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https://issues.apache.org/jira/browse/SPARK-24994?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun updated SPARK-24994:
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    Affects Version/s:     (was: 2.4.0)
                       3.0.0

> When the data type of the field is converted to other types, it can also 
> support pushdown to parquet
> ----------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-24994
>                 URL: https://issues.apache.org/jira/browse/SPARK-24994
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: liuxian
>            Priority: Major
>
> For this statement: select * from table1 where a = 100;
> the data type of `a` is `smallint` , because the defaut data type of 100 is 
> `int` ,so the data type of  'a' is converted to `int`.
> In this case, it does not support push down to parquet.
> In our business, for our SQL statements, and we generally do not convert 100 
> to `smallint`, We hope that it can support push down to parquet for this 
> situation.



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