Dan Hecht has posted comments on this change. Change subject: IMPALA-5036: Parquet count star optimization ......................................................................
Patch Set 5: (1 comment) http://gerrit.cloudera.org:8080/#/c/6812/5/fe/src/main/java/org/apache/impala/planner/HdfsScanNode.java File fe/src/main/java/org/apache/impala/planner/HdfsScanNode.java: Line 109: * > Taras, I think Dan is looking for a comment along the lines of what we have Yup, that's the comment I was looking for. I'm fine with its current location without duplicating it, but maybe cross-reference it from where optimize_parquet_count_star_ is defined in the header, to make it easier to understand why the backend code does what it does: // See HdfsScanNode.applyParquetCountStarOptimization() -- To view, visit http://gerrit.cloudera.org:8080/6812 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: comment Gerrit-Change-Id: I536b85c014821296aed68a0c68faadae96005e62 Gerrit-PatchSet: 5 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: Taras Bobrovytsky <[email protected]> Gerrit-Reviewer: Alex Behm <[email protected]> Gerrit-Reviewer: Dan Hecht <[email protected]> Gerrit-Reviewer: Lars Volker <[email protected]> Gerrit-Reviewer: Marcel Kornacker <[email protected]> Gerrit-Reviewer: Mostafa Mokhtar <[email protected]> Gerrit-Reviewer: Taras Bobrovytsky <[email protected]> Gerrit-Reviewer: Zach Amsden <[email protected]> Gerrit-HasComments: Yes
