SSIS Package not wanting to fetch metadata of temporary table

Question

I have an SSIS Package, which contains multiple flows.

Each flow is responsible for creating a \"staging\" table, which gets filled up after creation. These tables a

Answer 1

Another option (kind of a hack, but it works and doesn't require you to change your use of global temp tables) is to use a SET FMTONLY ON command in front of your actual query to send a fake "First result set" to SSIS with your correct column structure. So you can do something like

SET FMTONLY ON
select 0 as a, 1 as b, 'test' as C, GETDATE() as D
SET FMTONLY OFF

select a, b, c, d from ##TempTable

When SSIS runs sp_describe_first_result_set, it will return the metadata and column names of your FMTONLY command, and won't complain about not being able to determine the metadata of your temp table because it won't even try.