JingsongLi commented on a change in pull request #9721: [FLINK-14129][hive]
HiveTableSource should implement ProjectableTable…
URL: https://github.com/apache/flink/pull/9721#discussion_r326460965
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File path:
flink-connectors/flink-connector-hive/src/main/java/org/apache/flink/connectors/hive/HiveTableInputFormat.java
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@@ -88,17 +86,23 @@
private transient InputFormat mapredInputFormat;
private transient HiveTablePartition hiveTablePartition;
+ // indices of fields to be returned, with projection applied (if any)
+ // TODO: push projection into underlying input format that supports it
Review comment:
I think orc/parquet is another story, we should use our implementation
instead of hadoop `RecordReader`.
What I want to ask is: can `RecordReader` support project push down?
If it is a easy way, Can we support it now?
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