mirror of https://github.com/citusdata/citus.git
Fix PG upgrade scripts for 10.0
Marco Slot
Nils Dijk
parent
d9514fa697
commit
826ac1b099
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@ -0,0 +1,9 @@
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--
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-- 10.0-3--10.0-4 was added later as a patch to fix a bug in our PG upgrade functions
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--
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-- Users who took the 9.5-2--10.0-1 upgrade path already have the fix, but users
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-- who took the 9.5-1--10.0-1 upgrade path do not. Hence, we repeat the CREATE OR
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-- REPLACE from the 9.5-2 definition for citus_prepare_pg_upgrade.
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#include "udfs/citus_prepare_pg_upgrade/9.5-2.sql"
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#include "udfs/citus_finish_pg_upgrade/10.0-4.sql"
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--
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-- 10.0-3--10.0-4 was added later as a patch to fix a bug in our PG upgrade functions
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--
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-- The upgrade fixes a bug in citus_(prepare|finish)_pg_upgrade. Given the old versions of
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-- these functions contain a bug it is better to _not_ restore the old version and keep
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-- the patched version of the function.
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--
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-- This is inline with the downgrade scripts for earlier versions of this patch
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--
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CREATE OR REPLACE FUNCTION pg_catalog.citus_finish_pg_upgrade()
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RETURNS void
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LANGUAGE plpgsql
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SET search_path = pg_catalog
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AS $cppu$
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DECLARE
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table_name regclass;
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command text;
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trigger_name text;
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BEGIN
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--
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-- restore citus catalog tables
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--
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INSERT INTO pg_catalog.pg_dist_partition SELECT * FROM public.pg_dist_partition;
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INSERT INTO pg_catalog.pg_dist_shard SELECT * FROM public.pg_dist_shard;
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INSERT INTO pg_catalog.pg_dist_placement SELECT * FROM public.pg_dist_placement;
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INSERT INTO pg_catalog.pg_dist_node_metadata SELECT * FROM public.pg_dist_node_metadata;
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INSERT INTO pg_catalog.pg_dist_node SELECT * FROM public.pg_dist_node;
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INSERT INTO pg_catalog.pg_dist_local_group SELECT * FROM public.pg_dist_local_group;
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INSERT INTO pg_catalog.pg_dist_transaction SELECT * FROM public.pg_dist_transaction;
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INSERT INTO pg_catalog.pg_dist_colocation SELECT * FROM public.pg_dist_colocation;
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-- enterprise catalog tables
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INSERT INTO pg_catalog.pg_dist_authinfo SELECT * FROM public.pg_dist_authinfo;
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INSERT INTO pg_catalog.pg_dist_poolinfo SELECT * FROM public.pg_dist_poolinfo;
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ALTER TABLE pg_catalog.pg_dist_rebalance_strategy DISABLE TRIGGER pg_dist_rebalance_strategy_enterprise_check_trigger;
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INSERT INTO pg_catalog.pg_dist_rebalance_strategy SELECT
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name,
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default_strategy,
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shard_cost_function::regprocedure::regproc,
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node_capacity_function::regprocedure::regproc,
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shard_allowed_on_node_function::regprocedure::regproc,
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default_threshold,
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minimum_threshold
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FROM public.pg_dist_rebalance_strategy;
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ALTER TABLE pg_catalog.pg_dist_rebalance_strategy ENABLE TRIGGER pg_dist_rebalance_strategy_enterprise_check_trigger;
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--
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-- drop backup tables
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--
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DROP TABLE public.pg_dist_authinfo;
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DROP TABLE public.pg_dist_colocation;
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DROP TABLE public.pg_dist_local_group;
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DROP TABLE public.pg_dist_node;
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DROP TABLE public.pg_dist_node_metadata;
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DROP TABLE public.pg_dist_partition;
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DROP TABLE public.pg_dist_placement;
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DROP TABLE public.pg_dist_poolinfo;
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DROP TABLE public.pg_dist_shard;
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DROP TABLE public.pg_dist_transaction;
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DROP TABLE public.pg_dist_rebalance_strategy;
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--
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-- reset sequences
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--
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PERFORM setval('pg_catalog.pg_dist_shardid_seq', (SELECT MAX(shardid)+1 AS max_shard_id FROM pg_dist_shard), false);
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PERFORM setval('pg_catalog.pg_dist_placement_placementid_seq', (SELECT MAX(placementid)+1 AS max_placement_id FROM pg_dist_placement), false);
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PERFORM setval('pg_catalog.pg_dist_groupid_seq', (SELECT MAX(groupid)+1 AS max_group_id FROM pg_dist_node), false);
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PERFORM setval('pg_catalog.pg_dist_node_nodeid_seq', (SELECT MAX(nodeid)+1 AS max_node_id FROM pg_dist_node), false);
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PERFORM setval('pg_catalog.pg_dist_colocationid_seq', (SELECT MAX(colocationid)+1 AS max_colocation_id FROM pg_dist_colocation), false);
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--
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-- register triggers
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--
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FOR table_name IN SELECT logicalrelid FROM pg_catalog.pg_dist_partition
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LOOP
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trigger_name := 'truncate_trigger_' || table_name::oid;
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command := 'create trigger ' || trigger_name || ' after truncate on ' || table_name || ' execute procedure pg_catalog.citus_truncate_trigger()';
