Even after fix for MDEV-5112 (and MySQL Bug#69581), a query that runs index_merge intersection (union is probably affected too) over partitioned table, may return wrong query result.
Testcase:
create table t11 (
|
a int not null,
|
b int not null,
|
pk int not null,
|
primary key (pk),
|
key(a),
|
key(b)
|
) partition by hash(pk) partitions 10;
|
|
insert into t11 values (1,2,4); -- both
|
insert into t11 values (1,0,17); -- left
|
insert into t11 values (1,2,25); -- both
|
|
insert into t11 values (10,20,122);
|
insert into t11 values (10,20,123);
|
|
-- Now, fill in some data so that the optimizer choses index_merge
|
create table t12 (a int);
|
insert into t12 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
|
insert into t11 select 1,2, 200 + A.a + 10*B.a + 100*C.a from t12 A, t12 B, t12 C;
|
|
insert into t11 select 10+A.a + 10*B.a + 100*C.a + 1000*D.a,
|
10+A.a + 10*B.a + 100*C.a + 1000*D.a,
|
2000 + A.a + 10*B.a + 100*C.a + 1000*D.a
|
from t12 A, t12 B, t12 C ,t12 D;
|
|
-- This should show index_merge, using intersect
|
explain select * from t11 where a=1 and b=2 and pk between 1 and 999999 ;
|
-- 794 rows in output
|
select * from t11 where a=1 and b=2 and pk between 1 and 999 ;
|
-- 802 rows in output
|
select * from t11 ignore index(a,b) where a=1 and b=2 and pk between 1 and 999 ;
|
- relates to
-
MDEV-5821
Wrong result of SELECT query while two indexed colums are in WHERE section
-
-
Closed
{"report":{"fcp":1738.3000001907349,"ttfb":433,"pageVisibility":"visible","entityId":26113,"key":"jira.project.issue.view-issue","isInitial":true,"threshold":1000,"elementTimings":{},"userDeviceMemory":8,"userDeviceProcessors":32,"apdex":0.5,"journeyId":"84f6b7c4-d2df-4a7e-bb8a-d8e961299afe","navigationType":0,"readyForUser":1832.5,"redirectCount":0,"resourceLoadedEnd":2342.4000000953674,"resourceLoadedStart":494.80000019073486,"resourceTiming":[{"duration":539.8000001907349,"initiatorType":"link","name":"https://jira.mariadb.org/s/2c21342762a6a02add1c328bed317ffd-CDN/lu2cib/820016/12ta74/0a8bac35585be7fc6c9cc5a0464cd4cf/_/download/contextbatch/css/_super/batch.css","startTime":494.80000019073486,"connectEnd":0,"connectStart":0,"domainLookupEnd":0,"domainLookupStart":0,"fetchStart":494.80000019073486,"redirectEnd":0,"redirectStart":0,"requestStart":0,"responseEnd":1034.6000003814697,"responseStart":0,"secureConnectionStart":0},{"duration":539.7999997138977,"initiatorType":"link","name":"https://jira.mariadb.org/s/7ebd35e77e471bc30ff0eba799ebc151-CDN/lu2cib/820016/12ta74/494e4c556ecbb29f90a3d3b4f09cb99c/_/download/contextbatch/css/jira.browse.project,project.issue.navigator,jira.view.issue,jira.general,jira.global,atl.general,-_super/batch.css?agile_global_admin_condition=true&jag=true&jira.create.linked.issue=true&slack-enabled=true&whisper-enabled=true","startTime":495.1000003814697,"connectEnd":0,"connectStart":0,"domainLookupEnd":0,"domainLookupStart":0,"fetchStart":495.1000003814697,"redirectEnd":0,"redirectStart":0,"requestStart":0,"responseEnd":1034.9000000953674,"responseStart":0,"secureConnectionStart":0},{"duration":540.8000001907349,"initiatorType":"script","name":"https://jira.mariadb.org/s/0917945aaa57108d00c5076fea35e069-CDN/lu2cib/820016/12ta74/0a8bac35585be7fc6c9cc5a0464cd4cf/_/download/contextbatch/js/_super/batch.js?locale=en","startTime":495.30000019073486,"connectEnd":495.30000019073486,"connectStart":495.30000019073486,"domainLookupEnd":495.30000019073486,"domainLookupStart":495.30000019073486,"fetchStart":495.30000019073486,"redirectEnd":0,"redirectStart":0,"requestStart":495.30000019073486,"responseEnd":1036.1000003814697,"responseStart":1036.1000003814697,"secureConnectionStart":495.30000019073486},{"duration":632.5,"initiatorType":"script","name":"https://jira.mariadb.org/s/2d8175ec2fa4c816e8023260bd8c1786-CDN/lu2cib/820016/12ta74/494e4c556ecbb29f90a3d3b4f09cb99c/_/download/contextbatch/js/jira.browse.project,project.issue.navigator,jira.view.issue,jira.general,jira.global,atl.general,-_super/batch.js?agile_global_admin_condition=true&jag=true&jira.create.linked.issue=true&locale=en&slack-enabled=true&whisper-enabled=true","startTime":495.5,"connectEnd":495.5,"connectStart":495.5,"domainLookupEnd":495.5,"domainLookupStart":495.5,"fetchStart":495.5,"redirectEnd":0,"redirectStart":0,"requestStart":495.5,"responseEnd":1128,"responseStart":1128,"secureConnectionStart":495.5},{"duration":651.0999999046326,"initiatorType":"script","name":"https://jira.mariadb.org/s/a9324d6758d385eb45c462685ad88f1d-CDN/lu2cib/820016/12ta74/c92c0caa9a024ae85b0ebdbed7fb4bd7/_/download/contextbatch/js/atl.global,-_super/batch.js?locale=en","startTime":495.7000002861023,"connectEnd":495.7000002861023,"connectStart":495.7000002861023,"domainLookupEnd":495.7000002861023,"domainLookupStart":495.7000002861023,"fetchStart":495.7000002861023,"redirectEnd":0,"redirectStart":0,"requestStart":495.7000002861023,"responseEnd":1146.8000001907349,"responseStart":1146.8000001907349,"secureConnectionStart":495.7000002861023},{"duration":654.3000001907349,"initiatorType":"script","name":"https://jira.mariadb.org/s/d41d8cd98f00b204e9800998ecf8427e-CDN/lu2cib/820016/12ta74/1.0/_/download/batch/jira.webresources:calendar-en/jira.webresources:calendar-en.js","startTime":496,"connectEnd":496,"connectStart":496,"domainLookupEnd":496,"domainLookupStart":496,"fetchStart":496,"redirectEnd":0,"redirectStart":0,"requestStart":496,"responseEnd":1150.3000001907349,"responseStart":1150.3000001907349,"secureConnectionStart":496},{"duration":648.5999999046326,"initiatorType":"script","name":"https://jira.mariadb.org/s/d41d8cd98f00b204e9800998ecf8427e-CDN/lu2cib/820016/12ta74/1.0/_/download/batch/jira.webresources:calendar-localisation-moment/jira.webresources:calendar-localisation-moment.js","startTime":506.1000003814697,"connectEnd":506.1000003814697,"connectStart":506.1000003814697,"domainLookupEnd":506.1000003814697,"domainLookupStart":506.1000003814697,"fetchStart":506.1000003814697,"redirectEnd":0,"redirectStart":0,"requestStart":506.1000003814697,"responseEnd":1154.7000002861023,"responseStart":1154.7000002861023,"secureConnectionStart":506.1000003814697},{"duration":765.0999999046326,"initiatorType":"link","name":"https://jira.mariadb.org/s/b04b06a02d1959df322d9cded3aeecc1-CDN/lu2cib/820016/12ta74/a2ff6aa845ffc9a1d22fe23d9ee791fc/_/download/contextbatch/css/jira.global.look-and-feel,-_super/batch.css","startTime":506.40000009536743,"connectEnd":0,"connectStart":0,"domainLookupEnd":0,"domainLookupStart":0,"fetchStart":506.40000009536743,"redirectEnd":0,"redirectStart":0,"requestStart":0,"responseEnd":1271.5,"responseStart":0,"secureConnectionStart":0},{"duration":653.7000002861023,"initiatorType":"script","name":"https://jira.mariadb.org/rest/api/1.0/shortcuts/820016/47140b6e0a9bc2e4913da06536125810/shortcuts.js?context=issuenavigation&context=issueaction","startTime":506.5,"connectEnd":506.5,"connectStart":506.5,"domainLookupEnd":506.5,"domainLookupStart":506.5,"fetchStart":506.5,"redirectEnd":0,"redirectStart":0,"requestStart":506.5,"responseEnd":1160.2000002861023,"responseStart":1160.2000002861023,"secureConnectionStart":506.5},{"duration":764.9000000953674,"initiatorType":"link","name":"https://jira.mariadb.org/s/3ac36323ba5e4eb0af2aa7ac7211b4bb-CDN/lu2cib/820016/12ta74/d176f0986478cc64f24226b3d20c140d/_/download/contextbatch/css/com.atlassian.jira.projects.sidebar.init,-_super,-project.issue.navigator,-jira.view.issue/batch.css?jira.create.linked.issue=true","startTime":506.7000002861023,"connectEnd":0,"connectStart":0,"domainLookupEnd":0,"domainLookupStart":0,"fetchStart":506.7000002861023,"redirectEnd":0,"redirectStart":0,"requestStart":0,"responseEnd":1271.6000003814697,"responseStart":0,"secureConnectionStart":0},{"duration":662.0999999046326,"initiatorType":"script","name":"https://jira.mariadb.org/s/5d5e8fe91fbc506585e83ea3b62ccc4b-CDN/lu2cib/820016/12ta74/d176f0986478cc64f24226b3d20c140d/_/download/contextbatch/js/com.atlassian.jira.projects.sidebar.init,-_super,-project.issue.navigator,-jira.view.issue/batch.js?jira.create.linked.issue=true&locale=en","startTime":506.90000009536743,"connectEnd":506.90000009536743,"connectStart":506.90000009536743,"domainLookupEnd":506.90000009536743,"domainLookupStart":506.90000009536743,"fetchStart":506.90000009536743,"redirectEnd":0,"redirectStart":0,"requestStart":506.90000009536743,"responseEnd":1169,"responseStart":1169,"secureConnectionStart":506.90000009536743},{"duration":1261.2999997138977,"initiatorType":"script","name":"https://jira.mariadb.org/s/d41d8cd98f00b204e9800998ecf8427e-CDN/lu2cib/820016/12ta74/1.0/_/download/batch/jira.webresources:bigpipe-js/jira.webresources:bigpipe-js.js","startTime":510.1000003814697,"connectEnd":510.1000003814697,"connectStart":510.1000003814697,"domainLookupEnd":510.1000003814697,"domainLookupStart":510.1000003814697,"fetchStart":510.1000003814697,"redirectEnd":0,"redirectStart":0,"requestStart":510.1000003814697,"responseEnd":1771.4000000953674,"responseStart":1771.4000000953674,"secureConnectionStart":510.1000003814697},{"duration":1832.1999998092651,"initiatorType":"script","name":"https://jira.mariadb.org/s/d41d8cd98f00b204e9800998ecf8427e-CDN/lu2cib/820016/12ta74/1.0/_/download/batch/jira.webresources:bigpipe-init/jira.webresources:bigpipe-init.js","startTime":510.2000002861023,"connectEnd":510.2000002861023,"connectStart":510.2000002861023,"domainLookupEnd":510.2000002861023,"domainLookupStart":510.2000002861023,"fetchStart":510.2000002861023,"redirectEnd":0,"redirectStart":0,"requestStart":510.2000002861023,"responseEnd":2342.4000000953674,"responseStart":2342.4000000953674,"secureConnectionStart":510.2000002861023},{"duration":588.2999997138977,"initiatorType":"xmlhttprequest","name":"https://jira.mariadb.org/rest/webResources/1.0/resources","startTime":1318.1000003814697,"connectEnd":1318.1000003814697,"connectStart":1318.1000003814697,"domainLookupEnd":1318.1000003814697,"domainLookupStart":1318.1000003814697,"fetchStart":1318.1000003814697,"redirectEnd":0,"redirectStart":0,"requestStart":1318.1000003814697,"responseEnd":1906.4000000953674,"responseStart":1906.4000000953674,"secureConnectionStart":1318.1000003814697}],"fetchStart":1,"domainLookupStart":1,"domainLookupEnd":1,"connectStart":1,"connectEnd":1,"requestStart":272,"responseStart":433,"responseEnd":447,"domLoading":492,"domInteractive":2387,"domContentLoadedEventStart":2387,"domContentLoadedEventEnd":2440,"domComplete":3159,"loadEventStart":3159,"loadEventEnd":3160,"userAgent":"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)","marks":[{"name":"bigPipe.sidebar-id.start","time":2346.7000002861023},{"name":"bigPipe.sidebar-id.end","time":2347.7000002861023},{"name":"bigPipe.activity-panel-pipe-id.start","time":2347.800000190735},{"name":"bigPipe.activity-panel-pipe-id.end","time":2349.2000002861023},{"name":"activityTabFullyLoaded","time":2453.6000003814697}],"measures":[],"correlationId":"903a414e2c090b","effectiveType":"4g","downlink":9.2,"rtt":0,"serverDuration":99,"dbReadsTimeInMs":20,"dbConnsTimeInMs":31,"applicationHash":"9d11dbea5f4be3d4cc21f03a88dd11d8c8687422","experiments":[]}}