## Preflight checks for PrestoSQL

URL: https://docs.atlan.com/apps/connectors/database/prestosql/references/preflight-checks-for-prestosql

> Before [running the PrestoSQL crawler](/apps/connectors/database/prestosql/how-tos/crawl-prestosql), you can run [preflight checks](/product/connections/.

Before [running the PrestoSQL crawler](https://docs.atlan.com/llms/connectors/prestosql/crawl-prestosql/llms.txt), you can run [preflight checks](https://docs.atlan.com/llms/catalog/connector-capabilities/what-are-preflight-checks/llms.txt) to perform the necessary technical validations. The following preflight check will be completed:

## Catalogs and schemas check

✅ `Check successful`

❌ `Check failed for $missingObjectName`

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