/*
* transfer_all_new_dbs()
*
* Responsible for upgrading all database. invokes routines to generate mappings and then
* physically link the databases.
*/
void
transfer_all_new_dbs(DbInfoArr *old_db_arr, DbInfoArr *new_db_arr,
char *old_pgdata, char *new_pgdata, char *old_tablespace)
{
int old_dbnum,
new_dbnum;
/* Scan the old cluster databases and transfer their files */
for (old_dbnum = new_dbnum = 0;
old_dbnum < old_db_arr->ndbs;
old_dbnum++, new_dbnum++)
{
DbInfo *old_db = &old_db_arr->dbs[old_dbnum],
*new_db = NULL;
FileNameMap *mappings;
int n_maps;
/*
* Advance past any databases that exist in the new cluster but not in
* the old, e.g. "postgres". (The user might have removed the
* 'postgres' database from the old cluster.)
*/
for (; new_dbnum < new_db_arr->ndbs; new_dbnum++)
{
new_db = &new_db_arr->dbs[new_dbnum];
if (strcmp(old_db->db_name, new_db->db_name) == 0)
break;
}
if (new_dbnum >= new_db_arr->ndbs)
pg_fatal("old database \"%s\" not found in the new cluster\n",
old_db->db_name);
mappings = gen_db_file_maps(old_db, new_db, &n_maps, old_pgdata,
new_pgdata);
if (n_maps)
{
print_maps(mappings, n_maps, new_db->db_name);
transfer_single_new_db(mappings, n_maps, old_tablespace);
}
/* We allocate something even for n_maps == 0 */
pg_free(mappings);
}
return;
}
/*
* transfer_all_new_dbs()
*
* Responsible for upgrading all database. invokes routines to generate mappings and then
* physically link the databases.
*/
const char *
transfer_all_new_dbs(DbInfoArr *old_db_arr,
DbInfoArr *new_db_arr, char *old_pgdata, char *new_pgdata)
{
int dbnum;
const char *msg = NULL;
prep_status("Restoring user relation files\n");
if (old_db_arr->ndbs != new_db_arr->ndbs)
pg_log(PG_FATAL, "old and new clusters have a different number of databases\n");
for (dbnum = 0; dbnum < old_db_arr->ndbs; dbnum++)
{
DbInfo *old_db = &old_db_arr->dbs[dbnum];
DbInfo *new_db = &new_db_arr->dbs[dbnum];
FileNameMap *mappings;
int n_maps;
pageCnvCtx *pageConverter = NULL;
if (strcmp(old_db->db_name, new_db->db_name) != 0)
pg_log(PG_FATAL, "old and new databases have different names: old \"%s\", new \"%s\"\n",
old_db->db_name, new_db->db_name);
n_maps = 0;
mappings = gen_db_file_maps(old_db, new_db, &n_maps, old_pgdata,
new_pgdata);
if (n_maps)
{
print_maps(mappings, n_maps, new_db->db_name);
#ifdef PAGE_CONVERSION
msg = setupPageConverter(&pageConverter);
#endif
transfer_single_new_db(pageConverter, mappings, n_maps);
pg_free(mappings);
}
}
prep_status(""); /* in case nothing printed */
check_ok();
return msg;
}
/*
* transfer_all_new_dbs()
*
* Responsible for upgrading all database. invokes routines to generate mappings and then
* physically link the databases.
*/
const char *
transfer_all_new_dbs(DbInfoArr *old_db_arr,
DbInfoArr *new_db_arr, char *old_pgdata, char *new_pgdata)
{
int old_dbnum,
new_dbnum;
const char *msg = NULL;
prep_status("%s user relation files\n",
user_opts.transfer_mode == TRANSFER_MODE_LINK ? "Linking" : "Copying");
/* Scan the old cluster databases and transfer their files */
for (old_dbnum = new_dbnum = 0;
old_dbnum < old_db_arr->ndbs;
old_dbnum++, new_dbnum++)
{
DbInfo *old_db = &old_db_arr->dbs[old_dbnum],
*new_db = NULL;
FileNameMap *mappings;
int n_maps;
pageCnvCtx *pageConverter = NULL;
/*
* Advance past any databases that exist in the new cluster but not in
* the old, e.g. "postgres". (The user might have removed the
* 'postgres' database from the old cluster.)
*/
for (; new_dbnum < new_db_arr->ndbs; new_dbnum++)
{
new_db = &new_db_arr->dbs[new_dbnum];
if (strcmp(old_db->db_name, new_db->db_name) == 0)
break;
}
if (new_dbnum >= new_db_arr->ndbs)
pg_log(PG_FATAL, "old database \"%s\" not found in the new cluster\n",
old_db->db_name);
n_maps = 0;
mappings = gen_db_file_maps(old_db, new_db, &n_maps, old_pgdata,
new_pgdata);
if (n_maps)
{
print_maps(mappings, n_maps, new_db->db_name);
#ifdef PAGE_CONVERSION
msg = setupPageConverter(&pageConverter);
#endif
transfer_single_new_db(pageConverter, mappings, n_maps);
pg_free(mappings);
}
}
prep_status(" "); /* in case nothing printed; pass a space so
* gcc doesn't complain about empty format
* string */
check_ok();
return msg;
}
