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[SPARK-24860][SQL] Support setting of partitionOverWriteMode in output options for writing DataFrame #21818

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[SPARK-24860][SQL] Support setting of partitionOverWriteMode in output options for writing DataFrame #21818

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7dd2eab
support setting of partitionOverWriteMode in output options for writi…
koertkuipers Jul 19, 2018
7d0752b
fix jira issue for dynamic partition overwrite per source test
koertkuipers Jul 19, 2018
605a325
split up long logic for enableDynamicOverwrite
koertkuipers Jul 20, 2018
a4ebf9d
simplify test for SPARK-24860
koertkuipers Jul 20, 2018
03c0926
add precendence to doc for spark.sql.sources.partitionOverwriteMode
koertkuipers Jul 25, 2018
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6 changes: 5 additions & 1 deletion sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -1335,7 +1335,11 @@ object SQLConf {
"overwriting. In dynamic mode, Spark doesn't delete partitions ahead, and only overwrite " +
"those partitions that have data written into it at runtime. By default we use static " +
"mode to keep the same behavior of Spark prior to 2.3. Note that this config doesn't " +
"affect Hive serde tables, as they are always overwritten with dynamic mode.")
"affect Hive serde tables, as they are always overwritten with dynamic mode. This can " +
"also be set as an output option for a data source using key partitionOverwriteMode " +
"(which takes precendence over this setting), e.g. " +
"dataframe.write.option(\"partitionOverwriteMode\", \"dynamic\").save(path)."
)
.stringConf
.transform(_.toUpperCase(Locale.ROOT))
.checkValues(PartitionOverwriteMode.values.map(_.toString))
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9 changes: 7 additions & 2 deletions .../scala/org/apache/spark/sql/execution/datasources/InsertIntoHadoopFsRelationCommand.scala
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Expand Up @@ -27,6 +27,7 @@ import org.apache.spark.sql.catalyst.catalog.{BucketSpec, CatalogTable, CatalogT
import org.apache.spark.sql.catalyst.catalog.CatalogTypes.TablePartitionSpec
import org.apache.spark.sql.catalyst.expressions.Attribute
import org.apache.spark.sql.catalyst.plans.logical.LogicalPlan
import org.apache.spark.sql.catalyst.util.CaseInsensitiveMap
import org.apache.spark.sql.execution.SparkPlan
import org.apache.spark.sql.execution.command._
import org.apache.spark.sql.internal.SQLConf.PartitionOverwriteMode
Expand Down Expand Up @@ -91,8 +92,12 @@ case class InsertIntoHadoopFsRelationCommand(

val pathExists = fs.exists(qualifiedOutputPath)

val enableDynamicOverwrite =
sparkSession.sessionState.conf.partitionOverwriteMode == PartitionOverwriteMode.DYNAMIC
val parameters = CaseInsensitiveMap(options)

val partitionOverwriteMode = parameters.get("partitionOverwriteMode")
.map(mode => PartitionOverwriteMode.withName(mode.toUpperCase))
.getOrElse(sparkSession.sessionState.conf.partitionOverwriteMode)
val enableDynamicOverwrite = partitionOverwriteMode == PartitionOverwriteMode.DYNAMIC
// This config only makes sense when we are overwriting a partitioned dataset with dynamic
// partition columns.
val dynamicPartitionOverwrite = enableDynamicOverwrite && mode == SaveMode.Overwrite &&
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20 changes: 20 additions & 0 deletions sql/core/src/test/scala/org/apache/spark/sql/sources/InsertSuite.scala
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Expand Up @@ -545,6 +545,26 @@ class InsertSuite extends DataSourceTest with SharedSQLContext {
}
}

test("SPARK-24860: dynamic partition overwrite specified per source without catalog table") {
withTempPath { path =>
Seq((1, 1), (2, 2)).toDF("i", "part")
.write.partitionBy("part")
.parquet(path.getAbsolutePath)
checkAnswer(spark.read.parquet(path.getAbsolutePath), Row(1, 1) :: Row(2, 2) :: Nil)

Seq((1, 2), (1, 3)).toDF("i", "part")
.write.partitionBy("part").mode("overwrite")
.option("partitionOverwriteMode", "dynamic").parquet(path.getAbsolutePath)
checkAnswer(spark.read.parquet(path.getAbsolutePath),
Row(1, 1) :: Row(1, 2) :: Row(1, 3) :: Nil)

Seq((1, 2), (1, 3)).toDF("i", "part")
.write.partitionBy("part").mode("overwrite")
.option("partitionOverwriteMode", "static").parquet(path.getAbsolutePath)
checkAnswer(spark.read.parquet(path.getAbsolutePath), Row(1, 2) :: Row(1, 3) :: Nil)
}
}

test("SPARK-24583 Wrong schema type in InsertIntoDataSourceCommand") {
withTable("test_table") {
val schema = new StructType()
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