The co-founder of BrewDog, James Watt, met with short shrift from small investors who have been left empty-handed by the company’s sale for just £33m, after he admitted to “many mistakes”.
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https://physics.stackexchange.com/questions/31326/is-a-hard-drive-heavier-when-it-is-full
A separate key-value store. JSONB columns are a schemaless key-value store that also happens to support indexing and querying. It’s not as fast as Redis for hot-path lookups, but it’s more durable. It’s simpler than adding Mongo.