Mick Jermsurawong created SPARK-28369:
-----------------------------------------
Summary: Check overflow in decimal UDF
Key: SPARK-28369
URL: https://issues.apache.org/jira/browse/SPARK-28369
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 3.0.0
Reporter: Mick Jermsurawong
Udf that result in overflowing BigDecimal will return null. This is
inconsistent with new behavior allow option to check and throw overflow
introduced in https://issues.apache.org/jira/browse/SPARK-23179
{code:java}
import spark.implicits._
val tenFold: java.math.BigDecimal => java.math.BigDecimal =
_.multiply(new java.math.BigDecimal("10"))
val tenFoldUdf = udf(tenFold)
val ds = spark
.createDataset(Seq(BigDecimal("12345678901234567890.123")))
.select(tenFoldUdf(col("value")))
.as[BigDecimal]
ds.collect shouldEqual Seq(null){code}
The problem is at the {{CatalystTypeConverters}} where {{toPrecision}} gets
converted to null
https://github.com/apache/spark/blob/13ae9ebb38ba357aeb3f1e3fe497b322dff8eb35/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/CatalystTypeConverters.scala#L344-L356
--
This message was sent by Atlassian JIRA
(v7.6.14#76016)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
