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sgarland
1y ago
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Or if it’s MySQL, the PK is implicitly copied into every secondary index. Adds up quickly.
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pyuser583
1y ago
Wow did not know that. MySQL has tons of hidden behavior.
sgarland
OP
1y ago
So does Postgres to an extent, but in general, MySQL has more hidden edge cases, and Postgres has more hidden maintenance requirements.
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