0
@@ -308,6 +308,7 @@ module ActiveRecord
0
         rows
0
       end
0
 
0
+      # Executes a SQL query and returns a MySQL::Result object. Note that you have to free the Result object after you're done using it.
1
       def execute(sql, name = nil) #:nodoc:
0
         log(sql, name) { @connection.query(sql) }
0
       rescue ActiveRecord::StatementInvalid => exception
0
@@ -414,7 +415,9 @@ module ActiveRecord
0
 
0
       def tables(name = nil) #:nodoc:
0
         tables = []
0
-        execute("SHOW TABLES", name).each { |field| tables << field[0] }
0
+        result = execute("SHOW TABLES", name)
0
+        result.each { |field| tables << field[0] }
0
+        result.free
0
         tables
0
       end
0
 
0
@@ -425,7 +428,8 @@ module ActiveRecord
0
       def indexes(table_name, name = nil)#:nodoc:
0
         indexes = []
0
         current_index = nil
0
-        execute("SHOW KEYS FROM #{quote_table_name(table_name)}", name).each do |row|
0
+        result = execute("SHOW KEYS FROM #{quote_table_name(table_name)}", name)
0
+        result.each do |row|
0
           if current_index != row[2]
0
             next if row[2] == "PRIMARY" # skip the primary key
0
             current_index = row[2]
0
@@ -434,13 +438,16 @@ module ActiveRecord
0
 
0
           indexes.last.columns << row[4]
0
         end
0
+        result.free
0
         indexes
0
       end
0
 
0
       def columns(table_name, name = nil)#:nodoc:
0
         sql = "SHOW FIELDS FROM #{quote_table_name(table_name)}"
0
         columns = []
0
-        execute(sql, name).each { |field| columns << MysqlColumn.new(field[0], field[4], field[1], field[2] == "YES") }
0
+        result = execute(sql, name)
0
+        result.each { |field| columns << MysqlColumn.new(field[0], field[4], field[1], field[2] == "YES") }
0
+        result.free
0
         columns
0
       end
0
 
0
@@ -521,9 +528,11 @@ module ActiveRecord
0
       # Returns a table's primary key and belonging sequence.
0
       def pk_and_sequence_for(table) #:nodoc:
0
         keys = []
0
-        execute("describe #{quote_table_name(table)}").each_hash do |h|
0
+        result = execute("describe #{quote_table_name(table)}")
0
+        result.each_hash do |h|
0
           keys << h["Field"]if h["Key"] == "PRI"
0
         end
0
+        result.free
0
         keys.length == 1 ? [keys.first, nil] : nil
0
       end
0