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sql数据库走索引,怎么始终有物理读?(2)_MySQL

时间:2021-07-01 10:21:17 帮助过:10人阅读

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; 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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