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Where to insert into multilevel directories like "insert directory '/HIVEFT25686/chinna/' from table".

hive.cache.expr.evaluation

• Default Value: true
• Added In: Hive 0.12.0 with HIVE-4209
• Bug Fix: Hive 0.14.0 with HIVE-7314 (expression caching doesn't work when using UDF inside another UDF or a Hive function)

If true, the evaluation result of a deterministic expression referenced twice or more will be cached. For example, in a filter condition like ".. where key + 10 > 10 or key + 10 = 0" the expression "key + 10" will be evaluated/cached once and reused for the following expression ("key + 10 = 0"). Currently, this is applied only to expressions in select or filter operators.

hive.resultset.use.unique.column.names

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