CREATE TABLE `Join1` (
Key Int32,
Fk21 Uint32,
Fk22 String,
Value String,
PRIMARY KEY (Key)
);
DELETE FROM `/Root/Join2` where (Key1 = 1 and Key2 = "") OR Key1 = 3;
<main>:4:80: Error: At tuple, At tuple, At function: KqlDeleteRows
<main>:4:80: Error: Missing key column in input type: Key2, code: 2029