Revert "Add Iceberg as a dep (apache#916)"

This reverts commit 8a7c1a9.

Author: dongjoon-hyun

pom.xml

@@ -194,7 +194,6 @@
     <selenium.version>3.141.59</selenium.version>
     <htmlunit.version>2.40.0</htmlunit.version>
     <acispark.callhome.version>0.2.0</acispark.callhome.version>
-    <iceberg.version>0.12.0-apple-preview-SNAPSHOT</iceberg.version>
     <!--
     Managed up from older version from Avro; sync with jackson-module-paranamer dependency version
     -->
@@ -294,10 +293,6 @@
       <id>apple</id>
       <url>https://artifacts.apple.com/libs-release</url>
     </repository>
-    <repository>
-      <id>apple-snapshot</id>
-      <url>https://artifacts.apple.com/libs-snapshot</url>
-    </repository>
   </repositories>
   <pluginRepositories>
     <pluginRepository>
@@ -2405,11 +2400,6 @@
           </exclusion>
         </exclusions>
       </dependency>
-      <dependency>
-        <groupId>org.apache.iceberg</groupId>
-        <artifactId>iceberg-spark3-runtime</artifactId>
-        <version>${iceberg.version}</version>
-      </dependency>
     </dependencies>
   </dependencyManagement>
 

project/SparkBuild.scala

@@ -270,7 +270,6 @@ object SparkBuild extends PomBuild {
       "gcs-maven-central-mirror" at "https://maven-central.storage-download.googleapis.com/maven2/",
       DefaultMavenRepository,
       "apple" at "https://artifacts.apple.com/libs-release",
-      "apple-snapshot" at "https://artifacts.apple.com/libs-snapshot",
       Resolver.mavenLocal,
       Resolver.file("ivyLocal", file(Path.userHome.absolutePath + "/.ivy2/local"))(Resolver.ivyStylePatterns)
     ),

sql/catalyst/src/main/scala/org/apache/spark/sql/connector/expressions/expressions.scala

@@ -116,22 +116,6 @@ private[sql] final case class BucketTransform(
   }
 }
 
-private[sql] object TruncateTransform {
-  def unapply(expr: Expression): Option[(Int, FieldReference)] = expr match {
-    case transform: Transform =>
-      transform match {
-        case NamedTransform("truncate", Seq(Ref(seq: Seq[String]), Lit(value: Int, IntegerType))) =>
-          Some((value, FieldReference(seq)))
-        case NamedTransform("truncate", Seq(Lit(value: Int, IntegerType), Ref(seq: Seq[String]))) =>
-          Some((value, FieldReference(seq)))
-        case _ =>
-          None
-      }
-    case _ =>
-      None
-  }
-}
-
 private[sql] object BucketTransform {
   def unapply(expr: Expression): Option[(Int, FieldReference)] = expr match {
     case transform: Transform =>

sql/core/pom.xml

@@ -117,10 +117,6 @@
       <groupId>org.apache.xbean</groupId>
       <artifactId>xbean-asm7-shaded</artifactId>
     </dependency>
-    <dependency>
-      <groupId>org.apache.iceberg</groupId>
-      <artifactId>iceberg-spark3-runtime</artifactId>
-    </dependency>
     <dependency>
       <groupId>org.scalacheck</groupId>
       <artifactId>scalacheck_${scala.binary.version}</artifactId>

sql/core/src/main/scala/org/apache/spark/sql/catalyst/analysis/IcebergSupport.scala

@@ -19,10 +19,10 @@ package org.apache.spark.sql.execution.datasources.v2
 
 import org.apache.spark.sql.AnalysisException
 import org.apache.spark.sql.catalyst.analysis.Resolver
-import org.apache.spark.sql.catalyst.expressions.{Ascending, Descending, Expression, IcebergBucketTransform, IcebergDayTransform, IcebergHourTransform, IcebergMonthTransform, IcebergTruncateTransform, IcebergYearTransform, NamedExpression, NullOrdering, NullsFirst, NullsLast, SortDirection, SortOrder}
+import org.apache.spark.sql.catalyst.expressions.{Ascending, Descending, Expression, NamedExpression, NullOrdering, NullsFirst, NullsLast, SortDirection, SortOrder}
 import org.apache.spark.sql.catalyst.plans.logical.{LogicalPlan, RepartitionByExpression, Sort}
 import org.apache.spark.sql.connector.distributions.{ClusteredDistribution, OrderedDistribution, UnspecifiedDistribution}
-import org.apache.spark.sql.connector.expressions.{BucketTransform, DaysTransform, Expression => V2Expression, FieldReference, HoursTransform, IdentityTransform, MonthsTransform, NullOrdering => V2NullOrdering, SortDirection => V2SortDirection, SortValue, TruncateTransform, YearsTransform}
+import org.apache.spark.sql.connector.expressions.{Expression => V2Expression, FieldReference, IdentityTransform, NullOrdering => V2NullOrdering, SortDirection => V2SortDirection, SortValue}
 import org.apache.spark.sql.connector.write.{RequiresDistributionAndOrdering, Write}
 import org.apache.spark.sql.internal.SQLConf
 
@@ -87,18 +87,6 @@ object DistributionAndOrderingUtils {
         SortOrder(catalystChild, toCatalyst(direction), toCatalyst(nullOrdering), Seq.empty)
       case IdentityTransform(ref) =>
         resolve(ref)
-      case BucketTransform(numBuckets, ref) =>
-        IcebergBucketTransform(numBuckets, resolve(ref))
-      case TruncateTransform(length, ref) =>
-        IcebergTruncateTransform(resolve(ref), length)
-      case YearsTransform(ref) =>
-        IcebergYearTransform(resolve(ref))
-      case MonthsTransform(ref) =>
-        IcebergMonthTransform(resolve(ref))
-      case DaysTransform(ref) =>
-        IcebergDayTransform(resolve(ref))
-      case HoursTransform(ref) =>
-        IcebergHourTransform(resolve(ref))
       case ref: FieldReference =>
         resolve(ref)
       case _ =>