ちょっとしたことがGroovy「PostgreSQLのXML型のカラムのデータを修正する」 ref: http://qiita.com/aya_eiya/items/7e4d126757e684f0ff0a

xml_data_fix.groovy

@Grab(group='postgresql', module='postgresql', version='9.1-901.jdbc4')
@Grab(group='org.codehaus.gpars', module='gpars', version='1.0.0')

import org.postgresql.ds.PGSimpleDataSource;
import groovy.sql.Sql;

/* meta */
String.metaClass.queryTo = { con ->
  def qry = delegate

  new Object(){
      def leftShift = {c -> con.eachRow(qry,c)}
      def forList = new Object(){
        def leftShift = {c -> try{c(con.rows(qry).collect{it[0]})}catch(Exception ex){println ex} }
      }
  }
}

String.metaClass.updateBy = { con,params ->
  def qry = delegate
  con.executeInsert(qry,params)
}

PGSimpleDataSource.metaClass.set = { srv,port,db,usr,pass -> 
  delegate.setServerName(srv) ; delegate.setPortNumber(port)
  delegate.setDatabaseName(db)
  delegate.setUser(usr)       ; delegate.setPassword(pass)
  delegate.getConnection()
}


/* datasource */
def cons = {
  [pg01 : new Sql(new PGSimpleDataSource().set("localhost" , 5432 , "postgres"    , "myUser" , "******"))]
}()

/* query */
"""
select xml_data
from xml_data_store
where
document_number = '20130801'
""".queryTo(cons.pg01) << {
  def xml = it.description.getString().replaceAll('不適切な文言','(不適切な表現につき検閲されました)')
  try{
      def xmlobj = new org.postgresql.jdbc4.Jdbc4SQLXML(cons.publication.connection,xml)
      """
      update xml_data_store
        set xml_data_fixed = ?
      where
        document_number = '20130801'
      """.updateBy(cons.publication,[xmlobj])
  }catch(ex){
      println ex
  }
}

/* close */
cons.each {try{it.value.close()}catch(e){}}