Regex Tokenize - Extra Columns option (add to last column)

[PeterGoldey]

The tokenize would be more powerful if in addition to Drop Extra with Warning / Without Warning / Error, you could opt to have extra tokens concatenated with the final column.

Example: I have a values in a column like these:

3yd-A2SELL-407471

3vd-AAABORMI-3238738

3vd-RMLSFL-RX-10326049

In all 3 cases, I want to split to 3 columns (key, mlsid, mlsnumber), though I only care about the last two.  But in the third example, the mlsnumber RX-10326049 actually contains a hyphen.  (Yes, the source for this data picked a very bad delimiter for a concatenated value).

I can parse this a lot of different ways - here's how I do it in SQL:

MlsId = substr(substr(listingkey, instr(listingkey, '-')+1), 1, instr(substr(listingkey, instr(listingkey, '-')+1), '-')-1)
MlsNumber = substr(substr(listingkey, instr(listingkey, '-')+1), instr(substr(listingkey, instr(listingkey, '-')+1), '-')+1);

With Regex tokenize, I can split to 4 or more columns and then with a formula test for a 4th+ column and re-concatenate.  BUT it would be awesome if in the Regex tokenize I could instead:

1. split to columns

2. # of columns 3

3. extra columns = ignore, add to final column

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