supports_primary_key?

• 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
• add_column
• add_enum_value (>= v7.1.3.2)
• add_oid (>= v4.1.8)
• add_order_by_for_associatio... (<= v2.3.8)
• add_pg_decoders (>= v5.0.0.1)
• add_pg_encoders (>= v5.0.0.1)
• arel_visitor (>= v5.0.0.1)
• begin_db_transaction
• build_insert_sql (>= v6.0.0)
• build_statement_pool (>= v6.0.0)
• can_perform_case_insensitiv... (>= v5.0.0.1)
• cast_to_time (<= v1.2.6)
• change_column
• change_column_default
• change_column_null
• check_version (>= v6.0.0)
• clear_cache! (>= v3.1.0)
• client_min_messages
• client_min_messages=
• column_definitions
• column_name_for_operation (>= v4.2.1)
• columns
• commit_db_transaction
• configure_connection
• connect
• construct_coder (>= v5.0.0.1)
• create
• create_database
• create_enum (>= v7.0.0)
• create_savepoint
• create_table_definition (>= v4.0.2)
• current_database
• current_schema (>= v3.2.1)
• default_index_type? (>= v5.1.7)
• default_sequence_name
• default_value (<= v1.2.6)
• disable_extension (>= v4.0.2)
• disable_referential_integrity
• discard! (>= v5.2.3)
• disconnect!
• distinct
• drop_database
• drop_enum (>= v7.1.3.2)
• enable_extension (>= v4.0.2)
• encoding
• enum_types (>= v7.0.0)
• escape_bytea
• exec_cache (>= v3.1.0)
• exec_delete (>= v3.1.0)
• exec_no_cache (>= v3.1.0)
• exec_query (>= v3.1.0)
• exec_update (>= v3.1.0)
• execute
• execute_and_clear (>= v4.2.1)
• explain (>= v3.2.1)
• extension_available? (>= v6.0.0)
• extension_enabled? (>= v4.0.2)
• extensions (>= v4.0.2)
• extract_default_function (>= v4.2.1)
• extract_limit (>= v4.2.1)
• extract_pg_identifier_from_...
• extract_schema_and_table (>= v3.1.0)
• extract_table_ref_from_inse... (>= v3.2.1)
• extract_value_from_default (>= v4.2.1)
• get_advisory_lock (>= v5.0.0.1)
• get_database_version (>= v6.0.0)
• get_oid_type (>= v4.1.8)
• has_default_function? (>= v4.2.1)
• index_algorithms (>= v4.0.2)
• indexes
• index_name_length
• initialize_type_map (>= v4.0.2)
• insert
• insert_sql (>= v3.1.0)
• in_transaction? (>= v5.0.0.1)
• is_cached_plan_failure? (>= v5.0.0.1)
• last_insert_id
• last_insert_id_result (>= v4.0.2)
• last_insert_id_value (>= v4.0.2)
• load_additional_types (>= v4.2.1)
• load_types_queries (>= v7.0.0)
• lookup_cast_type (>= v4.2.1)
• max_identifier_length (>= v5.1.7)
• migration_keys (>= v4.0.2)
• native_database_types
• outside_transaction?
• pk_and_sequence_for
• postgresql_version
• prepare_column_options (>= v4.0.2)
• prepare_statement (>= v3.2.1)
• primary_key
• query
• quote
• quote_column_name
• quoted_date
• quote_string
• quote_table_name
• reconfigure_connection_time... (>= v7.1.3.2)
• reconnect (>= v7.1.3.2)
• reconnect!
• recreate_database
• release_advisory_lock (>= v5.0.0.1)
• release_savepoint
• reload_type_map (>= v4.0.2)
• remove_index (<= v2.2.1)
• remove_index!
• rename_column
• rename_enum (>= v7.1.3.2)
• rename_enum_value (>= v7.1.3.2)
• rename_index (>= v3.1.0)
• rename_table
• reset! (>= v3.1.0)
• reset_pk_sequence!
• result_as_array
• retryable_query_error? (>= v7.1.3.2)
• return_value_after_insert? (>= v7.1.3.2)
• rollback_db_transaction
• rollback_to_savepoint
• schema_creation (>= v4.0.2)
• schema_exists? (>= v3.2.1)
• schema_search_path
• schema_search_path=
• select
• select_raw
• select_rows
• serial_sequence (>= v3.1.0)
• session_auth= (>= v3.1.0)
• set_standard_conforming_str...
• sql_for_insert (>= v3.1.0)
• sql_key (>= v3.2.1)
• substitute_at (>= v3.1.0)
• supports_advisory_locks? (>= v5.0.0.1)
• supports_bulk_alter? (>= v5.2.3)
• supports_check_constraints? (>= v6.1.3.1)
• supports_comments? (>= v5.0.0.1)
• supports_common_table_expre... (>= v6.1.3.1)
• supports_datetime_with_prec... (>= v5.0.0.1)
• supports_ddl_transactions?
• supports_deferrable_constra... (>= v7.0.0)
• supports_disable_referentia...
• supports_exclusion_constrai... (>= v7.1.3.2)
• supports_explain? (>= v3.2.1)
• supports_expression_index? (>= v5.0.0.1)
• supports_extensions? (>= v4.0.2)
• supports_foreign_keys? (>= v4.2.1)
• supports_foreign_tables? (>= v5.2.3)
• supports_identity_columns? (>= v7.1.3.2)
• supports_index_include? (>= v7.1.3.2)
• supports_index_sort_order? (>= v3.2.1)
• 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...
• supports_json? (>= v5.0.0.1)
• supports_lazy_transactions? (>= v6.0.0)
• supports_materialized_views? (>= v4.2.1)
• supports_migrations?
• supports_nulls_not_distinct? (>= v7.1.3.2)
• supports_optimizer_hints? (>= v6.0.0)
• supports_partial_index? (>= v4.0.2)
• supports_partitioned_indexes? (>= v6.1.3.1)
• supports_pgcrypto_uuid? (>= v5.1.7)
• supports_primary_key?
• supports_ranges? (>= v4.0.2)
• supports_restart_db_transac... (>= v7.1.3.2)
• supports_savepoints?
• supports_standard_conformin... (<= v2.2.1)
• supports_statement_cache? (>= v3.1.0)
• supports_transaction_isolat... (>= v4.0.2)
• supports_unique_constraints? (>= v7.1.3.2)
• supports_validate_constraints? (>= v5.2.3)
• supports_views? (>= v4.2.1)
• supports_virtual_columns? (>= v7.0.0)
• table_alias_length
• table_definition (>= v3.1.0)
• table_exists?
• tables
• transaction (<= v2.2.1)
• transaction_active? (<= v2.2.1)
• translate_exception
• translate_field_type (<= v1.2.6)
• truncate (>= v4.2.1)
• type_cast (>= v3.1.0)
• type_map (>= v4.1.8)
• type_to_sql
• unescape_bytea
• update_sql
• update_table_definition (>= v4.0.2)
• update_typemap_for_default_... (>= v6.0.0)
• use_insert_returning? (>= v4.0.2)
• valid_type? (>= v4.0.2)

= private
= protected