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Diffstat (limited to 'src/backend/utils/init/postinit.c')
| -rw-r--r-- | src/backend/utils/init/postinit.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/backend/utils/init/postinit.c b/src/backend/utils/init/postinit.c index f4247ea70d5..893be2f3ddb 100644 --- a/src/backend/utils/init/postinit.c +++ b/src/backend/utils/init/postinit.c @@ -722,6 +722,10 @@ InitPostgres(const char *in_dbname, Oid dboid, const char *username, * is critical for anything that reads heap pages, because HOT may decide * to prune them even if the process doesn't attempt to modify any * tuples.) + * + * FIXME: This comment is inaccurate / the code buggy. A snapshot that is + * not pushed/active does not reliably prevent HOT pruning (->xmin could + * e.g. be cleared when cache invalidations are processed). */ if (!bootstrap) { |