jingz-db commented on code in PR #47107:
URL: https://github.com/apache/spark/pull/47107#discussion_r1664931938
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sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/state/RocksDBStateStoreProvider.scala:
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@@ -392,12 +463,126 @@ private[sql] class RocksDBStateStoreProvider
case e: Throwable => throw QueryExecutionErrors.cannotLoadStore(e)
}
}
+
+ private object ColumnFamilyUtils {
+ private val multColFamiliesDisabledStr = "multiple column families
disabled in " +
+ "RocksDBStateStoreProvider"
+
+ def getVcfIdBytes(id: Short): Array[Byte] = {
+ val encodedBytes = new Array[Byte](VIRTUAL_COL_FAMILY_PREFIX_BYTES)
+ Platform.putShort(encodedBytes, Platform.BYTE_ARRAY_OFFSET, id)
Review Comment:
Yes, it means 0 byte. It is the [same semantics](BYTE_ARRAY_OFFSET) as in
RocksDBStateEncoder, basically it means the beginning of the encodedBytes.
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