anchor.diff:  transforms.Reroute.key.field.replacement=$2
   ----
   
  -With this configuration, suppose that the default destination topic names are: 
  +With this configuration, suppose that the default destination topic names are:
   
   `myserver.mydb.customers_shard1` +
   `myserver.mydb.customers_shard2` +
  
positive.code: transforms.Reroute.topic.replacement=$1customers_all_shards
  ----
  
  `topic.regex`:: Specifies a regular expression that the transformation applies to each change event record to determine if it should be routed to a particular topic.  
  +
  In the example, the regular expression, `pass:[(.*)customers_shard(.*)]` matches records for changes to tables whose names include the `customers_shard` string. This would re-route records for tables with the following names:
  +
  
negative.code: 
  If you want to adjust the value of the key's new field, configure both of these options:
  
  `key.field.regex`:: Specifies a regular expression that the transformation applies to the default destination topic name to capture one or more groups of characters.
  
  `key.field.replacement`:: Specifies a regular expression for determining the value of the inserted key field in terms of those captured groups.
  
  For example:
  
  [source]
  ----
  