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49 lines
2.5 KiB
SQL
49 lines
2.5 KiB
SQL
DROP TABLE IF EXISTS test.local_statements;
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DROP TABLE IF EXISTS test.statements;
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CREATE TABLE test.local_statements ( statementId String, eventDate Date, eventHour DateTime, eventTime DateTime, verb String, objectId String, onCourse UInt8, courseId UInt16, contextRegistration String, resultScoreRaw Float64, resultScoreMin Float64, resultScoreMax Float64, resultSuccess UInt8, resultCompletition UInt8, resultDuration UInt32, resultResponse String, learnerId String, learnerHash String, contextId UInt16) ENGINE = MergeTree ORDER BY tuple();
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CREATE TABLE test.statements ( statementId String, eventDate Date, eventHour DateTime, eventTime DateTime, verb String, objectId String, onCourse UInt8, courseId UInt16, contextRegistration String, resultScoreRaw Float64, resultScoreMin Float64, resultScoreMax Float64, resultSuccess UInt8, resultCompletition UInt8, resultDuration UInt32, resultResponse String, learnerId String, learnerHash String, contextId UInt16) ENGINE = Distributed(test_shard_localhost, 'test', 'local_statements', sipHash64(learnerHash));
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INSERT INTO test.local_statements FORMAT CSV "2b3b04ee-0bb8-4200-906f-d47c48e56bd0","2016-08-25","2016-08-25 14:00:00","2016-08-25 14:43:34","http://adlnet.gov/expapi/verbs/passed","https://crmm.ru/xapi/courses/spp/2/0/3/2/8",0,1,"c13d788c-26e0-40e3-bacb-a1ff78ee1518",100,0,0,0,0,0,"","https://sberbank-school.ru/xapi/accounts/userid/94312","6f696f938a69b5e173093718e1c2bbf2",0
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SELECT avg(diff)
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FROM
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(
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SELECT *
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FROM
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(
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SELECT
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learnerHash,
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passed - eventTime AS diff
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FROM test.statements
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GLOBAL ANY INNER JOIN
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(
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SELECT
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learnerHash,
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argMax(eventTime, resultScoreRaw) AS passed
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FROM
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(
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SELECT
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learnerHash,
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eventTime,
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resultScoreRaw
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FROM test.statements
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WHERE (courseId = 1) AND (onCourse = 0)
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AND (verb = 'http://adlnet.gov/expapi/verbs/passed') AND (objectId = 'https://crmm.ru/xapi/courses/spp/1/1/0-1')
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ORDER BY eventTime ASC
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)
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GROUP BY learnerHash
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) USING (learnerHash)
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WHERE (courseId = 1) AND (onCourse = 0)
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AND (verb = 'http://adlnet.gov/expapi/verbs/interacted') AND (eventTime <= passed) AND (diff > 0)
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ORDER BY eventTime DESC
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LIMIT 1 BY learnerHash
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)
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ORDER BY diff DESC
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LIMIT 7, 126
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);
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DROP TABLE test.local_statements;
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DROP TABLE test.statements;
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