Feature/sql server (#119)

* added sqlserver connector

* added sqlserver docs

Author: raphael-intugle

docsite/docs/connectors/implementing-a-connector.md

@@ -1,5 +1,5 @@
 ---
-sidebar_position: 4
+sidebar_position: 5
 ---
 
 # Implementing a Connector

docsite/docs/connectors/sqlserver.md

@@ -0,0 +1,75 @@
+---
+sidebar_position: 4
+---
+
+# SQL Server
+
+The SQL Server adapter allows `intugle` to connect to Microsoft SQL Server and Azure SQL databases. It uses the modern [`mssql-python`](https://github.com/microsoft/mssql-python) driver, which connects directly to SQL Server without needing an external driver manager like ODBC.
+
+## OS Dependencies
+
+The `mssql-python` driver may require additional system-level libraries depending on your operating system (e.g., `libltdl` on Linux). Before proceeding, please ensure you have installed any necessary prerequisites for your OS.
+
+For detailed, OS-specific installation instructions, please refer to the official **[Microsoft mssql-python documentation](httpshttps://learn.microsoft.com/en-us/sql/connect/python/mssql-python/python-sql-driver-mssql-python-quickstart?view=sql-server-ver17&tabs=windows%2Cazure-sql)**.
+
+## Installation
+
+To use this adapter, you must install the necessary dependencies as an extra:
+
+```bash
+pip install "intugle[sqlserver]"
+```
+
+## Profile Configuration
+
+To configure the connection, add a `sqlserver` entry to your `profiles.yml` file.
+
+**`profiles.yml`**
+```yaml
+sqlserver:
+  name: my_sqlserver_source # A unique name for this source
+  type: sqlserver
+  host: "your_server_address"
+  port: 1433
+  user: "your_username"
+  password: "your_password"
+  database: "your_database_name"
+  schema: "dbo" # Optional, defaults to 'dbo'
+  encrypt: true # Optional, defaults to true
+```
+
+| Key        | Description                                                                                             | Required | Default |
+| ---------- | ------------------------------------------------------------------------------------------------------- | -------- | ------- |
+| `name`     | A unique identifier for this data source connection.                                                    | Yes      |         |
+| `type`     | The type of the adapter. Must be `sqlserver`.                                                           | Yes      |         |
+| `host`     | The hostname or IP address of your SQL Server instance.                                                 | Yes      |         |
+| `port`     | The port number for the connection.                                                                     | No       | `1433`  |
+| `user`     | The username for authentication.                                                                        | Yes      |         |
+| `password` | The password for authentication.                                                                        | Yes      |         |
+| `database` | The name of the database to connect to.                                                                 | Yes      |         |
+| `schema`   | The default schema to use for tables that are not fully qualified.                                      | No       | `dbo`   |
+| `encrypt`  | Whether to encrypt the connection. Recommended to keep this `true`.                                     | No       | `true`  |
+
+## Dataset Configuration
+
+When defining datasets for the `SemanticModel`, use the `type: "sqlserver"` and provide the table name as the `identifier`.
+
+```python
+from intugle import SemanticModel
+
+datasets = {
+    "customers": {
+        "type": "sqlserver",
+        "identifier": "Customers" # The name of the table in SQL Server
+    },
+    "orders": {
+        "type": "sqlserver",
+        "identifier": "Orders"
+    },
+    # ... other datasets
+}
+
+# Build the semantic model
+sm = SemanticModel(datasets, domain="E-commerce")
+sm.build()
+```

pyproject.toml

@@ -61,13 +61,17 @@ snowflake = [
 ]
 databricks = [
     "databricks-sql-connector>=4.1.3",
-    "pyspark>=3.5.0",
+    "pyspark>=3.5.0,<4.0.0",
     "sqlglot>=27.20.0",
 ]
 postgres = [
     "asyncpg>=0.30.0",
     "sqlglot>=27.20.0",
 ]
+sqlserver = [
+    "mssql-python>=0.13.1",
+    "sqlglot>=27.20.0",
+]
 
 streamlit = [
     "streamlit==1.50.0",
@@ -101,8 +105,9 @@ dev = [
     "asyncpg>=0.30.0",
     "databricks-sql-connector>=4.1.3",
     "ipykernel>=6.30.1",
+    "mssql-python>=0.13.1",
     "pysonar>=1.2.0.2419",
-    "pyspark>=4.0.1",
+    "pyspark>=3.5.0,<4.0.0",
     "pytest>=8.4.1",
     "pytest-asyncio>=1.1.0",
     "pytest-cov>=6.2.1",

src/intugle/adapters/factory.py

@@ -24,6 +24,7 @@ def import_module(name: str) -> ModuleInterface:
     "intugle.adapters.types.snowflake.snowflake",
     "intugle.adapters.types.databricks.databricks",
     "intugle.adapters.types.postgres.postgres",
+    "intugle.adapters.types.sqlserver.sqlserver",
 ]
 
 

src/intugle/adapters/models.py

@@ -23,8 +23,9 @@ def get_dataset_data_type() -> type:
     from intugle.adapters.types.duckdb.models import DuckdbConfig
     from intugle.adapters.types.postgres.models import PostgresConfig
     from intugle.adapters.types.snowflake.models import SnowflakeConfig
+    from intugle.adapters.types.sqlserver.models import SQLServerConfig
 
-    DataSetData = pd.DataFrame | DuckdbConfig | SnowflakeConfig | DatabricksConfig | PostgresConfig
+    DataSetData = pd.DataFrame | DuckdbConfig | SnowflakeConfig | DatabricksConfig | PostgresConfig | SQLServerConfig
 else:
     # At runtime, this is dynamically determined
     DataSetData = Any

src/intugle/adapters/types/sqlserver/__init__.py

@@ -0,0 +1,18 @@
+from typing import Literal, Optional
+
+from intugle.common.schema import SchemaBase
+
+
+class SQLServerConnectionConfig(SchemaBase):
+    user: str
+    password: str
+    host: str
+    port: int = 1433
+    database: str
+    schema: str = "dbo"
+    encrypt: bool = True
+
+
+class SQLServerConfig(SchemaBase):
+    identifier: str
+    type: Literal["sqlserver"] = "sqlserver"