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https://issues.apache.org/jira/browse/SPARK-32587?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17176996#comment-17176996
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Hyukjin Kwon commented on SPARK-32587:
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Could you share the reproducible codes and the actual output?
> SPARK SQL writing to JDBC target with bit datatype using Dataframe is writing
> NULL values
> -----------------------------------------------------------------------------------------
>
> Key: SPARK-32587
> URL: https://issues.apache.org/jira/browse/SPARK-32587
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.4.5
> Reporter: Mohit Dave
> Priority: Major
>
> While writing to a target in SQL Server using Microsoft's SQL Server driver
> using dataframe.write API the target is storing NULL values for BIT columns.
>
> Table definition
> Azure SQL DB
> 1)Create 2 tables with column type as bit
> 2)Insert some record into 1 table
> Create a SPARK job
> 1)Create a Dataframe using spark.read with the following query
> select <bit_column> from <source_table>
> 2)Write the dataframe to a target table with bit type as column.
>
> Observation : Bit type is getting converted to NULL at the target
>
>
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