X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/e660e609661edadc1ed5ad49d6e83e936b2f91cd..e057175ca964d7471154e02e5a511ef95523ad45:/db/migrate/021_move_to_innodb.rb?ds=inline diff --git a/db/migrate/021_move_to_innodb.rb b/db/migrate/021_move_to_innodb.rb index f9110cca6..6ef3587d1 100644 --- a/db/migrate/021_move_to_innodb.rb +++ b/db/migrate/021_move_to_innodb.rb @@ -1,44 +1,38 @@ -require 'migrate' +require "migrate" class MoveToInnodb < ActiveRecord::Migration - @@conv_tables = ['nodes', 'ways', 'way_tags', 'way_nodes', - 'current_way_tags', 'relation_members', - 'relations', 'relation_tags', 'current_relation_tags'] + @conv_tables = %w[nodes ways way_tags way_nodes current_way_tags relation_members relations relation_tags current_relation_tags] - @@ver_tbl = ['nodes', 'ways', 'relations'] + @ver_tbl = %w[nodes ways relations] def self.up - remove_index :current_way_tags, :name=> :current_way_tags_v_idx - remove_index :current_relation_tags, :name=> :current_relation_tags_v_idx + remove_index :current_way_tags, :name => :current_way_tags_v_idx + remove_index :current_relation_tags, :name => :current_relation_tags_v_idx - @@ver_tbl.each { |tbl| - change_column tbl, "version", :bigint, :limit => 20, :null => false - } + @ver_tbl.each do |tbl| + change_column tbl, "version", :bigint, :null => false + end - @@conv_tables.each { |tbl| - change_engine tbl, "InnoDB" - } - - @@ver_tbl.each { |tbl| - add_column "current_#{tbl}", "version", :bigint, :limit => 20, :null => false - # As the initial version of all nodes, ways and relations is 0, we set the - # current version to something less so that we can update the version in + @ver_tbl.each do |tbl| + add_column "current_#{tbl}", "version", :bigint, :null => false + # As the initial version of all nodes, ways and relations is 0, we set the + # current version to something less so that we can update the version in # batches of 10000 - tbl.classify.constantize.update_all("version=-1") - while tbl.classify.constantize.count(:conditions => {:version => -1}) > 0 - tbl.classify.constantize.update_all("version=(SELECT max(version) FROM #{tbl} WHERE #{tbl}.id = current_#{tbl}.id)", {:version => -1}, :limit => 10000) + tbl.classify.constantize.update_all(:version => -1) + while tbl.classify.constantize.where(:version => -1).count > 0 + tbl.classify.constantize.update_all("version=(SELECT max(version) FROM #{tbl} WHERE #{tbl}.id = current_#{tbl}.id)", { :version => -1 }, { :limit => 10000 }) end - # execute "UPDATE current_#{tbl} SET version = " + + # execute "UPDATE current_#{tbl} SET version = " + # "(SELECT max(version) FROM #{tbl} WHERE #{tbl}.id = current_#{tbl}.id)" - # The above update causes a MySQL error: - # -- add_column("current_nodes", "version", :bigint, {:null=>false, :limit=>20}) - # -> 1410.9152s - # -- execute("UPDATE current_nodes SET version = (SELECT max(version) FROM nodes WHERE nodes.id = current_nodes.id)") - # rake aborted! - # Mysql::Error: The total number of locks exceeds the lock table size: UPDATE current_nodes SET version = (SELECT max(version) FROM nodes WHERE nodes.id = current_nodes.id) - - # The above rails version will take longer, however will no run out of locks - } + # The above update causes a MySQL error: + # -- add_column("current_nodes", "version", :bigint, {:null=>false, :limit=>20}) + # -> 1410.9152s + # -- execute("UPDATE current_nodes SET version = (SELECT max(version) FROM nodes WHERE nodes.id = current_nodes.id)") + # rake aborted! + # Mysql::Error: The total number of locks exceeds the lock table size: UPDATE current_nodes SET version = (SELECT max(version) FROM nodes WHERE nodes.id = current_nodes.id) + + # The above rails version will take longer, however will no run out of locks + end end def self.down