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## Improvement

**Relative Date Filters in Query Builder**

Date filters in the Query Builder now support **relative time ranges** (in addition to selecting specific calendar dates). This is especially useful for **scheduled dataset exports**, so each run automatically targets the most relevant time window.

**Supported relative options include:**
- Last N Days
- Last Week
- Last Month
- Last Quarter
- Last Year

The backend resolves relative date selections into concrete dates at execution time, ensuring scheduled exports stay up-to-date.