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62 lines
1.6 KiB
Python
62 lines
1.6 KiB
Python
#coding:utf-8
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"""
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ID: issue-4780
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ISSUE: 4780
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TITLE: Expressions containing some built-in functions may be badly optimized
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DESCRIPTION:
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JIRA: CORE-4460
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FBTEST: bugs.core_4460
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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 planonly;
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select * from (
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select rdb$relation_name from rdb$relations
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union
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select rdb$field_name from rdb$fields
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) as dt (name) where dt.name=''
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;
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select * from (
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select rdb$relation_name from rdb$relations
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union
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select rdb$field_name from rdb$fields
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) as dt (name) where dt.name = left('', 0)
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;
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select * from (
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select rdb$relation_name from rdb$relations
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union
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select rdb$field_name from rdb$fields
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) as dt (name) where dt.name = minvalue('', '')
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;
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select * from (
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select rdb$relation_name from rdb$relations
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union
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select rdb$field_name from rdb$fields
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) as dt (name) where dt.name = rpad('', 0, '')
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;
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"""
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act = isql_act('db', test_script, substitutions=[('RDB\\$INDEX_[0-9]+', 'RDB\\$INDEX_')])
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expected_stdout = """
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PLAN SORT (DT RDB$RELATIONS INDEX (RDB$INDEX_0), DT RDB$FIELDS INDEX (RDB$INDEX_2))
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PLAN SORT (DT RDB$RELATIONS INDEX (RDB$INDEX_0), DT RDB$FIELDS INDEX (RDB$INDEX_2))
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PLAN SORT (DT RDB$RELATIONS INDEX (RDB$INDEX_0), DT RDB$FIELDS INDEX (RDB$INDEX_2))
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PLAN SORT (DT RDB$RELATIONS INDEX (RDB$INDEX_0), DT RDB$FIELDS INDEX (RDB$INDEX_2))
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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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