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authorNathan Bossart2025-04-09 19:27:08 +0000
committerNathan Bossart2025-04-09 19:27:08 +0000
commite2665efd0f4d2ae90d3245f9425d379d75c66645 (patch)
tree26f052de0f6850502d0a592e3331ef14eb7e057d
parent837cc73af29cd9c63515a6f2a36f54dd703a3a3f (diff)
pg_upgrade: Mention that we preserve database OIDs in a comment.
Oversight in commit aa01051418. Reported-by: Tom Lane <[email protected]> Discussion: https://postgr.es/m/4055696.1744134682%40sss.pgh.pa.us
-rw-r--r--src/bin/pg_upgrade/pg_upgrade.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/bin/pg_upgrade/pg_upgrade.c b/src/bin/pg_upgrade/pg_upgrade.c
index 72b5a5fde5a..d9db48dba0d 100644
--- a/src/bin/pg_upgrade/pg_upgrade.c
+++ b/src/bin/pg_upgrade/pg_upgrade.c
@@ -32,6 +32,9 @@
* We control all assignments of pg_authid.oid for historical reasons (the
* oids used to be stored in pg_largeobject_metadata, which is now copied via
* SQL commands), that might change at some point in the future.
+ *
+ * We control all assignments of pg_database.oid because we want the directory
+ * names to match between the old and new cluster.
*/