[SPARK-14826][SQL] Remove HiveQueryExecution

## What changes were proposed in this pull request?
This patch removes HiveQueryExecution. As part of this, I consolidated all the describe commands into DescribeTableCommand.

## How was this patch tested?
Should be covered by existing tests.

Author: Reynold Xin <rxin@databricks.com>

Closes #12588 from rxin/SPARK-14826.

1 files changed, 1 insertions, 1 deletions

diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateTimeUtils.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateTimeUtils.scala
index 5393cb8ab3..f84c6592c6 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateTimeUtils.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateTimeUtils.scala
@@ -76,7 +76,7 @@ object DateTimeUtils {
   }
 
   // `SimpleDateFormat` is not thread-safe.
-  private val threadLocalTimestampFormat = new ThreadLocal[DateFormat] {
+  val threadLocalTimestampFormat = new ThreadLocal[DateFormat] {
     override def initialValue(): SimpleDateFormat = {
       new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")
     }