132 lines
3.7 KiB
PHP
132 lines
3.7 KiB
PHP
#
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# Testing Index Condition Pushdown for MyRocks
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# Test file parameter: $cf_name specifies the CF to store test data in
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# It can be forward or reverse-ordered CF
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#
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select * from information_schema.engines where engine = 'xengine';
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--disable_warnings
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drop table if exists t0,t1,t2,t3;
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--enable_warnings
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create table t0 (a int) engine=myisam;
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insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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create table t1(a int) engine=myisam;
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insert into t1 select A.a + B.a* 10 + C.a * 100 from t0 A, t0 B, t0 C;
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eval
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create table t2 (
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pk int primary key,
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kp1 int,
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kp2 int,
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col1 int,
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key (kp1,kp2) comment '$cf_name'
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) engine=xengine;
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insert into t2 select a,a,a,a from t1;
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--echo # Try a basic case:
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--replace_column 10 #
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explain
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select * from t2 where kp1 between 1 and 10 and mod(kp2,2)=0;
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select * from t2 where kp1 between 1 and 10 and mod(kp2,2)=0;
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--echo # Check that ICP doesnt work for columns where column value
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--echo # cant be restored from mem-comparable form:
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eval
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create table t3 (
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pk int primary key,
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kp1 int,
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kp2 varchar(10) collate utf8_general_ci,
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col1 int,
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key (kp1,kp2) comment '$cf_name'
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) engine=xengine;
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--echo # This must not use ICP:
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--replace_column 10 #
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explain
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select * from t3 where kp1=3 and kp2 like '%foo%';
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select * from t3 where kp1=3 and kp2 like '%foo%';
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--replace_column 10 #
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explain format=json
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select * from t3 where kp1 between 2 and 4 and mod(kp1,3)=0 and kp2 like '%foo%';
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--echo # Check that we handle the case where out-of-range is encountered sooner
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--echo # than matched index condition
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--replace_column 10 #
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explain
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select * from t2 where kp1< 3 and kp2+1>50000;
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select * from t2 where kp1< 3 and kp2+1>50000;
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--replace_column 10 #
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explain
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select * from t2 where kp1< 3 and kp2+1>50000;
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select * from t2 where kp1< 3 and kp2+1>50000;
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--echo # Try doing backwards scans
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--replace_column 10 #
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explain
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select * from t2 where kp1 between 1 and 10 and mod(kp2,2)=0 order by kp1 desc;
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select * from t2 where kp1 between 1 and 10 and mod(kp2,2)=0 order by kp1 desc;
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--replace_column 10 #
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explain
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select * from t2 where kp1 >990 and mod(kp2,2)=0 order by kp1 desc;
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select * from t2 where kp1 >990 and mod(kp2,2)=0 order by kp1 desc;
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--replace_column 10 #
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explain
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select * from t2 where kp1< 3 and kp2+1>50000 order by kp1 desc;
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select * from t2 where kp1< 3 and kp2+1>50000 order by kp1 desc;
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drop table t0,t1,t2,t3;
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--echo #
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--echo # Check how ICP affects counters
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--echo #
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--echo # First, some preparations
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--echo #
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eval
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create table t4 (
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id int,
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id1 int,
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id2 int,
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value int,
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value2 varchar(100),
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primary key (id),
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key id1_id2 (id1, id2) comment '$cf_name'
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) engine=xengine charset=latin1 collate latin1_bin;
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insert into t4 values
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(1,1,1,1,1), (2,1,2,2,2), (3,1,3,3,3),(4,1,4,4,4),(5,1,5,5,5),
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(6,1,6,6,6), (7,1,7,7,7), (8,1,8,8,8),(9,1,9,9,9),(10,1,10,10,10);
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--echo #
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--echo # Now, the test itself
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--echo #
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--echo # ============== index-only query ==============
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--replace_column 10 #
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explain
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select id1,id2 from t4 force index (id1_id2) where id1=1 and id2 % 10 = 1;
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select id1,id2 from t4 force index (id1_id2) where id1=1 and id2 % 10 = 1;
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--echo # ============== Query without ICP ==============
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set optimizer_switch='index_condition_pushdown=off';
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--replace_column 10 #
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explain
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select * from t4 force index (id1_id2) where id1=1 and id2 % 10 = 1;
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select * from t4 force index (id1_id2) where id1=1 and id2 % 10 = 1;
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--echo # ============== Query with ICP ==============
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set optimizer_switch='index_condition_pushdown=on';
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--replace_column 10 #
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explain
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select * from t4 force index (id1_id2) where id1=1 and id2 % 10 = 1;
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select * from t4 force index (id1_id2) where id1=1 and id2 % 10 = 1;
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drop table t4;
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