So, I should be able to achieve such a union of columns by writing some C++ code, right?
I'm building a wrapper to do some specialized loading and queries. I will send you an example later today. Mark Hansen President & Founder Digital Brand Mine - developers of Megalytic http://megalytic.com http://digitalbrandmine.com On Jun 7, 2013, at 10:40 PM, "K. John Wu" <[email protected]> wrote: > Hi, Mark, > > We did intent -a option to create a union of the columns. Note that > this operation will assume the columns did not exist in the first > table to be NULLs. > > Anyway, if you have a small example you can share with us, I will take > a look into this problem over the weekend. > > John > > > On 6/3/13 8:17 PM, Mark Hansen wrote: >> I have 2 tables: X and Y. I want to append the into a new table Z. >> So, I do this: >> >> ibis -a X to ./Z >> >> That works fine, and Z is now identical to X. Then, I do this: >> >> ibis -a Y to ./Z >> >> It seems to append the rows, but the ./Z/-part.txt file is not the >> UNION of X and Y as I expected. Instead, it is identical to >> ./Y/-part.txt. The columns from both X and Y are there as files under >> ./Z, it is just the ./Z/-part.txt which does not have all the columns. >> >> What am I missing? >> >> >> >> >> _______________________________________________ >> FastBit-users mailing list >> [email protected] >> https://hpcrdm.lbl.gov/cgi-bin/mailman/listinfo/fastbit-users >> _______________________________________________ FastBit-users mailing list [email protected] https://hpcrdm.lbl.gov/cgi-bin/mailman/listinfo/fastbit-users
