Gaddam Sai Ram <gaddamsaira...@zohocorp.com> writes:
> We are implementing in-memory index. As a part of that, during
> index callbacks, under CurTransactionContext, we cache all the DMLs of a
> transaction in dlist(postgres's doubly linked list).
> We registered transaction callback, and in transaction pre-commit
> event(XACT_EVENT_PRE_COMMIT), we iterate through all cached DMLs(dlist) and
> populate in my in-memory data structure.
This sounds broken on its face --- if you want stuff to survive to
top-level commit, you need to keep it in TopTransactionContext.
CurTransactionContext might be a subtransaction's context that will
go away at subtransaction commit/abort.
regards, tom lane
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