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DBD-SQLite-SQLcipher/lib/DBD
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Max Maischein 1fd1a0d15f Handle 'unknown' op in DBD::SQLite::VirtualTable::PerlData 
This patch adds code and a test when SQLite generates an 'unknown'
op for a table join in the BEST_INDEX() callback. The Perl code crashed
when such an op was generated for a JOIN criterion by the SQLite engine.

The SQLite engine creates an 'unknown' op on the following SQL
for example:

                select r.nodepath
                  from temp.scan_results r
                       left join temp.scan_results m
                             on r.nodepath = m.nodepath+1
                 where m.nodepath is null

The important part is that the right side of the left join must be
checked for IS NULL.
2019-01-25 19:05:07 +01:00
..
SQLite Handle 'unknown' op in DBD::SQLite::VirtualTable::PerlData 2019-01-25 19:05:07 +01:00
SQLite.pm release 1.62 2018-12-29 02:57:17 +09:00