Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/13680#discussion_r74065336 --- Diff: sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/util/UnsafeArraySuite.scala --- @@ -18,27 +18,131 @@ package org.apache.spark.sql.catalyst.util import org.apache.spark.SparkFunSuite +import org.apache.spark.sql.catalyst.encoders.ExpressionEncoder import org.apache.spark.sql.catalyst.expressions.UnsafeArrayData +import org.apache.spark.unsafe.Platform class UnsafeArraySuite extends SparkFunSuite { - test("from primitive int array") { - val array = Array(1, 10, 100) - val unsafe = UnsafeArrayData.fromPrimitiveArray(array) - assert(unsafe.numElements == 3) - assert(unsafe.getSizeInBytes == 4 + 4 * 3 + 4 * 3) - assert(unsafe.getInt(0) == 1) - assert(unsafe.getInt(1) == 10) - assert(unsafe.getInt(2) == 100) + val booleanArray = Array(false, true) + val shortArray = Array(1.toShort, 10.toShort, 100.toShort) + val intArray = Array(1, 10, 100) + val longArray = Array(1.toLong, 10.toLong, 100.toLong) + val floatArray = Array(1.1.toFloat, 2.2.toFloat, 3.3.toFloat) + val doubleArray = Array(1.1, 2.2, 3.3) + val stringArray = Array("1", "10", "100") --- End diff -- we can use `RowEncoder` for this case: ``` val schema = new StructType().add("array", ArrayType(DecimalType(20, 10))) val encoder = RowEncoder(schema).resolveAndBind() val externalRow = Row(new GenericArrayData(Array(Decimal("23213.131231")))) val unsafeDecimalArray = encoder.toRow(externalRow) ```
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