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6f8b889ae5
used TL_WRITE_CONCURRENT_INSERT though they may update/delete a row. This could cause concurrent SELECTs to see a changing table while the SELECT happens, or if the query was made of a group of SELECTs, some SELECTs would see different versions of the table. And anyway versioning in Maria was so far coded to support only insertions. REPLACE SELECT, INSERT VALUES ON DUPLICATE KEY UPDATE, LOAD DATA REPLACE were ok. mysql-test/r/maria2.result: result. Without the code fix, the assertion added to ha_maria::update_row() would fire twice. mysql-test/t/maria2.test: test when INSERT ON DUPLICATE KEY UPDATE and LOAD DATA CONCURRENT REPLACE do update rows storage/maria/ha_maria.cc: Assert that update_row and delete_row never see TL_WRITE_CONCURRENT_INSERT. INSERT SELECT ON DUPLICATE KEY UPDATE and LOAD DATA CONCURRENT REPLACE must upgrade TL_WRITE_CONCURRENT_INSERT to TL_WRITE because they may update/delete a row.
44 lines
1.3 KiB
Text
44 lines
1.3 KiB
Text
CREATE TABLE t1 (
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line BLOB,
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kind ENUM('po', 'pp', 'rr', 'dr', 'rd', 'ts', 'cl') NOT NULL DEFAULT 'po',
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name VARCHAR(32)
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) transactional=0 row_format=page engine=maria;
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select count(*) from t1;
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count(*)
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810
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delete from t1 limit 1000;
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select count(*) from t1;
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count(*)
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0
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select name from t1;
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name
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check table t1 extended;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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drop table t1;
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create table t1(id int, s char(1), unique(s)) engine=maria;
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insert into t1 values(1,"a") on duplicate key update t1.id=t1.id+1;
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insert into t1 values(1,"a") on duplicate key update t1.id=t1.id+1;
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insert into t1 select 1,"a" on duplicate key update t1.id=t1.id+1;
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select * from t1;
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id s
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3 a
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replace into t1 select 1,"a";
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select * from t1;
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id s
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1 a
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drop table t1;
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create table t1 (pk int primary key, apk int unique, data int) engine=maria;
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insert into t1 values (1, 1, 1), (4, 4, 4), (6, 6, 6);
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load data concurrent infile '../std_data_ln/loaddata5.dat' replace into table t1 fields terminated by '' enclosed by '' ignore 1 lines (pk, apk);
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select * from t1 order by pk;
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pk apk data
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1 1 1
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3 4 NULL
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5 6 NULL
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load data infile '../std_data_ln/loaddata5.dat' replace into table t1 fields terminated by '' enclosed by '' ignore 1 lines (pk, apk);
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select * from t1 order by pk;
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pk apk data
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1 1 1
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3 4 NULL
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5 6 NULL
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