init research

dataframe/plugins/kotlin-dataframe/testData/box/columnName.kt

@@ -0,0 +1,19 @@
+import org.jetbrains.kotlinx.dataframe.*
+import org.jetbrains.kotlinx.dataframe.annotations.*
+import org.jetbrains.kotlinx.dataframe.api.*
+import org.jetbrains.kotlinx.dataframe.io.*
+
+@DataSchema
+data class Record(
+    @ColumnName("a")
+    val abc: String,
+)
+
+fun box(): String {
+    val df = dataFrameOf("a")("1").cast<Record>()
+    df.abc
+
+    val df1 = df.add("b") { 1 }
+    df1.a
+    return "OK"
+}