diff options
Diffstat (limited to 'db/migrate/20201111145317_add_relation_to_indexes_view.rb')
-rw-r--r-- | db/migrate/20201111145317_add_relation_to_indexes_view.rb | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/db/migrate/20201111145317_add_relation_to_indexes_view.rb b/db/migrate/20201111145317_add_relation_to_indexes_view.rb new file mode 100644 index 00000000000..318b77c1dc6 --- /dev/null +++ b/db/migrate/20201111145317_add_relation_to_indexes_view.rb @@ -0,0 +1,58 @@ +# frozen_string_literal: true + +class AddRelationToIndexesView < ActiveRecord::Migration[6.0] + DOWNTIME = false + + def up + execute(<<~SQL) + DROP VIEW postgres_indexes; + + CREATE VIEW postgres_indexes AS + SELECT (pg_namespace.nspname::text || '.'::text) || pg_class.relname::text AS identifier, + pg_index.indexrelid, + pg_namespace.nspname AS schema, + pg_class.relname AS name, + pg_indexes.tablename, + pg_index.indisunique AS "unique", + pg_index.indisvalid AS valid_index, + pg_class.relispartition AS partitioned, + pg_index.indisexclusion AS exclusion, + pg_index.indexprs IS NOT NULL as expression, + pg_index.indpred IS NOT NULL as partial, + pg_indexes.indexdef AS definition, + pg_relation_size(pg_class.oid::regclass) AS ondisk_size_bytes + FROM pg_index + JOIN pg_class ON pg_class.oid = pg_index.indexrelid + JOIN pg_namespace ON pg_class.relnamespace = pg_namespace.oid + JOIN pg_indexes ON pg_class.relname = pg_indexes.indexname + WHERE pg_namespace.nspname <> 'pg_catalog'::name + AND (pg_namespace.nspname = ANY (ARRAY["current_schema"(), 'gitlab_partitions_dynamic'::name, 'gitlab_partitions_static'::name])); + SQL + end + + def down + execute(<<~SQL) + DROP VIEW postgres_indexes; + + CREATE VIEW postgres_indexes AS + SELECT (pg_namespace.nspname::text || '.'::text) || pg_class.relname::text AS identifier, + pg_index.indexrelid, + pg_namespace.nspname AS schema, + pg_class.relname AS name, + pg_index.indisunique AS "unique", + pg_index.indisvalid AS valid_index, + pg_class.relispartition AS partitioned, + pg_index.indisexclusion AS exclusion, + pg_index.indexprs IS NOT NULL as expression, + pg_index.indpred IS NOT NULL as partial, + pg_indexes.indexdef AS definition, + pg_relation_size(pg_class.oid::regclass) AS ondisk_size_bytes + FROM pg_index + JOIN pg_class ON pg_class.oid = pg_index.indexrelid + JOIN pg_namespace ON pg_class.relnamespace = pg_namespace.oid + JOIN pg_indexes ON pg_class.relname = pg_indexes.indexname + WHERE pg_namespace.nspname <> 'pg_catalog'::name + AND (pg_namespace.nspname = ANY (ARRAY["current_schema"(), 'gitlab_partitions_dynamic'::name, 'gitlab_partitions_static'::name])); + SQL + end +end |