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Fix metadata timestamp conversion #45

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cbardasano
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Reading metadata fails if the units of the timestamp are nanosecods. This PR fixes this.

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Thanks! Looks good. One minor change please.

Also do you have an example file that uses micros or nanos?

@@ -281,6 +281,9 @@ export function convertMetadata(value, schema) {
if (type === 'INT32' && converted_type === 'DATE') return new Date(view.getInt32(0, true) * 86400000)
if (type === 'INT64' && converted_type === 'TIMESTAMP_MICROS') return new Date(Number(view.getBigInt64(0, true) / 1000n))
if (type === 'INT64' && converted_type === 'TIMESTAMP_MILLIS') return new Date(Number(view.getBigInt64(0, true)))
if (type === 'INT64' && logical_type?.type === 'TIMESTAMP' && logical_type?.unit === 'NANOS') return new Date(Number(view.getBigInt64(0, true) / 1000000n))
if (type === 'INT64' && logical_type?.type === 'TIMESTAMP' && logical_type?.unit === 'MICROS') return new Date(Number(view.getBigInt64(0, true) / 1000n))
if (type === 'INT64' && logical_type?.type === 'TIMESTAMP' && logical_type?.unit === 'MILLIS') return new Date(Number(view.getBigInt64(0, true)))
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This last condition for unit === 'MILLIS' is not necessary because it's the same parsing as the next line.

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if (type === 'INT64' && logical_type?.type === 'TIMESTAMP' && logical_type?.unit === 'MILLIS') return new Date(Number(view.getBigInt64(0, true)))

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2 participants