method
supports_explain?
v5.2.3 -
Show latest stable
- Class:
ActiveRecord::ConnectionAdapters
supports_explain?()public
No documentation available.
# File activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb, line 83
def supports_explain?
true
end- add_index
- add_sql_comment!
- begin_db_transaction
- begin_isolated_db_transaction
- bulk_change_table
- case_sensitive_comparison
- change_column
- change_column_comment
- change_column_default
- change_column_null
- change_table_comment
- charset
- clear_cache!
- collation
- columns_for_distinct
- commit_db_transaction
- create_database
- current_database
- default_index_type?
- disable_referential_integrity
- drop_database
- drop_table
- each_hash
- empty_insert_statement_value
- error_number
- exec_rollback_db_transaction
- execute
- execute_and_free
- explain
- foreign_keys
- get_advisory_lock
- index_algorithms
- insert_fixtures_set
- join_to_update
- mariadb?
- native_database_types
- primary_keys
- recreate_database
- release_advisory_lock
- rename_column
- rename_index
- rename_table
- show_variable
- strict_mode?
- supports_advisory_locks?
- supports_bulk_alter?
- supports_datetime_with_precision?
- supports_explain?
- supports_foreign_keys?
- supports_index_sort_order?
- supports_indexes_in_create?
- supports_transaction_isolation?
- supports_views?
- supports_virtual_columns?
- table_comment
- table_options
- truncate
- type_to_sql
- version
- new
-
add_index_for_alter - add_timestamps_for_alter
- arel_visitor
- binary_to_sql
- can_perform_case_insensitive_comparison_for?
- change_column_for_alter
- column_definitions
- combine_multi_statements
- configure_connection
- create_table_info
- extract_precision
- initialize_type_map
- integer_to_sql
- max_allowed_packet
- max_allowed_packet_reached?
- mismatched_foreign_key
- register_integer_type
- remove_index_for_alter
- remove_timestamps_for_alter
- rename_column_for_alter
- subquery_for
- supports_rename_index?
- text_to_sql
- translate_exception
- version_string