def testQueryOrderByWithOffset(self):
offset = 4
num_get = 8
# test order by primary index field with offset
statement = ('DECLARE $offset INTEGER; SELECT fld_str FROM ' +
table_name + ' ORDER BY fld_sid, fld_id OFFSET $offset')
prepare_request = PrepareRequest().set_statement(statement)
prepare_result = self.handle.prepare(prepare_request)
prepared_statement = prepare_result.get_prepared_statement()
prepared_statement.set_variable('$offset', offset)
query_request = QueryRequest().set_prepared_statement(
prepared_statement)
count = 0
while True:
count += 1
result = self.handle.query(query_request)
records = result.get_results()
if query_request.is_done():
self.check_query_result(result, num_get, rec=records)
for idx in range(num_get):
self.assertEqual(
records[idx], {
'fld_str':
'{"name": u' + str(num_get - idx - 1).zfill(2) +
'}'
})
self.check_cost(result, 0, 0, 0, 0)
break
else:
self.check_query_result(result, 0, True, records)
self.assertEqual(records, [])
self.check_cost(result, 0, 0, 0, 0, True)
self.assertEqual(count, 2)
# test order by secondary index field with offset
statement = ('DECLARE $offset INTEGER; SELECT fld_str FROM ' +
table_name + ' ORDER BY fld_str OFFSET $offset')
prepare_request = PrepareRequest().set_statement(statement)
prepare_result = self.handle.prepare(prepare_request)
prepared_statement = prepare_result.get_prepared_statement()
prepared_statement.set_variable('$offset', offset)
query_request = QueryRequest().set_prepared_statement(
prepared_statement)
while True:
result = self.handle.query(query_request)
records = result.get_results()
if query_request.is_done():
self.check_query_result(result, num_get, rec=records)
for idx in range(num_get):
self.assertEqual(records[idx], {
'fld_str':
'{"name": u' + str(offset + idx).zfill(2) + '}'
})
self.check_cost(result, 0, 0, 0, 0)
break
else:
self.check_query_result(result, 0, True, records)
self.assertEqual(records, [])
self.check_cost(result, 0, 0, 0, 0, True)
def testQueryFuncSumGroupBy(self):
num_records = 12
num_sids = 2
# test sum function
statement = ('SELECT sum(fld_double) FROM ' + table_name)
query_request = QueryRequest().set_statement(statement)
result = self.handle.query(query_request)
records = self.check_query_result(result, 1)
self.assertEqual(records[0], {'Column_1': 3.1415 * num_records})
self.check_cost(result, prepare_cost, prepare_cost, 0, 0, True)
# test sum function group by primary index field
statement = ('SELECT sum(fld_double) FROM ' + table_name +
' GROUP BY fld_sid')
query_request = QueryRequest().set_statement(statement)
count = 0
while True:
count += 1
result = self.handle.query(query_request)
records = result.get_results()
if query_request.is_done():
self.check_query_result(result, num_sids, rec=records)
for idx in range(num_sids):
self.assertEqual(
records[idx],
{'Column_1': 3.1415 * (num_records // num_sids)})
self.check_cost(result, 0, 0, 0, 0)
break
else:
self.check_query_result(result, 0, True, records)
self.assertEqual(records, [])
self.check_cost(result, 0, 0, 0, 0, True)
self.assertEqual(count, 2)
# test sum function group by secondary index field
statement = ('SELECT sum(fld_double) FROM ' + table_name +
' GROUP BY fld_bool')
query_request = QueryRequest().set_statement(statement)
while True:
result = self.handle.query(query_request)
records = result.get_results()
if query_request.is_done():
self.check_query_result(result, num_sids, rec=records)
for idx in range(num_sids):
self.assertEqual(
records[idx],
{'Column_1': 3.1415 * (num_records // num_sids)})
self.check_cost(result, 0, 0, 0, 0)
break
else:
self.check_query_result(result, 0, True, records)
self.assertEqual(records, [])
self.check_cost(result, 0, 0, 0, 0, True)
def testQueryOrderByWithLimit(self):
num_records = 12
limit = 10
