Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/6074#discussion_r30108991
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/LogicalPlan.scala
---
@@ -126,6 +126,45 @@ abstract class LogicalPlan extends
QueryPlan[LogicalPlan] with Logging {
throwErrors: Boolean = false): Option[NamedExpression] =
resolve(nameParts, output, resolver, throwErrors)
+ def resolveQuoted(
+ name: String,
+ resolver: Resolver): Option[NamedExpression] = {
+ resolve(parseAttributeName(name), resolver, true)
+ }
+
+ private def parseAttributeName(name: String) = {
+ val e = new AnalysisException(s"wrong syntax for attribute name:
$name")
+ val nameParts = scala.collection.mutable.ArrayBuffer.empty[String]
+ val tmp = scala.collection.mutable.ArrayBuffer.empty[Char]
--- End diff --
instead of an iterator, how about just access a char string directly?
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