Files
scylladb/cdc
Calle Wilund 8a6b72f47e cdc: Add pre-image select generator method
Based on a mutation, creates a pre-image select operation.

Note, this uses raw proxy query to shortcut parsing etc,
instead of trying to cache by generated query. Hypothesis is that
this is essentially faster.

The routine assumes all rows in a mutation touch same static/regular
columns. If this is not always true it will need additional
calculations.

Signed-off-by: Piotr Jastrzebski <piotr@scylladb.com>
2019-10-28 06:16:12 +01:00
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