maropu commented on a change in pull request #25172: [SPARK-28412][SQL] ANSI SQL: OVERLAY function support byte array URL: https://github.com/apache/spark/pull/25172#discussion_r306124653
########## File path: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringExpressions.scala ########## @@ -472,6 +472,19 @@ object Overlay { builder.append(input.substringSQL(pos + length, Int.MaxValue)) builder.build() } + + def calculate(input: Array[Byte], replace: Array[Byte], pos: Int, len: Int): Array[Byte] = { + // If you specify length, it must be a positive whole number or zero. + // Otherwise it will be ignored. + // The default value for length is the length of replace. + val length = if (len >= 0) { + len + } else { + replace.length + } + ByteArray.concat(ByteArray.subStringSQL(input, 1, pos - 1), + replace, ByteArray.subStringSQL(input, pos + length, Int.MaxValue)) + } Review comment: cc: @viirya @mgaido91 ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org