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FUNCTIONS / SYSTEM INFORMATION FUNCTIONS AND OPERATORS

pg_get_multixact_members

Read PG 18 manual ↗

Returns the transaction ID and lock mode for each member of the specified multixact ID.

Signatures & examples

pg_get_multixact_members ( multixid xid ) → setof record ( xid xid, mode text )
Returns the transaction ID and lock mode for each member of the specified multixact ID. The lock modes forupd, fornokeyupd, sh, and keysh correspond to the row-level locks FOR UPDATE, FOR NO KEY UPDATE, FOR SHARE, and FOR KEY SHARE, respectively, as described in Section 13.3.2. Two additional modes are specific to multixacts: nokeyupd, used by updates that do not modify key columns, and upd, used by updates or deletes that modify key columns.
Version history 1
  1. PG 12 → 13added

Definition snapshot: 2026-09-14T13:14:25.684213+00:00@99e6866c · English manual source