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[GitHub] [spark] AngersZhuuuu opened a new pull request #30958: [SPARK-33930][SQL] Spark SQL no serde row format field delimit default value is '\u0001'
AngersZhuuuu opened a new pull request #30958:
URL: https://github.com/apache/spark/pull/30958
### What changes were proposed in this pull request?
For same SQL
```
SELECT TRANSFORM(a, b, c, null)
ROW FORMAT DELIMITED
USING 'cat'
ROW FORMAT DELIMITED
FIELDS TERMINATED BY '&'
FROM (select 1 as a, 2 as b, 3 as c) t
```
In hive:

In Spark

We should keep same. Change default ROW FORMAT FIELD DELIMIT to `\u0001`
### Why are the changes needed?
Keep same behavior with hive
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Added UT
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[GitHub] [spark] viirya edited a comment on pull request #30958: [SPARK-33930][SQL] Spark SQL no serde row format field delimit default value should be '\u0001'?
Posted by GitBox <gi...@apache.org>.
viirya edited a comment on pull request #30958:
URL: https://github.com/apache/spark/pull/30958#issuecomment-751993055
Maybe "Script Transform default FIELD DELIMIT should be \u0001 for no serde".
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[GitHub] [spark] AngersZhuuuu commented on a change in pull request #30958: [SPARK-33930][SQL] Script Transform default FIELD DELIMIT should be \u0001 for no serde
Posted by GitBox <gi...@apache.org>.
AngersZhuuuu commented on a change in pull request #30958:
URL: https://github.com/apache/spark/pull/30958#discussion_r549624404
##########
File path: docs/sql-migration-guide.md
##########
@@ -30,6 +30,8 @@ license: |
- In Spark 3.2, `ALTER TABLE .. RENAME TO PARTITION` throws `PartitionAlreadyExistsException` instead of `AnalysisException` for tables from Hive external when the target partition already exists.
+ - In Spark 3.2, script transform default `FIELD DELIMIT` is `\u0001` for no serde mode. In Spark 3.1 or earlier, the default `FIELD DELIMIT` is `\t`.
Review comment:
> Do we need backquote? Maybe `` `FIELD DELIMIT` `` -> `FIELD DELIMIT`?
Done
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[GitHub] [spark] AngersZhuuuu commented on pull request #30958: [SPARK-33930][SQL] Spark SQL no serde row format field delimit default value is '\u0001'
Posted by GitBox <gi...@apache.org>.
AngersZhuuuu commented on pull request #30958:
URL: https://github.com/apache/spark/pull/30958#issuecomment-751953177
FYI @maropu @cloud-fan
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[GitHub] [spark] HyukjinKwon closed pull request #30958: [SPARK-33930][SQL] Script Transform default FIELD DELIMIT should be \u0001 for no serde
Posted by GitBox <gi...@apache.org>.
HyukjinKwon closed pull request #30958:
URL: https://github.com/apache/spark/pull/30958
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[GitHub] [spark] HyukjinKwon commented on pull request #30958: [SPARK-33930][SQL] Script Transform default FIELD DELIMIT should be \u0001 for no serde
Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on pull request #30958:
URL: https://github.com/apache/spark/pull/30958#issuecomment-752095541
Merged to master.
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[GitHub] [spark] viirya commented on pull request #30958: [SPARK-33930][SQL] Spark SQL no serde row format field delimit default value is '\u0001'
Posted by GitBox <gi...@apache.org>.
viirya commented on pull request #30958:
URL: https://github.com/apache/spark/pull/30958#issuecomment-751992712
Spark SQL no serde row format field delimit default value is '\u0001' -> Spark SQL no serde row format field delimit default value should be '\u0001'?
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* This patch passes all tests.
* This patch merges cleanly.
* This patch adds no public classes.
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[GitHub] [spark] viirya commented on a change in pull request #30958: [SPARK-33930][SQL] Script Transform default FIELD DELIMIT should be \u0001 for no serde
Posted by GitBox <gi...@apache.org>.
viirya commented on a change in pull request #30958:
URL: https://github.com/apache/spark/pull/30958#discussion_r549623159
##########
File path: docs/sql-migration-guide.md
##########
@@ -30,6 +30,8 @@ license: |
- In Spark 3.2, `ALTER TABLE .. RENAME TO PARTITION` throws `PartitionAlreadyExistsException` instead of `AnalysisException` for tables from Hive external when the target partition already exists.
+ - In Spark 3.2, script transform default `FIELD DELIMIT` is `\u0001` for no serde mode. In Spark 3.1 or earlier, the default `FIELD DELIMIT` is `\t`.
Review comment:
Do we need backquote? Maybe ``` `FIELD DELIMIT` ``` -> `FIELD DELIMIT`?
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[GitHub] [spark] AngersZhuuuu commented on pull request #30958: [SPARK-33930][SQL] Script Transform default FIELD DELIMIT should be \u0001 for no serde
Posted by GitBox <gi...@apache.org>.
