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Update 09-udf.md

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@ -295,7 +295,7 @@ Then execute the command below.
ldconfig
```
3. If you want to utilize some 3rd party python packages using `PYTHONPATH`, please set configuration parameter `UdfdLdLibPath` to the value of `PYTHONPATH` before starting `taosd`.
3. If you want to utilize some 3rd party python packages in your Python UDF, please set configuration parameter `UdfdLdLibPath` to the value of `PYTHONPATH` before starting `taosd`.
4. Launch `taosd` service
@ -503,7 +503,7 @@ Now, we have finished the first PDF in Python, and learned some basic debugging
The `myfun` UDF example in sample 1 has passed, but it has two drawbacks.
1. It accepts only one column of data as input, and doesn't throw exception if you passes multiple columns.这
1. It accepts only one column of data as input, and doesn't throw exception if you passes multiple columns.
```sql
taos> select myfun(v1, v2) from t;