Re: Change Of Load Syntax

[Xiangdong Huang]

Hi Sicheng,

It is impossible to read this email as there are too many  " "


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Xiangdong Huang
School of Software, Tsinghua University


yusicheng <928623...@qq.com.invalid> 于2022年10月5日周三 10:07写道：
>
> Hi everybody!&nbsp; I noticed that whether metadata is created automatically 
> when writing is controlled by ENABLE_AUTO_CREATE_SCHEMA in 
> iotdb-datanode.properties, but the load statement for loading external tsfile 
> has its own control parameter AUTOREGISTER, and the two functions overlap, so 
> I want to remove the AUTOREGISTER parameter from the load statement and let 
> ENABLE_AUTO_CREATE_SCHEMA control whether metadata is created automatically 
> when loading, consistent with writing.
> &nbsp; In addition, I noticed that some users don't want to delete the source 
> tsfiles after loading them, so I want to add the parameter ONSUCCESS to the 
> load statement, which means how to handle the successfully loaded tsfiles. 
> There are two ways to handle it, DELETE, which deletes the source tsfiles 
> after successful loading, and NONE, which keeps the source tsfile after 
> successful loading.
> &nbsp; In summary, I would like to design the new load statement as follows:
> &nbsp; load '<path/dir&gt;' 
> [sglevel=int][verify=true/false][onSuccess=delete/none]
> &nbsp; for reference, the origin load statement is calmed as follows:
> &nbsp; load '<path/dir&gt;' 
> [autoregister=true/false][,verify=true/false][,sglevel=int]
> &nbsp;&nbsp;
> best,
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> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
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> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Sicheng Yu