You are viewing a plain text version of this content. The canonical link for it is here.

Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2020/06/02 06:27:31 UTC

[GitHub] [arrow] emkornfield commented on a change in pull request #7289: ARROW-8948: [Java][Integration] enable duplicate field names integration tests

emkornfield commented on a change in pull request #7289:
URL: https://github.com/apache/arrow/pull/7289#discussion_r433647053



##########
File path: java/README.md
##########
@@ -80,8 +80,12 @@ variable are set, the system property takes precedence.
 
 ## Java Properties
 
-For java 9 or later, should set "-Dio.netty.tryReflectionSetAccessible=true".
+ * For java 9 or later, should set "-Dio.netty.tryReflectionSetAccessible=true".
 This fixes `java.lang.UnsupportedOperationException: sun.misc.Unsafe or java.nio.DirectByteBuffer.(long, int) not available`. thrown by netty.
+ * To support duplicate fields in a `StructVector` enable "-Darrow.struct.conflict.policy=CONFLICT_APPEND".

Review comment:
       we've been using the policy that java properties should also be settable via environment variable (I believe in some context environment variables are easier to set).




----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

For queries about this service, please contact Infrastructure at:
users@infra.apache.org