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-rw-r--r--sql/item.cc3
1 files changed, 2 insertions, 1 deletions
diff --git a/sql/item.cc b/sql/item.cc
index a37a61453e8..07d64881eeb 100644
--- a/sql/item.cc
+++ b/sql/item.cc
@@ -1,5 +1,5 @@
/*
- Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
+ Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -8266,6 +8266,7 @@ bool Item_type_holder::join_types(THD *thd, Item *item)
}
if (Field::result_merge_type(fld_type) == DECIMAL_RESULT)
{
+ collation.set_numeric();
decimals= min(max(decimals, item->decimals), DECIMAL_MAX_SCALE);
int item_int_part= item->decimal_int_part();
int item_prec = max(prev_decimal_int_part, item_int_part) + decimals;