ericm-db commented on code in PR #44961:
URL: https://github.com/apache/spark/pull/44961#discussion_r1473541800
##########
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/state/RocksDBStateStoreProvider.scala:
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@@ -65,6 +65,43 @@ private[sql] class RocksDBStateStoreProvider
value
}
+ override def valuesIterator(key: UnsafeRow, colFamilyName: String):
Iterator[UnsafeRow] = {
+ verify(key != null, "Key cannot be null")
+ verify(encoder.supportsMultipleValuesPerKey, "valuesIterator requires a
encoder " +
+ "that supports multiple values for a single key.")
+ val valueIterator =
encoder.decodeValues(rocksDB.get(encoder.encodeKey(key), colFamilyName))
+
+ if (!isValidated && valueIterator.nonEmpty) {
+ new Iterator[UnsafeRow] {
+ override def hasNext: Boolean = {
+ valueIterator.hasNext
+ }
+
+ override def next(): UnsafeRow = {
+ val value = valueIterator.next()
+ if (!isValidated && value != null) {
+ StateStoreProvider.validateStateRowFormat(
+ key, keySchema, value, valueSchema, storeConf)
+ isValidated = true
+ }
+ value
+ }
+ }
+ } else {
+ valueIterator
+ }
+ }
+
+ override def merge(key: UnsafeRow, value: UnsafeRow,
+ colFamilyName: String =
StateStore.DEFAULT_COL_FAMILY_NAME): Unit = {
Review Comment:
nit: indent
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