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60 lines
1.3 KiB
Python
60 lines
1.3 KiB
Python
#coding:utf-8
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#
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# id: bugs.core_4529
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# title: Allow to use index when GROUP BY on field which has DESCENDING index
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# decription:
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# 4.0.0.804: OK, 1.484s. // Before this build plan was: "PLAN SORT (T NATURAL)"
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#
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# tracker_id: CORE-4529
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# min_versions: ['4.0']
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# versions: 4.0
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# qmid: None
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import pytest
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from firebird.qa import db_factory, isql_act, Action
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# version: 4.0
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# resources: None
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substitutions_1 = []
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init_script_1 = """"""
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db_1 = db_factory(sql_dialect=3, init=init_script_1)
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test_script_1 = """
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recreate table t(x int, y int);
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commit;
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insert into t select rand()*5, rand()*5
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from rdb$types;
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commit;
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create DESCENDING index t_x_desc on t(x);
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create DESCENDING index t_c_desc on t computed by( x+y );
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commit;
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set planonly;
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select x,max(y) from t group by x;
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select x,min(y) from t group by x;
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select count(x) from t group by ( x+y );
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"""
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act_1 = isql_act('db_1', test_script_1, substitutions=substitutions_1)
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expected_stdout_1 = """
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PLAN (T ORDER T_X_DESC)
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PLAN (T ORDER T_X_DESC)
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PLAN (T ORDER T_C_DESC)
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"""
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@pytest.mark.version('>=4.0')
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def test_1(act_1: Action):
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act_1.expected_stdout = expected_stdout_1
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act_1.execute()
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assert act_1.clean_expected_stdout == act_1.clean_stdout
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