diff options
Diffstat (limited to 'sql/item_func.cc')
| -rw-r--r-- | sql/item_func.cc | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sql/item_func.cc b/sql/item_func.cc index eaf6113e10e..88f36cf1e98 100644 --- a/sql/item_func.cc +++ b/sql/item_func.cc @@ -581,6 +581,15 @@ void Item_args::propagate_equal_fields(THD *thd, } +Sql_mode_dependency Item_args::value_depends_on_sql_mode_bit_or() const +{ + Sql_mode_dependency res; + for (uint i= 0; i < arg_count; i++) + res|= args[i]->value_depends_on_sql_mode(); + return res; +} + + /** See comments in Item_cond::split_sum_func() */ @@ -1226,6 +1235,13 @@ bool Item_func_minus::fix_length_and_dec() if (Item_func_minus::type_handler()->Item_func_minus_fix_length_and_dec(this)) DBUG_RETURN(TRUE); DBUG_PRINT("info", ("Type: %s", type_handler()->name().ptr())); + m_sql_mode_dependency= Item_func::value_depends_on_sql_mode(); + if (unsigned_flag) + { + m_sql_mode_dependency|= Sql_mode_dependency(0,MODE_NO_UNSIGNED_SUBTRACTION); + if (current_thd->variables.sql_mode & MODE_NO_UNSIGNED_SUBTRACTION) + unsigned_flag= false; + } DBUG_RETURN(FALSE); } |