Better static tables

README.md

@@ -192,6 +192,7 @@ This table shows the mapping between main library component versions and minimum
 | 0.11.0                   | 8                    | 1.8.20         | 0.11.0-358             | 3.0.0           | 11.0.0               |
 | 0.11.1                   | 8                    | 1.8.20         | 0.11.0-358             | 3.0.0           | 11.0.0               |
 | 0.12.0                   | 8                    | 1.9.0          | 0.11.0-358             | 3.0.0           | 11.0.0               |
+| 0.12.1                   | 8                    | 1.9.0          | 0.11.0-358             | 3.0.0           | 11.0.0               |
 
 ## Usage example
 

core/generated-sources/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/DataColumnArithmetics.kt

@@ -6,6 +6,16 @@ import org.jetbrains.kotlinx.dataframe.Predicate
 import org.jetbrains.kotlinx.dataframe.columns.ColumnReference
 import java.math.BigDecimal
 
+public operator fun DataColumn<Boolean>.not(): DataColumn<Boolean> = map { !it }
+
+@JvmName("notBooleanNullable")
+public operator fun DataColumn<Boolean?>.not(): DataColumn<Boolean?> = map { it?.not() }
+
+public operator fun ColumnReference<Boolean>.not(): ColumnReference<Boolean> = map { !it }
+
+@JvmName("notBooleanNullable")
+public operator fun ColumnReference<Boolean?>.not(): ColumnReference<Boolean?> = map { it?.not() }
+
 public operator fun DataColumn<Int>.plus(value: Int): DataColumn<Int> = map { it + value }
 
 public operator fun DataColumn<Int>.minus(value: Int): DataColumn<Int> = map { it - value }

core/generated-sources/src/main/kotlin/org/jetbrains/kotlinx/dataframe/impl/api/rename.kt

@@ -22,14 +22,14 @@ internal fun <T, C> RenameClause<T, C>.renameImpl(newNames: Array<out String>):
 internal fun <T, C> RenameClause<T, C>.renameImpl(transform: (ColumnWithPath<C>) -> String): DataFrame<T> {
     // get all selected columns and their paths
     val selectedColumnsWithPath = df.getColumnsWithPaths(columns)
-        .associateBy { it.data }
+        .associateBy { it.path }
     // gather a tree of all columns where the nodes will be renamed
     val tree = df.getColumnsWithPaths { all().rec() }.collectTree()
 
     // perform rename in nodes
-    tree.allChildrenNotNull().forEach { node ->
+    tree.allChildrenNotNull().map { it to it.pathFromRoot() }.forEach { (node, originalPath) ->
         // Check if the current node/column is a selected column and, if so, get its ColumnWithPath
-        val column = selectedColumnsWithPath[node.data] ?: return@forEach
+        val column = selectedColumnsWithPath[originalPath] ?: return@forEach
         // Use the found selected ColumnWithPath to query for the new name
         val newColumnName = transform(column)
         node.name = newColumnName