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EXECUTE command;
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command := 'update pg_trigger set tgisinternal = true where tgname = ' || quote_literal(trigger_name);
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EXECUTE command;
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END LOOP;
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--
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-- set dependencies
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--
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INSERT INTO pg_depend
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SELECT
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'pg_class'::regclass::oid as classid,
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p.logicalrelid::regclass::oid as objid,
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0 as objsubid,
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'pg_extension'::regclass::oid as refclassid,
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(select oid from pg_extension where extname = 'citus') as refobjid,
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0 as refobjsubid ,
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'n' as deptype
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FROM pg_catalog.pg_dist_partition p;
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-- restore pg_dist_object from the stable identifiers
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TRUNCATE citus.pg_dist_object;
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INSERT INTO citus.pg_dist_object (classid, objid, objsubid, distribution_argument_index, colocationid)
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SELECT
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address.classid,
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address.objid,
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address.objsubid,
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naming.distribution_argument_index,
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naming.colocationid
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FROM
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public.pg_dist_object naming,
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pg_catalog.pg_get_object_address(naming.type, naming.object_names, naming.object_args) address;
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DROP TABLE public.pg_dist_object;
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PERFORM citus_internal.columnar_ensure_objects_exist();
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END;
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$cppu$;
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COMMENT ON FUNCTION pg_catalog.citus_finish_pg_upgrade()
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IS 'perform tasks to restore citus settings from a location that has been prepared before pg_upgrade';
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@ -594,6 +594,23 @@ SELECT * FROM print_extension_changes();
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| function citus_get_active_worker_nodes()
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(1 row)
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-- Test downgrade to 10.0-3 from 10.0-4
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ALTER EXTENSION citus UPDATE TO '10.0-4';
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ALTER EXTENSION citus UPDATE TO '10.0-3';
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-- Should be empty result, even though the downgrade doesn't undo the upgrade, the
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-- function signature doesn't change, which is reflected here.
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SELECT * FROM print_extension_changes();
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previous_object | current_object
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---------------------------------------------------------------------
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(0 rows)
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-- Snapshot of state at 10.0-4
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ALTER EXTENSION citus UPDATE TO '10.0-4';
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SELECT * FROM print_extension_changes();
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previous_object | current_object
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---------------------------------------------------------------------
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(0 rows)
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DROP TABLE prev_objects, extension_diff;
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-- show running version
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SHOW citus.version;
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@ -590,6 +590,23 @@ SELECT * FROM print_extension_changes();
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| function citus_get_active_worker_nodes()
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(1 row)
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-- Test downgrade to 10.0-3 from 10.0-4
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ALTER EXTENSION citus UPDATE TO '10.0-4';
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ALTER EXTENSION citus UPDATE TO '10.0-3';
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-- Should be empty result, even though the downgrade doesn't undo the upgrade, the
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-- function signature doesn't change, which is reflected here.
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SELECT * FROM print_extension_changes();
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previous_object | current_object
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---------------------------------------------------------------------
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(0 rows)
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-- Snapshot of state at 10.0-4
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ALTER EXTENSION citus UPDATE TO '10.0-4';
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SELECT * FROM print_extension_changes();
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previous_object | current_object
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---------------------------------------------------------------------
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(0 rows)
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DROP TABLE prev_objects, extension_diff;
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-- show running version
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SHOW citus.version;
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@ -246,6 +246,17 @@ SELECT * FROM print_extension_changes();
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ALTER EXTENSION citus UPDATE TO '10.0-3';
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SELECT * FROM print_extension_changes();
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-- Test downgrade to 10.0-3 from 10.0-4
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ALTER EXTENSION citus UPDATE TO '10.0-4';
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ALTER EXTENSION citus UPDATE TO '10.0-3';
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-- Should be empty result, even though the downgrade doesn't undo the upgrade, the
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-- function signature doesn't change, which is reflected here.
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SELECT * FROM print_extension_changes();
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-- Snapshot of state at 10.0-4
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ALTER EXTENSION citus UPDATE TO '10.0-4';
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SELECT * FROM print_extension_changes();
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DROP TABLE prev_objects, extension_diff;
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-- show running version
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