sdzc

saveOrUpdate 应该执行更新，却执行插入，

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 ServiceImpl.saveOrUpdate(); 重要的是：只是偶尔会出现 版本：3.2.0

mybatis 中使用 partition by 报错

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mybatis的xml中 大体是这样的sqlselect SPREAD(a) as a, LAST_ROW(ts) as ts , from ( select a, ts, b from *** where ts >= #{startDate} and ts <= #{endDate} and b in () )...

[B cannot be cast to java.lang.String

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同样的数据 使用restful连接正常，使用websocket报错  Caused by: java.lang.ClassCastException: [B cannot be cast to java.lang.String at com.taosdata.jdbc.common.SerializeBlock.getColumnSize(SerializeBlock.java:459) ~[taos-jdbcdriver-3.6.3.jar:na] at com.taosdata.jdbc.common.SerializeBlock.getTagTotalLength(SerializeBlock.java:408) ~[taos-jdbcdriver-3.6.3.jar:na] at com.taosdata.jdbc.common.SerializeBlock.getStmt2BindBlock(SerializeBlock.java:497) ~[taos-jdbcdriver-3.6.3.jar:na] at com.taosdata.jdbc.ws.AbsWSPreparedStatement.executeBatchImpl(AbsWSPreparedStatement.java:1091) ~[taos-jdbcdriver-3.6.3.jar:na] at com.taosdata.jdbc.ws.AbsWSPreparedStatement.executeUpdate(AbsWSPreparedStatement.java:193) ~[taos-jdbcdriver-3.6.3.jar:na] at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_executeUpdate(FilterChainImpl.java:3253) ~[druid-1.2.5.jar:1.2.5]...