findepi commented on code in PR #14474:
URL: https://github.com/apache/datafusion/pull/14474#discussion_r1942596627
##########
datafusion/optimizer/src/decorrelate_predicate_subquery.rs:
##########
@@ -1844,6 +1864,69 @@ mod tests {
assert_optimized_plan_equal(plan, expected)
}
+ #[test]
+ fn exists_uncorrelated_unnest() -> Result<()> {
+ let subquery_table_source = table_source(&Schema::new(vec![Field::new(
+ "arr",
+ DataType::List(Arc::new(Field::new_list_field(DataType::Int32,
true))),
+ true,
+ )]));
+ let subquery = LogicalPlanBuilder::scan_with_filters(
+ "sq",
+ subquery_table_source,
+ None,
+ vec![],
+ )?
+ .unnest_column("arr")?
+ .build()?;
+ let table_scan = test_table_scan()?;
+ let plan = LogicalPlanBuilder::from(table_scan)
+ .filter(exists(Arc::new(subquery)))?
+ .project(vec![col("test.b")])?
+ .build()?;
+
+ let expected = "Projection: test.b [b:UInt32]\
+ \n LeftSemi Join: Filter: Boolean(true) [a:UInt32,
b:UInt32, c:UInt32]\
+ \n TableScan: test [a:UInt32, b:UInt32, c:UInt32]\
+ \n SubqueryAlias: __correlated_sq_1 [arr:Int32;N]\
+ \n Unnest: lists[sq.arr|depth=1] structs[]
[arr:Int32;N]\
+ \n TableScan: sq [arr:List(Field { name:
\"item\", data_type: Int32, nullable: true, dict_id: 0, dict_is_ordered: false,
metadata: {} });N]";
+ assert_optimized_plan_equal(plan, expected)
+ }
+
+ #[test]
+ fn exists_correlated_unnest() -> Result<()> {
+ eprintln!("test start: exists_correlated_unnest");
Review Comment:
thanks for catching me
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