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From:Alex Esterkin Date:May 22 2009 8:53pm
Subject:Re: Value objects and Protocol (WL#4760)
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When and how will Value objects be constructed, what structure or
object will own them and at what stage of query processing will
ownership of data be transferred?   What about Item_subselect or
Item_ref derivatives?  How will Item references handle data ownership
transfer?

And all this to improve copying of BLOBs?   One of the key strengths
of MySQL is the ability to do entire BLOB processing by reference,
without reading or copying....  Is this part of the newly announced
MySQL reengineering initiative?

Regards,

Alex Esterkin

2009/5/22 Konstantin Osipov <kostja@stripped>:
> * Øystein Grøvlen <Oystein.Grovlen@stripped> [09/05/22 21:05]:
>> The way I have understood it from discussions in the re-engineering
>> team, I am not going to transfer ownership of data from Item to Value.
>> So far, Value objects are just used for return values that can easily
>> converted to other types.
>
> Could you please explain with an example how it is going to be
> easier with your patch?
>
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Thread
Value objects and Protocol (WL#4760)Øystein Grøvlen22 May
  • Re: Value objects and Protocol (WL#4760)Konstantin Osipov22 May
    • Re: Value objects and Protocol (WL#4760)Alex Esterkin22 May
      • Re: Value objects and Protocol (WL#4760)Brian Aker22 May
        • Re: Value objects and Protocol (WL#4760)Alex Esterkin22 May
          • Re: Value objects and Protocol (WL#4760)Brian Aker22 May
          • Re: Value objects and Protocol (WL#4760)Sergei Golubchik23 May
        • Re: Value objects and Protocol (WL#4760)Konstantin Osipov23 May
          • Re: Value objects and Protocol (WL#4760)Brian Aker23 May
    • Re: Value objects and Protocol (WL#4760)Øystein Grøvlen22 May
      • Re: Value objects and Protocol (WL#4760)Konstantin Osipov22 May
        • Re: Value objects and Protocol (WL#4760)Alex Esterkin22 May
          • Re: Value objects and Protocol (WL#4760)Øystein Grøvlen25 May
        • Re: Value objects and Protocol (WL#4760)Øystein Grøvlen24 May
          • Re: Value objects and Protocol (WL#4760)Konstantin Osipov24 May
      • Re: Value objects and Protocol (WL#4760)Konstantin Osipov23 May
        • Re: Value objects and Protocol (WL#4760)Øystein Grøvlen25 May
          • Re: Value objects and Protocol (WL#4760)Michael Widenius6 Jun
            • Re: Value objects and Protocol (WL#4760)Øystein Grøvlen8 Jun
            • Re: Value objects and Protocol (WL#4760)Jay Pipes8 Jun
              • Re: Value objects and Protocol (WL#4760)Jay Pipes8 Jun
  • Re: Value objects and Protocol (WL#4760)Jay Pipes24 May
    • Re: Value objects and Protocol (WL#4760)Øystein Grøvlen25 May
      • Re: Value objects and Protocol (WL#4760)Jay Pipes26 May
    • Re: [Drizzle-discuss] Value objects and Protocol (WL#4760)Jim Starkey28 May
Re: Value objects and Protocol (WL#4760)Brian Aker22 May