update incrementing value (postgres)

So, i have a table:

export const VisitorCount = pgTable('visitor-count', {
  id: bigserial('id', { mode: 'number' }).primaryKey(),
  experimentId: bigint('experiment_id', { mode: 'number' }),
  variantId: bigint('variant_id', { mode: 'number' }),
  count: bigint('count', { mode: 'number' }).default(0),
});

export const VisitorCount = pgTable('visitor-count', {
  id: bigserial('id', { mode: 'number' }).primaryKey(),
  experimentId: bigint('experiment_id', { mode: 'number' }),
  variantId: bigint('variant_id', { mode: 'number' }),
  count: bigint('count', { mode: 'number' }).default(0),
});

at the time i want to do the update, i know the required rows are there, initialized at 0 and i'll do batch updates with objects that look like:

{
  '8-25': 4,
  '8-26': 4,
  '8-23': 3,
  '8-22': 3,
  '8-24': 4,
};

{
  '8-25': 4,
  '8-26': 4,
  '8-23': 3,
  '8-22': 3,
  '8-24': 4,
};

where "8" is experimentId, "25" is variantId and i want to update the relevant line, adding 4to the existing value that was there before... Is there a good way to do this?

1 Reply

Angelelz•14mo ago

This is a javascript question, you just need to do transformations to your data before sending to drizzle Along the lines of Object.entries(theObjectToTransform).map(...)

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update incrementing value (postgres)