| UR documentation | Contained in the UR distribution. |
UR::DataSource::RDBMS::UniqueConstraintColumn - Metadata about a data source's unique constraints
This class represents instances of unique constraints in a data source. They are maintained by 'ur update classes' and stored in the namespace's MetaDB.
Multi-column unique constraints are represented by instances having the same table_name and constraint_name, but different column_names.
| UR documentation | Contained in the UR distribution. |
use strict; use warnings; package UR::DataSource::RDBMS::UniqueConstraintColumn; use UR::Object::Type; UR::Object::Type->define( class_name => 'UR::DataSource::RDBMS::UniqueConstraintColumn', is => ['UR::DataSource::RDBMS::Entity'], english_name => 'dd_unique_constraint_column', dsmap => 'dd_unique_constraint_column', id_properties => [qw/data_source owner table_name constraint_name column_name/], properties => [ 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, sql => 'owner', is_optional => 1 }, table_name => { type => 'varchar', len => undef, sql => 'table_name' }, constraint_name => { type => 'varchar', len => undef, sql => 'constraint_name' }, column_name => { type => 'varchar', len => undef, sql => 'column_name' }, ], data_source => 'UR::DataSource::Meta', ); 1;