Generate proper error for UNION DISTINCT with more than 255 columns [CORE6205] #6450
Submitted by: Jan Kohlmeyer (colaflasche)
I have a union with 256 or more columns and recive this error, if I execute this:
If I change to a union all, there is no Problem:
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Commented by: Sean Leyne (seanleyne)
There are numerous places in the code where the implementation was/is limited to 255 (type = WORD):
the limitations are from way back, before the project existed.
IMO, the limits are reasonable
Commented by: @livius2
Sean, thank you for the info.
>> 255 (type = WORD)
WORD or BYTE?
>> the limits are reasonable