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恢复DROP表时，只恢复基表名，其他子对象名均保持回收站对象名。用户可根据需要，执行DDL命令手工调整子对象名。 回收站对象不支持DML、DCL、DDL等写操作，不支持DQL查询操作（后续支持）。 闪回点和当前点之间，执行过修改表结构或影响物理结构的语句，闪回失败。执行过DDL的
drobin，非倾斜数据做redistribute； 对非倾斜侧做PART_REDISTRIBUTE_PART_BROADCAST，其中对倾斜数据做broadcast，非倾斜数据做redistribute。 join一侧需要重分布，另一侧不需要重分布： 对需要重分布的一侧做PAR
恢复DROP表时，只恢复基表名，其他子对象名均保持回收站对象名。用户可根据需要，执行DDL命令手工调整子对象名。 回收站对象不支持DML、DCL、DDL等写操作，不支持DQL查询操作（后续支持）。 闪回点和当前点之间，执行过修改表结构或影响物理结构的语句，闪回失败。执行过DDL的
drobin，非倾斜数据做redistribute； 对非倾斜侧做PART_REDISTRIBUTE_PART_BROADCAST，其中对倾斜数据做broadcast，非倾斜数据做redistribute； join一侧需要重分布，另一侧不需要重分布： 对需要重分布的一侧做PAR
enable_dcf 参数说明：DCF模式开关。 取值范围：布尔型。修改后需要重启cm_server才能生效。参数修改请参考表2进行设置。 0表示关闭。 1表示开启。 默认值：off ddb_type 参数说明：etcd，dcc模式切换开关。 取值范围：整型。0：etcd；1：dcc。修
Sort/SetOp/HashAgg/HashJoin spill Spill file size large than 256MB Broadcast size large than 100MB Early spill Spill times is greater than 3 Spill
Sort/SetOp/HashAgg/HashJoin spill Spill file size large than 256MB Broadcast size large than 100MB Early spill Spill times is greater than 3 Spill
Sort/SetOp/HashAgg/HashJoin spill Spill file size large than 256MB Broadcast size large than 100MB Early spill Spill times is greater than 3 Spill
Sort/SetOp/HashAgg/HashJoin spill Spill file size large than 256MB Broadcast size large than 100MB Early spill Spill times is greater than 3 Spill
Sort/SetOp/HashAgg/HashJoin spill Spill file size large than 256MB Broadcast size large than 100MB Early spill Spill times is greater than 3 Spill
enable_tidscan, enable_stream_operator, enable_stream_recursive, enable_broadcast, enable_fast_query_shipping, enable_trigger_shipping, enable_remotejoin
Sort/SetOp/HashAgg/HashJoin spill Spill file size large than 256MB Broadcast size large than 100MB Early spill Spill times is greater than 3 Spill
Sort/SetOp/HashAgg/HashJoin spill Spill file size large than 256MB Broadcast size large than 100MB Early spill Spill times is greater than 3 Spill
Sort/SetOp/HashAgg/HashJoin spill Spill file size large than 256MB Broadcast size large than 100MB Early spill Spill times is greater than 3 Spill
Sort/SetOp/HashAgg/HashJoin spill Spill file size large than 256MB Broadcast size large than 100MB Early spill Spill times is greater than 3 Spill
Sort/SetOp/HashAgg/HashJoin spill Spill file size large than 256MB Broadcast size large than 100MB Early spill Spill times is greater than 3 Spill
Sort/SetOp/HashAgg/HashJoin spill Spill file size large than 256MB Broadcast size large than 100MB Early spill Spill times is greater than 3 Spill
隐式提交的语句 M-Compatibility使用GaussDB存储，继承GaussDB事务机制，事务中执行DDL、DCL不会自动提交。 MySQL在DDL、DCL、管理类语句，锁相关语句会自动提交。 -- M-Compatibility创建表和设置GUC参数可以回滚掉。 m_db=#
https://gaussdb-opengauss.cn-north-4.myhuaweicloud.com/v3/619d3e78f61b4be68bc5aa0b59edcf7b/configurations/3ca44134a16d4bbab8eb701e025b19f7pr14/applicable-instances
Sort/SetOp/HashAgg/HashJoin spill Spill file size large than 256MB Broadcast size large than 100MB Early spill Spill times is greater than 3 Spill
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