[jira] [Created] (SPARK-24994) When the data type of the field is converted to other types, it can also support pushdown to parquet

["liuxian (JIRA)" <ji...@apache.org>]

liuxian created SPARK-24994:
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             Summary: 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: 2.4.0
            Reporter: liuxian


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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