docs: Superset 6.1 documentation catch-up — batch 5

docs/admin_docs/configuration/aws-iam.mdx

@@ -0,0 +1,162 @@
+{/*
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
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+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
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+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+*/}
+
+---
+title: AWS IAM Authentication
+sidebar_label: AWS IAM Authentication
+sidebar_position: 15
+---
+
+# AWS IAM Authentication for AWS Databases
+
+Superset supports IAM-based authentication for **Amazon Aurora** (PostgreSQL and MySQL) and **Amazon Redshift**. IAM auth eliminates the need for database passwords — Superset generates a short-lived auth token using temporary AWS credentials instead.
+
+Cross-account IAM role assumption via STS `AssumeRole` is supported, allowing a Superset deployment in one AWS account to connect to databases in a different account.
+
+## Prerequisites
+
+- Enable the `AWS_DATABASE_IAM_AUTH` feature flag in `superset_config.py`. IAM authentication is gated behind this flag; if it is disabled, connections using `aws_iam` fail with *"AWS IAM database authentication is not enabled."*
+  ```python
+  FEATURE_FLAGS = {
+      "AWS_DATABASE_IAM_AUTH": True,
+  }
+  ```
+- `boto3` must be installed in your Superset environment:
+  ```bash
+  pip install boto3
+  ```
+- The Superset server's IAM role (or static credentials) must have permission to call `sts:AssumeRole` (for cross-account) or the same-account permissions for the target service:
+  - **Aurora (RDS)**: `rds-db:connect`
+  - **Redshift provisioned**: `redshift:GetClusterCredentials`
+  - **Redshift Serverless**: `redshift-serverless:GetCredentials` and `redshift-serverless:GetWorkgroup`
+- SSL must be enabled on the Aurora / Redshift endpoint (required for IAM token auth).
+
+## Configuration
+
+IAM authentication is configured via the **encrypted_extra** field of the database connection. Access this field in the **Advanced** → **Security** section of the database connection form, under **Secure Extra**.
+
+### Aurora PostgreSQL or Aurora MySQL
+
+```json
+{
+  "aws_iam": {
+    "enabled": true,
+    "role_arn": "arn:aws:iam::222222222222:role/SupersetDatabaseAccess",
+    "external_id": "superset-prod-12345",
+    "region": "us-east-1",
+    "db_username": "superset_iam_user",
+    "session_duration": 3600
+  }
+}
+```
+
+| Field | Required | Description |
+|-------|----------|-------------|
+| `enabled` | Yes | Set to `true` to activate IAM auth |
+| `role_arn` | No | ARN of the cross-account IAM role to assume via STS. Omit for same-account auth |
+| `external_id` | No | External ID for the STS `AssumeRole` call, if required by the target role's trust policy |
+| `region` | Yes | AWS region of the database cluster |
+| `db_username` | Yes | The database username associated with the IAM identity |
+| `session_duration` | No | STS session duration in seconds (default: `3600`) |
+
+### Redshift (Serverless)
+
+```json
+{
+  "aws_iam": {
+    "enabled": true,
+    "role_arn": "arn:aws:iam::222222222222:role/SupersetRedshiftAccess",
+    "region": "us-east-1",
+    "workgroup_name": "my-workgroup",
+    "db_name": "dev"
+  }
+}
+```
+
+### Redshift (Provisioned Cluster)
+
+```json
+{
+  "aws_iam": {
+    "enabled": true,
+    "role_arn": "arn:aws:iam::222222222222:role/SupersetRedshiftAccess",
+    "region": "us-east-1",
+    "cluster_identifier": "my-cluster",
+    "db_username": "superset_iam_user",
+    "db_name": "dev"
+  }
+}
+```
+
+## Cross-Account IAM Setup
+
+To connect to a database in Account B from a Superset deployment in Account A:
+
+**1. In Account B — create a database-access role:**
+
+```json
+{
+  "Version": "2012-10-17",
+  "Statement": [
+    {
+      "Effect": "Allow",
+      "Action": ["rds-db:connect"],
+      "Resource": "arn:aws:rds-db:us-east-1:222222222222:dbuser/db-XXXXXXXXXXXX/superset_iam_user"
+    }
+  ]
+}
+```
+
+**Trust policy** (allows Account A's Superset role to assume it):
+
+```json
+{
+  "Version": "2012-10-17",
+  "Statement": [
+    {
+      "Effect": "Allow",
+      "Principal": {
+        "AWS": "arn:aws:iam::111111111111:role/SupersetInstanceRole"
+      },
+      "Action": "sts:AssumeRole",
+      "Condition": {
+        "StringEquals": {
+          "sts:ExternalId": "superset-prod-12345"
+        }
+      }
+    }
+  ]
+}
+```
+
+**2. In Account A — grant Superset's role permission to assume the Account B role:**
+
+```json
+{
+  "Effect": "Allow",
+  "Action": "sts:AssumeRole",
+  "Resource": "arn:aws:iam::222222222222:role/SupersetDatabaseAccess"
+}
+```
+
+**3. Configure the database connection in Superset** using the `role_arn` and `external_id` from the trust policy (as shown in the configuration example above).
+
+## Credential Caching
+
+STS credentials are cached in memory keyed by `(role_arn, region, external_id)` with a 10-minute TTL. This reduces the number of STS API calls when multiple queries are executed with the same connection. Tokens are refreshed automatically before expiry.

