Field Notes
Field Notes
Practical notes on schema changeovers, slow queries, and the decisions teams face during database work.
Short articles from our Bangkok practice. Topics stay close to the work: naming tables, reading explain plans, and planning cutovers you can reverse.
When a temporary column becomes permanent debt
How nullable ‘temp’ columns on core order tables quietly block the next refactor—and how to retire them.
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Reading an explain plan with the product owner in the room
Why we invite non-engineers into query reviews, and which parts of an explain plan they actually need to see.
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Cutover Sundays in Bangkok: a practical checklist
A field checklist for relational schema cutovers scheduled around Thai business quiet hours.
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