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| if (Array.isArray(value)) { | ||
| const length = value.length; | ||
| const result = new Array(length); | ||
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| for (let i = 0; i < length; i += 1) { | ||
| const item = value[i]; | ||
| result[i] = isObject(item) ? transformObject(item, parentPath) : item; |
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The new array handling returns primitive items unchanged (result[i] = … : item), so repeated scalar fields never flow through cachedValueParser. Any array of enums/INT64 values (e.g., metrics.interaction_event_types or other repeated primitives) will now be left as raw strings instead of being converted to their numeric/typed form because the type lookup is skipped entirely for each element. The previous implementation passed every array element through cachedValueParser, so this is a regression in parsing repeated primitive fields.
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Before these changes: Average rows/sec: 159,236
After these changes: Average rows/sec: 380,188
Of course decamlizeKeys is only a part of the total CPU usage of this lib, but it's still a good chunk of overall performance for no downside.