[Building Sakai] Question pool slowness

[George Pipkin]

Do you think that having them there has any impact ?

                   - George


Karen Tsao wrote:
> Hi George,
>
> If you are using MySql, you don't need to add the four indexes in 
> sakai_samigo_post_schema_update.sql. They are duplicate indexes.
>
> By the way, the index VT_SAM_ITEMGRADING_AG_PUBITEM is not related to 
> editing Question Pool. As Will mentioned, they use this to improve 
> delivery and grading flow. You can gather your recent statistics and 
> see if you need to add this index.
>
> Thanks,
> Karen
>
> On Wed, Sep 9, 2009 at 9:32 AM, George Pipkin <gpp8p at virginia.edu 
> <mailto:gpp8p at virginia.edu>> wrote:
>
>     Hi -
>
>      Thanks Karen and Will for your responses.  I took a look at
>     our tables current setup, and it looks like we not only got the
>     hibernate-created indexes, but the ones mentioned in
>     the sakai_samigo_post_schema_update.sql  script.  Could this be
>     causing us difficulties ?
>
>                                  - George
>
>     mysql>  show create table SAM_PUBLISHEDITEMTEXT_T;
>     | SAM_PUBLISHEDITEMTEXT_T | CREATE TABLE `SAM_PUBLISHEDITEMTEXT_T` (
>      `ITEMTEXTID` bigint(20) NOT NULL auto_increment,
>      `ITEMID` bigint(20) NOT NULL,
>      `SEQUENCE` int(11) NOT NULL,
>      `TEXT` varchar(4000) default NULL,
>      PRIMARY KEY  (`ITEMTEXTID`),
>      KEY `FK9C790A638152036E` (`ITEMID`),
>      KEY `SAM_PUBITEMTEXT_ITEM_I` (`ITEMID`),
>      KEY `FK9C790A6331446627` (`ITEMID`),
>      CONSTRAINT `FK9C790A6331446627` FOREIGN KEY (`ITEMID`) REFERENCES
>     `SAM_PUBLISHEDITEM_T` (`ITEMID`)
>     ) ENGINE=InnoDB DEFAULT CHARSET=utf8 |
>
>     mysql> show create table SAM_PUBLISHEDANSWER_T;
>     | SAM_PUBLISHEDANSWER_T | CREATE TABLE `SAM_PUBLISHEDANSWER_T` (
>      `ANSWERID` bigint(20) NOT NULL auto_increment,
>      `ITEMTEXTID` bigint(20) NOT NULL,
>      `itemId` bigint(20) NOT NULL,
>      `TEXT` varchar(4000) default NULL,
>      `SEQUENCE` int(11) NOT NULL,
>      `LABEL` varchar(20) default NULL,
>      `ISCORRECT` varchar(1) default NULL,
>      `GRADE` varchar(80) default NULL,
>      `SCORE` float default NULL,
>      PRIMARY KEY  (`ANSWERID`),
>      KEY `FKB41EA361B9BF0B8E` (`itemId`),
>      KEY `FKB41EA361CBA347DB` (`ITEMTEXTID`),
>      KEY `SAM_PUBANSWER_ITEMTEXT_I` (`ITEMTEXTID`),
>      KEY `SAM_PUBANSWER_ITEM_I` (`itemId`),
>      KEY `FKB41EA3618152036E` (`itemId`),
>      KEY `FKB41EA36131446627` (`itemId`),
>      KEY `FKB41EA36126460817` (`ITEMTEXTID`),
>      CONSTRAINT `FKB41EA36126460817` FOREIGN KEY (`ITEMTEXTID`)
>     REFERENCES `SAM_PUBLISHEDITEMTEXT_T` (`ITEMTEXTID`),
>      CONSTRAINT `FKB41EA36131446627` FOREIGN KEY (`itemId`) REFERENCES
>     `SAM_PUBLISHEDITEM_T` (`ITEMID`)
>     ) ENGINE=InnoDB DEFAULT CHARSET=utf8 |
>
>     mysql> show create table SAM_ITEMGRADING_T;
>     | SAM_ITEMGRADING_T | CREATE TABLE `SAM_ITEMGRADING_T` (
>      `ITEMGRADINGID` bigint(20) NOT NULL auto_increment,
>      `ASSESSMENTGRADINGID` bigint(20) NOT NULL,
>      `PUBLISHEDITEMID` int(11) NOT NULL,
>      `PUBLISHEDITEMTEXTID` int(11) NOT NULL,
