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-rw-r--r--sql/item.cc21
1 files changed, 19 insertions, 2 deletions
diff --git a/sql/item.cc b/sql/item.cc
index c423f17f52b..dcedfcb6d84 100644
--- a/sql/item.cc
+++ b/sql/item.cc
@@ -1791,9 +1791,10 @@ void Item_ident::print(String *str)
}
}
- if (!table_name || !field_name)
+ if (!table_name || !field_name || !field_name[0])
{
- const char *nm= field_name ? field_name : name ? name : "tmp_field";
+ const char *nm= (field_name && field_name[0]) ?
+ field_name : name ? name : "tmp_field";
append_identifier(thd, str, nm, (uint) strlen(nm));
return;
}
@@ -5002,6 +5003,22 @@ Item *Item_field::update_value_transformer(byte *select_arg)
}
+void Item_field::print(String *str)
+{
+ if (field && field->table->const_table)
+ {
+ char buff[MAX_FIELD_WIDTH];
+ String tmp(buff,sizeof(buff),str->charset());
+ field->val_str(&tmp);
+ str->append('\'');
+ str->append(tmp);
+ str->append('\'');
+ return;
+ }
+ Item_ident::print(str);
+}
+
+
Item_ref::Item_ref(Name_resolution_context *context_arg,
Item **item, const char *table_name_arg,
const char *field_name_arg,