# test order by primary index field with limit
statement = ('SELECT fld_str FROM ' + table_name +
' ORDER BY fld_sid, fld_id LIMIT 10')
query_request = QueryRequest().set_statement(statement)
count = 0
while True:
count += 1
result = self.handle.query(query_request)
records = result.get_results()
if query_request.is_done():
self.check_query_result(result, limit, rec=records)
for idx in range(limit):
self.assertEqual(
records[idx], {
'fld_str':
'{"name": u' +
str(num_records - idx - 1).zfill(2) + '}'
})
self.check_cost(result, 0, 0, 0, 0)
break
else:
self.check_query_result(result, 0, True, records)
self.assertEqual(records, [])
self.check_cost(result, 0, 0, 0, 0, True)
self.assertEqual(count, 2)
# test order by secondary index field with limit
statement = ('SELECT fld_str FROM ' + table_name +
' ORDER BY fld_str LIMIT 10')
query_request = QueryRequest().set_statement(statement)
while True:
result = self.handle.query(query_request)
records = result.get_results()
if query_request.is_done():
self.check_query_result(result, limit, rec=records)
for idx in range(limit):
self.assertEqual(records[idx], {
'fld_str':
'{"name": u' + str(idx).zfill(2) + '}'
})
self.check_cost(result, 0, 0, 0, 0)
break
else:
self.check_query_result(result, 0, True, records)
self.assertEqual(records, [])
self.check_cost(result, 0, 0, 0, 0, True)
def setUp(self):
TestBase.set_up(self)
self.shardkeys = [0, 1]
ids = [0, 1, 2, 3, 4, 5]
write_multiple_request = WriteMultipleRequest()
for sk in self.shardkeys:
for i in ids:
row = {'fld_sid': sk, 'fld_id': i, 'fld_long': 2147483648,
'fld_float': 3.1414999961853027, 'fld_double': 3.1415,
'fld_bool': True,
'fld_str': '{"name": u1, "phone": null}',
'fld_bin': bytearray(pack('>i', 4)),
'fld_time': datetime.now(), 'fld_num': Decimal(5),
'fld_json': {'a': '1', 'b': None, 'c': '3'},
'fld_arr': ['a', 'b', 'c'],
'fld_map': {'a': '1', 'b': '2', 'c': '3'},
'fld_rec': {'fld_id': 1, 'fld_bool': False,
'fld_str': None}}
write_multiple_request.add(
PutRequest().set_value(row).set_table_name(table_name),
True)
self.handle.write_multiple(write_multiple_request)
write_multiple_request.clear()
self.key = {'fld_sid': 1}
self.multi_delete_request = MultiDeleteRequest().set_timeout(timeout)
prep_request = PrepareRequest().set_statement(
'SELECT fld_sid, fld_id FROM ' + table_name)
prep_result = self.handle.prepare(prep_request)
self.query_request = QueryRequest().set_prepared_statement(prep_result)
def get_user_id(username):
sql = 'SELECT id FROM fotogal_ntable_users WHERE username = "******" LIMIT 1' % (
username, )
nosql_request = QueryRequest().set_statement(sql)
nosql_result = nosql_handler.query(nosql_request).get_results()
return nosql_result[0]['id']
def testQueryOrderBy(self):
num_records = 12
num_ids = 6
# test order by primary index field
statement = ('SELECT fld_sid, fld_id FROM ' + table_name +
' ORDER BY fld_sid, fld_id')
query_request = QueryRequest().set_statement(statement)
count = 0
while True:
count += 1
result = self.handle.query(query_request)
records = result.get_results()
if query_request.is_done():
self.check_query_result(result, num_records, rec=records)
for idx in range(num_records):
self.assertEqual(
records[idx],
self._expected_row(idx // num_ids, idx % num_ids))
self.check_cost(result, 0, 0, 0, 0)
break
else:
self.check_query_result(result, 0, True, records)
self.assertEqual(records, [])
self.check_cost(result, 0, 0, 0, 0, True)
self.assertEqual(count, 2)
# test order by secondary index field
statement = ('SELECT fld_str FROM ' + table_name +
' ORDER BY fld_str')
query_request = QueryRequest().set_statement(statement)
while True:
result = self.handle.query(query_request)
records = result.get_results()
if query_request.is_done():
self.check_query_result(result, num_records, rec=records)
