Online DDL: issue a ReloadSchema at the completion of any migration (#10766)
Online DDL: issue a ReloadSchema at the completion of any migration (#10766)

* make tmClient a struct member

Signed-off-by: Shlomi Noach <f07557902aa82e6b2846c90bd293a06970411e12@users.noreply.github.com>

* ReloadSchema at the end of any successful migration

Signed-off-by: Shlomi Noach <f07557902aa82e6b2846c90bd293a06970411e12@users.noreply.github.com>

* tmClient doesn't work well as a fiel because it's too soon to init in Open()

Signed-off-by: Shlomi Noach <f07557902aa82e6b2846c90bd293a06970411e12@users.noreply.github.com>
mahak/vitess,mahak/vitess,vitessio/vitess,mahak/vitess,vitessio/vitess,vitessio/vitess,vitessio/vitess,vitessio/vitess,vitessio/vitess,mahak/vitess,mahak/vitess,mahak/vitess,vitessio/vitess,mahak/vitess,vitessio/vitess,mahak/vitess