I'm querying a large table with 99 columns of different types and expect to get a resultset of 3000 records. If I use a TYPE_SCROLL_INSENSITIVE ResultSet and iterate through it calling the next() method inside a while loop, It seems that after the second fetch to the database, the result set gets corrupted. In particular, I get blocks of records duplicated between consecutive fecthes, they seem to incorrectly overlap to the previous block.
Practically speaking, when iteration reaches the 1004th record, I get the 135th record instead of the correct one. The 1005th record is actually the 136th and so on. Then at record 1020th I find a duplicate of the 162th record (skipping 11 records), at record 1038th there is another hole of 11 records. This keeps going on and at the 2009th record there is a jump back to the 388th record.
I'm not performing any suspicious operation while iterating through the result set, I just invoke the getObject() method to get all row values and store them in a list of Object arrays.
I had to avoid this issue using a TYPE_FORWARD_ONLY ResultSet.
This behaviour was detected with:
- JDBC drivers versions 14.10 and 15.10
- database version 13.10 and 14.10
Please, can anyone confirm this is an unexpected behaviour of the Teradata JDBC driver?
Thanks!
BR,
Simone
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