feat: add schema-linking awel example (#1081)

dbgpt/rag/schemalinker/base_linker.py

@@ -0,0 +1,60 @@
+from abc import ABC, abstractmethod
+from typing import List
+
+
+class BaseSchemaLinker(ABC):
+    """Base Linker."""
+
+    def schema_linking(self, query: str) -> List:
+        """
+        Args:
+            query (str): query text
+        Returns:
+            List: list of schema
+        """
+        return self._schema_linking(query)
+
+    def schema_linking_with_vector_db(self, query: str) -> List:
+        """
+        Args:
+            query (str): query text
+        Returns:
+            List: list of schema
+        """
+        return self._schema_linking_with_vector_db(query)
+
+    async def schema_linking_with_llm(self, query: str) -> List:
+        """ "
+        Args:
+            query(str): query text
+        Returns:
+        List: list of schema
+        """
+        return await self._schema_linking_with_llm(query)
+
+    @abstractmethod
+    def _schema_linking(self, query: str) -> List:
+        """
+        Args:
+            query (str): query text
+        Returns:
+            List: list of schema
+        """
+
+    @abstractmethod
+    def _schema_linking_with_vector_db(self, query: str) -> List:
+        """
+        Args:
+            query (str): query text
+        Returns:
+            List: list of schema
+        """
+
+    @abstractmethod
+    async def _schema_linking_with_llm(self, query: str) -> List:
+        """
+        Args:
+            query (str): query text
+        Returns:
+            List: list of schema
+        """