Mysql: Add SRID column option (apache#1852)

Author: MohamedAbdeen21

src/ast/ddl.rs

@@ -1758,6 +1758,13 @@ pub enum ColumnOption {
     /// ```
     /// [Snowflake]: https://docs.snowflake.com/en/sql-reference/sql/create-table
     Tags(TagsColumnOption),
+    /// MySQL specific: Spatial reference identifier
+    /// Syntax:
+    /// ```sql
+    /// CREATE TABLE geom (g GEOMETRY NOT NULL SRID 4326);
+    /// ```
+    /// [MySQL]: https://dev.mysql.com/doc/refman/8.4/en/creating-spatial-indexes.html
+    Srid(Box<Expr>),
 }
 
 impl fmt::Display for ColumnOption {
@@ -1873,6 +1880,9 @@ impl fmt::Display for ColumnOption {
             Tags(tags) => {
                 write!(f, "{tags}")
             }
+            Srid(srid) => {
+                write!(f, "SRID {srid}")
+            }
         }
     }
 }

src/ast/spans.rs

@@ -871,6 +871,7 @@ impl Spanned for ColumnOption {
             ColumnOption::OnConflict(..) => Span::empty(),
             ColumnOption::Policy(..) => Span::empty(),
             ColumnOption::Tags(..) => Span::empty(),
+            ColumnOption::Srid(..) => Span::empty(),
         }
     }
 }

src/keywords.rs

@@ -844,6 +844,7 @@ define_keywords!(
     SQLSTATE,
     SQLWARNING,
     SQRT,
+    SRID,
     STABLE,
     STAGE,
     START,

src/parser/mod.rs

@@ -7754,6 +7754,10 @@ impl<'a> Parser<'a> {
             && dialect_of!(self is MySqlDialect | SQLiteDialect | DuckDbDialect | GenericDialect)
         {
             self.parse_optional_column_option_as()
+        } else if self.parse_keyword(Keyword::SRID)
+            && dialect_of!(self is MySqlDialect | GenericDialect)
+        {
+            Ok(Some(ColumnOption::Srid(Box::new(self.parse_expr()?))))
         } else if self.parse_keyword(Keyword::IDENTITY)
             && dialect_of!(self is MsSqlDialect | GenericDialect)
         {

tests/sqlparser_mysql.rs

@@ -3745,6 +3745,11 @@ fn parse_begin_without_transaction() {
     mysql().verified_stmt("BEGIN");
 }
 
+#[test]
+fn parse_geometric_types_srid_option() {
+    mysql_and_generic().verified_stmt("CREATE TABLE t (a geometry SRID 4326)");
+}
+
 #[test]
 fn parse_double_precision() {
     mysql().verified_stmt("CREATE TABLE foo (bar DOUBLE)");