>      `AGENTID` varchar(255) NOT NULL,
>      `SUBMITTEDDATE` datetime default NULL,
>      `PUBLISHEDANSWERID` int(11) default NULL,
>      `RATIONALE` varchar(4000) default NULL,
>      `ANSWERTEXT` varchar(4000) default NULL,
>      `AUTOSCORE` float default NULL,
>      `OVERRIDESCORE` float default NULL,
>      `COMMENTS` varchar(4000) default NULL,
>      `GRADEDBY` varchar(255) default NULL,
>      `GRADEDDATE` datetime default NULL,
>      `REVIEW` int(11) default NULL,
>      `ATTEMPTSREMAINING` int(11) default NULL,
>      `LASTDURATION` varchar(36) default NULL,
>      PRIMARY KEY  (`ITEMGRADINGID`),
>      KEY `FKB68E6756C42AA2BC` (`PUBLISHEDITEMID`),
>      KEY `FKB68E6756E5D3D24D` (`ASSESSMENTGRADINGID`),
>      KEY `FKB68E6756A75F9029` (`PUBLISHEDITEMTEXTID`),
>      KEY `FKB68E6756D4927` (`PUBLISHEDANSWERID`),
>      KEY `SAM_ASSESSMENTGRADING_I` (`ASSESSMENTGRADINGID`),
>      KEY `SAM_ITEMGRADING_PUBANS_I` (`PUBLISHEDANSWERID`),
>      KEY `SAM_ITEMGRADING_ITEM_I` (`PUBLISHEDITEMID`),
>      KEY `SAM_ITEMGRADING_ITEMTEXT_I` (`PUBLISHEDITEMTEXTID`),
>      KEY `FKB68E675667B430D5` (`ASSESSMENTGRADINGID`),
>      CONSTRAINT `FKB68E675667B430D5` FOREIGN KEY
>     (`ASSESSMENTGRADINGID`) REFERENCES `SAM_ASSESSMENTGRADING_T`
>     (`ASSESSMENTGRADINGID`)
>     ) ENGINE=InnoDB DEFAULT CHARSET=utf8 |
>
>     mysql> show create table SAM_PUBLISHEDANSWERFEEDBACK_T;
>     | SAM_PUBLISHEDANSWERFEEDBACK_T | CREATE TABLE
>     `SAM_PUBLISHEDANSWERFEEDBACK_T` (
>      `ANSWERFEEDBACKID` bigint(20) NOT NULL auto_increment,
>      `ANSWERID` bigint(20) NOT NULL,
>      `TYPEID` varchar(255) default NULL,
>      `TEXT` varchar(4000) default NULL,
>      PRIMARY KEY  (`ANSWERFEEDBACKID`),
>      KEY `FK6CB765A610DF4559` (`ANSWERID`),
>      KEY `SAM_PUBANSWERFB_ANSWER_I` (`ANSWERID`),
>      KEY `FK6CB765A624D77573` (`ANSWERID`),
>      CONSTRAINT `FK6CB765A624D77573` FOREIGN KEY (`ANSWERID`)
>     REFERENCES `SAM_PUBLISHEDANSWER_T` (`ANSWERID`)
>     ) ENGINE=InnoDB DEFAULT CHARSET=utf8 |
>     mysql> show create table SAM_ASSESSMENTGRADING_T;
>     | SAM_ASSESSMENTGRADING_T | CREATE TABLE `SAM_ASSESSMENTGRADING_T` (
>      `ASSESSMENTGRADINGID` bigint(20) NOT NULL auto_increment,
>      `PUBLISHEDASSESSMENTID` bigint(20) NOT NULL,
>      `AGENTID` varchar(255) NOT NULL,
>      `SUBMITTEDDATE` datetime default NULL,
>      `ISLATE` varchar(1) NOT NULL,
>      `FORGRADE` int(11) NOT NULL,
>      `TOTALAUTOSCORE` float default NULL,
>      `TOTALOVERRIDESCORE` float default NULL,
>      `FINALSCORE` float default NULL,
>      `COMMENTS` varchar(4000) default NULL,
>      `GRADEDBY` varchar(255) default NULL,
>      `GRADEDDATE` datetime default NULL,
>      `STATUS` int(11) NOT NULL,
>      `ATTEMPTDATE` datetime default NULL,
>      `TIMEELAPSED` int(11) default NULL,
>      PRIMARY KEY  (`ASSESSMENTGRADINGID`),
>      KEY `FKDAED4C879E4AF02B` (`PUBLISHEDASSESSMENTID`),
>      KEY `SAM_PUBLISHEDASSESSMENT_I` (`PUBLISHEDASSESSMENTID`),
>      KEY `SAM_ASSGRAD_AID_PUBASSEID_T` (`AGENTID`,`PUBLISHEDASSESSMENTID`)
>     ) ENGINE=InnoDB DEFAULT CHARSET=utf8 |
>
>     mysql>
>
>