supports_json?

• Class methods (9)
• create_unlogged_tables (>= v6.0.0)
• database_exists? (>= v6.0.0)
• datetime_type (>= v7.0.0)
• dbconsole (>= v7.1.3.2)
• initialize_type_map (>= v7.0.0)
• native_database_types (>= v7.0.0)
• new
• new_client (>= v6.1.3.1)
• visitor_for (<= v3.1.0)
• Instance methods (196)
• active?
• active_threadsafe? (<= v4.1.8)
• adapter_name (<= v4.1.8)
• add_column (<= v3.2.13)
• add_enum_value (>= v7.1.3.2)
• add_oid (<= v4.1.8)
• add_order_by_for_associatio... (<= v2.3.8)
• add_pg_decoders
• add_pg_encoders
• arel_visitor
• begin_db_transaction (<= v3.2.13)
• build_insert_sql (>= v6.0.0)
• build_statement_pool (>= v6.0.0)
• can_perform_case_insensitiv...
• cast_to_time (<= v1.2.6)
• change_column (<= v3.2.13)
• change_column_default (<= v3.2.13)
• change_column_null (<= v3.2.13)
• check_version (>= v6.0.0)
• clear_cache!
• client_min_messages (<= v3.2.13)
• client_min_messages= (<= v3.2.13)
• column_definitions
• column_name_for_operation
• columns (<= v3.2.13)
• commit_db_transaction (<= v3.2.13)
• configure_connection
• connect
• construct_coder
• create (<= v3.0.9)
• create_database (<= v3.2.13)
• create_enum (>= v7.0.0)
• create_savepoint (<= v3.2.13)
• create_table_definition
• current_database (<= v3.2.13)
• current_schema (<= v3.2.13)
• default_index_type? (>= v5.1.7)
• default_sequence_name (<= v3.2.13)
• default_value (<= v1.2.6)
• disable_extension
• disable_referential_integrity (<= v3.2.13)
• discard! (>= v5.2.3)
• disconnect!
• distinct (<= v3.2.13)
• drop_database (<= v3.2.13)
• drop_enum (>= v7.1.3.2)
• enable_extension
• encoding (<= v3.2.13)
• enum_types (>= v7.0.0)
• escape_bytea (<= v3.2.13)
• exec_cache
• exec_delete (<= v3.2.13)
• exec_no_cache
• exec_query (<= v3.2.13)
• exec_update (<= v3.2.13)
• execute (<= v3.2.13)
• execute_and_clear
• explain (<= v3.2.13)
• extension_available? (>= v6.0.0)
• extension_enabled?
• extensions
• extract_default_function
• extract_limit
• extract_pg_identifier_from_... (<= v4.1.8)
• extract_schema_and_table (<= v3.1.0)
• extract_table_ref_from_inse...
• extract_value_from_default
• get_advisory_lock
• get_database_version (>= v6.0.0)
• get_oid_type
• has_default_function?
• index_algorithms
• indexes (<= v3.2.13)
• index_name_length (>= v2.3.8)
• initialize_type_map
• insert (<= v3.0.9)
• insert_sql (<= v3.2.13)
• in_transaction?
• is_cached_plan_failure?
• last_insert_id (<= v4.2.9)
• last_insert_id_result
• last_insert_id_value (<= v4.2.9)
• load_additional_types
• load_types_queries (>= v7.0.0)
• lookup_cast_type
• max_identifier_length (>= v5.1.7)
• migration_keys (<= v4.2.9)
• native_database_types
• outside_transaction? (<= v3.2.13)
• pk_and_sequence_for (<= v3.2.13)
• postgresql_version
• prepare_column_options (<= v4.2.9)
• prepare_statement
• primary_key (<= v3.2.13)
• query (<= v3.2.13)
• quote (<= v3.2.13)
• quote_column_name (<= v3.2.13)
• quoted_date (<= v3.2.13)
• quote_string (<= v3.2.13)
• quote_table_name (<= v3.2.13)
• reconfigure_connection_time... (>= v7.1.3.2)
• reconnect (>= v7.1.3.2)
• reconnect!
