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While processing toast changes in logical decoding, we rejigger the tuple change to point to in-memory toast tuples instead to on-disk toast tuples. And, to make sure the memory accounting is correct, we were subtracting the old change size and then after re-computing the new tuple, re-adding its size at the end. Now, if there is any error before we add the new size, we will release the changes and that will update the accounting info (subtracting the size from the counters). And we were underflowing there which leads to an assertion failure in assert enabled builds and wrong memory accounting in reorder buffer otherwise. Author: Bertrand Drouvot Reviewed-by: Amit Kapila Backpatch-through: 13, where memory accounting was introduced Discussion: https://postgr.es/m/92b0ee65-b8bd-e42d-c082-4f3f4bf12d34@amazon.com |
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