SQL logging

[efischer19]

Don't merge, just getting some data about our SQL usage

[efischer19]

SELECT
"submissions_submission"."id", "submissions_submission"."uuid", "submissions_submission"."student_item_id", "submissions_submission"."attempt_number", "submissions_submission"."submitted_at", "submissions_submission"."created_at", "submissions_submission"."raw_answer", "submissions_submission"."status", "submissions_studentitem"."id", "submissions_studentitem"."student_id", "submissions_studentitem"."course_id", "submissions_studentitem"."item_id", "submissions_studentitem"."item_type", "submissions_scoresummary"."id", "submissions_scoresummary"."student_item_id", "submissions_scoresummary"."highest_id", "submissions_scoresummary"."latest_id", "submissions_score"."id", "submissions_score"."student_item_id", "submissions_score"."submission_id", "submissions_score"."points_earned", "submissions_score"."points_possible", "submissions_score"."created_at", "submissions_score"."reset", T5."id", T5."uuid", T5."student_item_id", T5."attempt_number", T5."submitted_at", T5."created_at", T5."raw_answer", T5."status"
FROM
"submissions_submission"
INNER JOIN "submissions_studentitem" ON ( "submissions_submission"."student_item_id" = "submissions_studentitem"."id" )
LEFT OUTER JOIN "submissions_scoresummary" ON ( "submissions_studentitem"."id" = "submissions_scoresummary"."student_item_id" )
LEFT OUTER JOIN "submissions_score" ON ( "submissions_scoresummary"."latest_id" = "submissions_score"."id" )
LEFT OUTER JOIN "submissions_submission" T5 ON ( "submissions_score"."submission_id" = T5."id" )
WHERE 
(NOT ("submissions_submission"."status" = D) AND "submissions_studentitem"."item_type" = Peer_Submission AND "submissions_studentitem"."course_id" = Demo_Course) ORDER BY "submissions_submission"."submitted_at" DESC, "submissions_submission"."id"
DESC
'''

[efischer19]

So the Submission -> StudentItem relationship is an INNER join, and all the rest are OUTERs. I believe this is due to StudentItem -> ScoreSummary being a reverse OneToOne relationship, so there may or may not be any data from that point on in the relationship chain.

[robrap]

Thanks for this @efischer19.