This patch adds an xfailing test reproducing the bug in issue #12762:
When a SELECT uses a secondary index to list rows, if there is also a
PER PARTITION LIMIT given, Scylla forgets to apply it.
The test shows that the PER PARTITION LIMIT is correctly applied when
the index doesn't exist, but forgotten when the index is added.
In contrast, both cases work correctly in Cassandra.
This patch also adds a second variant of this test, which adds filtering
to the mix, and ensures that PER PARTITION LIMIT 1 doesn't give up on the
first row of each partition - but rather looks for the first row that
passes the filter, and only then moves on to the next partition.
Refs #12762.
Signed-off-by: Nadav Har'El <nyh@scylladb.com>
Closes#14248
3a73048bc9