test

src/sql/mod.rs

@@ -85,12 +85,16 @@ impl SqlBuilder {
         }
     }
 
-    pub(crate) fn append(&mut self, part: &str) {
+    pub(crate) fn append(&mut self, suffix: &str) {
         let Self::InProgress(parts) = self else {
             return;
         };
 
-        parts.push(Part::Text(part.to_string()));
+        if let Some(Part::Text(text)) = parts.last_mut() {
+            text.push_str(suffix);
+        } else {
+            parts.push(Part::Text(suffix.to_string()));
+        }
     }
 
     pub(crate) fn finish(mut self) -> Result<String> {
@@ -188,6 +192,15 @@ mod tests {
         );
     }
 
+    #[test]
+    fn question_escape() {
+        let sql = SqlBuilder::new("SELECT 1 FROM test WHERE a IN 'a??b'");
+        assert_eq!(
+            sql.finish().unwrap(),
+            r"SELECT 1 FROM test WHERE a IN 'a?b'"
+        );
+    }
+
     #[test]
     fn option_as_null() {
         let mut sql = SqlBuilder::new("SELECT 1 FROM test WHERE a = ?");