method
enable_index
rails latest stable - Class:
ActiveRecord::ConnectionAdapters::SchemaStatements
enable_index(table_name, index_name)public
Enables an index to be used by queries.
enable_index(:users, :email)
- add_belongs_to
- add_check_constraint
- add_column
- add_columns
- add_foreign_key
- add_index
- add_index_options
- add_reference
- add_timestamps
- assume_migrated_upto_version
- build_add_column_definition
- build_change_column_default_definition
- build_create_index_definition
- build_create_join_table_definition
- build_create_table_definition
- bulk_change_table
- change_column
- change_column_comment
- change_column_default
- change_column_null
- change_table
- change_table_comment
- check_constraint_exists?
- check_constraint_options
- check_constraints
- column_exists?
- columns
- columns_for_distinct
- create_join_table
- create_schema_dumper
- create_table
- data_source_exists?
- data_sources
- disable_index
- distinct_relation_for_primary_key
- drop_join_table
- drop_table
- dump_schema_versions
- enable_index
- foreign_key_column_for
- foreign_key_exists?
- foreign_key_options
- foreign_keys
- index_algorithm
- index_exists?
- index_name
- index_name_exists?
- indexes
- internal_string_options_for_primary_key
- max_index_name_size
- native_database_types
- options_include_default?
- primary_key
- quoted_columns_for_index
- remove_belongs_to
- remove_check_constraint
- remove_column
- remove_columns
- remove_constraint
- remove_foreign_key
- remove_index
- remove_reference
- remove_timestamps
- rename_column
- rename_index
- rename_table
- schema_creation
- table_alias_for
- table_comment
- table_exists?
- table_options
- tables
- type_to_sql
- update_table_definition
- use_foreign_keys?
- valid_column_definition_options
- valid_primary_key_options
- valid_table_definition_options
- view_exists?
- views
-
add_column_for_alter - add_index_sort_order
- add_options_for_index_columns
- add_timestamps_for_alter
- can_remove_index_by_name?
- change_column_default_for_alter
- check_constraint_for
- check_constraint_for!
- check_constraint_name
- column_options_keys
- create_alter_table
- create_index_definition
- create_table_definition
- data_source_sql
- expression_column_name?
- extract_foreign_key_action
- extract_new_comment_value
- extract_new_default_value
- fetch_type_metadata
- foreign_key_for
- foreign_key_for!
- foreign_key_name
- foreign_keys_enabled?
- generate_index_name
- index_column_names
- index_name_for_remove
- index_name_options
- insert_versions_sql
- options_for_index_columns
- quoted_scope
- reference_name_for_table
- remove_column_for_alter
- remove_columns_for_alter
- remove_timestamps_for_alter
- rename_column_indexes
- rename_column_sql
- rename_table_indexes
- strip_table_name_prefix_and_suffix
- valid_index_options
- validate_change_column_null_argument!
- validate_create_table_options!
- validate_index_length!
- validate_table_length!