Refactor per-page logic common to all redo routines to a new function.

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Every redo routine uses the same idiom to determine what to do to a page:
check if there's a backup block for it, and if not read, the buffer if the
block exists, and check its LSN. Refactor that into a common function,
XLogReadBufferForRedo, making all the redo routines shorter and more
readable.

This has no user-visible effect, and makes no changes to the WAL format.

Reviewed by Andres Freund, Alvaro Herrera, Michael Paquier.

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This commit is contained in:

Heikki Linnakangas

2014-08-13 15:39:08 +03:00

parent 26f8b99b24

commit f8f4227976

8 changed files with 1430 additions and 1739 deletions

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src/backend/access/heap/heapam.c

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