You might remember this pg_upgrade bug report where the user complained
that user-defined tablespaces _inside_ the old cluster directory were
deleted by the old cluster delete script:
http://www.postgresql.org/message-id/e1thpdm-00018c...@wrigleys.postgresql.org
and my reply that we don't want to fix this:
http://www.postgresql.org/message-id/20121004191201.ga11...@momjian.us
However, creating a script that deletes data is never a good idea so I
have created the attached patch to avoid creating the script in these
cases, and issue a message to the user.
The test isn't perfect but it is probably close enough. I don't think
it is worth unlinking a possibly matching filename in such cases.
--
Bruce Momjian br...@momjian.ushttp://momjian.us
EnterpriseDB http://enterprisedb.com
+ It's impossible for everything to be true. +
diff --git a/contrib/pg_upgrade/check.c b/contrib/pg_upgrade/check.c
new file mode 100644
index a7d4a68..0be90ae
*** a/contrib/pg_upgrade/check.c
--- b/contrib/pg_upgrade/check.c
*** output_completion_banner(char *analyze_s
*** 246,255
by pg_upgrade so, once you start the new server, consider running:\n
%s\n\n, analyze_script_file_name);
! pg_log(PG_REPORT,
! Running this script will delete the old cluster's data files:\n
! %s\n,
! deletion_script_file_name);
}
--- 246,262
by pg_upgrade so, once you start the new server, consider running:\n
%s\n\n, analyze_script_file_name);
!
! if (deletion_script_file_name)
! pg_log(PG_REPORT,
! Running this script will delete the old cluster's data files:\n
! %s\n,
! deletion_script_file_name);
! else
! pg_log(PG_REPORT,
! Could not create a script to delete the old cluster's data files\n
! because user-defined tablespaces exist in the old cluster directory.\n
! The old cluster's contents must be deleted manually.\n);
}
*** create_script_for_old_cluster_deletion(c
*** 585,590
--- 592,609
FILE *script = NULL;
int tblnum;
+ /*
+ * Some users (oddly) create tablespaces inside the cluster data
+ * directory. We can't create a proper old cluster delete script
+ * in that case.
+ */
+ for (tblnum = 0; tblnum os_info.num_old_tablespaces; tblnum++)
+ {
+ if (strncmp(os_info.old_tablespaces[tblnum], old_cluster.pgdata,
+ strlen(old_cluster.pgdata)) == 0)
+ return;
+ }
+
*deletion_script_file_name = pg_malloc(MAXPGPATH);
prep_status(Creating script to delete old cluster);
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