[Enhancement] (nereids)implement LoadCommand in nereids

[LiBinfeng-01]

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Description

load command is supported in legacy planner but not in nereids(new doris fe planner). you need implement the following use command in nereids:
unsupportedLoadStatement

• [Enhancement] (nereids)implement mysqlLoadCommand in nereids #42800
• [Enhancement] (nereids)implement createDataSyncJobCommand in nereids #42801
• [Enhancement] (nereids)implement stopDataSyncJobCommand in nereids #42802
• [Enhancement] (nereids)implement resumeDataSyncJobCommand in nereids #42803
• [Enhancement] (nereids)implement pauseDataSyncJobCommand in nereids #42804
• [Enhancement] (nereids)implement createRoutineLoadJobCommand in nereids #42805
• [Enhancement] (nereids)implement pauseRoutineLoadCommand in nereids #42806
• [Enhancement] (nereids)implement pauseAllRoutineLoadCommand in nereids #42807
• [Enhancement] (nereids)implement resumeRoutineLoadCommand in nereids #42808
• [Enhancement] (nereids)implement resumeAllRoutineLoadCommand in nereids #42809
• [Enhancement] (nereids)implement stopRoutineLoadCommand in nereids #42810
• [Enhancement] (nereids)implement showRoutineLoadCommand in nereids #42811
• [Enhancement] (nereids)implement showCreateRoutineLoadCommand in nereids #42812
• [Enhancement] (nereids)implement showCreateLoadCommand in nereids #42813
• [Enhancement] (nereids)implement syncCommand in nereids #42814
• [Enhancement] (nereids)implement importSequenceStatementAliasCommand in nereids #42835

Solution

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