security-admin/db/sqlserver/patches/029-add-unique-constraint-on-table-x_group.sql

-- Licensed to the Apache Software Foundation (ASF) under one or more
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-- (the "License"); you may not use this file except in compliance with
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--     http://www.apache.org/licenses/LICENSE-2.0
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IF EXISTS(select * from INFORMATION_SCHEMA.columns where table_name = 'x_group' and column_name = 'group_name')
BEGIN
        IF NOT EXISTS(select * from INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE where table_name='x_group' and column_name='group_name' and constraint_name = 'x_group$x_group_UK_group_name')
    BEGIN
            IF NOT EXISTS(select * from INFORMATION_SCHEMA.TABLE_CONSTRAINTS where table_name='x_group' and constraint_name = 'x_group$x_group_UK_group_name' and CONSTRAINT_TYPE='UNIQUE')
            BEGIN
                ALTER TABLE [dbo].[x_group] ALTER COLUMN [group_name] [varchar](767) NOT NULL;
                ALTER TABLE [dbo].[x_group] ADD CONSTRAINT [x_group$x_group_UK_group_name] UNIQUE ([group_name]);
            END
    END
END
GO
IF EXISTS(select * from INFORMATION_SCHEMA.columns where table_name = 'x_group_users' and column_name = 'group_name')
BEGIN
        IF NOT EXISTS(select * from INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE where table_name='x_group_users' and column_name='group_name' and constraint_name = 'x_group_users$x_group_users_UK_uid_gname')
    BEGIN
            IF NOT EXISTS(select * from INFORMATION_SCHEMA.TABLE_CONSTRAINTS where table_name='x_group_users' and constraint_name = 'x_group_users$x_group_users_UK_uid_gname' and CONSTRAINT_TYPE='UNIQUE')
            BEGIN
                ALTER TABLE [dbo].[x_group_users] ALTER COLUMN [group_name] [varchar](767) NOT NULL;
                ALTER TABLE [dbo].[x_group_users] ADD CONSTRAINT [x_group_users$x_group_users_UK_uid_gname] UNIQUE (user_id,group_name);
            END
    END
END
GO
exit