Hi! On Fri, 29 Jul 2022, 07:43 Alexander Barkov, <b...@mariadb.com> wrote:
> Hello Sergei, > > I have a couple of suggestions: > <cut> > I suggest considering these ways: > > > 1. Change "bool explicitly_nullable" to "bool explicit_nullability", > which will be: > > - false if nothing was specified > - true if NULL or NOT NULL was specified. > > > 2. Or don't store NOT_NULL_FLAG in Column_definition::flags at all. > > Add a new Column_definition enum member with three values for: > - not specified > - explicit NULL > - explicit NOT NULL > > This would require 4 or 8 bytes extra per field (and each field definition > is stored twice per table), so this is probably not a good idea. Regards, Monty
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