Merge pull request #14178 from cdapio/add-bigquery-sql-string-expression-factory-type

Added BigQuery capability for SQL Expressions

Author: fernst

cdap-app-templates/cdap-etl/cdap-etl-api/src/main/java/io/cdap/cdap/etl/api/engine/sql/StandardSQLCapabilities.java

@@ -25,5 +25,9 @@ public enum StandardSQLCapabilities implements Capability {
   /**
    * Defines that factory implements SQL92 language
    */
-  SQL92
+  SQL92,
+  /**
+   * Defines that factory implements support for BigQuery specific language
+   */
+  BIGQUERY
 }