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make enable/disable trigger idempotent

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This commit is contained in:
Gonzalo Riestra
2019-03-08 08:43:22 +01:00
parent ab6720ad32
commit e3138cd56a
1 changed files with 3 additions and 2 deletions
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scripts-available/CDB_GhostTables.sql
+3 -2
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@@ -91,9 +91,10 @@ CREATE OR REPLACE FUNCTION CDB_EnableGhostTablesTrigger()
RETURNS void RETURNS void
AS $$ AS $$
BEGIN BEGIN
DROP EVENT TRIGGER IF EXISTS link_ghost_tables;
CREATE EVENT TRIGGER link_ghost_tables CREATE EVENT TRIGGER link_ghost_tables
ON ddl_command_end ON ddl_command_end
WHEN TAG IN ('CREATE TABLE', 'SELECT INTO', 'DROP TABLE', 'ALTER TABLE', 'CREATE TRIGGER', 'DROP TRIGGER', 'CREATE VIEW', 'DROP VIEW', 'ALTER VIEW') WHEN TAG IN ('CREATE TABLE', 'SELECT INTO', 'DROP TABLE', 'ALTER TABLE', 'CREATE TRIGGER', 'DROP TRIGGER')
EXECUTE PROCEDURE CDB_SaveDDLTransaction(); EXECUTE PROCEDURE CDB_SaveDDLTransaction();
END; END;
$$ LANGUAGE plpgsql VOLATILE PARALLEL UNSAFE; $$ LANGUAGE plpgsql VOLATILE PARALLEL UNSAFE;
@@ -103,6 +104,6 @@ CREATE OR REPLACE FUNCTION CDB_DisableGhostTablesTrigger()
RETURNS void RETURNS void
AS $$ AS $$
BEGIN BEGIN
DROP EVENT TRIGGER link_ghost_tables; DROP EVENT TRIGGER IF EXISTS link_ghost_tables;
END; END;
$$ LANGUAGE plpgsql VOLATILE PARALLEL UNSAFE; $$ LANGUAGE plpgsql VOLATILE PARALLEL UNSAFE;