refactor: Move SQLConnector into a separate module, for use by both SQLStream and SQLSink

singer_sdk/__init__.py

@@ -1,16 +1,11 @@
 """SDK for building Singer taps."""
 
 from singer_sdk import streams
+from singer_sdk.connectors import SQLConnector
 from singer_sdk.mapper_base import InlineMapper
 from singer_sdk.plugin_base import PluginBase
 from singer_sdk.sinks import BatchSink, RecordSink, Sink, SQLSink
-from singer_sdk.streams import (
-    GraphQLStream,
-    RESTStream,
-    SQLConnector,
-    SQLStream,
-    Stream,
-)
+from singer_sdk.streams import GraphQLStream, RESTStream, SQLStream, Stream
 from singer_sdk.tap_base import SQLTap, Tap
 from singer_sdk.target_base import SQLTarget, Target
 

singer_sdk/connectors/__init__.py

@@ -0,0 +1,5 @@
+"""Module for SQL-related operations."""
+
+from .sql import SQLConnector
+
+__all__ = ["SQLConnector"]