Major Description
Add typeof function in Spark to illastrate the underlying type of a value.
-- !query 0 select typeof(1) -- !query 0 schema struct<typeof(1):string> -- !query 0 output int -- !query 1 select typeof(1.2) -- !query 1 schema struct<typeof(1.2):string> -- !query 1 output decimal(2,1) -- !query 2 select typeof(array(1, 2)) -- !query 2 schema struct<typeof(array(1, 2)):string> -- !query 2 output array<int> -- !query 3 select typeof(a) from (values (1), (2), (3.1)) t(a) -- !query 3 schema struct<typeof(a):string> -- !query 3 output decimal(11,1) decimal(11,1) decimal(11,1)
presto
resto> select typeof(array[1]); _col0 ---------------- array(integer) (1 row)
PostgreSQL
postgres=# select pg_typeof(a) from (values (1), (2), (3.0)) t(a); pg_typeof ----------- numeric numeric numeric (3 rows)
Attachments
Issue Links
- is duplicated by
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SPARK-21232 New built-in SQL function - Data_Type
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- Resolved
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- links to