How to disable EnumerableThetaJoin?

[aishwaryaanns]

In case of queries having outer joins with one condition on equality between 
two columns and another condition on one particular column, then in 
optimization, LogicalJoin has been converted to EnumerableThetaJoin instead of 
EnumerableJoin. How to make changes such that LogicalJoin will not be converted 
to EnumerableThetaJoin, but to EnumerableJoin?