Support ALTER TABLE ... SET LOCATION (#1154)

Co-authored-by: Andrew Lamb <andrew@nerdnetworks.org>

src/ast/mod.rs

@@ -2001,6 +2001,7 @@ pub enum Statement {
         if_exists: bool,
         only: bool,
         operations: Vec<AlterTableOperation>,
+        location: Option<HiveSetLocation>,
     },
     /// ```sql
     /// ALTER INDEX
@@ -3249,12 +3250,10 @@ impl fmt::Display for Statement {
                     }
                 }
                 if *external {
-                    write!(
-                        f,
-                        " STORED AS {} LOCATION '{}'",
-                        file_format.as_ref().unwrap(),
-                        location.as_ref().unwrap()
-                    )?;
+                    if let Some(file_format) = &file_format {
+                        write!(f, " STORED AS {file_format}")?;
+                    }
+                    write!(f, " LOCATION '{}'", location.as_ref().unwrap())?;
                 }
                 if !table_properties.is_empty() {
                     write!(
@@ -3504,6 +3503,7 @@ impl fmt::Display for Statement {
                 if_exists,
                 only,
                 operations,
+                location,
             } => {
                 write!(f, "ALTER TABLE ")?;
                 if *if_exists {
@@ -3516,7 +3516,11 @@ impl fmt::Display for Statement {
                     f,
                     "{name} {operations}",
                     operations = display_comma_separated(operations)
-                )
+                )?;
+                if let Some(loc) = location {
+                    write!(f, " {loc}")?
+                }
+                Ok(())
             }
             Statement::AlterIndex { name, operation } => {
                 write!(f, "ALTER INDEX {name} {operation}")
@@ -5840,6 +5844,23 @@ impl fmt::Display for LockTableType {
     }
 }
 
+#[derive(Debug, Clone, PartialEq, PartialOrd, Eq, Ord, Hash)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "visitor", derive(Visit, VisitMut))]
+pub struct HiveSetLocation {
+    pub has_set: bool,
+    pub location: Ident,
+}
+
+impl fmt::Display for HiveSetLocation {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        if self.has_set {
+            write!(f, "SET ")?;
+        }
+        write!(f, "LOCATION {}", self.location)
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;

src/parser/mod.rs

@@ -5529,11 +5529,26 @@ impl<'a> Parser<'a> {
                 let only = self.parse_keyword(Keyword::ONLY); // [ ONLY ]
                 let table_name = self.parse_object_name(false)?;
                 let operations = self.parse_comma_separated(Parser::parse_alter_table_operation)?;
+
+                let mut location = None;
+                if self.parse_keyword(Keyword::LOCATION) {
+                    location = Some(HiveSetLocation {
+                        has_set: false,
+                        location: self.parse_identifier(false)?,
+                    });
+                } else if self.parse_keywords(&[Keyword::SET, Keyword::LOCATION]) {
+                    location = Some(HiveSetLocation {
+                        has_set: true,
+                        location: self.parse_identifier(false)?,
+                    });
+                }
+
                 Ok(Statement::AlterTable {
                     name: table_name,
                     if_exists,
                     only,
                     operations,
+                    location,
                 })
             }
             Keyword::INDEX => {

src/test_utils.rs

@@ -256,6 +256,7 @@ pub fn alter_table_op_with_name(stmt: Statement, expected_name: &str) -> AlterTa
             if_exists,
             only: is_only,
             operations,
+            location: _,
         } => {
             assert_eq!(name.to_string(), expected_name);
             assert!(!if_exists);
@@ -265,6 +266,7 @@ pub fn alter_table_op_with_name(stmt: Statement, expected_name: &str) -> AlterTa
         _ => panic!("Expected ALTER TABLE statement"),
     }
 }
+
 pub fn alter_table_op(stmt: Statement) -> AlterTableOperation {
     alter_table_op_with_name(stmt, "tab")
 }

tests/sqlparser_hive.rs

@@ -124,6 +124,19 @@ fn test_alter_partition() {
     hive().verified_stmt(alter);
 }
 
+#[test]
+fn test_alter_with_location() {
+    let alter =
+        "ALTER TABLE db.table PARTITION (a = 2) RENAME TO PARTITION (a = 1) LOCATION 's3://...'";
+    hive().verified_stmt(alter);
+}
+
+#[test]
+fn test_alter_with_set_location() {
+    let alter = "ALTER TABLE db.table PARTITION (a = 2) RENAME TO PARTITION (a = 1) SET LOCATION 's3://...'";
+    hive().verified_stmt(alter);
+}
+
 #[test]
 fn test_add_partition() {
     let add = "ALTER TABLE db.table ADD IF NOT EXISTS PARTITION (a = 'asdf', b = 2)";

tests/sqlparser_postgres.rs

@@ -677,6 +677,7 @@ fn parse_alter_table_add_columns() {
             if_exists,
             only,
             operations,
+            location: _,
         } => {
             assert_eq!(name.to_string(), "tab");
             assert!(if_exists);