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Reduce default value of max_prepared_transactions from 50 to 5. This
saves nearly 700kB in the default shared memory segment size, which seems worthwhile, and it is a feature that many users won't use anyway. Per Heikki's argument, there is no point in a compromise value --- those who are using 2PC at all will probably want it at least equal to max_connections. But we can't set it to zero by default without breaking the prepared_xacts regression test.
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- doc/src/sgml/runtime.sgml 2 additions, 2 deletionsdoc/src/sgml/runtime.sgml
- src/backend/access/transam/twophase.c 2 additions, 2 deletionssrc/backend/access/transam/twophase.c
- src/backend/utils/misc/guc.c 2 additions, 2 deletionssrc/backend/utils/misc/guc.c
- src/backend/utils/misc/postgresql.conf.sample 1 addition, 1 deletionsrc/backend/utils/misc/postgresql.conf.sample
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