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Posted to dev@hive.apache.org by "Navis (JIRA)" <ji...@apache.org> on 2012/07/16 10:05:34 UTC
[jira] [Commented] (HIVE-3260) support bucketed mapjoin where the
small table has different number of buckets for different partitons
[ https://issues.apache.org/jira/browse/HIVE-3260?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13414916#comment-13414916 ]
Navis commented on HIVE-3260:
-----------------------------
I couldn't find ddl for creating partition with bucket number.
>From org.apache.hadoop.hive.ql.metadata.Partition
{code}
/**
* The number of buckets is a property of the partition. However - internally
* we are just storing it as a property of the table as a short term measure.
*/
public int getBucketCount() {
return table.getNumBuckets();
{code}
Does this mean that it's not possible?
> support bucketed mapjoin where the small table has different number of buckets for different partitons
> ------------------------------------------------------------------------------------------------------
>
> Key: HIVE-3260
> URL: https://issues.apache.org/jira/browse/HIVE-3260
> Project: Hive
> Issue Type: Bug
> Reporter: Namit Jain
>
> Consider the following scenario:
> A (1 partition) join B (2 partitions)
> A has 2 buckets, whereas B has 2 and 4 buckets for different partitions.
> The bucketed mapjoin should still work.
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