@Override
  @Deprecated
  public List<SQLDefaultConstraint> getDefaultConstraints(String catName, String dbName, String tblName)
      throws MetaException {
    DefaultConstraintsRequest request = new DefaultConstraintsRequest(catName, dbName, tblName);
    return getDefaultConstraints(request);
  }
Get default Constraints from cache Store if not present then fetch from raw store
@param catName catalog name
@param dbName database name
@param tblName table name
@return list of default constraints for given table
@throws MetaException
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/cache/CachedStore.java