Piotr Sarna
be2ef862bd
cql3: enable ghost row deletion via CQL
...
This commit allows accepting a CQL request to clear ghost rows
from a given view partition range. Currently its syntax is a purposely
convoluted mix of existing keywords, which makes sure that the statement
is never issued by mistake. Example runs:
-- try deleting all ghost rows, effectively performs a paged full scan
PRUNE MATERIALIZED VIEW my_mv;
-- try deleting ghost rows from a single view partition
PRUNE MATERIALIZED VIEW my_mv WHERE mv_pk = 3;
-- try deleting ghost rows from a token range (effective full scans)
PRUNE MATERIALIZED VIEW my_mv WHERE TOKEN(mv_pk) > 7 AND TOKEN(mv_pk) < 42
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