• recreate_database (<= v3.2.13)
• release_advisory_lock
• release_savepoint (<= v3.2.13)
• reload_type_map (>= v4.0.2)
• remove_index (<= v2.2.1)
• remove_index! (<= v3.2.13)
• rename_column (<= v3.2.13)
• rename_enum (>= v7.1.3.2)
• rename_enum_value (>= v7.1.3.2)
• rename_index (<= v3.2.13)
• rename_table (<= v3.2.13)
• reset!
• reset_pk_sequence! (<= v3.2.13)
• result_as_array (<= v3.2.13)
• retryable_query_error? (>= v7.1.3.2)
• return_value_after_insert? (>= v7.1.3.2)
• rollback_db_transaction (<= v3.2.13)
• rollback_to_savepoint (<= v3.2.13)
• schema_creation
• schema_exists? (<= v3.2.13)
• schema_search_path (<= v3.2.13)
• schema_search_path= (<= v3.2.13)
• select (<= v4.1.8)
• select_raw (<= v4.0.2)
• select_rows (<= v3.2.13)
• serial_sequence (<= v3.2.13)
• session_auth=
• set_standard_conforming_str...
• sql_for_insert (<= v3.2.13)
• sql_key
• substitute_at (<= v3.2.13)
• supports_advisory_locks?
• supports_bulk_alter? (>= v5.2.3)
• supports_check_constraints? (>= v6.1.3.1)
• supports_comments?
• supports_common_table_expre... (>= v6.1.3.1)
• supports_datetime_with_prec...
• supports_ddl_transactions?
• supports_deferrable_constra... (>= v7.0.0)
• supports_disable_referentia... (<= v3.2.13)
• supports_exclusion_constrai... (>= v7.1.3.2)
• supports_explain?
• supports_expression_index?
• supports_extensions?
• supports_foreign_keys?
• supports_foreign_tables? (>= v5.2.3)
• supports_identity_columns? (>= v7.1.3.2)
• supports_index_include? (>= v7.1.3.2)
• supports_index_sort_order?
• supports_insert_conflict_ta... (>= v6.0.0)
• supports_insert_on_conflict? (>= v6.0.0)
• supports_insert_on_duplicat... (>= v6.0.0)
• supports_insert_on_duplicat... (>= v6.0.0)
• supports_insert_returning? (>= v6.0.0)
• supports_insert_with_return... (<= v4.1.8)
• supports_json?
• supports_lazy_transactions? (>= v6.0.0)
• supports_materialized_views?
• supports_migrations?
• supports_nulls_not_distinct? (>= v7.1.3.2)
• supports_optimizer_hints? (>= v6.0.0)
• supports_partial_index?
• supports_partitioned_indexes? (>= v6.1.3.1)
• supports_pgcrypto_uuid? (>= v5.1.7)
• supports_primary_key?
• supports_ranges?
• supports_restart_db_transac... (>= v7.1.3.2)
• supports_savepoints?
• supports_standard_conformin... (<= v2.2.1)
• supports_statement_cache?
• supports_transaction_isolat...
• supports_unique_constraints? (>= v7.1.3.2)
• supports_validate_constraints? (>= v5.2.3)
• supports_views?
• supports_virtual_columns? (>= v7.0.0)
• table_alias_length
• table_definition (<= v3.2.13)
• table_exists? (<= v3.2.13)
• tables (<= v3.2.13)
• transaction (<= v2.2.1)
• transaction_active? (<= v2.2.1)
• translate_exception
• translate_field_type (<= v1.2.6)
• truncate
• type_cast (<= v3.2.13)
• type_map (>= v4.1.8)
• type_to_sql (<= v3.2.13)
• unescape_bytea (<= v3.2.13)
• update_sql (<= v3.2.13)
• update_table_definition
• update_typemap_for_default_... (>= v6.0.0)
• use_insert_returning?
• valid_type?

= private
= protected