1 | INDEX FAST FULL SCAN| OOO | 1971 | 78840 | 168 (1)| 00:00:03 |
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Predicate Information (identified by operation id):
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1 - filter("OBJECT_TYPE"='INDEX')
Statistics
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0 recursive calls
0 db block gets
957 consistent gets
0 physical reads
0 redo size
199834 bytes sent via SQL*Net to client
4253 bytes received via SQL*Net from client
341 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
5088 rows processed
同上,但是这里返回行数较多,cbo选择了index fast full scan,避免了全表扫描