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Library/Kiến trúc & Database/PostgreSQL
Medium Pro#postgresql

Khi nào nên sử dụng Generated Columns trong PostgreSQL?

February 15, 2026

Quick summary

Generated Columns in PostgreSQL (since v12) automatically compute values from other columns in the same row and store them physically (`STORED`). They are used to optimize query performance with indexes and simplify application logic, but the generation expression must be `IMMUTABLE`.

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Sample answer:

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam.

Quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore.

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