use strict;
use warnings;
package UR::DataSource::RDBMS::BitmapIndex;
use UR;
our $VERSION = "0.41"; # UR $VERSION;
UR::Object::Type->define(
class_name => 'UR::DataSource::RDBMS::BitmapIndex',
is => ['UR::DataSource::RDBMS::Entity'],
dsmap => 'dd_bitmap_index',
er_role => '',
id_properties => [qw/data_source owner table_name bitmap_index_name/],
properties => [
bitmap_index_name => { type => 'varchar', len => undef, sql => 'bitmap_index_name' },
data_source => { type => 'varchar', len => undef, sql => 'data_source' },
data_source_obj => { type => 'UR::DataSource', id_by => 'data_source'},
namespace => { calculate_from => [ 'data_source'],
calculate => q( (split(/::/,$data_source))[0] ) },
owner => { type => 'varchar', len => undef, is_optional => 1, sql => 'owner' },
table_name => { type => 'varchar', len => undef, sql => 'table_name' },
],
data_source => 'UR::DataSource::Meta',
);
1;
=pod
=head1 NAME
UR::DataSource::RDBMS::BitmapIndex - metadata about a data source's bitmap indexes
=head1 DESCRIPTION
This class represents instances of bitmap indexes in a data source. They are
maintained by 'ur update classes' and stored in the namespace's MetaDB.
The existence of bitmap indexes in a datasource affects SQL generation during
a Context commit. Oracle's implementation requires a table covered by a
bitmap index to be locked while it is being updated.
=cut