Documentation
Getting Started
Welcome to HireLens
Use Cases
Quick Start Guide
Platform
Dashboard
Vacancies
Companies
Ecosystem & Integrations
Analytics Studio
Studio Overview
Studio Onboarding
Node Reference
Pipeline Recipes
Tips & Troubleshooting
Market Map
Graph Overview
Graph Use Cases
Graph Navigation Guide
API
API Reference
Analytics Studio
/ Tips & Troubleshooting
Editing:
Tips & Troubleshooting
✔ Save
Cancel
Title
Section
Slug
Order
Published
# Studio Tips & Troubleshooting Get the most out of Analytics Studio and solve common issues. --- ## Keyboard Shortcuts | Key | Action | |-----|--------| | `Delete` or `Backspace` | Remove the selected node or edge | | `Escape` | Deselect everything | | Click on edge (connection line) | Select it (for deletion) | --- ## Working with Connections ### Creating a connection 1. Hover over the **output port** (right side of a node) — it highlights 2. Click and drag to the **input port** (left side of another node) 3. Release to create the connection ### Removing a connection 1. **Click directly on the connection line** (the curved edge between nodes) 2. It highlights when selected 3. Press `Delete` or `Backspace` ### Inserting a node in the middle 1. Drag a new node from the palette 2. **Drop it directly onto an existing connection line** 3. The connection is automatically split — the new node is inserted between the two existing nodes ### Re-bridging on deletion When you delete a node that is in the **middle** of a pipeline, connections are automatically re-bridged: - Before: A -> B -> C - Delete B: A -> C (automatic reconnection) --- ## Common Issues ### "No source node found" **Cause:** Your pipeline does not have a Vacancies or Companies node. **Fix:** Drag a source node onto the canvas and connect it to the rest of the pipeline. ### "Aggregate without Group By" **Cause:** You have an Aggregate node but no Group By node upstream. **Fix:** Add a Group By node between the Source/Filters and the Aggregate node. ### "Column does not exist" error **Cause:** A Sort or Chart node references a column that does not exist at that point in the pipeline. **Fix:** Click the Sort/Chart node and re-select the field from the dropdown — it only shows valid options. ### Empty chart **Cause:** Your filters are too restrictive, leaving no data. **Fix:** Relax filters (wider date range, fewer role restrictions) and re-run. ### Chart shows wrong data **Cause:** Label or value columns are misconfigured. **Fix:** Click the Chart node, then verify Label Column and Value Columns. --- ## Performance Tips - **Use date filters** — Limiting to recent data makes queries faster - **Limit results** — A Limit node of 20-50 rows keeps charts readable and queries quick - **Simpler is better** — A pipeline with 3-5 nodes runs in under a second --- ## Best Practices 1. **Name your aggregates clearly** — `avg_salary` is better than `agg1` 2. **Build incrementally** — Add one node at a time and run after each addition to verify 3. **Use templates as starting points** — Modify rather than build from zero 4. **Check the preview** — Each node shows a preview of what it does below the title 5. **Group before aggregate** — Always add Group By before Aggregate, or you will get a single-row result
New Article
Section
Title
Slug (URL)
Cancel
Create