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Fixed bug in SUM() with NULL:s

Browse source 
Added logging of warnings for failed connections with ssl.
Fixed bug in symbolic link handling on Windows


include/my_global.h:
  Added replication flags from 4.1
mysql-test/r/func_group.result:
  Added test for SUM(NULL)
mysql-test/t/func_group.test:
  Added test for SUM(NULL)
sql/item_sum.cc:
  Fixed bug in SUM() with NULL:s
sql/item_sum.h:
  Fixed bug in SUM() with NULL:s
sql/mysqld.cc:
  Added option --symbolic-links
  Fixed bug in symbolic link handling on Windows
sql/net_serv.cc:
  Code cleanup
sql/sql_acl.cc:
  Added logging of warnings for failed connections with ssl.
sql/sql_show.cc:
  Changed to use HAVE_REPLICATION instead of EMBEDDED_LIBRARY
This commit is contained in:
unknown 2003-04-15 22:04:16 +03:00
commit 3ac05ea481
9 changed files with 112 additions and 27 deletions
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13
sql/item_sum.cc
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@ -175,12 +175,14 @@ Item_sum_hybrid::fix_fields(THD *thd,TABLE_LIST *tables)
void Item_sum_sum::reset()
{
null_value=0; sum=0.0; Item_sum_sum::add();
null_value=1; sum=0.0; Item_sum_sum::add();
}
bool Item_sum_sum::add()
{
sum+=args[0]->val();
if (!args[0]->null_value)
null_value= 0;
return 0;
}
@ -566,8 +568,10 @@ void Item_sum_sum::reset_field()
{
double nr=args[0]->val(); // Nulls also return 0
float8store(result_field->ptr,nr);
null_value=0;
result_field->set_notnull();
if (args[0]->null_value)
result_field->set_null();
else
result_field->set_notnull();
}
@ -623,7 +627,10 @@ void Item_sum_sum::update_field(int offset)
float8get(old_nr,res+offset);
nr=args[0]->val();
if (!args[0]->null_value)
{
old_nr+=nr;
result_field->set_notnull();
}
float8store(res,old_nr);
}