for idx in range(num_records):
self.assertEqual(records[idx], {
'fld_str':
'{"name": u' + str(idx).zfill(2) + '}'
})
self.check_cost(result, 0, 0, 0, 0)
break
else:
self.check_query_result(result, 0, True, records)
self.assertEqual(records, [])
self.check_cost(result, 0, 0, 0, 0, True)
def setUp(self):
TestBase.set_up(self)
self.handle_config = get_handle_config(tenant_id)
shardkeys = [0, 1]
ids = [0, 1, 2, 3, 4, 5]
write_multiple_request = WriteMultipleRequest()
for sk in shardkeys:
for i in ids:
row = {
'fld_sid': sk,
'fld_id': i,
'fld_long': 2147483648,
'fld_float': 3.1414999961853027,
'fld_double': 3.1415,
'fld_bool': True,
'fld_str': '{"name": u1, "phone": null}',
'fld_bin': bytearray(pack('>i', 4)),
'fld_time': datetime.now(),
'fld_num': Decimal(5),
'fld_json': {
'a': '1',
'b': None,
'c': '3'
},
'fld_arr': ['a', 'b', 'c'],
'fld_map': {
'a': '1',
'b': '2',
'c': '3'
},
'fld_rec': {
'fld_id': 1,
'fld_bool': False,
'fld_str': None
}
}
write_multiple_request.add(
PutRequest().set_value(row).set_table_name(table_name),
True)
self.handle.write_multiple(write_multiple_request)
write_multiple_request.clear()
prepare_statement_update = (
'DECLARE $fld_sid INTEGER; $fld_id INTEGER; UPDATE ' + table_name +
' u SET u.fld_long = u.fld_long + 1 WHERE fld_sid = $fld_sid ' +
'AND fld_id = $fld_id')
prepare_request_update = PrepareRequest().set_statement(
prepare_statement_update)
self.prepare_result_update = self.handle.prepare(
prepare_request_update)
prepare_statement_select = (
'DECLARE $fld_long LONG; SELECT fld_sid, fld_id, fld_long FROM ' +
table_name + ' WHERE fld_long = $fld_long')
prepare_request_select = PrepareRequest().set_statement(
prepare_statement_select)
self.prepare_result_select = self.handle.prepare(
prepare_request_select)
self.query_request = QueryRequest().set_timeout(timeout)
self.get_request = GetRequest().set_table_name(table_name)
def update_user_img_profile(user_id, username, email, profile_img_url):
sql = 'UPDATE fotogal_ntable_users SET profile_image_url = "%s" WHERE id = %d AND username = "******" AND email = "%s"' % (
profile_img_url,
user_id,
username,
email,
)
nosql_request = QueryRequest().set_statement(sql)
nosql_result = nosql_handler.query(nosql_request).get_results()
def testQueryFuncCountGroupBy(self):
num_records = 12
num_sids = 2
# test count function
statement = ('SELECT count(*) FROM ' + table_name)
query_request = QueryRequest().set_statement(statement)
result = self.handle.query(query_request)
records = self.check_query_result(result, 1)
self.assertEqual(records[0], {'Column_1': num_records})
# test count function group by primary index field
statement = ('SELECT count(*) FROM ' + table_name +
' GROUP BY fld_sid')
query_request = QueryRequest().set_statement(statement)
while True:
result = self.handle.query(query_request)
records = result.get_results()
if query_request.is_done():
self.check_query_result(result, num_sids, rec=records)
for idx in range(num_sids):
self.assertEqual(records[idx],
{'Column_1': num_records // num_sids})
break
else:
self.check_query_result(result, 0, True, records)
self.assertEqual(records, [])
# test count function group by secondary index field
statement = ('SELECT count(*) FROM ' + table_name +
' GROUP BY fld_bool')
query_request = QueryRequest().set_statement(statement)
while True:
result = self.handle.query(query_request)
records = result.get_results()
if query_request.is_done():
self.check_query_result(result, num_sids, rec=records)
for idx in range(num_sids):
self.assertEqual(records[idx],
{'Column_1': num_records // num_sids})
break
else:
self.check_query_result(result, 0, True, records)
self.assertEqual(records, [])
def exec_query(self, table=None, sql=None):
"""Execute a SQL Query that return a single result.
