Method: ActiveRecord::ConnectionAdapters::AbstractMysqlAdapter#show_variable

Defined in:
activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb

#show_variable(name) ⇒ Object

SHOW VARIABLES LIKE ‘name’



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# File 'activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb', line 579

def show_variable(name)
  query_value("SELECT @@#{name}", "SCHEMA", materialize_transactions: false, allow_retry: true)
rescue ActiveRecord::StatementInvalid
  nil
end