Github user piaozhexiu commented on the pull request:
https://github.com/apache/spark/pull/6921#issuecomment-116790870
One last update (hopefully). I realized that I can push down predicates
even when `convertMetastoreParquet` is true. Basically, the same can be done in
`ParquetConversion` as in `HiveTableScan`. I just pushed the update for this.
Here is the summary of the current status:
Case | Predicate pushdown
------- | -----------------------------
Integral and string types | Yes
Varchar type | No
Hive 0.13 and newer | Yes
Hive 0.12 and older | No
convertMetastoreParquet=true on partitioned table | Yes
convertMetastoreParquet=true on non-partitioned table | No
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