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      Help Center/ GaussDB(DWS)/ Standard Data Warehouse (8.1.3.x)/ GaussDB(DWS) System Catalogs and Views/ System Views/ PGXC_VARIABLE_INFO

      PGXC_VARIABLE_INFO

      Updated on 2024-12-19 GMT+08:00
      View PDF

      PGXC_VARIABLE_INFO displays information about transaction IDs and OIDs of all nodes in a cluster.

      Table 1 PGXC_VARIABLE_INFO columns

      Name

      Type

      Description

      node_name

      text

      Node name

      nextOid

      oid

      OID generated next time for a node

      nextXid

      xid

      Transaction ID generated next time for a node

      oldestXid

      xid

      Oldest transaction ID for a node

      xidVacLimit

      xid

      Critical point that triggers forcible autovacuum

      oldestXidDB

      oid

      OID of the database that has the minimum datafrozenxid on a node

      lastExtendCSNLogpage

      integer

      Number of the last extended csnlog page

      startExtendCSNLogpage

      integer

      Number of the page from which the csnlog extending starts

      nextCommitSeqNo

      integer

      CSN generated next time for a node

      latestCompletedXid

      xid

      Latest transaction ID on a node after the transaction commission or rollback

      startupMaxXid

      xid

      Last transaction ID before a node is powered off
      Parent topic: System Views
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