docs/admin_docs/configuration/importing-exporting-datasources.mdx

@@ -10,6 +10,10 @@ version: 1
 The superset cli allows you to import and export datasources from and to YAML. Datasources include
 databases. The data is expected to be organized in the following hierarchy:
 
+:::info
+Superset's ZIP-based import/export also covers **dashboards**, **charts**, and **saved queries**, exercised through the UI and REST API. The [Dashboard Import Overwrite Behavior](#dashboard-import-overwrite-behavior) and [UUIDs in API Responses](#uuids-in-api-responses) sections below document the behavior shared across all asset types.
+:::
+
 ```text
 ├──databases
 |  ├──database_1
@@ -75,6 +79,29 @@ The optional username flag **-u** sets the user used for the datasource import.
 superset import_datasources -p <path / filename> -u 'admin'
 ```
 
+## Dashboard Import Overwrite Behavior
+
+When importing a dashboard ZIP with the **overwrite** option enabled, any existing charts that are part of the dashboard are **replaced** rather than duplicated. This applies to:
+
+- Charts whose UUID matches a chart already present in the target instance
+- The full chart configuration (query, visualization type, columns, metrics) is replaced by the imported version
+
+If you import without the overwrite flag, existing charts with conflicting UUIDs are left unchanged and the import skips those objects. Use overwrite when you want to push a fully updated dashboard (including chart definitions) from a development or staging environment to production.
+
+## UUIDs in API Responses
+
+The REST API POST endpoints for **datasets**, **charts**, and **dashboards** include the auto-generated `uuid` field in the response body:
+
+```json
+{
+  "id": 42,
+  "uuid": "b8a8d5c3-1234-4abc-8def-0123456789ab",
+  ...
+}
+```
+
+UUIDs remain stable across import/export cycles and can be used for cross-environment workflows — for example, recording a UUID when creating a chart in development and using it to identify the matching chart after importing into production.
+
 ## Legacy Importing Datasources
 
 ### From older versions of Superset to current version

docs/admin_docs/configuration/mcp-server.mdx

@@ -501,6 +501,7 @@ All MCP settings go in `superset_config.py`. Defaults are defined in `superset/m
 | `MCP_SERVICE_URL` | `None` | Public base URL for MCP-generated links (set this when behind a reverse proxy) |
 | `MCP_DEBUG` | `False` | Enable debug logging |
 | `MCP_DEV_USERNAME` | -- | Superset username for development mode (no auth) |
+| `MCP_PARSE_REQUEST_ENABLED` | `True` | Pre-parse MCP tool inputs from JSON strings into objects. Set to `False` for clients (Claude Desktop, LangChain) that do not double-serialize arguments — this produces cleaner tool schemas for those clients |
 
 ### Authentication
 
@@ -664,6 +665,32 @@ MCP_CSRF_CONFIG = {
 
 ---
 
+## Audit Events
+
+All MCP tool calls are logged to Superset's event logger, the same system used by the web UI (viewable at **Settings → Action Log**). Each event captures:
+
+- **Action**: `mcp.<tool_name>.<phase>` (e.g., `mcp.list_databases.query`)
+- **User**: the resolved Superset username from the JWT or dev config
+- **Timestamp**: when the operation ran
+
+This means MCP activity is auditable alongside normal user activity. No additional configuration is required — logging is on by default whenever the event logger is enabled in your Superset deployment.
+
+## Tool Pagination
+
+MCP list tools (`list_datasets`, `list_charts`, `list_dashboards`, `list_databases`) use **offset pagination** via `page` (1-based) and `page_size` parameters. Responses include `page`, `page_size`, `total_count`, `total_pages`, `has_previous`, and `has_next`. To iterate through all results:
+
+```python
+# Example: fetch all charts across pages
+all_charts = []
+page = 1
+while True:
+    result = mcp.list_charts(page=page, page_size=50)
+    all_charts.extend(result["charts"])
+    if not result.get("has_next"):
+        break
+    page += 1
+```
+
 ## Security Best Practices
 
 - **Use TLS** for all production MCP endpoints -- place the server behind a reverse proxy with HTTPS

docs/docs/using-superset/creating-your-first-dashboard.mdx

@@ -63,6 +63,12 @@ by clicking the **Connect** button in the bottom right corner of the modal windo
 
 Congratulations, you've just added a new data source in Superset!
 
+### Sharing a Database Connection
+
+When adding a new database, you can share the connection with other Superset users. Shared connections appear in other users' database lists, making it easier to collaborate on the same data without requiring each user to configure the same connection separately.
+
+To share a connection, enable the **Share connection with other users** option in the **Advanced** tab of the database connection modal before saving. You can change sharing settings later by editing the database connection.
+
 ### Registering a new table
 
 Now that you’ve configured a data source, you can select specific tables (called **Datasets** in Superset)
@@ -80,6 +86,22 @@ we register the **cleaned_sales_data** table from the **examples** database.
 
