HyukjinKwon commented on code in PR #48459:
URL: https://github.com/apache/spark/pull/48459#discussion_r1804017893
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sql/api/src/main/scala/org/apache/spark/sql/internal/types/AbstractStringType.scala:
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@@ -21,25 +21,35 @@ import org.apache.spark.sql.internal.SqlApiConf
import org.apache.spark.sql.types.{AbstractDataType, DataType, StringType}
/**
- * AbstractStringType is an abstract class for StringType with collation
support. As every type of
- * collation can support trim specifier this class is parametrized with it.
+ * AbstractStringType is an abstract class for StringType with collation
support.
*/
-abstract class AbstractStringType(private[sql] val supportsTrimCollation:
Boolean = false)
+abstract class AbstractStringType(supportsTrimCollation: Boolean = false)
Review Comment:
See also https://issues.apache.org/jira/browse/SPARK-16964 and
https://issues.apache.org/jira/browse/SPARK-16813
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