Commit e60daecc authored by bar@mysql.com's avatar bar@mysql.com

Bug#9425 A user variable doesn't always have implicit coercibility

Coercibility fixes for numeric types and not defined values were done.
parent 06bcfe88
......@@ -193,3 +193,10 @@ set @var= NULL ;
select FIELD( @var,'1it','Hit') as my_column;
my_column
0
select @v, coercibility(@v);
@v coercibility(@v)
NULL 2
set @v1=null, @v2=1, @v3=1.1, @v4=now();
select coercibility(@v1),coercibility(@v2),coercibility(@v3),coercibility(@v4);
coercibility(@v1) coercibility(@v2) coercibility(@v3) coercibility(@v4)
2 2 2 2
......@@ -122,3 +122,10 @@ drop table t1;
#
set @var= NULL ;
select FIELD( @var,'1it','Hit') as my_column;
#
# Bug#9425 A user variable doesn't always have implicit coercibility
#
select @v, coercibility(@v);
set @v1=null, @v2=1, @v3=1.1, @v4=now();
select coercibility(@v1),coercibility(@v2),coercibility(@v3),coercibility(@v4);
......@@ -2634,20 +2634,20 @@ Item_func_set_user_var::update()
case REAL_RESULT:
{
res= update_hash((void*) &save_result.vreal,sizeof(save_result.vreal),
REAL_RESULT, &my_charset_bin, DERIVATION_NONE);
REAL_RESULT, &my_charset_bin, DERIVATION_IMPLICIT);
break;
}
case INT_RESULT:
{
res= update_hash((void*) &save_result.vint, sizeof(save_result.vint),
INT_RESULT, &my_charset_bin, DERIVATION_NONE);
INT_RESULT, &my_charset_bin, DERIVATION_IMPLICIT);
break;
}
case STRING_RESULT:
{
if (!save_result.vstr) // Null value
res= update_hash((void*) 0, 0, STRING_RESULT, &my_charset_bin,
DERIVATION_NONE);
DERIVATION_IMPLICIT);
else
res= update_hash((void*) save_result.vstr->ptr(),
save_result.vstr->length(), STRING_RESULT,
......@@ -2870,7 +2870,10 @@ void Item_func_get_user_var::fix_length_and_dec()
}
}
else
{
collation.set(&my_charset_bin, DERIVATION_IMPLICIT);
null_value= 1;
}
if (error)
thd->fatal_error();
......
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