On 12/7/16 5:50 AM, Kohei KaiGai wrote:
If and when this structure is fetched from the tuple, its @ptr_block is initialized to NULL. Once it is supplied to a function which references a part of blocks, type specific code can load sub-matrix from the toast relation, then update the @ptr_block not to load the sub-matrix from the toast multiple times. I'm not certain whether it is acceptable behavior/manner.
I'm glad you're looking into this. The 1G limit is becoming a larger problem every day.
Have you considered using ExpandedObjects to accomplish this? I don't think the API would work as-is, but I suspect there's other places where we'd like to be able to have this capability (arrays and JSONB come to mind).
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