GitHub user liancheng opened a pull request:
https://github.com/apache/spark/pull/8460
[SPARK-10289] [SQL] Fixes JSONRelation refreshing on read path
PR #8035 added a `refresh()` call in `JSONRelation.buildScan()`. However,
when reading a partition table, `buildScan()` is invoked for each individual
partition. This PR works around this issue by special casing `JSONRelation` in
`DataSourceStrategy`. We should revisit this issue and deliver a more
appropriate fix later.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/liancheng/spark
spark-10289/refresh-partitioned-json-relations
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/8460.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #8460
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commit ac0052203e4cce97cf809a54a122a3a63e268b5d
Author: Cheng Lian <[email protected]>
Date: 2015-08-26T13:25:35Z
Fixes JSONRelation refreshing on read path
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