mirror of
https://github.com/FirebirdSQL/firebird-qa.git
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86 lines
3.3 KiB
Python
86 lines
3.3 KiB
Python
#coding:utf-8
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"""
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ID: issue-4672
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ISSUE: 4672
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TITLE: Support the SQL Standard ALTER SEQUENCE .. RESTART (without WITH clause)
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DESCRIPTION:
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NOTES:
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[18.08.2020]
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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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This is considered as *expected* and is noted in doc/README.incompatibilities.3to4.txt
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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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JIRA: CORE-4350
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FBTEST: bugs.core_4350
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"""
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import pytest
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from firebird.qa import *
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db = db_factory()
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test_script = """
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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 = isql_act('db', test_script, substitutions=[('=.*', ''), ('[ \t]+', ' ')])
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# version: 3.0
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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: Action):
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act.expected_stdout = expected_stdout_1
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act.execute()
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assert act.clean_stdout == act.clean_expected_stdout
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# version: 4.0
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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: Action):
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act.expected_stdout = expected_stdout_2
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act.execute()
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assert act.clean_stdout == act.clean_expected_stdout
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