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727491b72a
This includes all test changes from
"Changing all cost calculation to be given in milliseconds"
and forwards.
Some of the things that caused changes in the result files:
- As part of fixing tests, I added 'echo' to some comments to be able to
easier find out where things where wrong.
- MATERIALIZED has now a higher cost compared to X than before. Because
of this some MATERIALIZED types have changed to DEPENDEND SUBQUERY.
- Some test cases that required MATERIALIZED to repeat a bug was
changed by adding more rows to force MATERIALIZED to happen.
- 'Filtered' in SHOW EXPLAIN has in many case changed from 100.00 to
something smaller. This is because now filtered also takes into
account the smallest possible ref access and filters, even if they
where not used. Another reason for 'Filtered' being smaller is that
we now also take into account implicit filtering done for subqueries
using FIRSTMATCH.
(main.subselect_no_exists_to_in)
This is caluculated in best_access_path() and stored in records_out.
- Table orders has changed because more accurate costs.
- 'index' and 'ALL' for small tables has changed to use 'range' or
'ref' because of optimizer_scan_setup_cost.
- index can be changed to 'range' as 'range' optimizer assumes we don't
have to read the blocks from disk that range optimizer has already read.
This can be confusing in the case where there is no obvious where clause
but instead there is a hidden 'key_column > NULL' added by the optimizer.
(main.subselect_no_exists_to_in)
- Scan on primary clustered key does not report 'Using Index' anymore
(It's a table scan, not an index scan).
- For derived tables, the number of rows is now 100 instead of 2,
which can be seen in EXPLAIN.
- More tests have "Using index for group by" as the cost of this
optimization is now more correct (lower).
- A primary key could be preferred for a normal key, even if it would
access more rows, as it's faster to do 1 lokoup and 3 'index_next' on a
clustered primary key than one lookup trough a secondary.
(main.stat_tables_innodb)
Notes:
- There was a 4.7% more calls to best_extension_by_limited_search() in
the main.greedy_optimizer test. However examining the test results
it looked that the plans where slightly better (eq_ref where more
chained together) so I assume this is ok.
- I have verified a few test cases where there was notable/unexpected
changes in the plan and in all cases the new optimizer plans where
faster. (main.greedy_optimizer and some others)
384 lines
12 KiB
PHP
384 lines
12 KiB
PHP
################################################################################
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# inc/vcol_ins_upd.inc #
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# #
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# Purpose: #
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# Testing DDL operations such as INSERT, UPDATE, REPLACE and DELETE. #
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# #
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# #
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# #
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#------------------------------------------------------------------------------#
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# Original Author: Andrey Zhakov #
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# Original Date: 2008-09-04 #
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# Change Author: Oleksandr Byelkin (Monty program Ab)
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# Date: 2009-03-24
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# Change: Syntax changed
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################################################################################
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let $create1 = create table t1 (a int,
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b int as (-a),
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c int as (-a) persistent);
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let $create2 = create table t1 (a int unique,
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b int as (-a),
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c int as (-a) persistent);
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let $create3 = create table t1 (a int,
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b int as (-a),
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c int as (-a) persistent unique);
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let $create4 = create table t1 (a int,
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b int as (-a),
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c int as (-a) persistent unique,
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d varchar(16));
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eval $create1;
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set sql_warnings = 1;
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# Prefer table scans to range
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set @@optimizer_scan_setup_cost=0;
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--echo #
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--echo # *** INSERT ***
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--echo #
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--echo # INSERT INTO tbl_name VALUES... DEFAULT is specified against vcols
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insert into t1 values (1,default,default);
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select * from t1;
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delete from t1;
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select * from t1;
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--echo # INSERT INTO tbl_name VALUES... NULL is specified against vcols
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insert into t1 values (1,null,null);
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select * from t1;
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delete from t1;
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select * from t1;
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--echo # INSERT INTO tbl_name VALUES... a non-NULL value is specified against vcols
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insert ignore into t1 values (1,2,3);
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select * from t1;
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delete from t1;
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select * from t1;
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--echo # INSERT INTO tbl_name (<non_vcol_list>) VALUES...
