Python _literal Exemples

Exemple #1

def _literal(translator, expr):
    try:
        return impala_compiler._literal(translator, expr)
    except NotImplementedError:
        if isinstance(expr, ir.ArrayValue):
            return _array_literal_format(expr)
        raise NotImplementedError(type(expr).__name__)

Exemple #2

Fichier : compiler.py Projet : reshma-katkar/ibis

def _literal(translator, expr):

    if isinstance(expr, ir.NumericValue):
        value = expr.op().value
        if not np.isfinite(value):
            return 'CAST({!r} AS FLOAT64)'.format(str(value))

    # special case literal timestamp, date, and time scalars
    if isinstance(expr.op(), ops.Literal):
        value = expr.op().value
        if isinstance(expr, ir.DateScalar):
            if isinstance(value, datetime.datetime):
                raw_value = value.date()
            else:
                raw_value = value
            return "DATE '{}'".format(raw_value)
        elif isinstance(expr, ir.TimestampScalar):
            return "TIMESTAMP '{}'".format(value)
        elif isinstance(expr, ir.TimeScalar):
            # TODO: define extractors on TimeValue expressions
            return "TIME '{}'".format(value)

    try:
        return impala_compiler._literal(translator, expr)
    except NotImplementedError:
        if isinstance(expr, ir.ArrayValue):
            return _array_literal_format(expr)
        raise NotImplementedError(type(expr).__name__)

Exemple #3

Fichier : compiler.py Projet : cloudera/ibis

def _literal(translator, expr):

    if isinstance(expr, ir.NumericValue):
        value = expr.op().value
        if not np.isfinite(value):
            return 'CAST({!r} AS FLOAT64)'.format(str(value))

    # special case literal timestamp, date, and time scalars
    if isinstance(expr.op(), ops.Literal):
        value = expr.op().value
        if isinstance(expr, ir.DateScalar):
            if isinstance(value, datetime.datetime):
                raw_value = value.date()
            else:
                raw_value = value
            return "DATE '{}'".format(raw_value)
        elif isinstance(expr, ir.TimestampScalar):
            return "TIMESTAMP '{}'".format(value)
        elif isinstance(expr, ir.TimeScalar):
            # TODO: define extractors on TimeValue expressions
            return "TIME '{}'".format(value)

    try:
        return impala_compiler._literal(translator, expr)
    except NotImplementedError:
        if isinstance(expr, ir.ArrayValue):
            return _array_literal_format(expr)
        raise NotImplementedError(type(expr).__name__)

Exemple #4

def _literal(translator, expr):

    if isinstance(expr, ir.NumericValue):
        value = expr.op().value
        if not np.isfinite(value):
            return 'CAST({!r} AS FLOAT64)'.format(str(value))

    try:
        return impala_compiler._literal(translator, expr)
    except NotImplementedError:
        if isinstance(expr, ir.ArrayValue):
            return _array_literal_format(expr)
        raise NotImplementedError(type(expr).__name__)