peasee commented on code in PR #12994:
URL: https://github.com/apache/datafusion/pull/12994#discussion_r1807298937
##########
datafusion/sql/tests/cases/plan_to_sql.rs:
##########
@@ -261,6 +261,24 @@ fn roundtrip_statement_with_dialect() -> Result<()> {
unparser_dialect: Box<dyn UnparserDialect>,
}
let tests: Vec<TestStatementWithDialect> = vec![
+ TestStatementWithDialect {
+ sql: "select min(ta.j1_id) as j1_min from j1 ta order by
min(ta.j1_id) limit 10;",
+ expected:
+ // top projection sort gets derived into a subquery
+ // for MySQL, this subquery needs an alias
+ "SELECT `j1_min` FROM (SELECT min(`ta`.`j1_id`) AS `j1_min`,
min(`ta`.`j1_id`) FROM `j1` AS `ta` ORDER BY min(`ta`.`j1_id`) ASC) AS
`derived_sort` LIMIT 10",
Review Comment:
It is valid for MySQL, I just tested it out in my CLI. I've added both as
new cases, thanks!
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