[SPARK-34444] Pushdown scalar-subquery filter to FileSourceScan

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.2.0
• Fix Version/s: 4.0.0
• Component/s: SQL
• Assignee: Unassigned
• Reporter: Yuming Wang
• Created: 16/Feb/21 07:06
• Updated: 07/Nov/23 01:32
• Resolved: 07/Nov/23 01:32

Description

We can pushdown a < (select max(d) from t2) to FileSourceScan:

sql("CREATE TABLE t1 using parquet AS SELECT id AS a, id AS b FROM range(500000000L)")
sql("CREATE TABLE t2 using parquet AS SELECT id AS d FROM range(20)")
sql("SELECT * FROM t1 WHERE b = (select max(d) from t2)").show

Issue Links

• is fixed by: SPARK-43402 FileSourceScanExec supports push down data filter with scalar subquery
• links to: [Github] Pull Request #31573 (wangyum)
• links to: [Github] Pull Request #31573 (wangyum)
• links to: [Github] Pull Request #36128 (wangyum)
• links to: [Github] Pull Request #36128 (wangyum)