Snowflake: Add support for CREATE USER (#1950)

src/ast/mod.rs

@@ -4355,6 +4355,11 @@ pub enum Statement {
     ///
     /// See [ReturnStatement]
     Return(ReturnStatement),
+    /// ```sql
+    /// CREATE [OR REPLACE] USER <user> [IF NOT EXISTS]
+    /// ```
+    /// [Snowflake](https://docs.snowflake.com/en/sql-reference/sql/create-user)
+    CreateUser(CreateUser),
 }
 
 /// ```sql
@@ -6193,6 +6198,7 @@ impl fmt::Display for Statement {
             Statement::Return(r) => write!(f, "{r}"),
             Statement::List(command) => write!(f, "LIST {command}"),
             Statement::Remove(command) => write!(f, "REMOVE {command}"),
+            Statement::CreateUser(s) => write!(f, "{s}"),
         }
     }
 }
@@ -10125,6 +10131,50 @@ impl fmt::Display for MemberOf {
     }
 }
 
+/// Creates a user
+///
+/// Syntax:
+/// ```sql
+/// CREATE [OR REPLACE] USER [IF NOT EXISTS] <name> [OPTIONS]
+/// ```
+///
+/// [Snowflake](https://docs.snowflake.com/en/sql-reference/sql/create-user)
+#[derive(Debug, Clone, PartialEq, PartialOrd, Eq, Ord, Hash)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "visitor", derive(Visit, VisitMut))]
+pub struct CreateUser {
+    pub or_replace: bool,
+    pub if_not_exists: bool,
+    pub name: Ident,
+    pub options: KeyValueOptions,
+    pub with_tags: bool,
+    pub tags: KeyValueOptions,
+}
+
+impl fmt::Display for CreateUser {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "CREATE")?;
+        if self.or_replace {
+            write!(f, " OR REPLACE")?;
+        }
+        write!(f, " USER")?;
+        if self.if_not_exists {
+            write!(f, " IF NOT EXISTS")?;
+        }
+        write!(f, " {}", self.name)?;
+        if !self.options.options.is_empty() {
+            write!(f, " {}", self.options)?;
+        }
+        if !self.tags.options.is_empty() {
+            if self.with_tags {
+                write!(f, " WITH")?;
+            }
+            write!(f, " TAG ({})", self.tags)?;
+        }
+        Ok(())
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use crate::tokenizer::Location;