 To finish, click the **Add** button in the bottom right corner. You should now see your dataset in the list of datasets.
 
+### Organizing Datasets into Folders
+
+The Datasets list view supports **folders** for organizing datasets into groups. To create and manage folders:
+
+1. In the **Datasets** list, click the **Folders** panel on the left sidebar.
+2. Click **+ New Folder** to create a top-level folder, or drag an existing folder to nest it.
+3. Drag dataset rows onto a folder to move them in, or right-click a dataset and select **Move to folder**.
+
+Folders are per-user organizational aids — they do not affect dataset access permissions or how other users see the datasets.
+
+### Uploading Files via the OS File Manager (PWA)
+
+When Superset is installed as a **Progressive Web App (PWA)** from your browser, your operating system will offer Superset as an option when opening CSV, Excel (`.xls`/`.xlsx`), and Parquet files. Double-clicking or right-clicking a supported file and selecting "Open with Superset" navigates directly to the upload workflow for that file.
+
+To install Superset as a PWA, look for the install icon in your browser's address bar (Chrome, Edge) when visiting your Superset instance over HTTPS. PWA installation requires HTTPS and a valid manifest — your admin needs to confirm the app manifest is served correctly.
+
 ### Customizing column properties
 
 Now that you've registered your dataset, you can configure column properties
@@ -234,6 +256,64 @@ For example, when running the local development build, the following will disabl
 Top Nav and remove the Filter Bar:
 `http://localhost:8088/superset/dashboard/my-dashboard/?standalone=1&show_filters=0`
 
+### AG Grid Interactive Table
+
+The **AG Grid Interactive Table** chart type is Superset's fully-featured data grid, suitable for large paginated datasets where the standard Table chart is not enough.
+
+#### Server-Side Column Filters
+
+AG Grid supports server-side column filters that query the full dataset — not just the loaded page. Filters are applied before data is sent to the browser, so results are correct even across millions of rows.
+
+**Available filter types:**
+
+| Column type | Filter options |
+|---|---|
+| Text | Contains, equals, starts with, ends with |
+| Number | Equals, not equal, less than, greater than, between |
+| Date | Before, after, between, blank |
+| Set | Select from a list of distinct values |
+
+**AND / OR logic:** Each column supports combining multiple conditions with AND or OR. Filters from different columns are always combined with AND.
+
+**Interaction with pagination:** Server-side filters run as WHERE clauses in the underlying SQL query, so pagination always operates over the already-filtered result set.
+
+#### Time Shift (Time Comparison)
+
+AG Grid Interactive Table supports **Time Shift** (time comparison), matching the behavior of the standard Table chart. In the **Advanced Analytics** → **Time Comparison** section of the chart configuration, enter a shift expression (e.g., `1 year ago`, `minus 7 days`) to add comparison columns showing values from the offset period. Dashboard-level time range overrides apply to both the base and comparison periods.
+
+### Dynamic Currency Formatting
+
+Chart metric values can display currencies dynamically rather than using a fixed currency code. To enable:
+
+1. Open the dataset editor for your dataset (**Datasets → Edit**).
+2. In the **Advanced** tab, set **Currency Code Column** to the name of a column in your dataset that contains ISO 4217 currency codes (e.g., `USD`, `EUR`, `GBP`).
+3. In the Explore chart configuration, open the metric's **Number format** section and select **Auto-detect** for currency.
+
+When Auto-detect is active, each row uses the currency code from the designated column, so a single chart can display values in multiple currencies — each formatted correctly for its currency.
+
+### ECharts Option Editor
+
+For ECharts-based chart types (line, bar, area, scatter, pie, and others), Explore includes an advanced **ECharts Option Editor** that accepts raw JSON overrides for the underlying ECharts configuration.
+
+Access it via the **Customize** tab → **ECharts Options** section at the bottom of the panel. The JSON you enter is deep-merged on top of Superset's generated ECharts config, so you can override specific options without rewriting the entire config.
+
+**Example:** override the legend position and add a custom title:
+
+```json
+{
+  "legend": { "orient": "vertical", "right": "5%", "top": "middle" },
+  "title": { "text": "My Custom Title", "left": "center" }
+}
+```
+
+:::caution
+ECharts option overrides bypass Superset's validation layer. Invalid option keys are silently ignored by ECharts. Overrides that conflict with Superset-generated options (e.g., `series`) may produce unexpected results.
+:::
+
+### Table Chart: Exporting Filtered Data
+
+When the **Search Box** is visible in a Table chart, the **Download** action exports only the rows currently visible after the search filter is applied — not the full underlying dataset. This matches the visual output and is intentional. To export the full dataset regardless of search state, use the **Download as CSV** option from the chart's three-dot menu in the dashboard or from the Explore chart toolbar before applying a search filter.
+
 :::resources
 - [Dashboard Customization](https://docs.preset.io/docs/dashboard-customization) - Advanced dashboard styling and layout options
 - [Blog: BI Dashboard Best Practices](https://preset.io/blog/bi-dashboard-best-practices/)