• Vadim Zeitlin's avatar
    Add get_dummy_from_{table,clause}() methods · d91c2228
    Vadim Zeitlin authored
    These functions are helpful to allow writing queries not using any
    tables portably, i.e. they basically abstract the difference between
    "select ... from dual" in Oracle and just "select ..." in almost all the
    other backends.
    d91c2228