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Warning regarding SETTINGS and FORMAT

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Igor Nikonov 2023-03-15 16:30:31 +01:00 committed by GitHub
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docs/en/sql-reference/statements/insert-into.md
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@ -91,6 +91,13 @@ INSERT INTO t FORMAT TabSeparated
You can insert data separately from the query by using the command-line client or the HTTP interface. For more information, see the section “[Interfaces](../../interfaces)”.
:::note
If you want to specify `SETTINGS` for `INSERT` query then you have to do it _before_ `FORMAT` clause since everything after `FORMAT format_name` is treated as data. For example:
```sql
INSERT INTO table SETTINGS ... FORMAT format_name data_set
```
:::
## Constraints
If table has [constraints](../../sql-reference/statements/create/table.md#constraints), their expressions will be checked for each row of inserted data. If any of those constraints is not satisfied — server will raise an exception containing constraint name and expression, the query will be stopped.