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MDEV-16546 System versioning setting to allow history modification
1. system_versioning_insert_history session variable allows pseudocolumns ROW_START and ROW_END be specified in INSERT, INSERT..SELECT and LOAD DATA. 2. Cleaned up select_insert::send_data() from setting vers_write as this parameter is now set on TABLE initialization. 4. Replication of system_versioning_insert_history via option_bits in OPTIONS_WRITTEN_TO_BIN_LOG.
This commit is contained in:
Aleksey Midenkov
committed by
Sergei Golubchik
Sergei Golubchik
parent
d9b0c9ad2b
commit
a2cda88631
@@ -81,4 +81,161 @@ select x, y from t2;
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drop table t1;
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drop table t2;
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--echo #
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--echo # MDEV-16546 System versioning setting to allow history modification
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--echo #
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set @@session.time_zone='+00:00';
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let $MAX_TIMESTAMP= TIMESTAMP'2038-01-19 03:14:07.999999';
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create table t1(x int primary key) with system versioning;
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create table t2(y int primary key,
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row_start timestamp(6) as row start invisible,
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row_end timestamp(6) as row end invisible,
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period for system_time (row_start, row_end))
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with system versioning;
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create table t3(z int primary key,
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row_start timestamp(6) as row start,
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row_end timestamp(6) as row end,
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period for system_time (row_start, row_end))
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with system versioning;
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--error ER_BAD_FIELD_ERROR
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insert into t1(x, row_start, row_end) values (2, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
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--error ER_WARNING_NON_DEFAULT_VALUE_FOR_GENERATED_COLUMN
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insert into t2(y, row_start, row_end) values (2, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
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set @@system_versioning_insert_history= 1;
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--replace_result $default_engine DEFAULT_ENGINE
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show create table t1;
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insert into t1(x, row_start, row_end) values (3, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
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insert into t2(y, row_start, row_end) values (4, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
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insert into t3 values (5, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
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select x, row_start, row_end from t1 for system_time all;
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select y, row_start, row_end from t2 for system_time all;
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select z, row_start, row_end from t3 for system_time all;
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insert into t1(x) values (1);
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insert into t2(y) values (1);
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update t1 set x= x + 1;
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--error ER_BAD_FIELD_ERROR
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update t1 set row_start= '1971-01-01 00:00:00';
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--error ER_WARNING_NON_DEFAULT_VALUE_FOR_GENERATED_COLUMN
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update t2 set row_start= '1971-01-01 00:00:00';
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--error ER_BAD_FIELD_ERROR
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insert t1 (x) values (2) on duplicate key update x= 3, row_end= '1970-01-01 00:00:00';
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--error ER_WARNING_NON_DEFAULT_VALUE_FOR_GENERATED_COLUMN
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insert t2 (y) values (1) on duplicate key update y= 3, row_end= '1970-01-01 00:00:00';
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# this should work, row_start/row_end must be mentioned explicitly:
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insert into t1 values (4);
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insert into t1 set x= 5, row_start= '1980-01-01 00:00:00', row_end= '1980-01-01 00:00:01';
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--error ER_WRONG_VALUE
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insert into t1(x, row_start, row_end) values (6, '1980-01-01 00:00:01', '1980-01-01 00:00:00');
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--error ER_WRONG_VALUE
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insert into t1(x, row_start, row_end) values (7, '1980-01-01 00:00:11', '1980-01-01 00:00:11');
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--error ER_WRONG_VALUE
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insert into t1(x, row_start) values (8, '1980-01-01 00:00:22');
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# NOTE: having row_start=0 might be useful and can mean
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# "there is no information on when history was started" (an opposite to row_end=MAX_TIMESTAMP)
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--error ER_WRONG_VALUE
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insert into t1(x, row_end) values (9, '1980-01-01 00:00:33');
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--error ER_WRONG_VALUE
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eval insert into t1(x, row_end) values (10, $MAX_TIMESTAMP);
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select x, check_row_ts(row_start, row_end) from t1 for system_time all order by x;
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eval select x, row_start, row_end from t1 for system_time all
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where x > 1 and row_end < $MAX_TIMESTAMP order by x, row_start, row_end;
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--echo # Direct insert is not possible for TRX_ID versioning
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create or replace table t2(y int primary key,
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row_start bigint unsigned as row start,
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row_end bigint unsigned as row end,
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period for system_time (row_start, row_end))
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with system versioning engine innodb;
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--error ER_WARNING_NON_DEFAULT_VALUE_FOR_GENERATED_COLUMN
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insert into t2(y, row_start, row_end) values (0, 1, 2);
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set @@system_versioning_insert_history= 0;
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--echo ## INSERT..SELECT
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create or replace table t2 like t1;
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set @@system_versioning_insert_history= 1;
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insert into t2 (x, row_start, row_end) select x, row_start, row_end from t1 for system_time all;
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select x, check_row_ts(row_start, row_end) from t2 for system_time all order by x;
