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d3a4d63387
fmgr_info(), in the TopMemoryContext. I couldn't see that the code actually leaked, but in general I think it's fragile to assume that pfree'ing an FmgrInfo along with its fn_extra field is enough to reclaim all the resources allocated by fmgr_info(). I changed the code to do its allocations in a new child context of TopMemoryContext, MbProcContext. When we want to release the allocations we can just reset the context, which is cleaner.