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from tests.common.impala_test_suite import ImpalaTestSuite
from tests.common.skip import SkipIfCatalogV2
# This test requires that testdata/avro_schema_resolution/create_table.sql has been run
class TestAvroSchemaResolution(ImpalaTestSuite):
def get_workload(self):
return 'functional-query'
def add_test_dimensions(cls):
super(TestAvroSchemaResolution, cls).add_test_dimensions()
# avro/snap is the only table format with a schema_resolution_test table
cls.ImpalaTestMatrix.add_constraint(lambda v:\
v.get_value('table_format').file_format == 'avro' and\
v.get_value('table_format').compression_codec == 'snap')
def test_avro_schema_resolution(self, vector, unique_database):
self.run_test_case('QueryTest/avro-schema-resolution', vector, unique_database)
def test_avro_c_lib_unicode_nulls(self, vector):
"""Test for IMPALA-1136 and IMPALA-2161 and unicode characters in the
schema that were not handled correctly by the Avro C library.
result = self.execute_query("select * from functional_avro_snap.avro_unicode_nulls")
comparison = self.execute_query("select * from functional.liketbl")
# If we were not able to properly parse the Avro file schemas, then the result
# would be empty.
assert len( == len(
for x in range(len(
assert[x] ==[x]
def test_avro_schema_changes(self, vector, unique_database):
"""Test for IMPALA-3314 and IMPALA-3513: Impalad shouldn't crash with stale Avro
metadata. Instead, should provide a meaningful error message.
Test for IMPALA-3092: Impala should be able to query an Avro table after ALTER TABLE
... ADD COLUMN ...
Test for IMPALA-3776: Fix describe formatted when changing Avro schema.
self.run_test_case('QueryTest/avro-schema-changes', vector, unique_database)