Description:
Export data to the local.
Syntax:
es_export(fd, filename:cs, indexName, colX)
Note:
The external library function (See External Library Guide) exports data to the local; only support exporting data from a JSON or CSV file.
Parameter:
|
fd |
restclient object |
|
filename |
Name of the local file to which data is exported |
|
cs |
Character set, which is GBK by default |
|
indexName |
Index name |
|
colX |
Column names represented by a sequence; export all fields by default |
Return value:
Boolean
Example:
|
|
A |
|
|
1 |
=es_export(A1,"d:/tmp/emp1.json","emp") |
Export all records whose index is emp to the local file emp1.json |
|
2 |
=es_export(A1,"d:/tmp/emp2.csv":"UTF-8","emp",["EID","NAME","GENDER","BIRTHDAY"]) |
Export all records whose index is emp to the local file emp2.csv using UTF-8. |