mirror of
https://github.com/FirebirdSQL/firebird-qa.git
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66 lines
1.7 KiB
Python
66 lines
1.7 KiB
Python
#coding:utf-8
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"""
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ID: issue-4983
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ISSUE: 4983
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TITLE: Regression: computed index based on a computed column stores NULL for all its keys
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DESCRIPTION:
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JIRA: CORE-4673
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FBTEST: bugs.core_4673
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"""
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import pytest
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from firebird.qa import *
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init_script = """
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recreate table tc(
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id int primary key
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,x int
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,y int
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,z_expr computed by (x+y)
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,z_noex computed by (y)
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);
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commit;
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insert into tc values( 1, 101, 201 );
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commit;
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create index tc_lpad_z_expr on tc computed by( lpad('' || z_expr , 10, 0) );
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-- Added 2nd COMPUTED_BY index WITHOUT any expression,
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-- see dimitr's issue in the ticket, 02/Feb/15 08:52 AM.
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-- See also several samples (rus):
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-- sql.ru/forum/actualutils.aspx?action=gotomsg&tid=945713&msg=12655568
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create index tc_lpad_z_noex on tc computed by( z_noex );
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commit;
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"""
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db = db_factory(init=init_script)
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test_script = """
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set plan on;
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set list on;
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select count(*) check_cnt from tc where tc.z_noex = 201
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union all
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select count(*) from tc where 0 + tc.z_noex = 201
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union all
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select count(*) cnt from tc where lpad('' || tc.z_expr, 10, 0) between '0000000302' and '0000000302'
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union all
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select count(*) from tc where '' || lpad('' || tc.z_expr, 10, 0) between '0000000302' and '0000000302';
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"""
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act = isql_act('db', test_script)
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expected_stdout = """
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PLAN (TC INDEX (TC_LPAD_Z_NOEX), TC NATURAL, TC INDEX (TC_LPAD_Z_EXPR), TC NATURAL)
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CHECK_CNT 1
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CHECK_CNT 1
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CHECK_CNT 1
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CHECK_CNT 1
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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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