feelwing1314 edited a comment on issue #1820: the replaySetParameter cost much time on mysql batch insert. URL: https://github.com/apache/incubator-shardingsphere/issues/1820#issuecomment-458058254 i found the cause。 the List<List<Object>> parameterSets = new LinkedList<>() in AbstractStatementExecutor, it's data structure is **LinkedList**。when it had 54000 parameter， the get(i) is bad。
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