sql数据库走索引，怎么始终有物理读？（2）_MySQL
; 0 0 12 0
05 Fetch 2 0.00 0.00 0 1 0 1
06 ------- ------ -------- ---------- ---------- ---------- ---------- ----------
07 total 4 0.79 0.90 0 1 12 1
08
09 Misses in library cache during parse: 1
10 Optimizer mode: ALL_ROWS
11 Parsing user id: 64
12
13 Rows Row Source Operation
14 ------- ---------------------------------------------------
15 1 SORT AGGREGATE
16 0 FILTER
17 0 INDEX RANGE SCAN IND_T_PREBM4 (object id 38674)
18
19 Elapsed times include waiting on following events:
20 Event waited on Times Max. Wait Total Waited
21 ---------------------------------------- Waited ---------- ------------
22 direct path write 1 0.00 0.00
23 SQL*Net message to client 2 0.00 0.00
24 SQL*Net message from client 2 27.20 27.22
1 insert into sys.fga_log$(sessionid,timestamp#,dbuid,osuid,obj$schema,obj$name,
2 policyn
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