fix literal bug

Co-authored-by: obdev <obdev@oceanbase.com>
2023-01-28 13:57:29 +08:00
parent 9484175163
commit df5bfcaa49
1 changed files with 2 additions and 1 deletions
--- a/src/sql/engine/expr/ob_expr_res_type.h
+++ b/src/sql/engine/expr/ob_expr_res_type.h
@ -210,7 +210,8 @@ public:
  }

  OB_INLINE bool is_column() const { return !is_literal(); }
-  OB_INLINE bool is_literal() const { return get_param().get_type() == get_type(); }
+  OB_INLINE bool is_literal() const { return get_param().get_type() == get_type()
+                                             && get_param().get_collation_type() == get_collation_type(); }
  OB_INLINE bool is_null() const { return common::ObNullType == get_type(); }
  OB_INLINE bool is_mysql_question_mark_type() const
  { return is_varbinary() && 0 == get_length(); }