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UDTF(User Defined Tablular Function) :- User defined tabular function works on one row as input and returns multiple rows as output. So here the relation is one to many. e.g Hive built in EXPLODE() function. Now lets take an array column USER_IDS as ARRAY<10,12,5,45> then SELECT EXPLODE(USER_IDS) as ID FROM T_USER. will give 10,12,5,45 as […]
Jul 13, 2016 · From there, BDD automagically ingests the Hive table, or the data_processing_CLI is manually called which prompts the BDD DGraph engine to go and sample (or read in full) the Hive dataset. This is great, and works well where the dataset is vast (this is Big Data, after all) and needs the sampling that DGraph provides.
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I am looking for multiple array columns solution.What if my table contains more than one array column if i use Lateral view explode in my Hive query it results Cartesian product. If i have . 10 array values in my Column1, 10 array values in Column2, 10 array values in Column3 . then the result will be 1000 rows . which is wrong.I want the
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%jdbc(hive) select did,meiti,meiti from temp.array_20181101_v2 . array_contains()：在字段类型为array中查找是否包含以及不包含某元素，在where后使用. 如： %jdbc(hive) select did,meiti. from temp.array_20181101_v2. where array_contains(meiti, '1118') and !array_contains(meiti, '1370') lateral view explode (array ...
Sep 01, 2016 · We've been seeing reports of Galaxy Note7 devices exploding while being charged, but that regularly happens with so many different models and brands, especially due to faulty chargers, that we ...