"""
nosql_result = []
query_request = QueryRequest()
nosql_request = query_request.set_statement(sql)
query_request.close()
nosql_result = self._nosql_handle.query(query_request)
return nosql_result.get_results()
def setUp(self):
self.set_up()
self.handle_config = get_handle_config(tenant_id)
self.min_time = list()
self.max_time = list()
shardkeys = 2
ids = 6
write_multiple_request = WriteMultipleRequest()
for sk in range(shardkeys):
for i in range(ids):
row = get_row()
if i == 0:
self.min_time.append(row['fld_time'])
elif i == ids - 1:
self.max_time.append(row['fld_time'])
row['fld_sid'] = sk
row['fld_id'] = i
row['fld_bool'] = False if sk == 0 else True
row['fld_str'] = (
'{"name": u' +
str(shardkeys * ids - sk * ids - i - 1).zfill(2) + '}')
row['fld_json']['location']['coordinates'] = ([
23.549 - sk * 0.5 - i, 35.2908 + sk * 0.5 + i
])
write_multiple_request.add(
PutRequest().set_value(row).set_table_name(table_name),
True)
self.handle.write_multiple(write_multiple_request)
write_multiple_request.clear()
prepare_statement_update = (
'DECLARE $fld_sid INTEGER; $fld_id INTEGER; UPDATE ' + table_name +
' u SET u.fld_long = u.fld_long + 1 WHERE fld_sid = $fld_sid ' +
'AND fld_id = $fld_id')
prepare_request_update = PrepareRequest().set_statement(
prepare_statement_update)
self.prepare_result_update = self.handle.prepare(
prepare_request_update)
prepare_statement_select = (
'DECLARE $fld_long LONG; SELECT fld_sid, fld_id, fld_long FROM ' +
table_name + ' WHERE fld_long = $fld_long')
prepare_request_select = PrepareRequest().set_statement(
prepare_statement_select)
self.prepare_result_select = self.handle.prepare(
prepare_request_select)
self.query_request = QueryRequest().set_timeout(timeout)
self.get_request = GetRequest().set_table_name(table_name)
def handler(ctx, data: io.BytesIO = None):
return_citizens = []
try:
provider = SignatureProvider(
tenant_id='Your Tenant OCID',
user_id='Your User OCID',
private_key='location of Pem file',
fingerprint='The fingerprint for your key pair goes here',
pass_phrase='The pass phrase for your key goes here')
compartment = 'Your Compartment Name Goes Here'
config = NoSQLHandleConfig(Regions.US_ASHBURN_1, provider)
config.set_default_compartment(compartment)
logger = logging.getLogger('Citizens')
logger.setLevel(logging.WARNING)
config.set_logger(logger)
handle = NoSQLHandle(config)
table_name = 'Citizens'
## Prepare select statement#
statement = 'select * from ' + table_name
request = PrepareRequest().set_statement(statement)
prepared_result = handle.prepare(request)
## Query, using the prepared statement#
request = QueryRequest().set_prepared_statement(prepared_result)
while True:
result = handle.query(request)
for r in result.get_results():
return_citizens.append(dict(r))
if request.is_done():
break
except (Exception, ValueError) as ex:
logging.getLogger().info('error parsing json payload: ' + str(ex))
logging.getLogger().info("Inside OCI function")
return response.Response(ctx,
response_data=json.dumps(return_citizens),
headers={"Content-Type": "application/json"})
def exec_query_loop(self, table=None, sql=None):
"""Execute a SQL Query that return multiples results.
"""
nosql_result = []
query_request = QueryRequest()
nosql_request = query_request.set_statement(sql)
query_request.close()
while True:
nosql_exec_query = self._nosql_handle.query(query_request)
nosql_result = nosql_exec_query.get_results()
if len(nosql_result) > 0:
break
if nosql_request.is_done():
break
return nosql_result
def setUp(self):
self.set_up()
self.shardkeys = [0, 1]
ids = [0, 1, 2, 3, 4, 5]
write_multiple_request = WriteMultipleRequest()
for sk in self.shardkeys:
for i in ids:
row = get_row()
row['fld_sid'] = sk
row['fld_id'] = i
write_multiple_request.add(
PutRequest().set_value(row).set_table_name(table_name),
True)
self.handle.write_multiple(write_multiple_request)
write_multiple_request.clear()
self.key = {'fld_sid': 1}
self.multi_delete_request = MultiDeleteRequest().set_timeout(timeout)
prep_request = PrepareRequest().set_statement(
'SELECT fld_sid, fld_id FROM ' + table_name)
prep_result = self.handle.prepare(prep_request)
