Redshift: PartiQL AT <index> by yoavcloud · Pull Request #2303 · apache/datafusion-sqlparser-rs

yoavcloud · 2026-04-15T12:43:25Z

Add support for the AT keyword in PartiQL that is used during unnesting to retrieve the index of an element in an array.

For example:

SELECT index, val FROM my_table t, t.my_array val AT index;

iffyio · 2026-04-17T08:05:37Z

+    /// Optional PartiQL index alias declared with `AT`.
+    pub at: Option<Ident>,


Can we add a link to the doc defining the syntax? (maybe an example syntax would also be helpful like we have on the explicit field)

iffyio · 2026-04-17T08:54:59Z

+
+#[test]
+fn test_partiql_from_alias_with_at_index() {
+    redshift().verified_stmt("SELECT * FROM lineitem AS l (a, b, c) AT idx");


for the test can we switch to all_dialect_where(|d| d.supports_partiql()) so that future dialects are covered without duplicating tests?

yoavcloud added 2 commits April 15, 2026 08:41

Redshift: PartiQL AT <index>

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Redshift: PartiQL AT <index>

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iffyio reviewed Apr 17, 2026

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		/// Optional PartiQL index alias declared with `AT`.
		pub at: Option<Ident>,