feat: Support spaces between field name and value

src/query/query_parser/query_parser.rs

@@ -1790,6 +1790,15 @@ mod test {
         }
     }
 
+    #[test]
+    fn test_space_before_value() {
+        test_parse_query_to_logical_ast_helper(
+            "title: a",
+            r#"Term(field=0, type=Str, "a")"#,
+            false,
+        );
+    }
+
     #[test]
     fn test_escaped_field() {
         let mut schema_builder = Schema::builder();