[SPARK-37451][3.1][SQL] Fix cast string type to decimal type if spark.sql.legacy.allowNegativeScaleOfDecimal is enabled #34851
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…legacy.allowNegativeScaleOfDecimal is enabled
### What changes were proposed in this pull request?
Fix cast string type to decimal type only if `spark.sql.legacy.allowNegativeScaleOfDecimal` is enabled. For example:
```scala
import org.apache.spark.sql.types._
import org.apache.spark.sql.Row
spark.conf.set("spark.sql.legacy.allowNegativeScaleOfDecimal", true)
val data = Seq(Row("7.836725755512218E38"))
val schema = StructType(Array(StructField("a", StringType, false)))
val df =spark.createDataFrame(spark.sparkContext.parallelize(data), schema)
df.select(col("a").cast(DecimalType(37,-17))).show
```
The result is null since [SPARK-32706](https://issues.apache.org/jira/browse/SPARK-32706).
### Why are the changes needed?
Fix regression bug.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Unit test.
Closes #34811 from wangyum/SPARK-37451.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
(cherry picked from commit a1214a9)
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Test build #146039 has finished for PR 34851 at commit
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Kubernetes integration test unable to build dist. exiting with code: 1 |
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dongjoon-hyun
approved these changes
Dec 9, 2021
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+1, LGTM. Thank you, @wangyum .
Merged to branch-3.1.
dongjoon-hyun
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Dec 9, 2021
….sql.legacy.allowNegativeScaleOfDecimal is enabled Backport #34811 ### What changes were proposed in this pull request? Fix cast string type to decimal type only if `spark.sql.legacy.allowNegativeScaleOfDecimal` is enabled. For example: ```scala import org.apache.spark.sql.types._ import org.apache.spark.sql.Row spark.conf.set("spark.sql.legacy.allowNegativeScaleOfDecimal", true) val data = Seq(Row("7.836725755512218E38")) val schema = StructType(Array(StructField("a", StringType, false))) val df =spark.createDataFrame(spark.sparkContext.parallelize(data), schema) df.select(col("a").cast(DecimalType(37,-17))).show ``` The result is null since [SPARK-32706](https://issues.apache.org/jira/browse/SPARK-32706). ### Why are the changes needed? Fix regression bug. ### Does this PR introduce _any_ user-facing change? No. ### How was this patch tested? Unit test. Closes #34851 from wangyum/SPARK-37451-branch-3.1. Authored-by: Yuming Wang <yumwang@ebay.com> Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
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Test build #146040 has finished for PR 34851 at commit
|
fishcus
pushed a commit
to fishcus/spark
that referenced
this pull request
Jan 12, 2022
….sql.legacy.allowNegativeScaleOfDecimal is enabled Backport apache#34811 ### What changes were proposed in this pull request? Fix cast string type to decimal type only if `spark.sql.legacy.allowNegativeScaleOfDecimal` is enabled. For example: ```scala import org.apache.spark.sql.types._ import org.apache.spark.sql.Row spark.conf.set("spark.sql.legacy.allowNegativeScaleOfDecimal", true) val data = Seq(Row("7.836725755512218E38")) val schema = StructType(Array(StructField("a", StringType, false))) val df =spark.createDataFrame(spark.sparkContext.parallelize(data), schema) df.select(col("a").cast(DecimalType(37,-17))).show ``` The result is null since [SPARK-32706](https://issues.apache.org/jira/browse/SPARK-32706). ### Why are the changes needed? Fix regression bug. ### Does this PR introduce _any_ user-facing change? No. ### How was this patch tested? Unit test. Closes apache#34851 from wangyum/SPARK-37451-branch-3.1. Authored-by: Yuming Wang <yumwang@ebay.com> Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
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Backport #34811
What changes were proposed in this pull request?
Fix cast string type to decimal type only if
spark.sql.legacy.allowNegativeScaleOfDecimalis enabled. For example:The result is null since SPARK-32706.
Why are the changes needed?
Fix regression bug.
Does this PR introduce any user-facing change?
No.
How was this patch tested?
Unit test.