Override TypeMapInitialize#query_conditions_for_initial_load to use faster query

Author: keithdoggett

lib/active_record/connection_adapters/cockroachdb/oid/type_map_initializer.rb

@@ -0,0 +1,26 @@
+module ActiveRecord
+  module ConnectionAdapters
+    module CockroachDB
+      module OID
+        module TypeMapInitializer
+          # override
+          # Replaces the query with a faster version that doesn't rely on the
+          # use of 'array_in(cstring,oid,integer)'::regprocedure.
+          def query_conditions_for_initial_load
+            known_type_names = @store.keys.map { |n| "'#{n}'" }
+            known_type_types = %w('r' 'e' 'd')
+            <<~SQL % [known_type_names.join(", "), known_type_types.join(", ")]
+              WHERE
+                t.typname IN (%s)
+                OR t.typtype IN (%s)
+                OR (t.typarray = 0 AND t.typcategory='A')
+                OR t.typelem != 0
+            SQL
+          end
+        end
+
+        PostgreSQL::OID::TypeMapInitializer.prepend(TypeMapInitializer)
+      end
+    end
+  end
+end

lib/active_record/connection_adapters/cockroachdb_adapter.rb

@@ -13,6 +13,7 @@
 require "active_record/connection_adapters/cockroachdb/column"
 require "active_record/connection_adapters/cockroachdb/spatial_column_info"
 require "active_record/connection_adapters/cockroachdb/setup"
+require "active_record/connection_adapters/cockroachdb/oid/type_map_initializer"
 require "active_record/connection_adapters/cockroachdb/oid/spatial"
 require "active_record/connection_adapters/cockroachdb/arel_tosql"