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70 lines
2.0 KiB
Python
70 lines
2.0 KiB
Python
#coding:utf-8
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"""
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ID: issue-6114
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ISSUE: 6114
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TITLE: Very poor "similar to" performance
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DESCRIPTION:
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Quantifier value was increased to 1000, string 'abcd.abc' is used for pattern search.
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NOTES:
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doc\\sql.extensions\\README.similar_to.txt:
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Since FB 4 the repeat factor low/high values could not be greater than 1000.
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JIRA: CORE-5854
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FBTEST: bugs.core_5854
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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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set count on;
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set term ^;
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execute block as
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begin
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rdb$set_context( 'USER_SESSION','DTS_START', cast('now' as timestamp) );
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rdb$set_context( 'USER_SESSION','MAX_THRESHOLD_MS', 100 );
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-- ^
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-- |
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-- #############################
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-- MAX ALLOWED EXECUTION TIME,MS
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-- #############################
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end
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^
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set term ;^
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select iif ('abcd.abc' similar to '[[:ALPHA:].]{1,1000}.ab' ,1,0) result
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from rdb$database
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;
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set count off;
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select
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iif( evaluated_ms <= max_allowed_ms
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,'acceptable'
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,'TOO LONG: ' || evaluated_ms || ' ms - this is more then threshold = ' || max_allowed_ms || ' ms'
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) as duration
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from (
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select
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datediff( millisecond from cast(rdb$get_context( 'USER_SESSION','DTS_START') as timestamp) to current_timestamp ) evaluated_ms
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,cast( rdb$get_context( 'USER_SESSION','MAX_THRESHOLD_MS' ) as int ) as max_allowed_ms
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from rdb$database
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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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RESULT 0
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Records affected: 1
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DURATION acceptable
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"""
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@pytest.mark.version('>=4.0')
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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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