Remove schema_triggers
This commit is contained in:
Alejandro Martínez
parent
bce61c1e43
commit
ef376fd243
@ -13,9 +13,6 @@ Dependencies
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* PostgreSQL 9.3+ (with plpythonu extension and xml support)
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* [PostGIS extension](http://postgis.net)
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* [Schema triggers extension]
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(https://bitbucket.org/malloclabs/pg_schema_triggers)
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(or [fork](https://github.com/CartoDB/pg_schema_triggers))
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Install
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-------
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@ -31,10 +28,6 @@ Test installation
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make installcheck
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```
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NOTE: if ``test_ddl_triggers`` fails it's likely due to an incomplete
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installation of schema_triggers: you need to add ``schema_triggers.so``
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to the ``shared_preload_libraries`` setting in postgresql.conf !
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NOTE: you need to run the installcheck as a superuser, use PGUSER
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env variable if needed, like: PGUSER=postgres make installcheck
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@ -47,7 +40,6 @@ In a database that needs to be turned into a "cartodb" user database, run:
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```sql
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CREATE EXTENSION postgis;
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CREATE EXTENSION schema_triggers;
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CREATE EXTENSION cartodb;
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```
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@ -63,7 +55,6 @@ be in the "cartodb" schema.
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```sql
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CREATE EXTENSION postgis FROM unpackaged;
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CREATE EXTENSION schema_triggers;
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CREATE EXTENSION cartodb FROM unpackaged;
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```
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@ -3,4 +3,4 @@ comment = 'Turn a database into a cartodb user database.'
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superuser = true
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relocatable = false
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schema = cartodb
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requires = 'plpythonu, schema_triggers, postgis'
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requires = 'plpythonu, postgis'
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@ -1,5 +1,4 @@
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CREATE EXTENSION postgis;
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CREATE EXTENSION schema_triggers;
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CREATE EXTENSION plpythonu;
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CREATE EXTENSION cartodb;
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CREATE FUNCTION public.cdb_invalidate_varnish(table_name text)
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@ -1,214 +0,0 @@
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-- Table creation
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-- {
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CREATE OR REPLACE FUNCTION cartodb.cdb_handle_create_table ()
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RETURNS event_trigger SECURITY DEFINER LANGUAGE plpgsql AS $$
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DECLARE
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event_info RECORD;
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rel RECORD;
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newtable REGCLASS;
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BEGIN
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event_info := schema_triggers.get_relation_create_eventinfo();
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-- We're only interested in real relations
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IF (event_info.new).relkind != 'r' THEN RETURN; END IF;
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SELECT c.relname, c.relnamespace, c.relkind, n.nspname
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FROM pg_class c
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JOIN pg_namespace n
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ON c.relnamespace = n.oid
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WHERE c.oid = event_info.relation
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INTO rel;
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RAISE DEBUG 'Relation % of kind % created in table % namespace % (oid %)',
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event_info.relation, rel.relkind, rel.relname, rel.nspname, rel.relnamespace;
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-- We don't want to react to alters triggered by superuser,
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IF current_setting('is_superuser') = 'on' THEN
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RAISE DEBUG 'no ddl trigger for superuser';
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RETURN;
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END IF;
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PERFORM cartodb.cdb_disable_ddl_hooks();
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-- CDB_CartodbfyTable must not create tables, or infinite loop will happen
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newtable := cartodb.CDB_CartodbfyTable(rel.nspname, event_info.relation);
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PERFORM cartodb.cdb_enable_ddl_hooks();
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RAISE DEBUG 'Inserting into cartodb.CDB_TableMetadata';
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-- Add entry to CDB_TableMetadata (should CartodbfyTable do this?)
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INSERT INTO cartodb.CDB_TableMetadata(tabname, updated_at)
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VALUES (newtable, now());
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END; $$;
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-- }
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-- Table drop
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-- {
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CREATE OR REPLACE FUNCTION cartodb.cdb_handle_drop_table ()
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RETURNS event_trigger SECURITY DEFINER LANGUAGE plpgsql AS $$
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DECLARE
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event_info RECORD;
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BEGIN
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event_info := schema_triggers.get_relation_drop_eventinfo();
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-- We're only interested in real relations
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IF (event_info.old).relkind != 'r' THEN RETURN; END IF;
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RAISE DEBUG 'Relation % of kind % dropped from namespace oid %',
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event_info.old_relation_oid, (event_info.old).relkind, (event_info.old).relnamespace;
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-- delete record from CDB_TableMetadata (should invalidate varnish)
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DELETE FROM cartodb.CDB_TableMetadata WHERE tabname = event_info.old_relation_oid;
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END; $$;
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-- }
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-- Column alter
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-- {
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CREATE OR REPLACE FUNCTION cartodb.cdb_handle_alter_column ()
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RETURNS event_trigger SECURITY DEFINER LANGUAGE plpgsql AS $$
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DECLARE
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event_info RECORD;
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rel RECORD;
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newtable REGCLASS;
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BEGIN
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event_info := schema_triggers.get_column_alter_eventinfo();
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SELECT c.relname, c.relnamespace, c.relkind, n.nspname
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FROM pg_class c
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JOIN pg_namespace n
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ON c.relnamespace = n.oid
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WHERE c.oid = event_info.relation
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INTO rel;
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RAISE DEBUG 'Column % altered by % (superuser? %) in relation % of kind %',
