gabrywu created SPARK-41556:
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Summary: input_file_positon
Key: SPARK-41556
URL: https://issues.apache.org/jira/browse/SPARK-41556
Project: Spark
Issue Type: New Feature
Components: SQL
Affects Versions: 3.3.1
Reporter: gabrywu
As for now, we have 3 built-in UDFs related to input files and blocks. So can
we provide a new UDF to return current record position of a file or block?
Sometimes, it's useful and we can consider this position (called ROWID in
oracle) as a physical primary key.
|input_file_block_length()|Returns the length of the block being read, or -1 if
not available.|
|input_file_block_start()|Returns the start offset of the block being read, or
-1 if not available.|
|input_file_name()|Returns the name of the file being read, or empty string if
not available.|
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