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54 lines
1.4 KiB
Python
54 lines
1.4 KiB
Python
#coding:utf-8
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#
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# id: bugs.core_3338
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# title: Regression: Code changes disabled support for expression indexes with COALESCE, CASE and DECODE
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# decription:
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# tracker_id: CORE-3338
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# min_versions: ['3.0']
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# versions: 3.0
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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: 3.0
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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(n int); commit;
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insert into t select rand()*100 from rdb$types; commit;
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create index t_n2_coalesce on t computed by ( coalesce(n*2,0) ); commit;
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create index t_n2_decode on t computed by ( decode( mod(n, 3), 0, coalesce(n,0), 1, iif(mod(n,7)=0, 2, 3) ) ); commit;
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-- 2.5 raises:
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-- Statement failed, SQLSTATE = HY000
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-- request synchronization error
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-- (for both variants of followed CREATE INDEX statement)
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set planonly;
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select * from t where coalesce(n*2,0) = 0;
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select * from t where decode( mod(n, 3), 0, coalesce(n,0), 1, iif(mod(n,7)=0, 2, 3) ) = 1;
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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 INDEX (T_N2_COALESCE))
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PLAN (T INDEX (T_N2_DECODE))
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"""
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@pytest.mark.version('>=3.0')
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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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