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In pg_upgrade, remove functions that did sequential array scans looking

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up relations, but rather order old/new relations and use the same array
index value for both.  This should speed up pg_upgrade for databases
with many relations.
This commit is contained in:
Bruce Momjian
2011-01-08 13:44:44 -05:00
parent ebaf648ad2
commit 002c105a07
5 changed files with 37 additions and 109 deletions
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9
contrib/pg_upgrade/pg_upgrade.c
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@ -229,7 +229,7 @@ prepare_new_databases(void)
* Install support functions in the database accessed by
* GLOBALS_DUMP_FILE because it can preserve pg_authid.oid.
*/
install_support_functions_in_db(os_info.user);
install_support_functions_in_new_db(os_info.user);
/*
* We have to create the databases first so we can install support
@ -244,6 +244,7 @@ prepare_new_databases(void)
GLOBALS_DUMP_FILE, log_opts.filename);
check_ok();
/* we load this to get a current list of databases */
get_db_and_rel_infos(&new_cluster);
stop_postmaster(false, false);
@ -266,7 +267,7 @@ create_new_objects(void)
/* skip db we already installed */
if (strcmp(new_db->db_name, os_info.user) != 0)
install_support_functions_in_db(new_db->db_name);
install_support_functions_in_new_db(new_db->db_name);
}
check_ok();
@ -279,11 +280,11 @@ create_new_objects(void)
DB_DUMP_FILE, log_opts.filename);
check_ok();
/* regenerate now that we have db schemas */
/* regenerate now that we have objects in the databases */
dbarr_free(&new_cluster.dbarr);
get_db_and_rel_infos(&new_cluster);
uninstall_support_functions();
uninstall_support_functions_from_new_cluster();
stop_postmaster(false, false);
}