Wrong search results - Oracle 10.1.0.5

Question

I have a text index based on a file datastore which has around 25,000 documents (pdf, doc and xls). In some cases the search returns documents that do not have the search string.
I have tried dropping and recreating the index, but the problem doesn't seem to go away.
Here is the table definition and create index command.
create table SK_FILES (
ID NUMBER not null,
ISSUE_ID NUMBER,
DESCRIPTION VARCHAR2(512),
PATH VARCHAR2(512)
CREATE INDEX SK_FILE_INDEX ON SK_FILES(PATH) INDEXTYPE IS ctxsys.context
PARAMETERS ('datastore COMMON_DIR')
I would appreciate your help.
Thanks,
Vijay

Answer 1

Following query fetches 116 rows
SELECT SCORE(4), SF.PATH, SF.ID FROM SK_FILES SF
WHERE CONTAINS(PATH,'gorla', 4) > 0
ORDER BY SCORE(4) DESC
The document corresponding to one of the rows in the resultset (SF.ID=2162) does not have the word 'gorla' at all. But the document (2148) that contains the word is not in the resultset.
And, if I query the snippet for 2162, i get the bits from 2148.
Looks like oracle's internal document pointers are all jumbled up