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insert into t1 (a) values (1), (2);
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select * from t1;
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delete from t1;
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select * from t1;
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--echo # INSERT INTO tbl_name (<normal+vcols>) VALUES... DEFAULT is specified
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--echo # against vcols
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insert into t1 (a,b) values (1,default), (2,default);
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select * from t1;
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delete from t1;
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select * from t1;
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--echo # INSERT INTO tbl_name (<normal+vcols>) VALUES... NULL is specified against vcols
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insert into t1 (a,b) values (1,null), (2,null);
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select * from t1;
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delete from t1;
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select * from t1;
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--echo # INSERT INTO tbl_name (<normal+vcols>) VALUES... a non-NULL value is specified
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--echo # against vcols
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insert ignore into t1 (a,b) values (1,3), (2,4);
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select * from t1;
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delete from t1;
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select * from t1;
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drop table t1;
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--echo # Table with UNIQUE non-vcol field. INSERT INTO tbl_name VALUES... ON DUPLICATE
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--echo # KEY UPDATE <non_vcol>=expr, <vcol>=expr
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eval $create2;
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insert into t1 values (1,default,default);
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insert into t1 values (1,default,default)
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on duplicate key update a=2, b=default;
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select a,b,c from t1;
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delete from t1 where b in (1,2);
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select * from t1;
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drop table t1;
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--echo # Table with UNIQUE vcol field. INSERT INTO tbl_name VALUES... ON DUPLICATE
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--echo # KEY UPDATE <non_vcol>=expr, <vcol>=expr
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eval $create3;
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insert into t1 values (1,default,default);
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insert into t1 values (1,default,default)
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on duplicate key update a=2, b=default;
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select a,b,c from t1;
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--echo # CREATE new_table ... LIKE old_table
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--echo # INSERT INTO new_table SELECT * from old_table
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create table t2 like t1;
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insert ignore into t2 select * from t1;
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select * from t1;
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drop table t2;
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--echo # CREATE new_table ... LIKE old_table INSERT INTO new_table (<non-vcols>, <vcols>)
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--echo # SELECT <non-vcols>, <vcols> from old_table
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insert into t1 values (1,default,default);
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select * from t1;
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create table t2 like t1;
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insert ignore into t2 (a,b) select a,b from t1;
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select * from t2;
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drop table t2;
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drop table t1;
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--echo #
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--echo # *** UPDATE ***
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--echo #
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--echo # UPDATE tbl_name SET non-vcol=expr WHERE non-vcol=expr
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eval $create1;
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insert into t1 (a) values (1), (2);
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select * from t1;
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update t1 set a=3 where a=2;
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select * from t1;
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delete from t1;
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select * from t1;
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--echo # UPDATE tbl_name SET vcol=expr WHERE non-vcol=expr
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insert into t1 (a) values (1), (2);
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select * from t1;
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update ignore t1 set c=3 where a=2;
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select * from t1;
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delete from t1;
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select * from t1;
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--echo # UPDATE tbl_name SET non-vcol=expr WHERE vcol=expr
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insert into t1 (a) values (1), (2);
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select * from t1;
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update t1 set a=3 where b=-2;
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select * from t1;
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delete from t1;
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select * from t1;
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--echo # UPDATE tbl_name SET vcol=expr WHERE vcol=expr
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insert into t1 (a) values (1), (2);
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select * from t1;
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update ignore t1 set c=3 where b=-2;
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select * from t1;
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delete from t1;
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select * from t1;
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drop table t1;
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--echo # INDEX created on vcol
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--echo # UPDATE tbl_name SET non-vcol=expr WHERE vcol=const
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eval $create3;
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insert into t1 (a) values (1), (2);
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select * from t1;
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update t1 set a=3 where c=-2;
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select * from t1;
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delete from t1;
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select * from t1;
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--echo # INDEX created on vcol
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--echo # UPDATE tbl_name SET non-vcol=expr WHERE vcol=between const1 and const2
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insert into t1 (a) values (1), (2);
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select * from t1;
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update t1 set a=3 where c between -3 and -2;
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select * from t1;
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delete from t1;
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select * from t1;
