alamb commented on code in PR #15634:
URL: https://github.com/apache/datafusion/pull/15634#discussion_r2033670139
##########
datafusion/substrait/tests/cases/roundtrip_logical_plan.rs:
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@@ -1076,6 +1076,46 @@ async fn roundtrip_literal_struct() -> Result<()> {
Ok(())
}
+#[tokio::test]
+async fn roundtrip_literal_named_struct() -> Result<()> {
+ let plan = generate_plan_from_sql(
+ "SELECT STRUCT(1 as int_field, true as boolean_field, CAST(NULL AS
STRING) as string_field) FROM data",
+ true,
+ true,
+ )
+ .await?;
+
+ assert_snapshot!(
+ plan,
+ @r#"
+ Projection: Struct({int_field:1,boolean_field:true,string_field:}) AS
named_struct(Utf8("int_field"),Int64(1),Utf8("boolean_field"),Boolean(true),Utf8("string_field"),NULL)
+ TableScan: data projection=[]
+ "#
+ );
+ Ok(())
+}
+
+#[tokio::test]
+async fn roundtrip_literal_renamed_struct() -> Result<()> {
+ // This test aims to hit a case where the struct column itself has the
expected name, but its
+ // inner field needs to be renamed.
+ let plan = generate_plan_from_sql(
+ "SELECT CAST((STRUCT(1)) AS Struct<\"int_field\"Int>) AS
'Struct({c0:1})' FROM data",
Review Comment:
I don't understand how this query is converting String --> StringView
(this seems like a good test in my opinion)
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