ie. Store them in a sort of table to avoid the problems with limited shared memory size?
Chris
Tom Lane wrote:
Log Message: ----------- Rearrange pg_subtrans handling as per recent discussion. pg_subtrans updates are no longer WAL-logged nor even fsync'd; we do not need to, since after a crash no old pg_subtrans data is needed again. We truncate pg_subtrans to RecentGlobalXmin at each checkpoint. slru.c's API is refactored a little bit to separate out the necessary decisions.
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