AngersZhuuuu commented on pull request #30958:
URL: https://github.com/apache/spark/pull/30958#issuecomment-751995606
> This also changes current behavior. Shall we update the SQL migration guide too?
How about current updated migration guide doc?
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[GitHub] [spark] AngersZhuuuu edited a comment on pull request #30958: [SPARK-33930][SQL] Spark SQL no serde row format field delimit default value is '\u0001'
Posted by GitBox <gi...@apache.org>.
AngersZhuuuu edited a comment on pull request #30958:
URL: https://github.com/apache/spark/pull/30958#issuecomment-751974605
> Not related to the change. But I notice that some contributors usually use screenshots in the description. I personally don't recommend this approach. The images cannot be indexed and searched. So I suggest that for problem and fix description, some text are more helpful.
Yea, thanks for your suggestion, I will update pr desc. And will pay attention to this problem.
Maybe we should sen an email to mention this ?
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[GitHub] [spark] cloud-fan commented on a change in pull request #30958: [SPARK-33930][SQL] Spark SQL no serde row format field delimit default value is '\u0001'
Posted by GitBox <gi...@apache.org>.
cloud-fan commented on a change in pull request #30958:
URL: https://github.com/apache/spark/pull/30958#discussion_r549600913
##########
File path: sql/core/src/test/scala/org/apache/spark/sql/execution/BaseScriptTransformationSuite.scala
##########
@@ -440,6 +441,31 @@ abstract class BaseScriptTransformationSuite extends SparkPlanTest with SQLTestU
}
}
}
+
+ test("SPARK-33930: Script Transform default FIELD DELIMIT should be \u0001 (no serde)") {
+ withTempView("v") {
+ val df = Seq(
+ (1, 2, 3),
+ (2, 3, 4),
+ (3, 4, 5)
+ ).toDF("a", "b", "c") // Note column d's data type is Decimal(38, 18)
Review comment:
where is column d?
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[GitHub] [spark] SparkQA commented on pull request #30958: [SPARK-33930][SQL] Script Transform default FIELD DELIMIT should be \u0001 for no serde
Posted by GitBox <gi...@apache.org>.
SparkQA commented on pull request #30958:
URL: https://github.com/apache/spark/pull/30958#issuecomment-752059690
**[Test build #133484 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/133484/testReport)** for PR 30958 at commit [`4691cb3`](https://github.com/apache/spark/commit/4691cb328c56b728586fb3c1893ff77983b90744).
* This patch **fails Spark unit tests**.
* This patch merges cleanly.
* This patch adds no public classes.
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[GitHub] [spark] AngersZhuuuu commented on a change in pull request #30958: [SPARK-33930][SQL] Spark SQL no serde row format field delimit default value is '\u0001'
Posted by GitBox <gi...@apache.org>.
AngersZhuuuu commented on a change in pull request #30958:
URL: https://github.com/apache/spark/pull/30958#discussion_r549601552
##########
File path: sql/core/src/test/scala/org/apache/spark/sql/execution/BaseScriptTransformationSuite.scala
##########
@@ -440,6 +441,31 @@ abstract class BaseScriptTransformationSuite extends SparkPlanTest with SQLTestU
}
}
}
+
+ test("SPARK-33930: Script Transform default FIELD DELIMIT should be \u0001 (no serde)") {
+ withTempView("v") {
+ val df = Seq(
+ (1, 2, 3),
+ (2, 3, 4),
+ (3, 4, 5)
+ ).toDF("a", "b", "c") // Note column d's data type is Decimal(38, 18)
Review comment:
> where is column d?
Remove this unrelated comment. Copy code from other UT..forgot remove this comment
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[GitHub] [spark] AngersZhuuuu commented on pull request #30958: [SPARK-33930][SQL] Spark SQL no serde row format field delimit default value is '\u0001'
Posted by GitBox <gi...@apache.org>.
AngersZhuuuu commented on pull request #30958:
URL: https://github.com/apache/spark/pull/30958#issuecomment-751974605
> Not related to the change. But I notice that some contributors usually use screenshots in the description. I personally don't recommend this approach. The images cannot be indexed and searched. So I suggest that for problem and fix description, some text are more helpful.
Yea, thanks for your suggestion, I will update pr desc.
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Kubernetes integration test status failure
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[GitHub] [spark] viirya commented on pull request #30958: [SPARK-33930][SQL] Spark SQL no serde row format field delimit default value should be '\u0001'?
Posted by GitBox <gi...@apache.org>.
viirya commented on pull request #30958:
URL: https://github.com/apache/spark/pull/30958#issuecomment-751993055
Maybe "Script Transform default FIELD DELIMIT should be \u0001 for no serde"?
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URL: https://github.com/apache/spark/pull/30958#issuecomment-751958635
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