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Only unnest source for EmptyRelation #15159

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Merged
merged 5 commits into from
Mar 24, 2025
Merged

Only unnest source for EmptyRelation #15159

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fb1f679
Only unnest source for `EmptyRelation`
blaginin Mar 11, 2025
28f5301
Add a note on new condition
blaginin Mar 15, 2025
1cb70d7
Merge branch 'main' into bugfix/unnest-source
blaginin Mar 15, 2025
ef4a79d
Remove new test
blaginin Mar 17, 2025
d9218c5
Put all unnest assumptions into one function
blaginin Mar 20, 2025
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6 changes: 0 additions & 6 deletions datafusion/sql/tests/cases/plan_to_sql.rs
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@blaginin blaginin Mar 17, 2025 •
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Had to remove this new test because now (even in main) it produces SELECT * FROM (SELECT [1, 2, 3] AS c) CROSS JOIN UNNEST(c). Feels like this should be discussed separately

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I don't understand this comment -- doesn't this PR add a new test?

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@blaginin blaginin Mar 21, 2025 •
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Sorry -- before I added one more test, but then I have to remove it due to ef4a79d - I think we can discuss in that issue and work on it further

Original file line number Diff line number Diff line change
Expand Up @@ -645,12 +645,6 @@ fn roundtrip_statement_with_dialect() -> Result<()> {
parser_dialect: Box::new(GenericDialect {}),
unparser_dialect: Box::new(CustomDialectBuilder::default().with_unnest_as_table_factor(true).build()),
},
TestStatementWithDialect {
sql: "select * from (select [1, 2, 3] as c), unnest(c);",
expected: r#"SELECT * FROM (SELECT [1, 2, 3] AS c) CROSS JOIN UNNEST(c)"#,
parser_dialect: Box::new(GenericDialect {}),
unparser_dialect: Box::new(CustomDialectBuilder::default().with_unnest_as_table_factor(true).build()),
},
TestStatementWithDialect {
sql: "SELECT * FROM unnest_table u, UNNEST(u.array_col)",
expected: r#"SELECT u.array_col, u.struct_col, "UNNEST(outer_ref(u.array_col))" FROM unnest_table AS u CROSS JOIN LATERAL (SELECT UNNEST(u.array_col) AS "UNNEST(outer_ref(u.array_col))")"#,
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