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92 lines
2.8 KiB
Python
92 lines
2.8 KiB
Python
#coding:utf-8
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"""
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ID: issue-8020
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ISSUE: https://github.com/FirebirdSQL/firebird/issues/8020
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TITLE: AV when both function and dependent table are dropped in the same transaction
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DESCRIPTION:
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NOTES:
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[12.03.2024] pzotov
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1. Crash occured only when connection is done via TCP protocol.
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2. Another bug currently *remains* in FB 6.x if DROP-statements are in DSQL form, i.e are not 'enclosed' in PSQL and begin/end blocks:
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==========
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Statement failed, SQLSTATE = 39000
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unsuccessful metadata update
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-DROP TABLE T_FN failed
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-invalid request BLR at offset 1
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-function F is not defined
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==========
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See https://github.com/FirebirdSQL/firebird/issues/8021 (currently not fixed).
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Because of this, it was decided to run DROP statements within PSQL code.
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3. Test checks whether MON$SERVER_PID remains the same after execution of DROP statements. In case of crash this is not so.
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Confirmed bug on 6.0.0.268
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Checked on 6.0.0.269
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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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expected_stdout = """
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IS_SERVER_PID_THE_SAME <true>
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Statement failed, SQLSTATE = 38000
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unsuccessful metadata update
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-cannot delete
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-Function F
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-there are 1 dependencies
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"""
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act = python_act('db')
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@pytest.mark.version('>=6.0')
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def test_1(act: Action):
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test_script = f"""
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set list on;
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set term ^;
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create function f(x int)
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returns int
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as
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begin
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return x;
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end
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^
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create table t_fn (x int, fx computed by (f(x)))
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^
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commit
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^
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set term ;^
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commit;
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connect '{act.db.dsn}' user {act.db.user} password '{act.db.password}';
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set autoddl off;
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set bail on;
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commit;
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set term ^;
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execute block returns(is_server_pid_the_same boolean) as
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declare v_server_pid_init int;
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declare v_server_pid_curr int;
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begin
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select mon$server_pid from mon$attachments where mon$attachment_id = current_connection into v_server_pid_init;
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begin
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execute statement 'drop function f';
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execute statement 'drop table t_fn';
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when any do
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begin
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end
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end
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select mon$server_pid from mon$attachments where mon$attachment_id = current_connection into v_server_pid_curr;
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is_server_pid_the_same = (v_server_pid_init = v_server_pid_curr);
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suspend;
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end
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^
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set term ;^
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commit;
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"""
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act.expected_stdout = expected_stdout
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act.isql(switches=['-q'], input = test_script, combine_output = True)
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assert act.clean_stdout == act.clean_expected_stdout
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