云数据库 GaussDB-指定不使用全局计划缓存的Hint:示例

时间:2023-11-01 16:18:32

示例

gaussdb=#  deallocate all;DEALLOCATE ALLgaussdb=#  prepare p1 as insert /*+ no_gpc*/ into t1 select c1,c2 from t2 where c1=$1;PREPAREgaussdb=#  execute p1(3);INSERT 0 1gaussdb=#  select * from dbe_perf.global_plancache_status where schema_name='public' order by 1,2; nodename | query | refcount | valid | databaseid | schema_name | params_num | func_id | pkg_id | stmt_id ----------+-------+----------+-------+------------+-------------+------------+---------+--------+---------(0 rows)

dbe_perf.global_plancache_status视图中无结果即没有计划被全局缓存。

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