[CP] fix CHAR and CONCAT result length bug

2023-01-10 09:08:10 +00:00
parent 9c56a1418b
commit 080ca3a2dd
2 changed files with 4 additions and 5 deletions
--- a/src/sql/engine/expr/ob_expr_concat.cpp
+++ b/src/sql/engine/expr/ob_expr_concat.cpp
@ -208,6 +208,9 @@ int ObExprConcat::calc_result_typeN(ObExprResType &type,
        max_len = OB_MAX_LONGTEXT_LENGTH / 4;
      } else {
        max_len = MIN(OB_MAX_VARCHAR_LENGTH, max_len);
+        if (max_len <= 0) {
+          max_len = OB_MAX_VARCHAR_LENGTH;
+        }
      }
      type.set_length(max_len);
    }