A deprecated function returning the xmin value of a snapshot
This entry relates to a PostgreSQL feature which is deprecated and may be desupported in future releases.

txid_snapshot_xmin() is a deprecated system function returning the xmin value of a snapshot.

txid_snapshot_xmin() was added in PostgreSQL 8.3.


txid_snapshot_xmin ( txid_snapshot ) → bigint

This function is deprecated following the introduction of the pg_snapshot and xid8 data types in PostgreSQL 13 and is superseded by pg_snapshot_xmin().

Change history


Deprecated, System function, Transactions

See also

txid_snapshot_xmax(), txid_snapshot_xip()