Rails 8.0 Support, Postgres fixes

Gemfile

@@ -105,5 +105,6 @@ group :rails do
     gem 'minitest-rg', require: nil
     gem 'minitest-rails', require: nil
     gem 'benchmark-ips', require: nil
+    gem 'rdoc', '~> 7', require: false
   end
 end

activerecord-jdbc-adapter.gemspec

@@ -41,7 +41,7 @@ Gem::Specification.new do |gem|
   gem.executables = gem.files.grep(%r{^bin/}).map { |f| File.basename(f) }
   gem.test_files = gem.files.grep(%r{^test/})
 
-  gem.add_dependency "activerecord", "~> 8.0"
+  gem.add_dependency "activerecord", "~> 8.0.0"
 
   #gem.add_development_dependency 'test-unit', '2.5.4'
   #gem.add_development_dependency 'test-unit-context', '>= 0.3.0'

lib/arjdbc/abstract/database_statements.rb

@@ -9,21 +9,6 @@ module DatabaseStatements
 
       NO_BINDS = [].freeze
 
-      unless method_defined?(:mark_transaction_written_if_write)
-        def mark_transaction_written_if_write(sql)
-          if write_query?(sql)
-            ensure_writes_are_allowed(sql)
-            mark_transaction_written
-          end
-        end
-      end
-
-      unless method_defined?(:check_if_write_query)
-        def check_if_write_query(sql)
-          ensure_writes_are_allowed(sql) if write_query?(sql)
-        end
-      end
-
       def exec_insert(sql, name = nil, binds = NO_BINDS, pk = nil, sequence_name = nil, returning: nil)
         if preventing_writes?
           raise ActiveRecord::ReadOnlyError, "Write query attempted while in readonly mode: #{sql}"

lib/arjdbc/postgresql/schema_statements.rb

@@ -6,23 +6,6 @@ module SchemaStatements
       ForeignKeyDefinition = ActiveRecord::ConnectionAdapters::ForeignKeyDefinition
       Utils = ActiveRecord::ConnectionAdapters::PostgreSQL::Utils
 
-      def decode_string_array(value)
-        return value if value.is_a?(Array)
-        _arjdbc_array_parser.parse_pg_array(value)
-      end
-
-      private
-
-      def _arjdbc_array_parser
-        @_arjdbc_array_parser ||= begin
-          obj = Object.new
-          obj.extend(ActiveRecord::ConnectionAdapters::PostgreSQL::ArrayParser)
-          obj
-        end
-      end
-
-      public
-
       def foreign_keys(table_name)
         scope = quoted_scope(table_name)
         fk_info = internal_exec_query(<<~SQL, "SCHEMA", allow_retry: true, materialize_transactions: false)

test/rails/excludes/postgresql/ActiveRecord/ConnectionAdapters/ReaperTest.rb

@@ -1,2 +1,3 @@
 exclude :test_some_time, 'intermittent failures, leaks thread, fires at high frequency'
 exclude :test_connection_pool_starts_reaper, 'intermittent failures, leaks thread, fires at high frequency'
+exclude :test_reaper_works_after_pool_discard, 'deadlocks under JDBC due to high frequency discard'