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--echo # No INDEX created on vcol
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--echo # UPDATE tbl_name SET non-vcol=expr WHERE vcol=between const1 and const2
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insert into t1 (a) values (1), (2);
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select * from t1;
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update t1 set a=3 where b between -3 and -2;
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select * from t1;
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delete from t1;
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select * from t1;
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--echo # INDEX created on vcol
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--echo # UPDATE tbl_name SET non-vcol=expr
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--echo # WHERE vcol=between const1 and const2 ORDER BY vcol
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insert into t1 (a) values (1), (2), (3), (4), (5);
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select * from t1;
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update t1 set a=6 where c between -1 and 0
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order by c;
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select * from t1;
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delete from t1 where c between -6 and 0;
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select * from t1;
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--echo # INDEX created on vcol
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--echo # UPDATE tbl_name SET non-vcol=expr
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--echo # WHERE vcol=between const1 and const2 ORDER BY vcol LIMIT 2
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insert into t1 (a) values (1), (2), (3), (4), (5);
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select * from t1;
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update t1 set a=6 where c between -1 and 0
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order by c limit 2;
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select * from t1;
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delete from t1 where c between -2 and 0 order by c;
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select * from t1;
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delete from t1;
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--echo # INDEX created on vcol
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--echo # UPDATE tbl_name SET non-vcol=expr
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--echo # WHERE indexed vcol=between const1 and const2 and non-indexed vcol=const3
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insert into t1 (a) values (1), (2), (3), (4), (5);
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select * from t1;
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update t1 set a=6 where (c between -2 and 0) and (b=-1);
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select * from t1;
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delete from t1;
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--echo # INDEX created on vcol
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--echo # UPDATE tbl_name SET non-vcol=expr
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--echo # WHERE indexed vcol=between const1 and const2 and non-indexed vcol=const3
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--echo # ORDER BY indexed vcol
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insert into t1 (a) values (1), (2), (3), (4), (5);
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select * from t1;
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update t1 set a=6 where (c between -2 and 0) and (b=-1) order by c;
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select * from t1;
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delete from t1;
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drop table t1;
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let $innodb_engine = `SELECT @@session.default_storage_engine='innodb'`;
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if ($innodb_engine)
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{
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--echo #
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--echo # Verify ON UPDATE/DELETE actions of FOREIGN KEYs
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create table t2 (a int primary key, name varchar(10));
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create table t1 (a int primary key, b int as (a % 10) persistent);
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insert into t2 values (1, 'value1'), (2,'value2'), (3,'value3');
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insert into t1 (a) values (1),(2),(3);
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select * from t1;
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select * from t2;
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select t1.a, t1.b, t2.name from t1,t2 where t1.b=t2.a;
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--echo # - ON UPDATE RESTRICT
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alter table t1 add foreign key (b) references t2(a) on update restrict;
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--error ER_NO_REFERENCED_ROW_2
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insert into t1 (a) values (4);
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--error ER_ROW_IS_REFERENCED_2
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update t2 set a=4 where a=3;
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select t1.a, t1.b, t2.name from t1,t2 where t1.b=t2.a;
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alter table t1 drop foreign key t1_ibfk_1;
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--echo # - ON DELETE RESTRICT
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alter table t1 add foreign key (b) references t2(a) on delete restrict;
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--error ER_ROW_IS_REFERENCED_2
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delete from t2 where a=3;
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select t1.a, t1.b, t2.name from t1,t2 where t1.b=t2.a;
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select t1.a, t1.b, t2.name from t1 left outer join t2 on (t1.b=t2.a);
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alter table t1 drop foreign key t1_ibfk_1;
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--echo # - ON DELETE CASCADE
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alter table t1 add foreign key (b) references t2(a) on delete cascade;
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delete from t2 where a=3;
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select t1.a, t1.b, t2.name from t1,t2 where t1.b=t2.a;
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select t1.a, t1.b, t2.name from t1 left outer join t2 on (t1.b=t2.a);
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alter table t1 drop foreign key t1_ibfk_1;
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drop table t1;
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drop table t2;
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}
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--echo #
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--echo # *** REPLACE ***
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--echo #
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--echo # UNIQUE INDEX on vcol
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--echo # REPLACE tbl_name (non-vcols) VALUES (non-vcols);
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eval $create4;
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insert into t1 (a,d) values (1,'a'), (2,'b');
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select * from t1;
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replace t1 (a,d) values (1,'c');
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select * from t1;
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delete from t1;
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select * from t1;
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# *** DELETE
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# All required tests for DELETE are performed as part of the above testing
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# for INSERT, UPDATE and REPLACE.
