解释Oracle空间中查询数据的计划

Question

我想获取执行查询的详细时间。

我有查询

explain plan for select land.name from gis_osm_landuse_a_07_1 land, gis_osm_pois_07_1 poi where  
sdo_relate(land.geometry, poi.geometry,'mask=contains')='true' group by land.name;

它给了我

| Id  | Operation                         | Name                   | Rows  | Bytes | Cost (%CPU)| Time     |
------------------------------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT                  |                        |   504 | 68040 | 75128   (1)| 00:00:03 |
|   1 |  HASH GROUP BY                    |                        |   504 | 68040 | 75128   (1)| 00:00:03 |
|   2 |   NESTED LOOPS                    |                        | 10149 |  1338K| 75126   (1)| 00:00:03 |
|   3 |    TABLE ACCESS FULL              | GIS_OSM_POIS_07_1      | 24949 |  1924K|    85   (2)| 00:00:01 |
|   4 |    TABLE ACCESS BY INDEX ROWID    | GIS_OSM_LANDUSE_A_07_1 |     1 |    56 | 75126   (1)| 00:00:03 |
|*  5 |     DOMAIN INDEX (SEL: 0.010000 %)| TERRITORY_IDX          |       |       |     3   (0)| 00:00:01 |

仅仅为我几秒钟的时间

我应该怎么做才能有毫秒的时间？

gather_plan_statistics对我不起作用

select /*+ gather_plan_statistics */

  

  
1. 00000-“执行ODCIIndexStart（）例程时出错”   *原因：ODCIIndexStart例程的执行导致错误。