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(event_info.old).attname, current_user, current_setting('is_superuser'), rel.relname, rel.relkind;
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-- We're only interested in real relations
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IF rel.relkind != 'r' THEN RETURN; END IF;
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-- We don't want to react to alters triggered by superuser,
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IF current_setting('is_superuser') = 'on' THEN
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RAISE DEBUG 'no ddl trigger for superuser';
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RETURN;
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END IF;
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PERFORM cartodb.cdb_disable_ddl_hooks();
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newtable := cartodb.CDB_CartodbfyTable(rel.nspname, event_info.relation);
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PERFORM cartodb.cdb_enable_ddl_hooks();
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-- update CDB_TableMetadata.updated_at (should invalidate varnish)
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UPDATE cartodb.CDB_TableMetadata SET updated_at = NOW(), tabname = newtable
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WHERE tabname = event_info.relation;
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END; $$;
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-- }
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-- Column drop
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-- {
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CREATE OR REPLACE FUNCTION cartodb.cdb_handle_drop_column ()
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RETURNS event_trigger SECURITY DEFINER LANGUAGE plpgsql AS $$
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DECLARE
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event_info RECORD;
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rel RECORD;
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newtable REGCLASS;
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BEGIN
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event_info := schema_triggers.get_column_drop_eventinfo();
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SELECT c.relname, c.relnamespace, c.relkind, n.nspname
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FROM pg_class c
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JOIN pg_namespace n
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ON c.relnamespace = n.oid
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WHERE c.oid = event_info.relation
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INTO rel;
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RAISE DEBUG 'Column % drop by % (superuser? %) in relation % of kind %',
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(event_info.old).attname, current_user, current_setting('is_superuser'), rel.relname, rel.relkind;
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-- We're only interested in real relations
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IF rel.relkind != 'r' THEN RETURN; END IF;
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-- We don't want to react to drops triggered by superuser,
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IF current_setting('is_superuser') = 'on' THEN
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RAISE DEBUG 'no ddl trigger for superuser';
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RETURN;
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END IF;
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PERFORM cartodb.cdb_disable_ddl_hooks();
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newtable := cartodb.CDB_CartodbfyTable(rel.nspname, event_info.relation);
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PERFORM cartodb.cdb_enable_ddl_hooks();
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-- update CDB_TableMetadata.updated_at (should invalidate varnish)
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UPDATE cartodb.CDB_TableMetadata SET updated_at = NOW(), tabname = newtable
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WHERE tabname = event_info.relation;
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END; $$;
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-- }
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-- Column add
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-- {
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CREATE OR REPLACE FUNCTION cartodb.cdb_handle_add_column ()
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RETURNS event_trigger SECURITY DEFINER LANGUAGE plpgsql AS $$
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DECLARE
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event_info RECORD;
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rel RECORD;
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BEGIN
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event_info := schema_triggers.get_column_add_eventinfo();
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SELECT c.relname, c.relnamespace, c.relkind, n.nspname
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FROM pg_class c
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JOIN pg_namespace n
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ON c.relnamespace = n.oid
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WHERE c.oid = event_info.relation
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INTO rel;
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RAISE DEBUG 'Column % added by % (superuser? %) in relation % of kind %',
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(event_info.new).attname, current_user, current_setting('is_superuser'), rel.relname, rel.relkind;
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-- We're only interested in real relations
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IF rel.relkind != 'r' THEN RETURN; END IF;
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-- We don't want to react to drops triggered by superuser,
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IF current_setting('is_superuser') = 'on' THEN
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RAISE DEBUG 'no ddl trigger for superuser';
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RETURN;
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END IF;
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-- update CDB_TableMetadata.updated_at (should invalidate varnish)
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UPDATE cartodb.CDB_TableMetadata SET updated_at = NOW()
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WHERE tabname = event_info.relation;
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END; $$;
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-- }
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CREATE OR REPLACE FUNCTION cartodb.cdb_disable_ddl_hooks() returns void AS $$
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DROP EVENT TRIGGER IF EXISTS cdb_on_relation_create;
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DROP EVENT TRIGGER IF EXISTS cdb_on_relation_drop;
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DROP EVENT TRIGGER IF EXISTS cdb_on_alter_column;
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DROP EVENT TRIGGER IF EXISTS cdb_on_drop_column;
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DROP EVENT TRIGGER IF EXISTS cdb_on_add_column;
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$$ LANGUAGE sql;
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CREATE OR REPLACE FUNCTION cartodb.cdb_enable_ddl_hooks() returns void AS $$
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SELECT cartodb.cdb_disable_ddl_hooks();
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CREATE EVENT TRIGGER cdb_on_relation_create
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ON "relation_create" EXECUTE PROCEDURE cartodb.cdb_handle_create_table();
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CREATE EVENT TRIGGER cdb_on_relation_drop
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ON "relation_drop" EXECUTE PROCEDURE cartodb.cdb_handle_drop_table();
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CREATE EVENT TRIGGER cdb_on_alter_column
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ON "column_alter" EXECUTE PROCEDURE cartodb.cdb_handle_alter_column();
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CREATE EVENT TRIGGER cdb_on_drop_column
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ON "column_drop" EXECUTE PROCEDURE cartodb.cdb_handle_drop_column();
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CREATE EVENT TRIGGER cdb_on_add_column
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ON "column_add" EXECUTE PROCEDURE cartodb.cdb_handle_add_column();
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$$ LANGUAGE sql;
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-- Do not enable hooks by default
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--SELECT cartodb.cdb_enable_ddl_hooks();
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@ -1,5 +1,4 @@
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CREATE EXTENSION postgis;
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CREATE EXTENSION schema_triggers;
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CREATE EXTENSION plpythonu;
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CREATE EXTENSION cartodb;
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CREATE FUNCTION public.cdb_invalidate_varnish(table_name text)
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