transaction identifier foobar:
COMMIT PREPARED 'foobar';
Compatibility
COMMIT PREPARED is a PostgreSQL extension. It is intended for use by external transaction management systems, some of which are covered by standards (such as X/Open XA), but the SQL side of those systems is not standardized.
See Also
PREPARE TRANSACTION, ROLLBACK PREPAREDCompare versions
Source references
Full definition and evidence JSON
Definition sources
center · PostgreSQL 18 · wiki-repair-20261023:cf41beb98f5bc00faa3f48aaad9b5b8a0ccada6201728a930b4016988b0f4240
Text language: en · wiki-repair-20261023:cf41beb98f5bc00faa3f48aaad9b5b8a0ccada6201728a930b4016988b0f4240