Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/4701#discussion_r25054004
--- Diff: core/src/main/scala/org/apache/spark/rdd/JdbcRDD.scala ---
@@ -64,8 +64,8 @@ class JdbcRDD[T: ClassTag](
// bounds are inclusive, hence the + 1 here and - 1 on end
val length = 1 + upperBound - lowerBound
(0 until numPartitions).map(i => {
- val start = lowerBound + ((i * length) / numPartitions).toLong
- val end = lowerBound + (((i + 1) * length) / numPartitions).toLong -
1
+ val start = lowerBound + ((BigDecimal(i) * length) /
numPartitions).toLong
--- End diff --
maybe this would be more robust if we just increment by a fixed width every
iteration?
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