optional constraits on the partition data to narrow which partitions are read
sets which fields are required by the caller.
optional predicate which will filter rows at the read level
optional constraits on the partition data to narrow which partitions are read
optional predicate which will filter rows at the read level
sets which fields are required by the caller.
The returned schema should take into account:
The returned schema should take into account:
1) Any projection. If a projection is set, then it should return the schema in the same order as the projection. If no projection is set then the schema should be driven from the hive metastore.
2) Any partitions set. These should be included in the schema columns.
optional constraits on the partition data to narrow which partitions are read
sets which fields are required by the caller.
optional predicate which will filter rows at the read level