fix varchar and group by
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1262bda374
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@ -133,7 +133,7 @@ public class Project4 {
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ratingDF.createOrReplaceTempView("Rating");
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// Compute the result.
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Dataset<Row> resultDF = spark.sql("SELECT DISTINCT STR(m.movieId) FROM Movie m, Rating r, User u WHERE m.movieId = r.movieId AND r.userId = u.userId AND u.occupation = " +
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Dataset<Row> resultDF = spark.sql("SELECT DISTINCT CONVERT(varchar(10), m.movieId) FROM Movie m, Rating r, User u WHERE m.movieId = r.movieId AND r.userId = u.userId AND u.occupation = " +
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conf.q3Occupation + " AND r.rating = " + conf.q3Rating);
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resultDF.show();
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resultDF.write().text(CS448Utils.resolveUri(conf.outPath, "query-3"));
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@ -175,7 +175,7 @@ public class Project4 {
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// "SELECT m.title, r.average FROM Movie m, (SELECT AVG(r.rating) as average FROM Rating r, User u WHERE r.userId = u.userId AND u.age = " + conf.q4Age + ") r, User u WHERE m.movieId = r.movieId AND r.userId = u.userId AND u.age = " +
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// conf.q4Age);
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Dataset<Row> resultDF = spark.sql(
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"SELECT m.title, AVG(r.rating) FROM Movie m, Rating r, User u WHERE m.movieId = r.movieId AND r.userId = u.userId AND u.age = " + conf.q4Age + " GROUP BY r.movieId");
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"SELECT m.title, AVG(r.rating) FROM Movie m, Rating r, User u WHERE m.movieId = r.movieId AND r.userId = u.userId AND u.age = " + conf.q4Age + " GROUP BY m.title");
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resultDF.show();
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resultDF.write().text(CS448Utils.resolveUri(conf.outPath, "query-4"));
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