mirror/postgresql
2
0
Fork 0
mirror of https://git.postgresql.org/git/postgresql.git synced 2024-12-09 08:10:09 +08:00
Code Issues Packages Projects Releases Wiki Activity

Simplify structure of query used to gather database object information

Browse Source 
in pg_upgrade.
This commit is contained in:
Bruce Momjian 2011-04-07 06:22:40 -04:00
parent d8d429890d
commit e69d32158c
1 changed files with 14 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
contrib/pg_upgrade/info.c
View File

@ -255,27 +255,25 @@ get_rel_infos(ClusterInfo *cluster, DbInfo *dbinfo)
snprintf(query, sizeof(query),
"SELECT c.oid, n.nspname, c.relname, "
" c.relfilenode, t.spclocation "
"FROM pg_catalog.pg_class c JOIN "
" pg_catalog.pg_namespace n "
" ON c.relnamespace = n.oid "
" LEFT OUTER JOIN pg_catalog.pg_tablespace t "
" ON c.reltablespace = t.oid "
"WHERE (( n.nspname NOT IN ('pg_catalog', 'information_schema', 'binary_upgrade') "
" AND c.oid >= %u "
" ) OR ( "
" n.nspname = 'pg_catalog' "
" AND relname IN "
" ('pg_largeobject', 'pg_largeobject_loid_pn_index'%s) )) "
" AND relkind IN ('r','t', 'i'%s) "
"FROM pg_catalog.pg_class c JOIN pg_catalog.pg_namespace n "
" ON c.relnamespace = n.oid "
" LEFT OUTER JOIN pg_catalog.pg_tablespace t "
" ON c.reltablespace = t.oid "
"WHERE relkind IN ('r','t', 'i'%s) AND "
" ((n.nspname NOT IN ('pg_catalog', 'information_schema', 'binary_upgrade') AND "
" c.oid >= %u) "
" OR (n.nspname = 'pg_catalog' AND "
" relname IN ('pg_largeobject', 'pg_largeobject_loid_pn_index'%s) )) "
/* we preserve pg_class.oid so we sort by it to match old/new */
"ORDER BY 1;",
/* see the comment at the top of old_8_3_create_sequence_script() */
(GET_MAJOR_VERSION(old_cluster.major_version) <= 803) ?
"" : ", 'S'",
/* this oid allows us to skip system toast tables */
FirstNormalObjectId,
/* does pg_largeobject_metadata need to be migrated? */
(GET_MAJOR_VERSION(old_cluster.major_version) <= 804) ?
"" : ", 'pg_largeobject_metadata', 'pg_largeobject_metadata_oid_index'",
/* see the comment at the top of old_8_3_create_sequence_script() */
(GET_MAJOR_VERSION(old_cluster.major_version) <= 803) ?
"" : ", 'S'");
"" : ", 'pg_largeobject_metadata', 'pg_largeobject_metadata_oid_index'");
res = executeQueryOrDie(conn, query);