165c167,168
---
>   KEY `mdl_backlog_cou_ix` (`courseid`) ##Extra KEY##
201,203c204,207
---
>   KEY `mdl_blocinst_blo_ix` (`blockid`) ##Extra key?##
220,221c224,226
---
>   KEY `mdl_blocpinn_blo_ix` (`blockid`) ##Extra index?##
408,417c412,421
---
>   KEY `mdl_choiansw_opt_ix` (`optionid`) ##extra key##
570c573
---
>   KEY `mdl_courcate_par_ix` (`parent`) ##extra key?##
714,717c715,719
---
>   KEY `mdl_datacomm_rec_ix` (`recordid`) ##extra key##
734,735c736,739
---
>   KEY `mdl_datacont_rec_ix` (`recordid`), ##extra key##
>   KEY `mdl_datacont_fie_ix` (`fieldid`) ##extra key##
759,760c763,765
---
>   KEY `mdl_datafiel_dat_ix` (`dataid`)  ##extra key##
769,774c774,780
---
>   KEY `mdl_datarati_rec_ix` (`recordid`)  ##extra key##
783,791c789,798
---
>   KEY `mdl_datareco_dat_ix` (`dataid`)  ##extra key##
1118,1119c1123,1125
---
>   KEY `mdl_foruqueu_dis_ix` (`discussionid`), ##extra key##
1767,1769c1770,1773
---
>   KEY `mdl_lessatte_ans_ix` (`answerid`) ##extra key##
1779,1787c1783,1794
---
>   KEY `mdl_lessbran_use_ix` (`userid`),##extra key##
>   KEY `mdl_lessbran_les_ix` (`lessonid`),##extra key##
>   KEY `mdl_lessbran_pag_ix` (`pageid`)##extra key##
1862,1863c1869,1872
---
>   KEY `mdl_lesshighscor_use_ix` (`userid`),##extra key##
>   KEY `mdl_lesshighscor_les_ix` (`lessonid`)##extra key##
1895,1901c1904,1912
---
>   KEY `mdl_lesstime_use_ix` (`userid`),##extra key##
>   KEY `mdl_lesstime_les_ix` (`lessonid`)##extra key##
2181,2182c2191,2193
---
>   KEY `mdl_ques_par_ix` (`parent`)##extra key##
2247c2258,2259
---
>   KEY `mdl_quescate_par_ix` (`parent`) ##extra key##
2293c2305,2307
---
>   KEY `mdl_quesdata_que_ix` (`question`),##extra key##
>   KEY `mdl_quesdata_dat_ix` (`datasetdefinition`)##extra key##
2436c2450,2451
---
>   KEY `mdl_quesrqpserv_typ_ix` (`typeid`)##extra key##
2482c2497,2501
---
>   KEY `mdl_quessess_att_ix` (`attemptid`),##extra key##
>   KEY `mdl_quessess_que_ix` (`questionid`),##extra key##
>   KEY `mdl_quessess_new_ix` (`newest`),##extra key##
>   KEY `mdl_quessess_new2_ix` (`newgraded`)##extra key##
2656,2664c2675,2687
---
>   KEY `mdl_quizquesvers_qui_ix` (`quiz`),##extra key##
>   KEY `mdl_quizquesvers_old_ix` (`oldquestion`),##extra key##
>   KEY `mdl_quizquesvers_new_ix` (`newquestion`),##extra key##
>   KEY `mdl_quizquesvers_ori_ix` (`originalquestion`)##extra key##
2774,2782c2795,2804
---
>   KEY `mdl_rolecapa_cap_ix` (`capability`)##extra key##
3366,3367c3382,3383
---
>   KEY `mdl_wikilock_wik_ix` (`wikiid`) ##extra key##
3398c3415,3416
---
>   KEY `mdl_wikipage_wik_ix` (`wiki`)##extra key##
3544c3562,3563
---
>   KEY `mdl_workrubr_wor_ix` (`workshopid`)##extra key##
3558c3577,3578
---
>   KEY `mdl_workstoc_wor_ix` (`workshopid`)##extra key##