SQLite: Support << and >> bitwise shift operators

Author: LucaCappelletti94

src/dialect/sqlite.rs

@@ -129,4 +129,8 @@ impl Dialect for SQLiteDialect {
     fn supports_numeric_literal_underscores(&self) -> bool {
         true
     }
+
+    fn supports_bitwise_shift_operators(&self) -> bool {
+        true
+    }
 }

tests/sqlparser_sqlite.rs

@@ -957,6 +957,17 @@ fn parse_pattern_operators_bind_at_like_precedence() {
     }
 }
 
+#[test]
+fn parse_bitwise_shift_operators() {
+    sqlite().verified_stmt("SELECT a << 1 FROM t");
+    sqlite().verified_stmt("SELECT a >> 1 FROM t");
+
+    // A dialect without this support rejects the syntax
+    let res = TestedDialects::new(vec![Box::new(sqlparser::dialect::HiveDialect {})])
+        .parse_sql_statements("SELECT a << 1 FROM t");
+    assert!(res.is_err());
+}
+
 fn sqlite() -> TestedDialects {
     TestedDialects::new(vec![Box::new(SQLiteDialect {})])
 }