sql - Oracle Text - "user filter command exited with status 127" -

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i'm trying create full text index using oracle text module on table containing blobs (files).

i'm using following script create index..

create index my_docs_doc_idx on test_blob(doc) indextype ctxsys.context;

i got result: 

[sql] create index my_docs_doc_idx on test_blob(doc) indextype ctxsys.context affected rows: 0 time: 0.190ms

however, when want test created index using...

select score(1) score, file_name test_blob contains (doc,'cola',1) > 0

i 0 results, no matter value add selector.

thanks article: https://community.oracle.com/thread/434057?start=0&tstart=0 found errors in ctx_user_index_errors table...

drg-11207: user filter command exited status 127

what cause of problem?

edit:

issue seems connected operation system. oracle installed on windows indexes fine, while 1 installed on redhat won't work @ all.


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