Hi, I just discovered and fixed a strange bug ibis::category::selectStrings. If you have a column with only one distinct value and some empty values, it returns invalid results. It seems that in this case, that the dictionary size is 1 (the implicit empty string doesn't count for 1), and then the following code is wrong:
if (dic.size() == 1) {
return new std::vector<std::string>(mask.cnt(), dic[1]);
}
Simply removing this block fixed the issue.
Before:
dom@vanilla 1 % tcapi . 1=1 p_name2 s
tcapi: applying "1=1" on data in . produced 4 hits
p_name2[4]="name2@43" "name2@43" "name2@43" "name2@43"
After:
dom@vanilla 1 % tcapi . 1=1 p_name2 s
tcapi: applying "1=1" on data in . produced 4 hits
p_name2[4]="" "name2@43" "" ""
The p_name2 column actually contains "", "name2@43", "", "", so the second test
is correct.
Thanks,
Dominique Prunier
APG Lead Developper
[cid:[email protected]]
4388, rue Saint-Denis
Bureau 309
Montreal (Quebec) H2J 2L1
Tel. +1 514-842-6767 x310
Fax +1 514-842-3989
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