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86 lines
2.6 KiB
Python
86 lines
2.6 KiB
Python
#coding:utf-8
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#
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# id: bugs.core_0847
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# title: computed field can't be changed to non-computed using 'alter table alter column type xy'
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# decription:
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# tracker_id: CORE-847
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# min_versions: []
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# versions: 3.0
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# qmid: bugs.core_847
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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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recreate table t (
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f1 varchar(10),
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f2 varchar(10),
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cf computed by (f1 || ' - ' || f2)
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);
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insert into t (f1,f2) values ('0123456789','abcdefghij');
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commit;
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"""
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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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set blob off;
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set list on;
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select f1,f2,cf as cf_before_altering from t;
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select b.rdb$field_name field_name, cast(a.rdb$computed_source as varchar(80)) computed_source_before_altering
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from rdb$fields a
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join rdb$relation_fields b on a.rdb$field_name = b.rdb$field_source
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where b.rdb$field_name = upper('CF');
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alter table t alter cf type varchar(30);
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commit;
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select f1,f2,cf as cf_after_altering from t;
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select b.rdb$field_name field_name, cast(a.rdb$computed_source as varchar(80)) computed_source_after_altering
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from rdb$fields a
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join rdb$relation_fields b on a.rdb$field_name = b.rdb$field_source
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where b.rdb$field_name = upper('CF');
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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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F1 0123456789
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F2 abcdefghij
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CF_BEFORE_ALTERING 0123456789 - abcdefghij
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FIELD_NAME CF
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COMPUTED_SOURCE_BEFORE_ALTERING (f1 || ' - ' || f2)
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F1 0123456789
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F2 abcdefghij
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CF_AFTER_ALTERING 0123456789 - abcdefghij
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FIELD_NAME CF
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COMPUTED_SOURCE_AFTER_ALTERING (f1 || ' - ' || f2)
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"""
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expected_stderr_1 = """
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Statement failed, SQLSTATE = 42000
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unsuccessful metadata update
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-ALTER TABLE T failed
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-Cannot add or remove COMPUTED from column CF
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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.expected_stderr = expected_stderr_1
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act_1.execute()
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assert act_1.clean_expected_stderr == act_1.clean_stderr
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assert act_1.clean_expected_stdout == act_1.clean_stdout
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