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https://issues.apache.org/jira/browse/HIVE-10755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14944083#comment-14944083
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Aihua Xu commented on HIVE-10755:
---------------------------------
[~daijy] I'm working on adding the unit tests you mentioned to
TestHCatLoader.java. Actually I have problem to load complex_table with the
following code.
{noformat}
PigServer server = new PigServer(ExecType.LOCAL);
server.registerQuery("A = load '" + COMPLEX_TABLE + "' using
org.apache.hive.hcatalog.pig.HCatLoader();");
server.registerQuery("B = load '" + COMPLEX_TABLE + "' using
org.apache.hive.hcatalog.pig.HCatLoader();");
server.registerQuery("C = join A by name, B by name;");
server.registerQuery("D = foreach C generate B::studentid;");
{noformat}
{{Iterator<Tuple> iter = server.openIterator("A");}} won't be able to access
the data, while if I replace with basic_table it's fine.
Don't know too much pig/hcatalog. I'm wondering if I did anything wrong?
> Rework on HIVE-5193 to enhance the column oriented table acess
> --------------------------------------------------------------
>
> Key: HIVE-10755
> URL: https://issues.apache.org/jira/browse/HIVE-10755
> Project: Hive
> Issue Type: Sub-task
> Components: HCatalog
> Affects Versions: 1.2.0
> Reporter: Aihua Xu
> Assignee: Aihua Xu
> Fix For: 2.0.0
>
> Attachments: HIVE-10755.patch
>
>
> Add the support of column pruning for column oriented table access which was
> done in HIVE-5193 but was reverted due to the join issue in HIVE-10720.
> In 1.3.0, the patch posted by Viray didn't work, probably due to some jar
> reference. That seems to get fixed and that patch works in 2.0.0 now.
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