Fix: may cause UAF problem in get_size_from_segDBs#326

avamingli merged 2 commits intoapache:mainapache/cloudberry:mainfrom

jiaqizho:fix-uaf-in-udf-get-size-from-segsjiaqizho/cloudberrydb:fix-uaf-in-udf-get-size-from-segsCopy head branch name to clipboard