Answer: Column reordering

The COPY command in Snowflake supports column reordering during data loading, which allows users to specify the order of columns in the target table regardless of the source file's column order. This is explicitly documented in Snowflake's official documentation on data loading transformations. The community discussion confirms this with 100% consensus on option C, supported by upvoted comments referencing the official documentation. Options A (Joins), B (Filters), and D (Aggregates) are not supported by the COPY command during loading; these operations are typically performed after data is loaded using SQL queries or transformations.

Author: LeetQuiz Editorial Team