feat: reserve internal column

src/store-api/src/metadata.rs

@@ -34,6 +34,7 @@ use snafu::{ensure, Location, OptionExt, ResultExt, Snafu};
 
 use crate::region_request::{AddColumn, AddColumnLocation, AlterKind};
 use crate::storage::{ColumnId, RegionId};
+use crate::storage::consts::is_internal_column;
 
 pub type Result<T> = std::result::Result<T, MetadataError>;
 
@@ -368,6 +369,16 @@ impl RegionMetadata {
             );
         }
 
+        ensure!(
+            !is_internal_column(&column_metadata.column_schema.name),
+            InvalidMetaSnafu {
+                reason: format!(
+                    "{} is internal column name that can not be used",
+                    column_metadata.column_schema.name
+                ),
+            }
+        );
+
         Ok(())
     }
 }

src/store-api/src/storage/consts.rs

@@ -84,6 +84,17 @@ pub const OP_TYPE_COLUMN_NAME: &str = "__op_type";
 /// Name for reserved column: primary_key
 pub const PRIMARY_KEY_COLUMN_NAME: &str = "__primary_key";
 
+/// Internal Column Name 
+static INTERNAL_COLUMN_VEC: [&str; 3] = [
+    SEQUENCE_COLUMN_NAME,
+    OP_TYPE_COLUMN_NAME,
+    PRIMARY_KEY_COLUMN_NAME,
+];
+
+pub fn is_internal_column(name: &str) -> bool {
+    INTERNAL_COLUMN_VEC.iter().any(|&column| name.contains(column))
+}
+
 // -----------------------------------------------------------------------------
 
 // ---------- Default options --------------------------------------------------