> For the complete documentation index, see [llms.txt](https://docs.syntho.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.syntho.ai/configure-a-data-generation-job/configure-column-settings/ai-powered-generation/table-relationships.md).

# Limitations

When using AI synthesis, it is always required to prepare your data into a [**single entity table**](/configure-a-data-generation-job/configure-column-settings/ai-powered-generation.md#entity-tables). This gives the highest utility. You can consider preparing the data into an SQL view.

When working with multiple related tables, AI synthesis is no solution, and it's advisable to use **mock** and **mask generators,** and **calculated columns.** If cross-table logic is important, first consider reshaping the source into a single entity table or SQL view. If that is not feasible, use de-identification instead of AI synthesis.

<table><thead><tr><th width="189">Approach</th><th>Table limit</th><th data-type="checkbox">Cross-table correlations</th><th width="166" data-type="checkbox">Consistency</th><th data-type="checkbox">Capture business rules</th></tr></thead><tbody><tr><td>AI synthesize</td><td>1 feature table</td><td>false</td><td>false</td><td>false</td></tr><tr><td>Mock</td><td>Unlimited</td><td>true</td><td>true</td><td>true</td></tr><tr><td>Mask</td><td>Unlimited</td><td>true</td><td>true</td><td>true</td></tr><tr><td>Calculated columns</td><td>Unlimited</td><td>true</td><td>true</td><td>true</td></tr></tbody></table>


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