Unstructured data processing functions
MaxCompute provides multiple ways to access unstructured data and its metadata from a data warehouse or data lake.
Object Table and OSS object functions
MaxCompute supports the Object Table feature to access unstructured data and its metadata in OSS. It also provides functions to process this data. For more information, see Object Table definition.
Function | Description |
Reads all or part of an object and returns the content in binary format. | |
Generates a pre-signed URL to download data from or upload data to OSS. This allows you to read and write OSS objects directly over HTTP. | |
Generates a Blob value that points to all or part of an OSS object, based on the object key recorded in an Object Table. |
Blob object processing functions
MaxCompute supports the Blob (binary large object) data type. This data type is designed for storing unstructured or semi-structured binary data, such as images, file content, and serialized data. The following functions are available for processing Blob objects.
Function | Description |
Reads the metadata of a |