GitHub user cloud-fan opened a pull request:
https://github.com/apache/spark/pull/18907
[SPARK-18464][SQL][followup] support old table which doesn't store schema
in table properties
## What changes were proposed in this pull request?
This is a follow-up of https://github.com/apache/spark/pull/15900 , to fix
one more bug:
When table schema is empty and need to be inferred at runtime, we should
not resolve parent plans before the schema has been inferred, or the parent
plans will be resolved against an empty schema and may get wrong result from
something like `select *`
## How was this patch tested?
regression test
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/cloud-fan/spark bug
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18907.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 #18907
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commit 227d93122a8962efa9b4d35fe3de0e94b36fddf4
Author: Wenchen Fan <[email protected]>
Date: 2017-08-10T16:45:27Z
support old table which doesn't store schema in table properties
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