10.6. Physical Limits

The method ExecutionFactory.getMaxInCriteriaSize() can be used to specify the maximum number of values that can be passed in an IN criteria. This is an important constraint as an IN criteria is frequently used to pass criteria between one source and another using a dependent join.

The method ExecutionFactory.getMaxDependentInPredicates() is used to specify the maximum number of IN predicates (of at most MaxInCriteriaSize) that can be passed as part of a dependent join. For example if there are 10000 values to pass as part of the dependent join and a MaxInCriteriaSize of 1000 and a MaxDependentInPredicates setting of 5, then the dependent join logic will form two source queries each with 5 IN predicates of 1000 values each combined by OR.

The method ExecutionFactory.getMaxFromGroups() can be used to specify the maximum number of FROM Clause groups that can used in a join. -1 indicates there is no limit.