a93e4e47bda_heartbeats.py 文件源码

def upgrade():
    '''
    upgrade method
    '''
    create_table('heartbeats',
                 sa.Column('executable', sa.String(512)),
                 sa.Column('hostname', sa.String(128)),
                 sa.Column('pid', sa.Integer(), autoincrement=False),
                 sa.Column('thread_id', sa.BigInteger(), autoincrement=False),
                 sa.Column('thread_name', sa.String(64)),
                 sa.Column('updated_at', sa.DateTime),
                 sa.Column('created_at', sa.DateTime))

    if context.get_context().dialect.name != 'sqlite':
        create_primary_key('heartbeats_pk', 'heartbeats', ['executable', 'hostname', 'pid', 'thread_id'])
        create_index('heartbeats_updated_at', 'heartbeats', ['updated_at'])

        if context.get_context().dialect.name != 'mysql':
            create_check_constraint('heartbeats_created_nn', 'heartbeats', 'created_at is not null')
            create_check_constraint('heartbeats_updated_nn', 'heartbeats', 'updated_at is not null')