HIVE-6051: Create DecimalColumnVector and a representative VectorExpression for decimal (Eric Hanson)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1556595 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6154 : HiveServer2 returns a detailed error message to the client only when the underlying exception is a HiveSQLException (Vaibhav Gumashta via Thejas Nair)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1556648 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5224 : When creating table with AVRO serde, the "avro.schema.url" should be about to load serde schema from file system beside HDFS (Shuaishuai Nie via Thejas Nair)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1556651 13f79535-47bb-0310-9956-ffa450edef68