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70 lines
2.5 KiB
Python
70 lines
2.5 KiB
Python
#coding:utf-8
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#
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# id: bugs.core_3672
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# title: computed index by substring function for long columns
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# decription:
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# tracker_id: CORE-3672
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# min_versions: ['3.0']
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# versions: 3.0
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# qmid:
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import pytest
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from firebird.qa import db_factory, isql_act, Action
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# version: 3.0
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# resources: None
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substitutions_1 = []
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init_script_1 = """"""
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db_1 = db_factory(sql_dialect=3, init=init_script_1)
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test_script_1 = """
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recreate table test(
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col1 varchar(8190) character set utf8 collate unicode_ci_ai
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,col2 computed by ( substring(col1 from 1 for 169) )
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,col3 computed by ( substring(trim( col2 from col1 ) from 1 for 169) )
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);
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commit;
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-- Index on UTF8-field which should be collate in CI_AI manner, will contain 6 bytes per one character (hereafter this is 'N').
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-- This mean that maximum length of key for default page_size = 4096 is:
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-- max_key_length = floor( (page_size / 4 - 9) / N ) = 169 characters.
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-- Verify that we CAN do that w/o error:
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create index test_col1_idx_a on test computed by ( substring(col1 from 1 for 169) );
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create index test_col1_idx_b on test computed by ( substring(trim( col2 from col1 ) from 1 for 169) );
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create index test_col2_idx_a on test computed by ( col2 );
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create index test_col2_idx_b on test computed by ( substring(col2 from 1 for 169) );
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create index test_col3_idx_a on test computed by ( col3 );
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create index test_col3_idx_b on test computed by ( substring(col3 from 1 for 169) );
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commit;
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-- Confirmed for 2.5.5: "-key size exceeds implementation restriction"
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show index test_col1_idx_a;
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show index test_col1_idx_b;
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show index test_col2_idx_a;
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show index test_col2_idx_b;
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show index test_col3_idx_a;
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show index test_col3_idx_b;
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"""
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act_1 = isql_act('db_1', test_script_1, substitutions=substitutions_1)
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expected_stdout_1 = """
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TEST_COL1_IDX_A INDEX ON TEST COMPUTED BY ( substring(col1 from 1 for 169) )
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TEST_COL1_IDX_B INDEX ON TEST COMPUTED BY ( substring(trim( col2 from col1 ) from 1 for 169) )
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TEST_COL2_IDX_A INDEX ON TEST COMPUTED BY ( col2 )
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TEST_COL2_IDX_B INDEX ON TEST COMPUTED BY ( substring(col2 from 1 for 169) )
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TEST_COL3_IDX_A INDEX ON TEST COMPUTED BY ( col3 )
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TEST_COL3_IDX_B INDEX ON TEST COMPUTED BY ( substring(col3 from 1 for 169) )
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"""
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@pytest.mark.version('>=3.0')
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def test_1(act_1: Action):
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act_1.expected_stdout = expected_stdout_1
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act_1.execute()
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assert act_1.clean_stdout == act_1.clean_expected_stdout
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