# this should bring back the result of SELECT SCOPE_IDENTITY() we tacked
# on in _prep_for_execute above
- my ($identity) = $sth->fetchrow_array;
+ my ($identity) = eval { $sth->fetchrow_array };
# SCOPE_IDENTITY failed, but we can do something else
if ( (! $identity) && $self->_identity_method) {
sub last_insert_id { shift->_identity }
+#
+# MSSQL is retarded wrt ordered subselects. One needs to add a TOP 100%
+# to *all* subqueries, do it here.
+#
+sub _select_args_to_query {
+ my $self = shift;
+
+ my ($sql, $prep_bind, @rest) = $self->next::method (@_);
+
+ # see if this is an ordered subquery
+ my $attrs = $_[3];
+ if ( scalar $self->sql_maker->_order_by_chunks ($attrs->{order_by}) ) {
+ $sql =~ s/^ \s* SELECT \s/SELECT TOP 100 PERCENT /xi;
+ }
+
+ return wantarray
+ ? ($sql, $prep_bind, @rest)
+ : \[ "($sql)", @$prep_bind ]
+ ;
+}
+
+
# savepoint syntax is the same as in Sybase ASE
sub _svp_begin {
sub sqlt_type { 'SQLServer' }
-sub _sql_maker_opts {
- my ( $self, $opts ) = @_;
+sub _get_mssql_version {
+ my $self = shift;
+
+ my $data = $self->_get_dbh->selectrow_hashref('xp_msver ProductVersion');
+
+ if ($data->{Character_Value} =~ /^(\d+)\./) {
+ return $1;
+ } else {
+ $self->throw_exception(q{Your ProductVersion's Character_Value is missing or malformed!});
+ }
+}
+
+sub sql_maker {
+ my $self = shift;
+
+ unless ($self->_sql_maker) {
+ unless ($self->{_sql_maker_opts}{limit_dialect}) {
+ my $version = eval { $self->_get_mssql_version; } || 0;
+
+ $self->{_sql_maker_opts} = {
+ limit_dialect => ($version >= 9 ? 'RowNumberOver' : 'Top'),
+ %{$self->{_sql_maker_opts}||{}}
+ };
+ }
- if ( $opts ) {
- $self->{_sql_maker_opts} = { %$opts };
+ my $maker = $self->next::method (@_);
}
- return { limit_dialect => 'Top', %{$self->{_sql_maker_opts}||{}} };
+ return $self->_sql_maker;
}
1;