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![Solved] Error running query: Unknown MySQL server host / But test connection pass - Self Hosted Redash Support - Redash Discourse](https://aws1.discourse-cdn.com/business6/uploads/redash1/original/2X/5/5f1d98016602f5ffa5e2b1b36a048a200fe55ed1.png "Solved] Error running query: Unknown MySQL server host / But test connection pass - Self Hosted Redash Support - Redash Discourse")
Solved] Error running query: Unknown MySQL server host / But test connection pass - Self Hosted Redash Support - Redash Discourse
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![php - SQLSTATE[HY000] [2005] Unknown MySQL server host ' ' (2) in Laravel - Stack Overflow](https://i.stack.imgur.com/JnTRA.png "php - SQLSTATE[HY000] [2005] Unknown MySQL server host ' ' (2) in Laravel - Stack Overflow")
php - SQLSTATE[HY000] [2005] Unknown MySQL server host ' ' (2) in Laravel - Stack Overflow
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![Solved] Error running query: Unknown MySQL server host / But test connection pass - Self Hosted Redash Support - Redash Discourse](https://aws1.discourse-cdn.com/business6/uploads/redash1/original/2X/c/c57322071009e38370048b574b0bf10522cbc1cf.png "Solved] Error running query: Unknown MySQL server host / But test connection pass - Self Hosted Redash Support - Redash Discourse")