如何消除SQL生成的XML中多余的命名空间声明？

I'm fine tuning a web app that calls SOAP services backed by SQL stored procedure calls. Typically the stored procs generate XML that becomes part of the SOAP response, and that XML has many superfluous xmlns namespace declarations. In pathological cases this can be 30% or more of the char encoded XML measured in bytes, e.g.:I'm fine tuning a web app that calls SOAP servi