database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-27 12:41:57 +03:00
Code Activity

Remove spclocation field from pg_tablespace

Browse Source 
Instead, add a function pg_tablespace_location(oid) used to return
the same information, and do this by reading the symbolic link.

Doing it this way makes it possible to relocate a tablespace when the
database is down by simply changing the symbolic link.
This commit is contained in:
Magnus Hagander
2011-12-07 10:35:00 +01:00
parent c6e3ac11b6
commit 16d8e594ac
13 changed files with 114 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
contrib/pg_upgrade/tablespace.c
View File

@ -44,12 +44,18 @@ get_tablespace_paths(void)
PGresult *res;
int tblnum;
int i_spclocation;
char query[QUERY_ALLOC];
res = executeQueryOrDie(conn,
"SELECT spclocation "
"FROM pg_catalog.pg_tablespace "
"WHERE spcname != 'pg_default' AND "
" spcname != 'pg_global'");
snprintf(query, sizeof(query),
"SELECT %s "
"FROM pg_catalog.pg_tablespace "
"WHERE spcname != 'pg_default' AND "
" spcname != 'pg_global'",
/* 9.2 removed the spclocation column */
(GET_MAJOR_VERSION(old_cluster.major_version) <= 901) ?
"t.spclocation" : "pg_catalog.pg_tablespace_location(oid) AS spclocation");
res = executeQueryOrDie(conn, "%s", query);
if ((os_info.num_tablespaces = PQntuples(res)) != 0)
os_info.tablespaces = (char **) pg_malloc(