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【以下的回答经过翻译处理】 由于完整的SQL语句存储在内存中,内存使用可能会增加并影响缓存命中率。如下所述,需要额外的共享内存,即pg_stat_statements.max * track_activity_query_size字节。您可能需要检查数据库的缓存命中率变化,并监视使用RDS Performance Insights增长的等待事件。
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