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91 lines
2.1 KiB
Python
91 lines
2.1 KiB
Python
#coding:utf-8
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"""
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ID: issue-7427
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ISSUE: https://github.com/FirebirdSQL/firebird/pull/7427
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TITLE: Added the ability to change function DETERMINISTIC option without recompile the entire function body
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DESCRIPTION:
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ALTER FUNCTION <name> {DETERMINISTIC | NOT DETERMINISTIC}
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doc/sql.extensions/README.ddl.txt
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NOTES:
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[09.10.2023] pzotov
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1. Test verifies ability to change DETERMINISTIC attribute and actual behaviour of function after this action.
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2. ::: NB ::: Currently one need to make RECONNECT after this change, otherwise behaviour remains unchanged
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(see: https://github.com/FirebirdSQL/firebird/issues/7427#issuecomment-1753095418 ).
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Checked on 6.0.0.76.
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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 list on;
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create sequence g start with 0;
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commit;
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set term ^;
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create function fn_test returns int deterministic
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as
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begin
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return gen_id(g,1);
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end
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^
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commit
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^
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create procedure sp_test returns(curr_gen int) as
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declare n int = 10;
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declare i int;
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begin
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while (n > 0) do
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begin
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i = fn_test();
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n = n - 1;
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end
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curr_gen = gen_id(g,0);
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suspend;
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end
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^
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select p.curr_gen as gen_determ_initial from sp_test p
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^
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commit
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^
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alter sequence g restart with 0
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^
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alter function fn_test not deterministic
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^
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commit
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^
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CONNECT $(DSN)
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^
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select p.curr_gen as gen_non_deterministic from sp_test p
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^
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alter sequence g restart with 0
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^
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alter function fn_test deterministic
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^
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commit
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^
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CONNECT $(DSN)
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^
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select p.curr_gen as gen_determ_returned from sp_test p
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^
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"""
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act = isql_act('db', test_script)
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expected_stdout = """
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GEN_DETERM_INITIAL 0
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GEN_NON_DETERMINISTIC 9
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GEN_DETERM_RETURNED 0
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"""
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@pytest.mark.version('>=6.0')
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def test_1(act: Action):
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act.expected_stdout = expected_stdout
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act.execute(combine_output = True)
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assert act.clean_stdout == act.clean_expected_stdout
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