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eval select x, row_start, row_end from t2 for system_time all
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where x > 1 and row_end < $MAX_TIMESTAMP order by x, row_start, row_end;
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set @@system_versioning_insert_history= 0;
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--echo # REPLACE / REPLACE .. SELECT
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create or replace table t2(a int primary key,
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row_start timestamp(6) as row start invisible,
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row_end timestamp(6) as row end invisible,
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period for system_time (row_start, row_end))
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with system versioning;
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--error ER_WARNING_NON_DEFAULT_VALUE_FOR_GENERATED_COLUMN
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replace into t2 (a, row_start, row_end) values (1, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
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--error ER_WARNING_NON_DEFAULT_VALUE_FOR_GENERATED_COLUMN
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replace into t2 (a, row_start, row_end) select x, row_start, row_end from t1;
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create or replace table t2 (a int primary key) with system versioning;
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--error ER_BAD_FIELD_ERROR
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replace into t2 (a, row_start, row_end) values (1, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
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--error ER_BAD_FIELD_ERROR
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replace into t2 (a, row_start, row_end) select x, row_start, row_end from t1;
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set @@system_versioning_insert_history= 1;
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--error ER_WRONG_VALUE
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replace into t2 (a, row_start) values (1, '1980-01-01 00:00:00');
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--error ER_WRONG_VALUE
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replace into t2 (a, row_end) values (0, '1980-01-01 00:00:00');
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replace into t2 (a, row_start, row_end) values (1, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
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select a, row_start, row_end from t2 for system_time all order by a, row_start, row_end;
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--echo # Changing row_end via REPLACE is NOT possible, we just insert new row:
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# NOTE: because multiple versions of history row with a=1 may exist, so what REPLACE should change?
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replace into t2 (a, row_start, row_end) values (1, '1980-01-01 00:00:00', '1990-01-01 00:00:01');
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select a, row_start, row_end from t2 for system_time all order by a, row_start, row_end;
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--echo # But changing row_start via REPLACE is possible:
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replace into t2 (a, row_start, row_end) values (1, '1971-01-01 00:00:00', '1980-01-01 00:00:01');
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select a, row_start, row_end from t2 for system_time all order by a, row_start, row_end;
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eval replace into t2 (a, row_start, row_end) select x, row_start, row_end from t1 for system_time all
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where x > 1 and row_end < $MAX_TIMESTAMP;
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select a, row_start, row_end from t2 for system_time all order by a, row_start, row_end;
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--echo # LOAD DATA
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--let DATAFILE= $MYSQLTEST_VARDIR/tmp/test_versioning_t3.data
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--replace_result $DATAFILE DATAFILE
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eval select x, row_start, row_end into outfile '$DATAFILE' from t1 for system_time all;
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create or replace table t3 like t1;
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--replace_result $default_engine DEFAULT_ENGINE
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show create table t3;
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set @@system_versioning_insert_history= 1;
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--replace_result $default_engine DEFAULT_ENGINE
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show create table t3;
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--replace_result $DATAFILE DATAFILE
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eval load data infile '$DATAFILE' into table t3 (x, row_start, row_end);
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select x, check_row_ts(row_start, row_end) from t3 for system_time all order by x;
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select row_start = '1980-01-01 00:00:00', row_end = '1980-01-01 00:00:01' from t3 for system_time all where x = 3;
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--remove_file $DATAFILE
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--echo # Honor secure_timestamp option
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--let $restart_parameters= --secure-timestamp=YES
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--source include/restart_mysqld.inc
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set @@system_versioning_insert_history= 1;
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--error ER_BAD_FIELD_ERROR
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insert into t1(x, row_start, row_end) values (8, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
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--let $restart_parameters= --secure-timestamp=REPLICATION
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--source include/restart_mysqld.inc
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set @@system_versioning_insert_history= 1;
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--error ER_BAD_FIELD_ERROR
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insert into t1(x, row_start, row_end) values (9, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
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--let $restart_parameters= --secure-timestamp=SUPER
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--source include/restart_mysqld.inc
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set @@system_versioning_insert_history= 1;
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insert into t1(x, row_start, row_end) values (10, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
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create user nobody;
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change_user nobody;
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use test;
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--error ER_BAD_FIELD_ERROR
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insert into t1(x, row_start, row_end) values (7, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
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change_user root;
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use test;
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--let $restart_parameters= --secure-timestamp=NO
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--source include/restart_mysqld.inc
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drop tables t1, t2, t3;
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-- source suite/versioning/common_finish.inc
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