Databricks读取Delta Lake文件：为年度文件添加对应年份列遇问题

Basic Formatting Elements #

Text Emphasis #

• Italicized text uses single asterisks for emphasis.
• Highlight key terms like fiscal year to make them stand out.

Inline Code #

Reference code snippets or commands with backticks: spark.read.text(path_files) or re.search(r"\d{4}", first_line).

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This is a block of quoted text, prefixed with a greater-than sign.
It works for multi-line quotes too.

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• First list item
• Second item with emphasized text
• Third item referencing inline code

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Links #

Link Text (replace the URL with your target address)

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Multi-line Code Block #

# Extract year from file first line
first_line = spark.read.text(file_path).first()[0]
file_year = re.search(r"\d{4}", first_line).group()

内容的提问来源于stack exchange，提问作者Joyci Santos