self.query_request = QueryRequest().set_prepared_statement(prep_result)
def testQueryFuncMinMaxGroupBy(self):
num_sids = 2
# test min function
statement = 'SELECT min(fld_time) FROM ' + table_name
query_request = QueryRequest().set_statement(statement)
result = self.handle.query(query_request)
records = self.check_query_result(result, 1)
self.assertEqual(records[0], {'Column_1': self.min_time[0]})
# test max function
statement = 'SELECT max(fld_time) FROM ' + table_name
query_request = QueryRequest().set_statement(statement)
result = self.handle.query(query_request)
records = self.check_query_result(result, 1)
self.assertEqual(records[0], {'Column_1': self.max_time[1]})
# test min function group by primary index field
statement = ('SELECT min(fld_time) FROM ' + table_name +
' GROUP BY fld_sid')
query_request = QueryRequest().set_statement(statement)
while True:
result = self.handle.query(query_request)
records = result.get_results()
if query_request.is_done():
self.check_query_result(result, num_sids, rec=records)
for idx in range(num_sids):
self.assertEqual(
records[idx], {'Column_1': self.min_time[idx]})
break
else:
self.check_query_result(result, 0, True, records)
self.assertEqual(records, [])
# test max function group by primary index field
statement = ('SELECT max(fld_time) FROM ' + table_name +
' GROUP BY fld_sid')
query_request = QueryRequest().set_statement(statement)
while True:
result = self.handle.query(query_request)
records = result.get_results()
if query_request.is_done():
self.check_query_result(result, num_sids, rec=records)
for idx in range(num_sids):
self.assertEqual(
records[idx], {'Column_1': self.max_time[idx]})
break
else:
self.check_query_result(result, 0, True, records)
self.assertEqual(records, [])
# test min function group by secondary index field
statement = ('SELECT min(fld_time) FROM ' + table_name +
' GROUP BY fld_bool ORDER BY fld_bool')
query_request = QueryRequest().set_statement(statement)
while True:
result = self.handle.query(query_request)
records = result.get_results()
if query_request.is_done():
self.check_query_result(result, num_sids, rec=records)
for idx in range(num_sids):
self.assertEqual(
records[idx], {'Column_1': self.min_time[idx]})
break
else:
self.check_query_result(result, 0, True, records)
self.assertEqual(records, [])
# test max function group by secondary index field
statement = ('SELECT max(fld_time) FROM ' + table_name +
' GROUP BY fld_bool ORDER BY fld_bool')
query_request = QueryRequest().set_statement(statement)
while True:
result = self.handle.query(query_request)
records = result.get_results()
if query_request.is_done():
self.check_query_result(result, num_sids, rec=records)
for idx in range(num_sids):
self.assertEqual(
records[idx], {'Column_1': self.max_time[idx]})
break
else:
self.check_query_result(result, 0, True, records)
self.assertEqual(records, [])
def testQueryFuncGeoNear(self):
num_get = 6
longitude = 21.547
latitude = 37.291
# test geo_near function
statement = ('SELECT tb.fld_json.location FROM ' + table_name +
' tb WHERE geo_near(tb.fld_json.location, ' +
'{"type": "point", "coordinates": [' + str(longitude) +
', ' + str(latitude) + ']}, 215000)')
query_request = QueryRequest().set_statement(statement)
result = self.handle.query(query_request)
records = self.check_query_result(result, num_get)
for i in range(1, num_get):
pre = records[i - 1]['location']['coordinates']
curr = records[i]['location']['coordinates']
self.assertLess(abs(pre[0] - longitude), abs(curr[0] - longitude))
self.assertLess(abs(pre[1] - latitude), abs(curr[1] - latitude))
self.check_cost(result, prepare_cost, prepare_cost, 0, 0, True)
# test geo_near function order by primary index field
statement = (
'SELECT fld_str FROM ' + table_name + ' tb WHERE geo_near(' +
'tb.fld_json.location, {"type": "point", "coordinates": [' +
str(longitude) + ', ' + str(latitude) + ']}, 215000) ' +
'ORDER BY fld_sid, fld_id')
query_request = QueryRequest().set_statement(statement)
count = 0
while True:
count += 1
result = self.handle.query(query_request)
records = result.get_results()
if query_request.is_done():
