TAJO-558: HCatalogStore can't scan columns. (jaehwa)
TAJO-560: CTAS PARTITION BY with UNION can cause invalid global plan. (hyunsik)
TAJO-520: Move tajo-core-storage to tajo-storage. (jinho)
TAJO-565: FilterPushDown rewrite rule does not push filters on partitioned scans.
TAJO-558: HCatalogStore can't scan columns. (adding missed file)
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/incubator-tajo into TAJO-559
Completed sortedColPartitionedStoreExec.