/usr/lib/python3/dist-packages/sql/aggregate.py is in python3-sql 0.2-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 | #!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright (c) 2011-2013, Cédric Krier
# Copyright (c) 2011-2013, B2CK
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the <organization> nor the
# names of its contributors may be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
from sql import Expression
__all__ = ['Avg', 'BitAnd', 'BitOr', 'BoolAnd', 'BoolOr', 'Count', 'Every',
'Max', 'Min', 'Stddev', 'Sum', 'Variance']
class Aggregate(Expression):
__slots__ = ('expression')
_sql = ''
def __init__(self, expression):
super(Aggregate, self).__init__()
self.expression = expression
def __str__(self):
return '%s(%s)' % (self._sql, self.expression)
@property
def params(self):
return self.expression.params
class Avg(Aggregate):
__slots__ = ()
_sql = 'AVG'
class BitAnd(Aggregate):
__slots__ = ()
_sql = 'BIT_AND'
class BitOr(Aggregate):
__slots__ = ()
_sql = 'BIT_OR'
class BoolAnd(Aggregate):
__slots__ = ()
_sql = 'BOOL_AND'
class BoolOr(Aggregate):
__slots__ = ()
_sql = 'BOOL_OR'
class Count(Aggregate):
__slots__ = ()
_sql = 'COUNT'
class Every(Aggregate):
__slots__ = ()
_sql = 'EVERY'
class Max(Aggregate):
__slots__ = ()
_sql = 'MAX'
class Min(Aggregate):
__slots__ = ()
_sql = 'MIN'
class Stddev(Aggregate):
__slots__ = ()
_sql = 'Stddev'
class Sum(Aggregate):
__slots__ = ()
_sql = 'SUM'
class Variance(Aggregate):
__slots__ = ()
_sql = 'VARIANCE'
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