cloud-fan commented on code in PR #38904:
URL: https://github.com/apache/spark/pull/38904#discussion_r1044220536
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sql/catalyst/src/test/scala/org/apache/spark/sql/connector/catalog/InMemoryBaseTable.scala:
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@@ -294,7 +307,39 @@ abstract class InMemoryBaseTable(
val objectHeaderSizeInBytes = 12L
val rowSizeInBytes = objectHeaderSizeInBytes + schema.defaultSize
val sizeInBytes = numRows * rowSizeInBytes
- InMemoryStats(OptionalLong.of(sizeInBytes), OptionalLong.of(numRows))
+
+ val numOfCols = tableSchema.fields.length
+ val dataTypes = tableSchema.fields.map(_.dataType)
+ val colValueSets = new Array[util.HashSet[Object]](numOfCols)
+ val numOfNulls = new Array[Long](numOfCols)
+ for (i <- 0 until numOfCols) {
+ colValueSets(i) = new util.HashSet[Object]
+ }
+
+ inputPartitions.foreach(inputPartition =>
+ inputPartition.rows.foreach(row =>
+ for (i <- 0 until numOfCols) {
+ colValueSets(i).add(row.get(i, dataTypes(i)))
+ if (row.isNullAt(i)) {
+ numOfNulls(i) += 1
+ }
+ }
+ )
+ )
+
+ val map = new util.HashMap[NamedReference, ColumnStatistics]()
+ val colNames = tableSchema.fields.map(_.name)
+ var i = 0
+ for (col <- colNames) {
+ val fieldReference = FieldReference(col)
Review Comment:
`FieldReference.column(col)` as it's plain column name, while
`FieldReference.apply` parses the string.
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