jspg cleanup

src/merger/mod.rs

@@ -744,10 +744,6 @@ impl Merger {
       return Ok(None);
     }
 
-    // An OR across the hierarchy join is un-indexable — it forces a full scan
-    // of the subtype table on every child merge. UNION lets each arm use its
-    // own index (pk for the id arm, the lk_ unique index for the lookup arm)
-    // and still dedups, so TOO_MANY_LOOKUP_ROWS semantics are preserved.
     let final_sql = if where_parts.len() == 1 {
       format!("{} WHERE {}", fetch_sql_template, where_parts[0])
     } else {