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bef30f2e30
-- innodb-wl5522-debug-zip (path differences win/unix) -- innodb_defragment_fill_factor (stabilise) -- innodb_force_pk (case difference win/unix)
166 lines
6.4 KiB
Plaintext
166 lines
6.4 KiB
Plaintext
--source include/have_innodb.inc
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--source include/big_test.inc
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--source include/not_valgrind.inc
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--source include/not_embedded.inc
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--source include/have_innodb_16k.inc
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--disable_warnings
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DROP TABLE if exists t1;
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DROP TABLE if exists t2;
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--enable_warnings
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--echo Testing tables with large records
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# Create table.
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CREATE TABLE t1 (a INT NOT NULL PRIMARY KEY AUTO_INCREMENT, b VARCHAR(256), KEY SECOND(a, b)) ENGINE=INNODB;
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# Populate table.
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INSERT INTO t1 VALUES (1, REPEAT('A', 256));
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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--disable_query_log
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let $size = 10;
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while ($size)
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{
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let $j = 100 * $size;
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eval delete from t1 where a between $j - 20 and $j + 5;
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dec $size;
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}
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--enable_query_log
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--source include/restart_mysqld.inc
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optimize table t1;
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select sleep(1);
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--source include/restart_mysqld.inc
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select count(*) from t1;
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# After deletion & defragmentation, there are 800 records left. Each page can hold about 57 records. We fill the page 90% full,
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# so there should be less than 16 pages total.
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--let $primary_before = query_get_value(select count(*) as Value from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'PRIMARY', Value, 1)
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select count(*) from t1 force index (second);
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# secondary index is slightly bigger than primary index so the number of pages should be similar.
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--let $second_before = query_get_value(select count(*) as Value from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'second', Value, 1)
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--echo # A few more insertions on the page should not cause a page split.
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insert into t1 values (81, REPEAT('A', 256));
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insert into t1 values (83, REPEAT('A', 256));
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insert into t1 values (87, REPEAT('A', 256));
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insert into t1 values (82, REPEAT('A', 256));
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insert into t1 values (86, REPEAT('A', 256));
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--let $primary_after = query_get_value(select count(*) as Value from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'PRIMARY', Value, 1)
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--let $second_after = query_get_value(select count(*) as Value from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'second', Value, 1)
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if ($primary_before != $primary_after) {
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--echo Insertion caused page split on primary, which should be avoided by innodb_defragment_fill_factor.
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}
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if ($second_before != $second_after) {
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--echo Insertion caused page split on second, which should be avoided by innodb_defragment_fill_factor.
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}
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--echo # More insertions will cause page splits
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insert into t1 values (88, REPEAT('A', 256));
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insert into t1 values (85, REPEAT('A', 256));
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insert into t1 values (84, REPEAT('A', 256));
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--let $primary_after = query_get_value(select count(*) as Value from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'PRIMARY', Value, 1)
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--let $second_after = query_get_value(select count(*) as Value from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'second', Value, 1)
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if ($primary_before == $primary_after) {
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--echo Too much space are reserved on primary index.
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}
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if ($second_before == $second_after) {
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--echo Too much space are reserved on second index.
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}
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DROP TABLE t1;
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--echo Testing table with small records
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CREATE TABLE t2 (a INT NOT NULL PRIMARY KEY AUTO_INCREMENT, b VARchar(16), KEY SECOND(a,b)) ENGINE=INNODB;
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# Populate table.
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--disable_query_log
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INSERT INTO t2 VALUES (1, REPEAT('A', 16));
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INSERT INTO t2 (b) SELECT b from t2;
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INSERT INTO t2 (b) SELECT b from t2;
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INSERT INTO t2 (b) SELECT b from t2;
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INSERT INTO t2 (b) SELECT b from t2;
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INSERT INTO t2 (b) SELECT b from t2;
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INSERT INTO t2 (b) SELECT b from t2;
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INSERT INTO t2 (b) SELECT b from t2;
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INSERT INTO t2 (b) SELECT b from t2;
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INSERT INTO t2 (b) SELECT b from t2;
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INSERT INTO t2 (b) SELECT b from t2;
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INSERT INTO t2 (b) SELECT b from t2;
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INSERT INTO t2 (b) SELECT b from t2;
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--enable_query_log
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--disable_query_log
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let $size = 40;
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while ($size)
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{
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let $j = 100 * $size;
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eval delete from t2 where a between $j - 20 and $j;
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dec $size;
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}
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--enable_query_log
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--source include/restart_mysqld.inc
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optimize table t2;
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select sleep(1);
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--source include/restart_mysqld.inc
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select count(*) from t2 force index(second);
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--let $second_before = query_get_value(select count(*) as Value from information_schema.innodb_buffer_page where table_name like '%t2%' and index_name = 'second', Value, 1)
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--echo The page should have room for about 20 insertions
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insert into t2 values(1181, REPEAT('A', 16));
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insert into t2 values(1191, REPEAT('A', 16));
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insert into t2 values(1182, REPEAT('A', 16));
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insert into t2 values(1192, REPEAT('A', 16));
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insert into t2 values(1183, REPEAT('A', 16));
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insert into t2 values(1193, REPEAT('A', 16));
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insert into t2 values(1184, REPEAT('A', 16));
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insert into t2 values(1194, REPEAT('A', 16));
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insert into t2 values(1185, REPEAT('A', 16));
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insert into t2 values(1195, REPEAT('A', 16));
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insert into t2 values(1186, REPEAT('A', 16));
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insert into t2 values(1196, REPEAT('A', 16));
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insert into t2 values(1187, REPEAT('A', 16));
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insert into t2 values(1197, REPEAT('A', 16));
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insert into t2 values(1188, REPEAT('A', 16));
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insert into t2 values(1198, REPEAT('A', 16));
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insert into t2 values(1189, REPEAT('A', 16));
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insert into t2 values(1199, REPEAT('A', 16));
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insert into t2 values(1190, REPEAT('A', 16));
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insert into t2 values(1180, REPEAT('A', 16));
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--let $second_after = query_get_value(select count(*) as Value from information_schema.innodb_buffer_page where table_name like '%t2%' and index_name = 'second', Value, 1)
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if ($second_before != $second_after) {
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--echo Insertion caused page split on second, which should be avoided by innodb_defragment_fill_factor.
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}
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--echo More insertions will cause page split.
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insert into t2 values(1280, REPEAT('A', 16));
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insert into t2 values(1290, REPEAT('A', 16));
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insert into t2 values(1281, REPEAT('A', 16));
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insert into t2 values(1291, REPEAT('A', 16));
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--let $second_after = query_get_value(select count(*) as Value from information_schema.innodb_buffer_page where table_name like '%t2%' and index_name = 'second', Value, 1)
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if ($second_before == $second_after) {
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--echo Too much space are reserved on second index.
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}
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DROP TABLE t2; |