mirror of
https://github.com/FirebirdSQL/firebird-qa.git
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156 lines
4.2 KiB
Python
156 lines
4.2 KiB
Python
#coding:utf-8
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"""
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ID: issue-515
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ISSUE: 515
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TITLE: Trigger on view with union receive nulls
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DESCRIPTION:
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JIRA: CORE-188
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FBTEST: bugs.core_0188
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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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set bail on;
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set width ctx_name 30;
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set width ctx_val 10;
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recreate view v_ctx_data as
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select mon$variable_name as ctx_name, mon$variable_value as ctx_val
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from mon$context_variables c
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where mon$attachment_id = current_connection or mon$transaction_id = current_transaction;
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recreate view v_test as select 1 k from rdb$database;
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commit;
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recreate table test_a (id int);
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recreate table test_b (id int);
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commit;
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recreate view v_test(id, row_from_table_b)
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as
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select id, cast(0 as int)
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from test_a a
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where not exists (select * from test_b b where b.id = a.id)
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union all
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select id, cast(1 as int)
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from test_b;
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commit;
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set term ^;
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create or alter procedure sp_zap_context_vars as
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declare ctx_ssn int;
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declare ctx_name varchar(80);
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begin
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for
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select mon$attachment_id, mon$variable_name as ctx_name
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from mon$context_variables c
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where mon$attachment_id = current_connection or mon$transaction_id = current_transaction
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into ctx_ssn, ctx_name
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do
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execute statement
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'rdb$set_context('
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|| iif(ctx_ssn is not null, '''USER_SESSION''', '''USER_TRANSACTION''')
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|| ', '''
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|| ctx_name
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|| ''', null )'
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;
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end
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^
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create trigger v_test_bu for v_test active before update position 0 as
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declare o int;
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begin
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rdb$set_context('USER_SESSION','trigger_sees_old_id', old.id);
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rdb$set_context('USER_SESSION','trigger_sees_old_of_b1', old.row_from_table_b);
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rdb$set_context('USER_SESSION','trigger_sees_new_id', new.id);
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rdb$set_context('USER_SESSION','trigger_sees_new_of_b', new.row_from_table_b);
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if (new.row_from_table_b = 1) then
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begin
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rdb$set_context('USER_SESSION','trigger_sees_old_of_b2', old.row_from_table_b);
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if (old.row_from_table_b = 0) then
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begin
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rdb$set_context('USER_SESSION','trigger_sees_old_of_b3', old.row_from_table_b);
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execute statement ( 'insert into test_b(id) values(?)') (new.id);
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execute statement ( 'delete from test_a where id = ?' ) (new.id);
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rdb$set_context('USER_SESSION','trigger_DID_its_job', new.id);
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end
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end
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else
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delete from test_b
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where id = old.id;
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end
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^
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set term ;^
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commit;
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insert into test_a(id) values(1);
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commit;
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set list on;
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select * from v_test; -- will return one record based on data in table test_a
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-- must insert row into test_b and remove row with the same id from test_a:
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execute procedure sp_zap_context_vars;
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select * from v_ctx_data;
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update v_test set row_from_table_b = 1 where id = 1;
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commit;
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set count on;
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select * from test_a;
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select * from test_b;
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select * from v_ctx_data;
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"""
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act = isql_act('db', test_script)
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expected_stdout = """
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ID 1
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ROW_FROM_TABLE_B 0
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Records affected: 0
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ID 1
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Records affected: 1
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CTX_NAME trigger_DID_its_job
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CTX_VAL 1
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CTX_NAME trigger_sees_new_id
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CTX_VAL 1
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CTX_NAME trigger_sees_new_of_b
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CTX_VAL 1
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CTX_NAME trigger_sees_old_id
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CTX_VAL 1
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CTX_NAME trigger_sees_old_of_b1
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CTX_VAL 0
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CTX_NAME trigger_sees_old_of_b2
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CTX_VAL 0
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CTX_NAME trigger_sees_old_of_b3
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CTX_VAL 0
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Records affected: 7
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"""
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@pytest.mark.version('>=3.0')
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def test_1(act: Action):
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act.expected_stdout = expected_stdout
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act.execute()
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assert act.clean_stdout == act.clean_expected_stdout
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