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Improve pg_upgrade commentary on multixact change

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Per gripe from Andres Freund
This commit is contained in:
Alvaro Herrera
2013-02-28 16:29:17 -03:00
parent 63d283ecd0
commit cd7d00ad65
3 changed files with 12 additions and 8 deletions
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5
contrib/pg_upgrade/pg_upgrade.h
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@ -109,7 +109,10 @@ extern char *output_files[];
#define VISIBILITY_MAP_CRASHSAFE_CAT_VER 201107031
/*
* pg_multixact format changed in this catversion:
* pg_multixact format changed in 9.3 commit 0ac5ad5134f2769ccbaefec73844f85,
* ("Improve concurrency of foreign key locking") which also updated catalog
* version to this value. pg_upgrade behavior depends on whether old and new
* server versions are both newer than this, or only the new one is.
*/
#define MULTIXACT_FORMATCHANGE_CAT_VER 201301231