public void updateExpressionProxy(String proxyClass) throws TException {
      msc.setMetaConf(MetastoreConf.ConfVars.EXPRESSION_PROXY_CLASS.getVarname(), proxyClass);
  }
Msck repairs table metadata specifically related to partition information to be in-sync with directories in table
location.
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/Msck.java