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Drop notify_constraint_dropped beforehand when downgrading

pull/4570/head
Onur Tirtir 2021-01-25 17:03:42 +03:00
parent d127516dc8
commit 9e0150e9e2
1 changed files with 14 additions and 4 deletions
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18
src/backend/distributed/sql/downgrades/citus--10.0-1--9.5-1.sql
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@ -1,6 +1,20 @@
-- citus--10.0-1--9.5-1
-- this is an empty downgrade path since citus--9.5-1--10.0-1.sql is empty for now
-- In Citus 10.0, we added another internal udf (notify_constraint_dropped)
-- to be called by citus_drop_trigger. Since this script is executed when
-- downgrading Citus, we don't have notify_constraint_dropped in citus.so.
-- For this reason, we first need to downgrade citus_drop_trigger so it doesn't
-- call notify_constraint_dropped.
-- To downgrade citus_drop_trigger, we first need to have the old version of
-- citus_drop_all_shards as we renamed it in Citus 10.0.
ALTER FUNCTION pg_catalog.citus_drop_all_shards(regclass, text, text)
RENAME TO master_drop_all_shards;
#include "../udfs/citus_drop_trigger/9.5-1.sql"
-- Now we can safely drop notify_constraint_dropped as we downgraded citus_drop_trigger.
DROP FUNCTION pg_catalog.notify_constraint_dropped();
#include "../udfs/citus_finish_pg_upgrade/9.5-1.sql"
#include "../../../columnar/sql/downgrades/columnar--10.0-1--9.5-1.sql"
@ -40,8 +54,6 @@ ALTER FUNCTION pg_catalog.citus_dist_placement_cache_invalidate()
RENAME TO master_dist_placement_cache_invalidate;
ALTER FUNCTION pg_catalog.citus_dist_shard_cache_invalidate()
RENAME TO master_dist_shard_cache_invalidate;
ALTER FUNCTION pg_catalog.citus_drop_all_shards(regclass, text, text)
RENAME TO master_drop_all_shards;
#include "../udfs/citus_conninfo_cache_invalidate/9.5-1.sql"
#include "../udfs/citus_dist_local_group_cache_invalidate/9.5-1.sql"
@ -89,10 +101,8 @@ CREATE FUNCTION pg_catalog.master_create_worker_shards(table_name text, shard_co
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT;
DROP FUNCTION pg_catalog.notify_constraint_dropped();
DROP FUNCTION pg_catalog.remove_local_tables_from_metadata();
#include "../udfs/citus_drop_trigger/9.5-1.sql"
#include "../udfs/citus_total_relation_size/7.0-1.sql"
#include "../udfs/upgrade_to_reference_table/8.0-1.sql"
#include "../udfs/undistribute_table/9.5-1.sql"