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Re: XID formatting and SLRU refactorings (was: Add 64-bit XIDs into PostgreSQL 15) - Mailing list pgsql-hackers

From Maxim Orlov
Subject Re: XID formatting and SLRU refactorings (was: Add 64-bit XIDs into PostgreSQL 15)
Date
Msg-id CACG=ezYLaa=qH=RQ__1EtL6LNmJzZyTsc6wiRHBbC=2GieDsmg@mail.gmail.com
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In response to Re: XID formatting and SLRU refactorings (was: Add 64-bit XIDs into PostgreSQL 15)  (Aleksander Alekseev <aleksander@timescale.com>)
Responses Re: XID formatting and SLRU refactorings (was: Add 64-bit XIDs into PostgreSQL 15)  (Aleksander Alekseev <aleksander@timescale.com>)
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Hi!

Here is a rebased version of the patch set.
Major changes are:
1. Fix rare replica fault.
   Upon page pruning in heap_page_prune, page fragmentation repair is determined by
   a parameter repairFragmentation. At the same time, on a replica, upon handling XLOG_HEAP2_PRUNE record type
   in heap_xlog_prune, we always call heap_page_prune_execute with repairFragmentation parameter equal to true.
   This caused page inconsistency and lead to the crash of the replica. Fix this by adding new flag in
   struct xl_heap_prune.
2. Add support for meson build.
3. Add assertion "buffer is locked" in HeapTupleCopyBaseFromPage.
4. Add assertion "buffer is locked exclusive" in heap_page_shift_base.
5. Prevent excessive growth of xmax in heap_prepare_freeze_tuple.

As always, reviews are very welcome!

--
Best regards,
Maxim Orlov.
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