Snowflake: parse DESCRIBE STAGE (DescribeObjectType::Stage)

Author: Wojciech Padlo

src/ast/mod.rs

@@ -9718,6 +9718,8 @@ pub enum DescribeObjectType {
     Schema,
     /// `TASK`
     Task,
+    /// `STAGE`
+    Stage,
 }
 
 impl fmt::Display for DescribeObjectType {
@@ -9728,6 +9730,7 @@ impl fmt::Display for DescribeObjectType {
             DescribeObjectType::Database => "DATABASE",
             DescribeObjectType::Schema => "SCHEMA",
             DescribeObjectType::Task => "TASK",
+            DescribeObjectType::Stage => "STAGE",
         })
     }
 }

src/parser/mod.rs

@@ -14555,13 +14555,15 @@ impl<'a> Parser<'a> {
                         Keyword::DATABASE,
                         Keyword::SCHEMA,
                         Keyword::TASK,
+                        Keyword::STAGE,
                     ]) {
                         let object_type = match kw {
                             Keyword::TABLE => DescribeObjectType::Table,
                             Keyword::VIEW => DescribeObjectType::View,
                             Keyword::DATABASE => DescribeObjectType::Database,
                             Keyword::SCHEMA => DescribeObjectType::Schema,
                             Keyword::TASK => DescribeObjectType::Task,
+                            Keyword::STAGE => DescribeObjectType::Stage,
                             _ => return self.expected("a describe object type", self.peek_token()),
                         };
                         let object_name = self.parse_object_name(false)?;