Mysql---SQLException: Prepared statement needs to be re-prepared raised in Connection_executeQuery

在使用Mysql的过程中，出现一下问题：SQLException: Prepared statement needs to be re-prepared  raised in Connection_executeQuery at src/db/Connection.c:319 通过分析和查阅资料，最终定位原因是mysql的table_open_cache太小导致，实际的table_open_cah

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