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set sql_warnings = 0;
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drop table t1;
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--echo #
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--echo # MDEV-9093: Persistent computed column is not updated when
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--echo # update query contains join
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--echo #
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CREATE TABLE `t1` (
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`id` bigint(20) NOT NULL,
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`name` varchar(254) DEFAULT NULL,
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`name_hash` varchar(64) AS (sha1(name)) PERSISTENT,
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PRIMARY KEY (`id`)
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);
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insert into t1(id,name) values (2050, 'name1'),(2051, 'name2'),(2041, 'name3');
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create table t2 (id bigint);
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insert into t2 values (2050),(2051),(2041);
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select * from t1;
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update t1 join t2 using(id) set name = concat(name,
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'+1') where t1.id in (2051,2041);
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select * from t1;
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drop table t1,t2;
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--echo #
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--echo # Test error handling with virtual columns
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--echo #
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CREATE TABLE IF NOT EXISTS t1 (
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f1 DOUBLE,
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f2 DOUBLE NOT NULL DEFAULT '0',
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f3 DOUBLE,
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f4 DOUBLE NOT NULL DEFAULT '0',
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v1 DOUBLE AS ( ( f1 DIV ( f1 ) ) <= f2 ) VIRTUAL,
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v2 DOUBLE AS ( ( f2 DIV ( f2 ) ) <= f2 ) VIRTUAL,
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KEY (v2)
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);
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set sql_mode='strict_all_tables,error_for_division_by_zero';
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--error ER_DIVISION_BY_ZERO
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INSERT INTO t1 (f1, f2, f3, f4) VALUES (0, 0, 0, 0);
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INSERT INTO t1 (f1, f2, f3, f4) VALUES (1, 1, 1, 1);
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--error ER_DIVISION_BY_ZERO
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INSERT INTO t1 (f1, f2, f3, f4) VALUES (1, 0, 1, 1);
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INSERT IGNORE INTO t1 (f1, f2, f3, f4) VALUES (1, 0, 1, 1);
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INSERT INTO t1 (f1, f2, f3, f4) VALUES (0, 1, 1, 1);
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select v1 from t1;
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--error ER_DIVISION_BY_ZERO
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INSERT INTO t1 (f1, f2, f3, f4) VALUES (0,0,0,0), (2,2,2,2);
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INSERT INTO t1 (f1, f2, f3, f4) VALUES (3,3,3,3), (4,4,4,4);
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--error ER_DIVISION_BY_ZERO
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INSERT INTO t1 (f1, f2, f3, f4) VALUES (5,5,5,5), (1,0,0,0);
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INSERT INTO t1 (f1, f2, f3, f4) VALUES (6,6,0,0);
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--error ER_DIVISION_BY_ZERO
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INSERT INTO t1 ( f1, f2, f3, f4 ) SELECT f3, f4, f3, f4 FROM t1;
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select count(*) from t1;
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DELETE FROM t1 WHERE v2 != f1 and f1 < 5;
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select count(*) from t1;
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select * from t1;
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--error ER_BAD_NULL_ERROR
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INSERT INTO t1 ( f1, f2, f3, f4 ) SELECT v1, v2, 10,10 FROM t1;
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INSERT INTO t1 ( f1, f2, f3, f4 ) SELECT v1, v2, 10,10 FROM t1 where f2 !=0;
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UPDATE t1 SET f3 = v1 WHERE f2 = 2 AND v2 is null;
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SELECT * FROM t1;
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TRUNCATE TABLE t1;
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set sql_mode='error_for_division_by_zero';
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INSERT INTO t1 (f1, f2, f3, f4) VALUES (0, 0, 0, 0);
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INSERT INTO t1 (f1, f2, f3, f4) VALUES (1, 1, 1, 1);
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INSERT INTO t1 (f1, f2, f3, f4) VALUES (1, 0, 1, 1);
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INSERT INTO t1 (f1, f2, f3, f4) VALUES (0, 1, 1, 1);
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select v1 from t1;
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INSERT INTO t1 (f1, f2, f3, f4) VALUES (0,0,0,0), (2,2,2,2);
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INSERT INTO t1 (f1, f2, f3, f4) VALUES (3,3,3,3), (4,4,4,4);
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INSERT INTO t1 (f1, f2, f3, f4) VALUES (5,5,5,5), (1,0,0,0);
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INSERT INTO t1 (f1, f2, f3, f4) VALUES (6,6,0,0);
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INSERT INTO t1 ( f1, f2, f3, f4 ) SELECT f3, f4, f3, f4 FROM t1;
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select count(*) from t1;
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DELETE FROM t1 WHERE v2 != f1 and f1 < 5;
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select count(*) from t1;
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select * from t1;
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INSERT INTO t1 ( f1, f2, f3, f4 ) SELECT v1, v2, 10,10 FROM t1;
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UPDATE t1 SET f3 = v1 WHERE f2 = 2 AND v2 is null;
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drop table t1;
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set sql_mode=@@global.sql_mode;
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