self.check_query_result(result, num_get, rec=records)
name = [10, 9, 8, 4, 3, 2]
for i in range(num_get):
self.assertEqual(records[i], {
'fld_str':
'{"name": u' + str(name[i]).zfill(2) + '}'
})
self.check_cost(result, 0, 0, 0, 0)
break
else:
self.check_query_result(result, 0, True, records)
self.assertEqual(records, [])
self.check_cost(result, 0, 0, 0, 0, True)
self.assertEqual(count, 2)
# test geo_near function order by secondary index field
statement = (
'SELECT fld_str FROM ' + table_name + ' tb WHERE geo_near(' +
'tb.fld_json.location, {"type": "point", "coordinates": [' +
str(longitude) + ', ' + str(latitude) + ']}, 215000) ' +
'ORDER BY fld_str')
query_request = QueryRequest().set_statement(statement)
while True:
result = self.handle.query(query_request)
records = result.get_results()
if query_request.is_done():
self.check_query_result(result, num_get, rec=records)
name = [2, 3, 4, 8, 9, 10]
for i in range(num_get):
self.assertEqual(records[i], {
'fld_str':
'{"name": u' + str(name[i]).zfill(2) + '}'
})
self.check_cost(result, 0, 0, 0, 0)
break
else:
self.check_query_result(result, 0, True, records)
self.assertEqual(records, [])
self.check_cost(result, 0, 0, 0, 0, True)
def main():
handle = None
try:
#
# Create a handle
#
handle = get_handle(tenant_id)
#
# Create a table
#
statement = 'Create table if not exists ' + table_name + '(id integer, \
sid integer, name string, primary key(shard(sid), id))'
print('Creating table: ' + statement)
request = TableRequest().set_statement(statement).set_table_limits(
TableLimits(30, 10, 1))
result = handle.table_request(request)
#
# Table creation can take time, depending on the state of the system.
# If if fails after 40s, re-run the program
#
result.wait_for_state(handle, table_name, State.ACTIVE, 50000, 3000)
print('After create table')
#
# Put a few rows
#
request = PutRequest().set_table_name(table_name)
for i in range(10):
value = {'id': i, 'sid': 0, 'name': 'myname' + str(i)}
request.set_value(value)
handle.put(request)
print('After put of 10 rows')
#
# Get the row
#
request = GetRequest().set_key({
'id': 1,
'sid': 0
}).set_table_name(table_name)
result = handle.get(request)
print('After get: ' + str(result))
#
# Query, using a range
#
statement = 'select * from ' + table_name + ' where id > 2 and id < 8'
request = QueryRequest().set_statement(statement)
result = handle.query(request)
print('Query results for: ' + statement)
for r in result.get_results():
print('\t' + str(r))
#
# Delete the row
#
request = DeleteRequest().set_key({
'id': 1,
'sid': 0
}).set_table_name(table_name)
result = handle.delete(request)
print('After delete: ' + str(result))
#
# Get again to show deletion
#
request = GetRequest().set_key({
'id': 1,
'sid': 0
}).set_table_name(table_name)
result = handle.get(request)
print('After get (should be None): ' + str(result))
#
# Drop the table
#
if drop_table:
request = TableRequest().set_statement('drop table if exists ' +
table_name)
result = handle.table_request(request)
#
# Table drop can take time, depending on the state of the system.
# If this wait fails the table will still probably been dropped
#
result.wait_for_state(handle, table_name, State.DROPPED, 40000,
2000)
print('After drop table')
else:
print('Not dropping table')
print('Example is complete')
except Exception as e:
print(e)
traceback.print_exc()
finally:
# If the handle isn't closed Python will not exit properly
if handle is not None:
handle.close()
# create handle config using a desired region as endpoint and set a
# default compartment.
handle_config = NoSQLHandleConfig(Regions.SA_SAOPAULO_1)
handle_config.set_authorization_provider(at_provider)
handle_config.set_default_compartment('<your-compartment-id>')
# create the handle.
nosql_handle = NoSQLHandle(handle_config)
query = """
SELECT propriedades, valor, frete_gratis FROM produtos
"""
query_request = QueryRequest()
# set ABSOLUTE consistency for read requests.
query_request.set_consistency(Consistency.ABSOLUTE)
query_request.set_statement(query)
while True:
query_result = nosql_handle.query(query_request)
print(query_result)
if query_request.is_done():
