Interface ColumnarBatchMetricsExperimental

Exact payload-copy and backing-allocation accounting for a batch.

interface ColumnarBatchMetrics {
    backingBuffers: number;
    backingBytes: number;
    bufferViews: number;
    copiedBytes: 0;
    logicalBytes: number;
    rows: number;
    transferBytes: number;
}

Properties

backingBuffers backingBytes bufferViews copiedBytes logicalBytes rows transferBytes

Properties

Readonly ExperimentalbackingBuffers

backingBuffers: number

Readonly ExperimentalbackingBytes

backingBytes: number

Sum of byteLength for complete unique transferable backing buffers.

Readonly ExperimentalbufferViews

bufferViews: number

Readonly ExperimentalcopiedBytes

copiedBytes

Always zero: the SDK never slices or clones payload buffers.

Readonly ExperimentallogicalBytes

logicalBytes: number

Sum of descriptor slice lengths; overlapping slices count separately.

Readonly Experimentalrows

rows: number

Readonly ExperimentaltransferBytes

transferBytes: number

Bytes relinquished when the transfer list is posted.

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