[jira] [Commented] (SPARK-34444) Pushdown scalar-subquery filter to FileSourceScan

["Apache Spark (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-34444?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17285149#comment-17285149 ] 

Apache Spark commented on SPARK-34444:
--------------------------------------

User 'wangyum' has created a pull request for this issue:
https://github.com/apache/spark/pull/31573

> Pushdown scalar-subquery filter to FileSourceScan
> -------------------------------------------------
>
>                 Key: SPARK-34444
>                 URL: https://issues.apache.org/jira/browse/SPARK-34444
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.2.0
>            Reporter: Yuming Wang
>            Priority: Major
>
> We can pushdown {{a < (select max(d) from t2)}} to FileSourceScan:
> {code:sql}
> CREATE TABLE t1 using parquet AS SELECT id AS a, id AS b FROM range(500000000L);
> CREATE TABLE t2 using parquet AS SELECT id AS d FROM range(20);
> SELECT count(*) FROM t1 where a < (select max(d) from t2);
> {code}



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