Question

I process data with two maps per records, one is (“&”,”=”)-formatted (id=111&name=…), the other one is (“;”,”=”)-formatted.

Of course, I could :

• replace “;” by “&” in the data
• or define
  • one of them as MAP with “COLLECTION ITEMS TERMINATED BY …” specified at declaration
  • and treat the other map as STRING and parse it with str_to_map() at each query.

But isn’t there any more elegant solution like multiple collection format declaration for the same table?

Thank.

Answer 1

How about writing your own Writable and SerDe to create a table with 4 columns:

• String key1
• String value1
• String key2
• String value2

You could use this example as a starting point.