class QueryProcessingStage(object):
    """
    Determines till which state SELECT query should be executed.
    """
    FETCH_COLUMNS = 0
    WITH_MERGEABLE_STATE = 1
    COMPLETE = 2

6eed9852b3b6dfc3b83e4fa68d3ed5f14186799e
<mask token>

class QueryProcessingStage(object):
    <mask token>
    <mask token>
    <mask token>
    <mask token>

class QueryProcessingStage(object):
    <mask token>
    FETCH_COLUMNS = 0
    WITH_MERGEABLE_STATE = 1
    COMPLETE = 2

class QueryProcessingStage(object):
    """
    Determines till which state SELECT query should be executed.
    """
    FETCH_COLUMNS = 0
    WITH_MERGEABLE_STATE = 1
    COMPLETE = 2
