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https://issues.apache.org/jira/browse/SPARK-23613?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16388494#comment-16388494
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Ramandeep Singh commented on SPARK-23613:
-----------------------------------------

To add to it, the query works fine with subquery factoring.

 

with b1 as (select b.* from b)

select * from jq ( select a.col1, b.col2 from a,b1 where a.col3=b1.col3)

 

 

> Different Analyzed logical plan data types for the same table in different 
> queries
> ----------------------------------------------------------------------------------
>
>                 Key: SPARK-23613
>                 URL: https://issues.apache.org/jira/browse/SPARK-23613
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.2.0
>         Environment: Spark 2.2.0
> Hive: 2
>            Reporter: Ramandeep Singh
>            Priority: Blocker
>              Labels: SparkSQL
>
> Hi,
> The column datatypes are correctly analyzed for simple select query. Note 
> that the problematic column is not selected anywhere in the complicated 
> scenario.
> Let's say Select * from a;
> Now let's say there is a query involving temporary view on another table and 
> its join with this table. 
> Let's call that table b (temporary view on a dataframe); 
> select * from jq ( select a.col1, b.col2 from a,b where a.col3=b=col3)
> Fails with exception on some column not part of the projection in the join 
> query
> Exception in thread "main" org.apache.spark.sql.AnalysisException: Cannot up 
> cast `a`.col5 from from decimal(8,0) to  col5#1234: decimal(6,2) as it may 
> truncate.
>  



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