-UNION ALL - what is the simplest form
Balaraman, Anand 2012-08-16, 06:06
I am trying to consolidate one of my staged tables with a primary table
Simply need to merge 2 tables using UNION ALL.
Tried the following:
select * from main_table UNION ALL select * from stage_table
but, not able to execute it -> Error in semantic analysis: Top level
UNION is not supported currently; use a subquery for the UNION
But, HIVE language manual says:
UNION ALL is used to combine the result from multiple SELECT statements
into a single result set.
select_statement UNION ALL select_statement UNION ALL
Have I gone wrong with the syntax anywhere in my query ?
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