diff options
Diffstat (limited to 'db/migrate/20210706152139_add_index_type_to_postgres_indexes_view.rb')
-rw-r--r-- | db/migrate/20210706152139_add_index_type_to_postgres_indexes_view.rb | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/db/migrate/20210706152139_add_index_type_to_postgres_indexes_view.rb b/db/migrate/20210706152139_add_index_type_to_postgres_indexes_view.rb new file mode 100644 index 00000000000..a2a3d74cd49 --- /dev/null +++ b/db/migrate/20210706152139_add_index_type_to_postgres_indexes_view.rb @@ -0,0 +1,57 @@ +# frozen_string_literal: true + +class AddIndexTypeToPostgresIndexesView < ActiveRecord::Migration[6.1] + def up + execute(<<~SQL) + DROP VIEW IF EXISTS postgres_indexes; + + CREATE VIEW postgres_indexes AS + SELECT (pg_namespace.nspname::text || '.'::text) || i.relname::text AS identifier, + pg_index.indexrelid, + pg_namespace.nspname AS schema, + i.relname AS name, + pg_indexes.tablename, + a.amname AS type, + pg_index.indisunique AS "unique", + pg_index.indisvalid AS valid_index, + i.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(i.oid::regclass) AS ondisk_size_bytes + FROM pg_index + JOIN pg_class i ON i.oid = pg_index.indexrelid + JOIN pg_namespace ON i.relnamespace = pg_namespace.oid + JOIN pg_indexes ON i.relname = pg_indexes.indexname + JOIN pg_am a ON i.relam = a.oid + 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 IF EXISTS 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 +end |