[RFC PATCH 11/23] xrow: allow to store flags in DML requests

[Konstantin Osipov]

* Vladimir Davydov <vdavydov.dev at gmail.com> [18/07/08 22:52]:
> In the scope of #2129 we need to mark REPLACE statements for which we
> generated DELETE in secondary indexes so that we don't generate DELETE
> again on compaction. We also need to mark DELETE statements that were
> generated on compaction so that we can skip them on SELECT.
> 
> Let's add flags field to struct vy_stmt. Flags are stored both in memory
> and on disk so to encode/decode them we also need to add a new iproto
> key (IPROTO_FLAGS) and the corresponding field to struct request.

We have been avoiding IPROTO_FLAGS so far. Can we make this
member engine-local, i.e. make sure it's only visible/usable for vinyl rows?

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Konstantin Osipov, Moscow, Russia, +7 903 626 22 32
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