Updates examples to remove russian lang

Author: asm0dey

Diff for: examples/src/main/kotlin/org/jetbrains/spark/api/examples/Main.kt

@@ -42,7 +42,7 @@ object Main {
 
 
         val pairs = spark
-                .toDS(listOf(2 to "ад", 4 to "луна", 6 to "ягодка"))
+                .toDS(listOf(2 to "hell", 4 to "moon", 6 to "berry"))
 
         triples
                 .leftJoin(pairs, triples.col("first").multiply(2).eq(pairs.col("first")))

Diff for: examples/src/main/kotlin/org/jetbrains/spark/api/examples/MapAndListOperations.kt

@@ -22,14 +22,14 @@ package org.jetbrains.spark.api.examples
 import org.jetbrains.spark.api.*
 
 fun main() {
-    withSpark(props = mapOf("spark.sql.codegen.wholeStage" to false)) {
+    withSpark(props = mapOf("spark.sql.codegen.wholeStage" to true)) {
         dsOf(mapOf(1 to c(1, 2, 3), 2 to c(1, 2, 3)), mapOf(3 to c(1, 2, 3), 4 to c(1, 2, 3)))
                 .flatMap { it.toList().map { p -> listOf(p.first, p.second._1, p.second._2, p.second._3) }.iterator() }
                 .flatten()
                 .map { c(it) }
                 .also { it.printSchema() }
                 .distinct()
-                .sort("a")
+                .sort("_1")
                 .debugCodegen()
                 .show()
     }

Diff for: examples/src/main/kotlin/org/jetbrains/spark/api/examples/NonWorkingExample.kt

@@ -23,9 +23,11 @@ import org.jetbrains.spark.api.*
 
 /**
  * Currently doesn't work because of [[https://issues.apache.org/jira/browse/SPARK-31854]]
+ * But works with `spark.sql.codegen.wholeStage` turned off.
+ * Fixed in 2.4.7 and 3.0.0-preview3
  */
 fun main() {
-    withSpark(props = mapOf("spark.sql.codegen.wholeStage" to true)) {
+    withSpark(props = mapOf("spark.sql.codegen.wholeStage" to false)) {
         dsOf(1, null, 2)
                 .map { c(it) }
                 .show()