mirror of https://github.com/citusdata/citus.git
update migration script
Simon Kelly
parent
6fffee7616
commit
50fa4af7e4
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@ -5,6 +5,7 @@
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#include "udfs/create_citus_local_table/9.5-1.sql"
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#include "udfs/citus_drop_trigger/9.5-1.sql"
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#include "udfs/worker_record_sequence_dependency/9.5-1.sql"
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#include "udfs/citus_finish_pg_upgrade/9.5-1.sql"
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SET search_path = 'pg_catalog';
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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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-- DELETE/INSERT to avoid primary key violations
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WITH old_records AS (
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DELETE FROM
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citus.pg_dist_object
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RETURNING
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type,
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object_names,
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object_args,
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distribution_argument_index,
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colocationid
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)
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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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old_records naming,
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pg_get_object_address(naming.type, naming.object_names, naming.object_args) address;
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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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