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fix varchar and group by

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This commit is contained in:
Max O'Cull 2019-04-20 22:07:35 -04:00
parent 1262bda374
commit 2113e885b3
1 changed files with 2 additions and 2 deletions
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4
p4/src/main/java/cs448/Project4.java
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@ -133,7 +133,7 @@ public class Project4 {
ratingDF.createOrReplaceTempView("Rating");
// Compute the result.
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 = " +
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 = " +
conf.q3Occupation + " AND r.rating = " + conf.q3Rating);
resultDF.show();
resultDF.write().text(CS448Utils.resolveUri(conf.outPath, "query-3"));
@ -175,7 +175,7 @@ public class Project4 {
// "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 = " +
// conf.q4Age);
Dataset<Row> resultDF = spark.sql(
"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");
"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");
resultDF.show();
resultDF.write().text(CS448Utils.resolveUri(conf.outPath, "query-4"));