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Posted to issues@spark.apache.org by "Yuming Wang (Jira)" <ji...@apache.org> on 2021/02/16 07:07:00 UTC
[jira] [Updated] (SPARK-34444) Pushdown scalar-subquery filter to
FileSourceScan
[ https://issues.apache.org/jira/browse/SPARK-34444?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yuming Wang updated SPARK-34444:
--------------------------------
Description:
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}
was:
We can pushdown {{a < (select max(d) from t2)}} to FileSourceScan:
{code:java}
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}
> 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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