GitHub user gatorsmile opened a pull request:
https://github.com/apache/spark/pull/19723
[BACKPORT-2.2] [SPARK-22488][SQL] Fix the view resolution issue in the
SparkSession internal table() API
## What changes were proposed in this pull request?
The current internal `table()` API of `SparkSession` bypasses the Analyzer
and directly calls `sessionState.catalog.lookupRelation` API. This skips the
view resolution logics in our Analyzer rule `ResolveRelations`. This internal
API is widely used by various DDL commands, public and internal APIs.
Users might get the strange error caused by view resolution when the
default database is different.
```
Table or view not found: t1; line 1 pos 14
org.apache.spark.sql.AnalysisException: Table or view not found: t1; line 1
pos 14
at
org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
```
This PR is to fix it by enforcing it to use `ResolveRelations` to resolve
the table.
## How was this patch tested?
Added a test case and modified the existing test cases
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gatorsmile/spark backport22488
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/19723.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 #19723
----
commit e8f6dbb12aa026ffc4c00d2dd9553c3a0c3b10a7
Author: gatorsmile <gatorsm...@gmail.com>
Date: 2017-11-11T17:20:11Z
[SPARK-22488][SQL] Fix the view resolution issue in the SparkSession
internal table() API
The current internal `table()` API of `SparkSession` bypasses the Analyzer
and directly calls `sessionState.catalog.lookupRelation` API. This skips the
view resolution logics in our Analyzer rule `ResolveRelations`. This internal
API is widely used by various DDL commands, public and internal APIs.
Users might get the strange error caused by view resolution when the
default database is different.
```
Table or view not found: t1; line 1 pos 14
org.apache.spark.sql.AnalysisException: Table or view not found: t1; line 1
pos 14
at
org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
```
This PR is to fix it by enforcing it to use `ResolveRelations` to resolve
the table.
Added a test case and modified the existing test cases
Author: gatorsmile <gatorsm...@gmail.com>
Closes #19713 from gatorsmile/viewResolution.
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