Hello - I just spotted an oddity with all two custom DocTransformers we
sometimes use on Solr 6.3.0. This particular transformer in the example just
transforms a long (or int) into a sequence of bits. I just use it as an
convenience to compare minhashes with my eyeballs. First example is very
straightforward, fl=minhash:[binstr], show only the minhash field, but as a bit
sequence.
solr/search/select?omitHeader=true&wt=json&indent=true&rows=1&sort=id%20asc&q=*:*&fl=minhash:[binstr]
{
"response":{"numFound":96933,"start":0,"docs":[
{}]
}}
The document is empty! This also happens with another transformer. The next
example i also request the lang field:
solr/search/select?omitHeader=true&wt=json&indent=true&rows=1&sort=id
asc&q=*:*&fl=lang,minhash:[binstr]
{
"response":{"numFound":96933,"start":0,"docs":[
{
"lang":"nl"}]
}}
Ok, at least i now get the lang field, but the transformed minhash is nowhere
to be seen. In the next example i request all fields and the transformed
minhash:
/solr/search/select?omitHeader=true&wt=json&indent=true&rows=1&sort=id%20asc&q=*:*&fl=*,minhash:[binstr]
{
"response":{"numFound":96933,"start":0,"docs":[
{
"minhash":"1110110101111010100011010010101111100001110110010111101101111010",
...other fields here
"_version_":1553728923368423424}]
}}
So it seems that right now, i can only use a transformer properly if i request
all fields. I believe it used to work with all three examples just as you would
expect. But since i haven't used transformers for a while, i don't know at
which version it stopped working like that (if it ever did of course :)
Did i mess something up or did a bug creep on me?
Thanks,
Markus
