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Convert map to JSON String. This function can only be used in an .
TOJSONMAPSTR(map)
The usage examples are based on extracting fields from the following JSON document:
This function can be used in the to extract the meta
property into the data
column, as described below:
This section contains reference documentation for the TOJSONMAPSTR function.
TOJSONMAPSTR(meta)
"{\"age\":12}"