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https://issues.apache.org/jira/browse/CARBONDATA-2282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16428463#comment-16428463
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anubhav tarar commented on CARBONDATA-2282:
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[~chenliang613]
In this PR we are handling the scenario of querying data to standard hive
partitioned table in carbondata.
although you are getting the correct data from partition table but in current
master branch we were iterating over all the partitions to get the data not the
one which is required,which will be slow you can check value of property
mapreduce.input.carboninputformat.partitions.to.prune in carboninputformat
class after executing query on a particular partition it is null so when
getPartitionsToPrune method is called it is returning null value instead of
required partition specs
but now in this pr we have identified the required partitions, so the query
will be performed only on the required partition.
Firstly we are identifying the partition columns through domain constraints in
presto and after that we are adding the Partition Spec to the configuration
object to query partition
> presto carbon not support query partition table
> -----------------------------------------------
>
> Key: CARBONDATA-2282
> URL: https://issues.apache.org/jira/browse/CARBONDATA-2282
> Project: CarbonData
> Issue Type: Bug
> Components: core, presto-integration
> Affects Versions: 1.3.0
> Reporter: zhangwei
> Assignee: anubhav tarar
> Priority: Major
> Fix For: 1.3.0
>
> Attachments: partitonToPrune.patch
>
>
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