THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Row-set columns types | Name(Signature) | Description |
|---|---|---|
T | explode(ARRAY<T> a ARRAY<T>) | Explodes an array to multiple rows. Returns a row-set with a single column (col), one row for each element from the array. |
| int,T | posexplode(ARRAY<T> a ARRAY<T>) | Explodes an array to multiple rows with additional positional column of int type (position of items in the original array, starting with 0). Returns a row-set with two columns (pos,val), one row for each element from the array. |
Tkey,Tvalue | explode(m MAP<Tkey,Tvalue> m) | Explodes a map to multiple rows. Returns a row-set with a two columns (key,value) , one row for each key-value pair from the input map. (As of Hive 0.8.0.). |
T1,...,Tn | inline(a ARRAY<STRUCT<f1:T1,...,fn:Tn>> a) | Explodes an array of structs to multiple rows. Returns a row-set with N columns (N = number of top level elements in the struct), one row per struct from the array. (As of Hive 0.10.) |
| T1,...,Tn/r | stack(int r int,T1 V1 T1,...,Vn-1 Tn/r -1,Vn Tn/r) | Breaks up n values V1V1,...,Vn into r rows. Each row will have n/r columns. r must be constant. |
string1,...,stringn | json_tuple(string jsonStr,string ,k1 string,...,string knstring) | Takes JSON string and a set of n keys, and returns a tuple of n values. This is a more efficient version of the |
string 1,...,stringn | parse_url_tuple(string urlStr,string ,p1 string,...,string pn string) | Takes URL string and a set of n URL parts, and returns a tuple of n values. This is similar to the |
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