Fredy Wijaya has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/10571 )

Change subject: IMPALA-7106: Log the original and rewritten SQL when SQL 
rewrite fails
......................................................................


Patch Set 19:

(7 comments)

http://gerrit.cloudera.org:8080/#/c/10571/18//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/10571/18//COMMIT_MSG@10
PS18, Line 10: SQL string when errors arise or as the result of "SHOW CREATE". 
When
> when errors arise or as the result of "show create"
Done


http://gerrit.cloudera.org:8080/#/c/10571/18/fe/src/main/java/org/apache/impala/analysis/AnalysisContext.java
File fe/src/main/java/org/apache/impala/analysis/AnalysisContext.java:

http://gerrit.cloudera.org:8080/#/c/10571/18/fe/src/main/java/org/apache/impala/analysis/AnalysisContext.java@474
PS18, Line 474: Rewritten SQL:
> use the same label as L480: "Rewritten SQL: "
Done


http://gerrit.cloudera.org:8080/#/c/10571/18/fe/src/main/java/org/apache/impala/analysis/TableRef.java
File fe/src/main/java/org/apache/impala/analysis/TableRef.java:

http://gerrit.cloudera.org:8080/#/c/10571/18/fe/src/main/java/org/apache/impala/analysis/TableRef.java@575
PS18, Line 575: boolean rewritten
> why's this not used?
InlinViewRef is a subclass of TableRef and it's used by the overriden 
InlineViewRef::tableRefToSql(boolean rewritten) in InlineViewRef, which affects 
the TableRef::toSql(boolean rewritten)


http://gerrit.cloudera.org:8080/#/c/10571/18/fe/src/main/java/org/apache/impala/analysis/ToSqlUtils.java
File fe/src/main/java/org/apache/impala/analysis/ToSqlUtils.java:

http://gerrit.cloudera.org:8080/#/c/10571/18/fe/src/main/java/org/apache/impala/analysis/ToSqlUtils.java@191
PS18, Line 191: ,
              :       boolean rewritten
> I think we should remove this and keep the original behavior. The intent is
The original behavior is still the same when calling ctasStmt.toSql(), see the 
new ExpRewriterTest.java L300.


http://gerrit.cloudera.org:8080/#/c/10571/18/fe/src/test/java/org/apache/impala/analysis/AnalyzeSubqueriesTest.java
File fe/src/test/java/org/apache/impala/analysis/AnalyzeSubqueriesTest.java:

http://gerrit.cloudera.org:8080/#/c/10571/18/fe/src/test/java/org/apache/impala/analysis/AnalyzeSubqueriesTest.java@714
PS18, Line 714: BETWEEN
> why did this change? I thought the only externally visible change will be r
Prior to this patch, the error message shows the rewritten SQL instead of the 
original one, which is incorrect. If you look at L711, the original SQL uses 
BETWEEN so the error message should technically return BETWEEN as well.


http://gerrit.cloudera.org:8080/#/c/10571/18/fe/src/test/java/org/apache/impala/analysis/ExprRewriterTest.java
File fe/src/test/java/org/apache/impala/analysis/ExprRewriterTest.java:

http://gerrit.cloudera.org:8080/#/c/10571/18/fe/src/test/java/org/apache/impala/analysis/ExprRewriterTest.java@237
PS18, Line 237:
> nit: remove these newlines following the banner
Done


http://gerrit.cloudera.org:8080/#/c/10571/18/fe/src/test/java/org/apache/impala/analysis/ExprRewriterTest.java@347
PS18, Line 347:
              :
              :
              :
              :
> simpler: Assert.assertEquals(stmt.toSql(), stmt.toSql(true))
Done



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Iab58b0cc865135d261dd4a7f72be130f2e7bde53
Gerrit-Change-Number: 10571
Gerrit-PatchSet: 19
Gerrit-Owner: Fredy Wijaya <[email protected]>
Gerrit-Reviewer: Bharath Vissapragada <[email protected]>
Gerrit-Reviewer: Fredy Wijaya <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Tianyi Wang <[email protected]>
Gerrit-Reviewer: Vuk Ercegovac <[email protected]>
Gerrit-Comment-Date: Fri, 13 Jul 2018 18:31:06 +0000
Gerrit-HasComments: Yes

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