break
# free up the resources from handle.
nosql_handle.close()
def main():
handle = None
try:
#
# Create a handle
#
handle = get_handle(tenant_id)
#
# Create a table
#
statement = 'Create table if not exists ' + table_name + '(id integer, \
sid integer, name string, primary key(shard(sid), id))'
print('Creating table: ' + statement)
request = TableRequest().set_statement(statement).set_table_limits(
TableLimits(30, 10, 1))
handle.do_table_request(request, 50000, 3000)
print('After create table')
#
# Put a few rows
#
request = PutRequest().set_table_name(table_name)
for i in range(10):
value = {'id': i, 'sid': 0, 'name': 'myname' + str(i)}
request.set_value(value)
handle.put(request)
print('After put of 10 rows')
#
# Multiple write a few rows
#
request = WriteMultipleRequest()
for i in range(10):
value = {'id': i, 'sid': 0, 'name': 'newname' + str(i)}
request.add(
PutRequest().set_value(value).set_table_name(table_name), True)
result = handle.write_multiple(request)
print('After multiple write: ' + str(result))
#
# Prepare a statement
#
statement = 'select * from ' + table_name + ' where id > 2 and id < 8'
request = PrepareRequest().set_statement(statement)
prepared_result = handle.prepare(request)
print('After prepare the statement: ' + statement)
#
# Query, using the prepared statement
#
request = QueryRequest().set_prepared_statement(prepared_result)
print('Query results for the prepared statement: ')
while True:
result = handle.query(request)
for r in result.get_results():
print('\t' + str(r))
if request.is_done():
break
#
# Multiple delete the rows
#
request = MultiDeleteRequest().set_table_name(table_name).set_key(
{'sid': 0})
result = handle.multi_delete(request)
print('After multiple delete: ' + str(result))
#
# Query again to show deletions, using the prepared statement
#
request = QueryRequest().set_prepared_statement(prepared_result)
print('Query results for the prepared statement (should be no rows): ')
while True:
result = handle.query(request)
for r in result.get_results():
print('\t' + str(r))
if request.is_done():
break
#
# Drop the table
#
if drop_table:
request = TableRequest().set_statement('drop table if exists ' +
table_name)
handle.do_table_request(request, 40000, 2000)
print('After drop table')
else:
print('Not dropping table')
print('Example is complete')
except Exception as e:
print(e)
traceback.print_exc()
finally:
# If the handle isn't closed Python will not exit properly
if handle is not None:
handle.close()
def _do_rate_limited_queries(self, num_seconds, read_limit, max_kb,
single_partition, use_percent,
use_external_limiters):
"""
Runs queries continuously for N seconds.
Verify that the resultant RUs used match the given rate limit.
"""
start_time = int(round(time() * 1000))
end_time = start_time + num_seconds * 1000
read_units_used = 0
rlim = None
wlim = None
if not use_external_limiters:
# Reset internal limiters so they don't have unused units.
self.handle.get_client().reset_rate_limiters(table_name)
else:
rlim = SimpleRateLimiter(read_limit * use_percent / 100.0, 1)
wlim = SimpleRateLimiter(read_limit * use_percent / 100.0, 1)
prep_req = PrepareRequest()
if single_partition:
# Query based on single partition scanning.
fld_id = int(random() * 500)
prep_req.set_statement('SELECT * FROM ' + table_name +
' WHERE id = ' + str(fld_id))
else:
# Query based on all partitions scanning.
prep_req.set_statement('SELECT * FROM ' + table_name +
' WHERE name = "jane"')
prep_res = self.handle.prepare(prep_req)
self.assertTrue(prep_res.get_prepared_statement() is not None,
'Prepare statement failed.')
read_units_used += prep_res.get_read_units()
while True:
"""
We need a 20 second timeout because in some cases this is called
on a table with 500 rows and 50RUs (uses 1000RUs = 20 seconds).
"""
query_req = QueryRequest().set_prepared_statement(
prep_res).set_timeout(20000).set_read_rate_limiter(
rlim).set_write_rate_limiter(wlim)
if max_kb > 0:
# Query with size limit.
query_req.set_max_read_kb(max_kb)
try:
while True:
res = self.handle.query(query_req)
res.get_results()
read_units_used += res.get_read_units()
if query_req.is_done():
break
except ReadThrottlingException:
self.fail('Expected no throttling exceptions, got one.')
except RequestTimeoutException:
# This may happen for very small limit tests.
pass
if int(round(time() * 1000)) >= end_time:
break
num_seconds = (int(round(time() * 1000)) - start_time) / 1000
use_percent /= 100.0
rus = read_units_used / num_seconds
expected_rus = read_limit * use_percent
# For very small expected amounts, just verify within 1 RU.
if (expected_rus < 4
and expected_rus - 1 <= rus <= expected_rus + 1):
return
if rus < expected_rus * 0.6 or rus > expected_rus * 1.5:
self.fail('Queries: Expected around ' + str(expected_rus) +
' RUs, got ' + str(rus))