OffHeapColumnVector¶

OffHeapColumnVector is a concrete WritableColumnVector.

=== [[allocateColumns]] Allocating Column Vectors -- allocateColumns Static Method

[source, java]¶

OffHeapColumnVector[] allocateColumns(int capacity, StructType schema) // <1> OffHeapColumnVector[] allocateColumns(int capacity, StructField[] fields)

<1> Simply converts StructType to StructField[] and calls the other allocateColumns

allocateColumns creates an array of OffHeapColumnVector for every field (to hold capacity number of elements of the data type per field).

NOTE: allocateColumns is used when...FIXME