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139 lines
4.3 KiB
SQL
139 lines
4.3 KiB
SQL
# include/index_merge_ror_cpk.inc
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#
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# Clustered PK ROR-index_merge tests
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#
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# Note: The comments/expectations refer to InnoDB.
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# They might be not valid for other storage engines.
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#
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# Last update:
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# 2006-08-02 ML test refactored
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# old name was t/index_merge_ror_cpk.test
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# main code went into include/index_merge_ror_cpk.inc
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#
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--source include/have_sequence.inc
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--echo #---------------- Clustered PK ROR-index_merge tests -----------------------------
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create table t1
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(
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pk1 int not null,
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pk2 int not null,
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key1 int not null,
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key2 int not null,
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pktail1ok int not null,
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pktail2ok int not null,
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pktail3bad int not null,
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pktail4bad int not null,
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pktail5bad int not null,
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pk2copy int not null,
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badkey int not null,
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filler1 char (200),
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filler2 char (200),
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key (key1),
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key (key2),
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/* keys with tails from CPK members */
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key (pktail1ok, pk1),
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key (pktail2ok, pk1, pk2),
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key (pktail3bad, pk2, pk1),
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key (pktail4bad, pk1, pk2copy),
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key (pktail5bad, pk1, pk2, pk2copy),
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primary key (pk1, pk2)
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);
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--disable_query_log
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begin;
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let $1=10000;
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while ($1)
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{
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eval insert into t1 values ($1 div 10,$1 mod 100, $1/100,$1/100, $1/100,$1/100,$1/100,$1/100,$1/100, $1 mod 100, $1/1000,'filler-data-$1','filler2');
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dec $1;
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}
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commit;
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--enable_query_log
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# Verify that range scan on CPK is ROR
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# (use index_intersection because it is impossible to check that for index union)
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explain select * from t1 where pk1 = 1 and pk2 < 80 and key1=0;
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# CPK scan + 1 ROR range scan is a special case
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select * from t1 where pk1 = 1 and pk2 < 80 and key1=0;
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# Verify that CPK fields are considered to be covered by index scans
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explain select pk1,pk2 from t1 where key1 = 10 and key2=10 and 2*pk1+1 < 2*96+1;
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select pk1,pk2 from t1 where key1 = 10 and key2=10 and 2*pk1+1 < 2*96+1;
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# Verify that CPK is always used for index intersection scans
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# (this is because it is used as a filter, not for retrieval)
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explain select * from t1 where badkey=1 and key1=10;
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set @tmp_index_merge_ror_cpk=@@optimizer_switch;
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set optimizer_switch='extended_keys=off';
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--replace_column 9 ROWS
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explain select * from t1 where pk1 < 7500 and key1 = 10;
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set optimizer_switch=@tmp_index_merge_ror_cpk;
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# Verify that keys with 'tails' of PK members are ok.
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explain select * from t1 where pktail1ok=1 and key1=10;
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explain select * from t1 where pktail2ok=1 and key1=10;
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# Note: The following is actually a deficiency, it uses sort_union currently.
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# This comment refers to InnoDB and is probably not valid for other engines.
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explain select * from t1 where (pktail2ok=1 and pk1< 50000) or key1=10;
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# The expected rows differs a bit from platform to platform
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--replace_result 98 ROWS 99 ROWS
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explain select * from t1 where pktail3bad=1 and key1=10;
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explain select * from t1 where pktail4bad=1 and key1=10;
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explain select * from t1 where pktail5bad=1 and key1=10;
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# Test for problem with innodb key values prefetch buffer:
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explain select pk1,pk2,key1,key2 from t1 where key1 = 10 and key2=10 limit 10;
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select pk1,pk2,key1,key2 from t1 where key1 = 10 and key2=10 limit 10;
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drop table t1;
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# Testcase for BUG#4984
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create table t1
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(
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RUNID varchar(22),
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SUBMITNR varchar(5),
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ORDERNR char(1),
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PROGRAMM varchar(8),
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TESTID varchar(4),
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UCCHECK char(1),
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ETEXT varchar(80),
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ETEXT_TYPE char(1),
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INFO char(1),
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SEVERITY tinyint(3),
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TADIRFLAG char(1),
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PRIMARY KEY (RUNID,SUBMITNR,ORDERNR,PROGRAMM,TESTID,UCCHECK),
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KEY `TVERM~KEY` (PROGRAMM,TESTID,UCCHECK)
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) DEFAULT CHARSET=latin1;
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update t1 set `ETEXT` = '', `ETEXT_TYPE`='', `INFO`='', `SEVERITY`='', `TADIRFLAG`=''
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WHERE
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`RUNID`= '' AND `SUBMITNR`= '' AND `ORDERNR`='' AND `PROGRAMM`='' AND
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`TESTID`='' AND `UCCHECK`='';
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drop table t1;
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--echo #
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--echo # Bug#50402 Optimizer producing wrong results when using Index Merge on InnoDB
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--echo #
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CREATE TABLE t1 (f1 INT, PRIMARY KEY (f1)) CHARSET=latin1;
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INSERT INTO t1 VALUES (2);
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CREATE TABLE t2 (f1 INT, f2 INT, f3 char(1),
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PRIMARY KEY (f1), KEY (f2), KEY (f3)) CHARSET=latin1;
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INSERT INTO t2 VALUES (1, 1, 'h'), (2, 3, 'h'), (3, 2, ''), (4, 2, '');
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SELECT t1.f1 FROM t1
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WHERE (SELECT COUNT(*) FROM t2 WHERE t2.f3 = 'h' AND t2.f2 = t1.f1) = 0 AND t1.f1 = 2;
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EXPLAIN SELECT t1.f1 FROM t1
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WHERE (SELECT COUNT(*) FROM t2 WHERE t2.f3 = 'h' AND t2.f2 = t1.f1) = 0 AND t1.f1 = 2;
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DROP TABLE t1,t2;
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