refactor: separate a json2 extension type (#8745)

Signed-off-by: luofucong <luofc@foxmail.com>

src/sql/src/error.rs

@@ -339,14 +339,6 @@ pub enum Error {
         #[snafu(implicit)]
         location: Location,
     },
-
-    #[snafu(display("Failed to set JSON structure settings: {value}"))]
-    SetJsonSettings {
-        value: String,
-        source: datatypes::error::Error,
-        #[snafu(implicit)]
-        location: Location,
-    },
 }
 
 impl ErrorExt for Error {
@@ -392,9 +384,7 @@ impl ErrorExt for Error {
             #[cfg(feature = "enterprise")]
             InvalidTriggerWebhookOption { .. } => StatusCode::InvalidArguments,
 
-            SerializeColumnDefaultConstraint { source, .. } | SetJsonSettings { source, .. } => {
-                source.status_code()
-            }
+            SerializeColumnDefaultConstraint { source, .. } => source.status_code(),
 
             ConvertToGrpcDataType { source, .. } => source.status_code(),
             SqlCommon { source, .. } => source.status_code(),

src/sql/src/statements.rs

@@ -39,7 +39,7 @@ use api::helper::ColumnDataTypeWrapper;
 use api::v1::SemanticType;
 use common_sql::default_constraint::parse_column_default_constraint;
 use common_time::timezone::Timezone;
-use datatypes::extension::json::{JsonExtensionType, JsonMetadata};
+use datatypes::extension::json::{Json2ExtensionType, JsonMetadata};
 use datatypes::prelude::ConcreteDataType;
 use datatypes::schema::{COMMENT_KEY, ColumnDefaultConstraint, ColumnSchema};
 use datatypes::types::json_type::JsonNativeType;
@@ -54,8 +54,8 @@ use crate::ast::{
 };
 use crate::error::{
     self, ConvertToGrpcDataTypeSnafu, ConvertValueSnafu, Result,
-    SerializeColumnDefaultConstraintSnafu, SetFulltextOptionSnafu, SetJsonSettingsSnafu,
-    SetSkippingIndexOptionSnafu, SetVectorIndexOptionSnafu, SqlCommonSnafu,
+    SerializeColumnDefaultConstraintSnafu, SetFulltextOptionSnafu, SetSkippingIndexOptionSnafu,
+    SetVectorIndexOptionSnafu, SqlCommonSnafu,
 };
 use crate::statements::create::Column;
 pub use crate::statements::option_map::OptionMap;
@@ -164,14 +164,8 @@ pub fn column_to_schema(
     };
     if is_json2_column {
         let settings = column.extensions.build_json_settings()?.unwrap_or_default();
-        let extension = JsonExtensionType::new(Arc::new(JsonMetadata {
-            json_settings: Some(settings.clone()),
-        }));
-        column_schema
-            .with_extension_type(&extension)
-            .with_context(|_| SetJsonSettingsSnafu {
-                value: format!("{settings:?}"),
-            })?;
+        let extension = Json2ExtensionType::new(Arc::new(JsonMetadata::new(settings)));
+        column_schema.with_extension_type(&extension);
     }
 
     Ok(column_schema)