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## What changes were proposed in this pull request? We currently have function input_file_name to get the path of the input file, but don't have functions to get the block start offset and length. This patch introduces two functions: 1. input_file_block_start: returns the file block start offset, or -1 if not available. 2. input_file_block_length: returns the file block length, or -1 if not available. ## How was this patch tested? Updated existing test cases in ColumnExpressionSuite that covered input_file_name to also cover the two new functions. Author: Reynold Xin <rxin@databricks.com> Closes #16133 from rxin/SPARK-18702. |
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