Adding a Stored Generated Column in MySQL 5.7+
Learn how to add a stored generated column in MySQL 5.7+, verify it works correctly, and understand the trade‑offs involved.
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Online Schema Changes in Vitess Using VReplication: A Step‑by‑Step Guide
Learn how to add a column to a sharded Vitess table without downtime by leveraging the VReplication workflow, with concrete commands, verification steps, and trade‑offs.
vitessDataGrip 2023.3 Migration Rollback Safety: Automatic vs Manual Inverse Scripts
The goal is to define the default behavior for rollback script generation in DataGrip’s migration tool when handling straightforward DDL changes such as adding a column or altering a data type. The decision must preserve the existing safety guarantee that only reversible changes are marked safe, while avoiding accidental data loss from automatically produced
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jetbrainsDoes the reach feature support transactionally safe rollback after a schema change?
Goal: Verify whether the reach feature can safely roll back a schema change after it has been applied, ensuring that the database returns to its prior state without data loss or inconsistency. Uncertainty: The available research does not contain specific documentation for reach regarding transactional DDL support, savepoints, or versioned snapshots that woul