Support inserting timestamp filed with `yyyy-MM-dd HH:mm:ss` format


The issue mentions inserting a timestamp field with a specific format. Look for SQL parsing and timestamp handling code in the codebase, likely in the query engine or data ingestion modules. Check existing timestamp format support and validation logic. Determine how to extend the parser to accept 'yyyy-MM-dd HH:mm:ss' and ensure it integrates with the existing type system and feature computation.

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