4. The method of claim 1 , further comprising: pre-computing a unary spatial function found in the spatial query to a regular data type in the regular tables.
4. The method of claim 1 , further comprising: pre-computing a unary spatial function found in the spatial query to a regular data type in the regular tables. 5. The method of claim 4 , wherein translating the spatial query into a regular query further comprises: mapping the unary spatial function to a regular data type in the regular tables.