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120 lines
4.8 KiB
Python
120 lines
4.8 KiB
Python
#coding:utf-8
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#
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# id: bugs.core_4350
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# title: Support the SQL Standard ALTER SEQUENCE .. RESTART (without WITH clause)
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# decription:
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# :::::::::::::::::::::::::::::::::::::::: NB ::::::::::::::::::::::::::::::::::::
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# 18.08.2020. FB 4.x has incompatible behaviour with all previous versions since build 4.0.0.2131 (06-aug-2020):
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# statement 'alter sequence <seq_name> restart with 0' changes rdb$generators.rdb$initial_value to -1 thus next call
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# gen_id(<seq_name>,1) will return 0 (ZERO!) rather than 1.
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# See also CORE-6084 and its fix: https://github.com/FirebirdSQL/firebird/commit/23dc0c6297825b2e9006f4d5a2c488702091033d
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# ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
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# This is considered as *expected* and is noted in doc/README.incompatibilities.3to4.txt
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#
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# Because of this, it was decided to make separate section for check results of FB 4.x
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# Checked on 4.0.0.2164, 3.0.7.33356
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#
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# tracker_id: CORE-4350
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# min_versions: ['3.0']
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# versions: 3.0, 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: 3.0
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# resources: None
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substitutions_1 = [('=.*', ''), ('[ \t]+', ' ')]
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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 sequence g1 start with 9223372036854775807 increment by -2147483647;
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recreate sequence g2 start with -9223372036854775808 increment by 2147483647;
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recreate sequence g3 start with 9223372036854775807 increment by 2147483647;
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recreate sequence g4 start with -9223372036854775808 increment by -2147483647;
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commit;
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set list on;
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select next value for g1, next value for g2, next value for g3, next value for g4
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from rdb$database;
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alter sequence g1 restart;
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alter sequence g2 restart;
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alter sequence g3 restart;
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alter sequence g4 restart;
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commit;
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show sequ;
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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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NEXT_VALUE 9223372034707292160
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NEXT_VALUE -9223372034707292161
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NEXT_VALUE -9223372034707292162
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NEXT_VALUE 9223372034707292161
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Generator G1, current value: 9223372036854775807, initial value: 9223372036854775807, increment: -2147483647
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Generator G2, current value: -9223372036854775808, initial value: -9223372036854775808, increment: 2147483647
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Generator G3, current value: 9223372036854775807, initial value: 9223372036854775807, increment: 2147483647
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Generator G4, current value: -9223372036854775808, initial value: -9223372036854775808, increment: -2147483647
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"""
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@pytest.mark.version('>=3.0,<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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# version: 4.0
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# resources: None
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substitutions_2 = [('=.*', ''), ('[ \t]+', ' ')]
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init_script_2 = """"""
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db_2 = db_factory(sql_dialect=3, init=init_script_2)
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test_script_2 = """
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recreate sequence g1 start with 9223372036854775807 increment by -2147483647;
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recreate sequence g2 start with -9223372036854775808 increment by 2147483647;
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recreate sequence g3 start with 9223372036854775807 increment by 2147483647;
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recreate sequence g4 start with -9223372036854775808 increment by -2147483647;
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commit;
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set list on;
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select next value for g1, next value for g2, next value for g3, next value for g4
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from rdb$database;
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alter sequence g1 restart;
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alter sequence g2 restart;
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alter sequence g3 restart;
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alter sequence g4 restart;
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commit;
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show sequ;
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"""
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act_2 = isql_act('db_2', test_script_2, substitutions=substitutions_2)
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expected_stdout_2 = """
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NEXT_VALUE 9223372036854775807
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NEXT_VALUE -9223372036854775808
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NEXT_VALUE 9223372036854775807
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NEXT_VALUE -9223372036854775808
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Generator G1, current value: -9223372034707292162, initial value: 9223372036854775807, increment: -2147483647
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Generator G2, current value: 9223372034707292161, initial value: -9223372036854775808, increment: 2147483647
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Generator G3, current value: 9223372034707292160, initial value: 9223372036854775807, increment: 2147483647
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Generator G4, current value: -9223372034707292161, initial value: -9223372036854775808, increment: -2147483647
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"""
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@pytest.mark.version('>=4.0')
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def test_2(act_2: Action):
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act_2.expected_stdout = expected_stdout_2
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act_2.execute()
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assert act_2.clean_expected_stdout == act_2.clean_stdout
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