Github user tianyi commented on a diff in the pull request:
https://github.com/apache/spark/pull/3847#discussion_r22376322
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/sources/ddl.scala ---
@@ -70,13 +73,33 @@ private[sql] class DDLParser extends
StandardTokenParsers with PackratParsers wi
* CREATE TEMPORARY TABLE avroTable
* USING org.apache.spark.sql.avro
* OPTIONS (path "../hive/src/test/resources/data/files/episodes.avro")
+ * OR,
+ * For other external datasources not only a kind of file like:avro,
parquet, json, but a cluster database, like: cassandra an hbase etc...
+ * DDL like this:
+ * CREATE TEMPORARY TABLE cassandraTable
+ * USING org.apache.spark.sql.cassandra
+ * WITH SERDEPROP("serialization.format"="1",
"cassandra.columns.mapping"="key,data")
+ * TBLPROPERTIES("cassandra.keyspace.name" = "cassandra_keyspace")
*/
protected lazy val createTable: Parser[LogicalPlan] =
- CREATE ~ TEMPORARY ~ TABLE ~> ident ~ (USING ~> className) ~ (OPTIONS
~> options) ^^ {
- case tableName ~ provider ~ opts =>
- CreateTableUsing(tableName, provider, opts)
+ CREATE ~ TEMPORARY ~ TABLE ~> ident ~ (USING ~> className) ~
+ (OPTIONS ~> options).? ~ (WITH ~ SERDEPROP ~> properties).? ~
+ (TBLPROP ~> properties).? ^^ {
+ case tableName ~ provider ~ opts ~ serdeprop ~ tblprop =>
+ val optionParams = opts.getOrElse(Map[String,String]())
+ val serdeParams = serdeprop.getOrElse(Map[String,String]())
+ val tblParams = tblprop.getOrElse(Map[String,String]())
+ //TODO: in order to not break current interface, simple union
them, if interface changes, also change this
--- End diff --
exceeds limitation of line length
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