Marcel Kornacker has posted comments on this change.

Change subject: IMPALA-4624: Implement Parquet dictionary filtering
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Patch Set 17:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/5904/17/be/src/exec/hdfs-parquet-scanner.cc
File be/src/exec/hdfs-parquet-scanner.cc:

Line 623:       // Skip this row group if any issue with dictionaries
we can't do that in general. there's an abort-on-error query option.


http://gerrit.cloudera.org:8080/#/c/5904/17/fe/src/main/java/org/apache/impala/analysis/FunctionCallExpr.java
File fe/src/main/java/org/apache/impala/analysis/FunctionCallExpr.java:

Line 230:   static boolean isBuiltinRandomFn(String fnName) {
given that there's a built-in 'random', i don't think this is a good name. but 
qualifying it with 'builtin' is.

i'm also not sure about 'isRandomizedBuiltin'. i thought non-deterministic 
captured the semantics accurately (and now isn't non-deterministic, because it 
should always return the same result in every invocation in a query).


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Gerrit-MessageType: comment
Gerrit-Change-Id: I3a7cc3bd0523fbf3c79bd924219e909ef671cfd7
Gerrit-PatchSet: 17
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
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Gerrit-Reviewer: Alex Behm <[email protected]>
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Gerrit-Reviewer: Joe McDonnell <[email protected]>
Gerrit-Reviewer: Lars Volker <[email protected]>
Gerrit-Reviewer: Marcel Kornacker <[email protected]>
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