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

      PG_REWRITE

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

      PG_REWRITE records rewrite rules defined for tables and views.

      Table 1 PG_REWRITE columns

      Name

      Type

      Description

      rulename

      name

      Name of the rule

      ev_class

      oid

      Name of the table that uses the rule

      ev_attr

      smallint

      Field to which the rule applies. Currently, the value is 0, indicating the entire table.

      ev_type

      "char"

      Event type for this rule:

      • 1 = SELECT
      • 2 = UPDATE
      • 3 = INSERT
      • 4 = DELETE

      ev_enabled

      "char"

      Controls in which mode the rule fires

      • O: The rule fires in "origin" and "local" modes.
      • D: The rule is disabled.
      • R: The rule fires in "replica" mode.
      • A: The rule always fires.

      is_instead

      boolean

      Its value is true if the rule is an INSTEAD rule.

      ev_qual

      pg_node_tree

      Expression tree (in the form of a nodeToString() representation) for the rule's qualifying condition

      ev_action

      pg_node_tree

      Query tree (in the form of a nodeToString() representation) for the rule's action
      Parent topic: System Catalogs
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