zvonimir-dd commented on code in PR #2436:
URL:
https://github.com/apache/datafusion-sqlparser-rs/pull/2436#discussion_r3865906714
##########
tests/sqlparser_mysql.rs:
##########
@@ -4946,3 +4946,48 @@ fn parse_adjacent_string_literal_concatenation() {
fn parse_group_by_with_rollup() {
mysql().verified_stmt("SELECT * FROM tbl GROUP BY col1, col2 WITH ROLLUP");
}
+
+#[test]
+fn parse_is_distinct_from_json_arrow_precedence() {
+ // MySQL's `->` binds tighter than `IS [NOT] DISTINCT FROM`, so the JSON
+ // extraction must stay inside the right operand.
+ assert_eq!(
+ Expr::IsDistinctFrom(
+ Box::new(Expr::Identifier(Ident::new("a"))),
+ Box::new(Expr::BinaryOp {
+ left: Box::new(Expr::Identifier(Ident::new("b"))),
+ op: BinaryOperator::Arrow,
+ right: Box::new(Expr::Value(
+ Value::SingleQuotedString("k".into()).with_empty_span()
+ )),
+ }),
+ ),
+ mysql().verified_expr("a IS DISTINCT FROM b -> 'k'")
+ );
Review Comment:
Done, with the `->>` case using `IS NOT DISTINCT FROM` so both keyword forms
are covered.
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