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Fix #18499: When using yii\db\Query::all() and yii\db\Query::$indexBy, the yii\db\Query::$indexBy is auto inserted into yii\db\Query::$select - the same as in yii\db\Query::column()

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Co-authored-by: Bizley <pawel@positive.codes>
Co-authored-by: Alexander Makarov <sam@rmcreative.ru>
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Ondřej Vašíček
2021-02-23 16:44:39 +01:00
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docs/guide/db-query-builder.md
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@ -716,6 +716,8 @@ $query = (new \yii\db\Query())
->all();
```
The column name passed into [[yii\db\Query::indexBy()|indexBy()]] method has to be a part of the `SELECT` fragment of a SQL statement. If [[yii\db\Query::select()|select()]] is not used, all columns are selected and therefore the condition is met. If [[yii\db\Query::select()|select()]] is used with an array in its parameter, Yii handles adding that required SQL fragment for you. This applies when using [[yii\db\Query::indexBy()|indexBy()]] with [[yii\db\Query::all()|all()]] or [[yii\db\Query::column()|column()]]. In other cases, like the following example with an anonymous function, is up to users themselves to take care of it.
To index by expression values, pass an anonymous function to the [[yii\db\Query::indexBy()|indexBy()]] method:
```php