Files
impala/tests/query_test/test_aggregation.py
Ippokratis Pandis c2d07908c9 Moving the distinct tests to test_aggregation
The distinct tests exercise the aggregation node codepaths. This patch moves the
distinct tests to test_aggregation, so that running this test will cover most of the
aggregation code.

Change-Id: Icbe04c51a91e3fda057439a83fca3e61a3890e71
Reviewed-on: http://gerrit.sjc.cloudera.com:8080/5868
Reviewed-by: Ishaan Joshi <ishaan@cloudera.com>
Tested-by: jenkins
2015-01-28 15:31:33 -08:00

116 lines
4.7 KiB
Python
Executable File

#!/usr/bin/env python
# Copyright (c) 2012 Cloudera, Inc. All rights reserved.
# Validates all aggregate functions across all datatypes
#
import logging
import pytest
from tests.common.test_vector import *
from tests.common.impala_test_suite import ImpalaTestSuite
from tests.common.test_dimensions import create_exec_option_dimension
from tests.common.test_dimensions import create_uncompressed_text_dimension
from tests.util.test_file_parser import QueryTestSectionReader
agg_functions = ['sum', 'count', 'min', 'max', 'avg']
data_types = ['int', 'bool', 'double', 'bigint', 'tinyint',
'smallint', 'float', 'timestamp']
result_lut = {
# TODO: Add verification for other types
'sum-tinyint': 45000, 'avg-tinyint': 5, 'count-tinyint': 9000,
'min-tinyint': 1, 'max-tinyint': 9,
'sum-smallint': 495000, 'avg-smallint': 50, 'count-smallint': 9900,
'min-smallint': 1, 'max-smallint': 99,
'sum-int': 4995000, 'avg-int': 500, 'count-int': 9990,
'min-int': 1, 'max-int': 999,
'sum-bigint': 49950000, 'avg-bigint': 5000, 'count-bigint': 9990,
'min-bigint': 10, 'max-bigint': 9990,
}
class TestAggregation(ImpalaTestSuite):
@classmethod
def get_workload(self):
return 'functional-query'
@classmethod
def add_test_dimensions(cls):
super(TestAggregation, cls).add_test_dimensions()
# Add two more dimensions
cls.TestMatrix.add_dimension(TestDimension('agg_func', *agg_functions))
cls.TestMatrix.add_dimension(TestDimension('data_type', *data_types))
cls.TestMatrix.add_constraint(lambda v: cls.is_valid_vector(v))
@classmethod
def is_valid_vector(cls, vector):
data_type, agg_func = vector.get_value('data_type'), vector.get_value('agg_func')
file_format = vector.get_value('table_format').file_format
if file_format not in ['parquet']: return False
if cls.exploration_strategy() == 'core':
# Reduce execution time when exploration strategy is 'core'
if vector.get_value('exec_option')['batch_size'] != 0: return False
# Avro doesn't have timestamp type
if file_format == 'avro' and data_type == 'timestamp':
return False
elif agg_func not in ['min', 'max', 'count'] and data_type == 'bool':
return False
elif agg_func == 'sum' and data_type == 'timestamp':
return False
return True
def test_aggregation(self, vector):
data_type, agg_func = (vector.get_value('data_type'), vector.get_value('agg_func'))
query = 'select %s(%s_col) from alltypesagg where day is not null' % (agg_func,
data_type)
result = self.execute_scalar(query, vector.get_value('exec_option'),
table_format=vector.get_value('table_format'))
if 'int' in data_type:
assert result_lut['%s-%s' % (agg_func, data_type)] == int(result)
# AVG
if vector.get_value('data_type') == 'timestamp' and\
vector.get_value('agg_func') == 'avg':
return
query = 'select %s(DISTINCT(%s_col)) from alltypesagg where day is not null' % (
agg_func, data_type)
result = self.execute_scalar(query, vector.get_value('exec_option'))
class TestAggregationQueries(ImpalaTestSuite):
"""Run the aggregation test suite, with codegen enabled and disabled, to exercise our
non-codegen code"""
@classmethod
def get_workload(self):
return 'functional-query'
@classmethod
def add_test_dimensions(cls):
super(TestAggregationQueries, cls).add_test_dimensions()
cls.TestMatrix.add_dimension(
create_exec_option_dimension(disable_codegen_options=[False, True]))
if cls.exploration_strategy() == 'core':
cls.TestMatrix.add_dimension(create_uncompressed_text_dimension(cls.get_workload()))
@pytest.mark.execute_serially
def test_non_codegen_tinyint_grouping(self, vector):
# Regression for IMPALA-901. The test includes an INSERT statement, so can only be run
# on INSERT-able formats - text only in this case, since the bug doesn't depend on the
# file format.
if vector.get_value('table_format').file_format == 'text' \
and vector.get_value('table_format').compression_codec == 'none':
self.run_test_case('QueryTest/aggregation_no_codegen_only', vector)
def test_aggregation(self, vector):
if vector.get_value('table_format').file_format == 'hbase':
pytest.xfail(reason="IMPALA-283 - select count(*) produces inconsistent results")
self.run_test_case('QueryTest/aggregation', vector)
def test_distinct(self, vector):
if vector.get_value('table_format').file_format == 'hbase':
pytest.xfail("HBase returns columns in alphabetical order for select distinct *, "
"making the result verication to fail.")
self.run_test_case('QueryTest/distinct', vector)