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#!/usr/bin/env python
#
# Public Domain 2014-2016 MongoDB, Inc.
# Public Domain 2008-2014 WiredTiger, Inc.
#
# This is free and unencumbered software released into the public domain.
#
# Anyone is free to copy, modify, publish, use, compile, sell, or
# distribute this software, either in source code form or as a compiled
# binary, for any purpose, commercial or non-commercial, and by any
# means.
#
# In jurisdictions that recognize copyright laws, the author or authors
# of this software dedicate any and all copyright interest in the
# software to the public domain. We make this dedication for the benefit
# of the public at large and to the detriment of our heirs and
# successors. We intend this dedication to be an overt act of
# relinquishment in perpetuity of all present and future rights to this
# software under copyright law.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
import os
import wiredtiger, wttest, run
from wtscenario import make_scenarios
# test_schema04.py
# Test indices with duplicates
class test_schema04(wttest.WiredTigerTestCase):
"""
Test indices with duplicates.
Our set of rows looks like a multiplication table:
row 0: [ 0, 0, 0, 0, 0, 0 ]
row 1: [ 0, 1, 2, 3, 4, 5 ]
row 2: [ 0, 2, 4, 6, 8, 10 ]
with the twist that entries are mod 100. So, looking further:
row 31: [ 0, 31, 62, 93, 24, 55 ]
Each column is placed into its own index. The mod twist,
as well as the 0th column, guarantees we'll have some duplicates.
"""
nentries = 100
scenarios = make_scenarios([
('index-before', { 'create_index' : 0 }),
('index-during', { 'create_index' : 1 }),
('index-after', { 'create_index' : 2 }),
])
def create_indices(self):
# Create 6 index files, each with a column from the main table
for i in range(0, 6):
self.session.create("index:schema04:x" + str(i),
"key_format=i,columns=(v" + str(i) + "),")
# We split the population into two phases
# (in anticipation of future tests that create
# indices between the two population steps).
def populate(self, phase):
cursor = self.session.open_cursor('table:schema04', None, None)
if phase == 0:
range_from = 0
range_to = self.nentries / 2
else:
range_from = self.nentries / 2
range_to = self.nentries
for i in range(range_from, range_to):
# e.g. element 31 is '0,31,62,93,24,55'
cursor.set_key(i)
cursor.set_value(
(i*0)%100, (i*1)%100, (i*2)%100,
(i*3)%100, (i*4)%100, (i*5)%100)
cursor.insert()
cursor.close()
def check_entries(self):
cursor = self.session.open_cursor('table:schema04', None, None)
icursor = []
for i in range(0, 6):
icursor.append(self.session.open_cursor('index:schema04:x' + str(i),
None, None))
i = 0
for kv in cursor:
# Check main table
expect = [(i*j)%100 for j in range(0, 6)]
primkey = kv.pop(0)
self.assertEqual(i, primkey)
self.assertEqual(kv, expect)
for j in range(0, 6):
self.assertEqual((i*j)%100, kv[j])
for idx in range(0, 6):
c = icursor[idx]
indexkey = (i*idx)%100
c.set_key(indexkey)
self.assertEqual(c.search(), 0)
value = c.get_value()
while value != expect and value[idx] == expect[idx]:
c.next()
value = c.get_value()
self.assertEqual(value, expect)
i += 1
self.assertEqual(self.nentries, i)
def test_index(self):
self.session.create("table:schema04",
"key_format=i,value_format=iiiiii,"
"columns=(primarykey,v0,v1,v2,v3,v4,v5)")
if self.create_index == 0:
self.create_indices()
self.populate(0)
if self.create_index == 1:
self.create_indices()
self.populate(1)
if self.create_index == 2:
self.create_indices()
self.check_entries()
if __name__ == '__main__':
wttest.run()
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