Postgresql 中文操作指南
53.45. pg_rewrite #
目录 pg_rewrite 存储表和视图的重写规则。
The catalog pg_rewrite stores rewrite rules for tables and views.
Table 53.45. pg_rewrite Columns
Table 53.45. pg_rewrite Columns
Column Type Description |
oid oid Row identifier |
rulename name Rule name |
ev_class oid (references pg_class.oid) The table this rule is for |
ev_type char Event type that the rule is for: 1 = SELECT, 2 = UPDATE, 3 = INSERT, 4 = DELETE |
ev_enabled char Controls in which session_replication_role modes the rule fires. O = rule fires in “origin” and “local” modes, D = rule is disabled, R = rule fires in “replica” mode, A = rule fires always. |
is_instead bool 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 |