Repository: spark Updated Branches: refs/heads/master cac9b1dea -> 6ea582e36
[SPARK-24181][SQL] Better error message for writing sorted data ## What changes were proposed in this pull request? The exception message should clearly distinguish sorting and bucketing in `save` and `jdbc` write. When a user tries to write a sorted data using save or insertInto, it will throw an exception with message that `s"'$operation' does not support bucketing right now""`. We should throw `s"'$operation' does not support sortBy right now""` instead. ## How was this patch tested? More tests in `DataFrameReaderWriterSuite.scala` Author: DB Tsai <d_t...@apple.com> Closes #21235 from dbtsai/fixException. Project: http://git-wip-us.apache.org/repos/asf/spark/repo Commit: http://git-wip-us.apache.org/repos/asf/spark/commit/6ea582e3 Tree: http://git-wip-us.apache.org/repos/asf/spark/tree/6ea582e3 Diff: http://git-wip-us.apache.org/repos/asf/spark/diff/6ea582e3 Branch: refs/heads/master Commit: 6ea582e36ab0a2e4e01340f6fc8cfb8d493d567d Parents: cac9b1d Author: DB Tsai <d_t...@apple.com> Authored: Wed May 9 09:15:16 2018 -0700 Committer: DB Tsai <d_t...@apple.com> Committed: Wed May 9 09:15:16 2018 -0700 ---------------------------------------------------------------------- .../org/apache/spark/sql/DataFrameWriter.scala | 12 ++++++--- .../spark/sql/sources/BucketedWriteSuite.scala | 27 +++++++++++++++++--- .../sql/test/DataFrameReaderWriterSuite.scala | 16 ++++++++++-- 3 files changed, 46 insertions(+), 9 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/spark/blob/6ea582e3/sql/core/src/main/scala/org/apache/spark/sql/DataFrameWriter.scala ---------------------------------------------------------------------- diff --git a/sql/core/src/main/scala/org/apache/spark/sql/DataFrameWriter.scala b/sql/core/src/main/scala/org/apache/spark/sql/DataFrameWriter.scala index e183fa6..90bea2d 100644 --- a/sql/core/src/main/scala/org/apache/spark/sql/DataFrameWriter.scala +++ b/sql/core/src/main/scala/org/apache/spark/sql/DataFrameWriter.scala @@ -330,8 +330,8 @@ final class DataFrameWriter[T] private[sql](ds: Dataset[T]) { } private def getBucketSpec: Option[BucketSpec] = { - if (sortColumnNames.isDefined) { - require(numBuckets.isDefined, "sortBy must be used together with bucketBy") + if (sortColumnNames.isDefined && numBuckets.isEmpty) { + throw new AnalysisException("sortBy must be used together with bucketBy") } numBuckets.map { n => @@ -340,8 +340,12 @@ final class DataFrameWriter[T] private[sql](ds: Dataset[T]) { } private def assertNotBucketed(operation: String): Unit = { - if (numBuckets.isDefined || sortColumnNames.isDefined) { - throw new AnalysisException(s"'$operation' does not support bucketing right now") + if (getBucketSpec.isDefined) { + if (sortColumnNames.isEmpty) { + throw new AnalysisException(s"'$operation' does not support bucketBy right now") + } else { + throw new AnalysisException(s"'$operation' does not support bucketBy and sortBy right now") + } } } http://git-wip-us.apache.org/repos/asf/spark/blob/6ea582e3/sql/core/src/test/scala/org/apache/spark/sql/sources/BucketedWriteSuite.scala ---------------------------------------------------------------------- diff --git a/sql/core/src/test/scala/org/apache/spark/sql/sources/BucketedWriteSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/sources/BucketedWriteSuite.scala index 93f3efe..5ff1ea8 100644 --- a/sql/core/src/test/scala/org/apache/spark/sql/sources/BucketedWriteSuite.scala +++ b/sql/core/src/test/scala/org/apache/spark/sql/sources/BucketedWriteSuite.scala @@ -60,7 +60,10 @@ abstract class BucketedWriteSuite extends QueryTest with SQLTestUtils { test("specify sorting columns without bucketing columns") { val df = Seq(1 -> "a", 2 -> "b").toDF("i", "j") - intercept[IllegalArgumentException](df.write.sortBy("j").saveAsTable("tt")) + val e = intercept[AnalysisException] { + df.write.sortBy("j").saveAsTable("tt") + } + assert(e.getMessage == "sortBy must be used together with bucketBy;") } test("sorting by non-orderable column") { @@ -74,7 +77,16 @@ abstract class BucketedWriteSuite extends QueryTest with SQLTestUtils { val e = intercept[AnalysisException] { df.write.bucketBy(2, "i").parquet("/tmp/path") } - assert(e.getMessage == "'save' does not support bucketing right now;") + assert(e.getMessage == "'save' does not support bucketBy right now;") + } + + test("write bucketed and sorted data using save()") { + val df = Seq(1 -> "a", 2 -> "b").toDF("i", "j") + + val e = intercept[AnalysisException] { + df.write.bucketBy(2, "i").sortBy("i").parquet("/tmp/path") + } + assert(e.getMessage == "'save' does not support bucketBy and sortBy right now;") } test("write bucketed data using insertInto()") { @@ -83,7 +95,16 @@ abstract class BucketedWriteSuite extends QueryTest with SQLTestUtils { val e = intercept[AnalysisException] { df.write.bucketBy(2, "i").insertInto("tt") } - assert(e.getMessage == "'insertInto' does not support bucketing right now;") + assert(e.getMessage == "'insertInto' does not support bucketBy right now;") + } + + test("write bucketed and sorted data using insertInto()") { + val df = Seq(1 -> "a", 2 -> "b").toDF("i", "j") + + val e = intercept[AnalysisException] { + df.write.bucketBy(2, "i").sortBy("i").insertInto("tt") + } + assert(e.getMessage == "'insertInto' does not support bucketBy and sortBy right now;") } private lazy val df = { http://git-wip-us.apache.org/repos/asf/spark/blob/6ea582e3/sql/core/src/test/scala/org/apache/spark/sql/test/DataFrameReaderWriterSuite.scala ---------------------------------------------------------------------- diff --git a/sql/core/src/test/scala/org/apache/spark/sql/test/DataFrameReaderWriterSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/test/DataFrameReaderWriterSuite.scala index 14b1feb..b65058f 100644 --- a/sql/core/src/test/scala/org/apache/spark/sql/test/DataFrameReaderWriterSuite.scala +++ b/sql/core/src/test/scala/org/apache/spark/sql/test/DataFrameReaderWriterSuite.scala @@ -276,7 +276,7 @@ class DataFrameReaderWriterSuite extends QueryTest with SharedSQLContext with Be assert(LastOptions.parameters("doubleOpt") == "6.7") } - test("check jdbc() does not support partitioning or bucketing") { + test("check jdbc() does not support partitioning, bucketBy or sortBy") { val df = spark.read.text(Utils.createTempDir(namePrefix = "text").getCanonicalPath) var w = df.write.partitionBy("value") @@ -287,7 +287,19 @@ class DataFrameReaderWriterSuite extends QueryTest with SharedSQLContext with Be w = df.write.bucketBy(2, "value") e = intercept[AnalysisException](w.jdbc(null, null, null)) - Seq("jdbc", "bucketing").foreach { s => + Seq("jdbc", "does not support bucketBy right now").foreach { s => + assert(e.getMessage.toLowerCase(Locale.ROOT).contains(s.toLowerCase(Locale.ROOT))) + } + + w = df.write.sortBy("value") + e = intercept[AnalysisException](w.jdbc(null, null, null)) + Seq("sortBy must be used together with bucketBy").foreach { s => + assert(e.getMessage.toLowerCase(Locale.ROOT).contains(s.toLowerCase(Locale.ROOT))) + } + + w = df.write.bucketBy(2, "value").sortBy("value") + e = intercept[AnalysisException](w.jdbc(null, null, null)) + Seq("jdbc", "does not support bucketBy and sortBy right now").foreach { s => assert(e.getMessage.toLowerCase(Locale.ROOT).contains(s.toLowerCase(Locale.ROOT))) } } --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@spark.apache.org For additional commands, e-mail: commits-h...@spark.apache.org
