Column matching strategy for import data

Determines how columns in the source file are matched to columns in the target table.

Options:

• auto - Automatically match columns by name (recommended for most cases)
• strict - Require exact match of column names and order
• manual - Manually specify column mapping

Default: auto

Use Cases: Auto mode is ideal when source and target column names are identical. Use strict mode when data quality is critical. Use manual mode for complex transformations.