rsim/oracle-enhanced — comment on commit c1f3efec34b3e499667d528dda3d2768b82cbf6a
File: lib/active_record/connection_adapters/oracle_enhanced_adapter.rb line 623
By ebeigarts:

This is to avoid ORA-24374: define not done before fetch or execute and fetch

http://stackoverflow.com/questions/2157703/how-can-i-fetch-explain-plan-for-an-oracle-sql-query-from-php