Grant Henke has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14050 )

Change subject: KUDU-1938 [java] Add support for VARCHAR pt 4
......................................................................


Patch Set 20:

(11 comments)

http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/main/java/org/apache/kudu/client/KeyEncoder.java
File java/kudu-client/src/main/java/org/apache/kudu/client/KeyEncoder.java:

http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/main/java/org/apache/kudu/client/KeyEncoder.java@41
PS20, Line 41: import org.jboss.netty.util.CharsetUtil;
Use the standard java charset here and anywhere else.
   java.nio.charset.StandardCharsets


http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/main/java/org/apache/kudu/client/PartialRow.java
File java/kudu-client/src/main/java/org/apache/kudu/client/PartialRow.java:

http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/main/java/org/apache/kudu/client/PartialRow.java@43
PS20, Line 43: import static org.apache.kudu.Type.STRING;
Nit: All the other types use `Type.x` where they are used. Remove these and use 
fully qualified `Type.x` where needed below.


http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/main/java/org/apache/kudu/client/PartialRow.java@659
PS20, Line 659:     addVarLengthData(columnIndex, bytes);
nit: To match all the addString methods should this call `addStringUtf8`?


http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/main/java/org/apache/kudu/client/RowResult.java
File java/kudu-client/src/main/java/org/apache/kudu/client/RowResult.java:

http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/main/java/org/apache/kudu/client/RowResult.java@403
PS20, Line 403:     checkType(columnIndex, Type.STRING, Type.VARCHAR);
We don't allow VARCHAR on getString in the PartialRow API. We probably should.

Either way both PartialRow and RowResult behavior should be consistent.


http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/test/java/org/apache/kudu/TestColumnSchema.java
File java/kudu-client/src/test/java/org/apache/kudu/TestColumnSchema.java:

http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/test/java/org/apache/kudu/TestColumnSchema.java@22
PS20, Line 22: import org.apache.kudu.util.CharUtil;
Nit: put with the kudu imports


http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/test/java/org/apache/kudu/TestColumnSchema.java@29
PS20, Line 29: import org.junit.rules.ExpectedException;
nit: put with the junit imports


http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/test/java/org/apache/kudu/client/TestKeyEncoding.java
File java/kudu-client/src/test/java/org/apache/kudu/client/TestKeyEncoding.java:

http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/test/java/org/apache/kudu/client/TestKeyEncoding.java@28
PS20, Line 28: import org.apache.kudu.util.CharUtil;
nit: put with the other kudu imports?


http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/test/java/org/apache/kudu/client/TestKuduClient.java
File java/kudu-client/src/test/java/org/apache/kudu/client/TestKuduClient.java:

http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/test/java/org/apache/kudu/client/TestKuduClient.java@24
PS20, Line 24: import static org.apache.kudu.test.ClientTestUtil.*;
Nit: Avoid * imports


http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/test/java/org/apache/kudu/client/TestKuduPredicate.java
File 
java/kudu-client/src/test/java/org/apache/kudu/client/TestKuduPredicate.java:

http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/test/java/org/apache/kudu/client/TestKuduPredicate.java@33
PS20, Line 33: import org.apache.kudu.util.CharUtil;
Nit: put with Kudu imports


http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/test/java/org/apache/kudu/client/TestScanPredicate.java
File 
java/kudu-client/src/test/java/org/apache/kudu/client/TestScanPredicate.java:

http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-client/src/test/java/org/apache/kudu/client/TestScanPredicate.java@28
PS20, Line 28: import org.apache.kudu.util.CharUtil;
Nit: Put with other kudu imports


http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-spark/src/main/scala/org/apache/kudu/spark/kudu/SparkUtil.scala
File java/kudu-spark/src/main/scala/org/apache/kudu/spark/kudu/SparkUtil.scala:

http://gerrit.cloudera.org:8080/#/c/14050/20/java/kudu-spark/src/main/scala/org/apache/kudu/spark/kudu/SparkUtil.scala@151
PS20, Line 151:       val dt = field.dataType.asInstanceOf[VarcharType]
Is there a test for this? I wonder if Spark will actually create a varchar 
schema given VarcharType in spark is only mean for internal parsing.
https://spark.apache.org/docs/latest/api/java/org/apache/spark/sql/types/VarcharType.html

Currently I don't think this code can be hit because `sparkTypeToKuduType` 
won't ever return VARCHAR. I think that is okay and we don't need to worry 
about autogenerating VARCHAR schemas from Spark.



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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I03edf5e65409e895512d5cd81a607180632e8995
Gerrit-Change-Number: 14050
Gerrit-PatchSet: 20
Gerrit-Owner: Attila Bukor <[email protected]>
Gerrit-Reviewer: Adar Dembo <[email protected]>
Gerrit-Reviewer: Attila Bukor <[email protected]>
Gerrit-Reviewer: Grant Henke <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Todd Lipcon <[email protected]>
Gerrit-Comment-Date: Wed, 02 Oct 2019 13:57:44 +0000
Gerrit-HasComments: Yes

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