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More upgrade documentation for OraclePlatform::getSubstringExpression() #5978

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Mar 28, 2023
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More upgrade documentation for OraclePlatform::getSubstringExpression() #5978

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2 changes: 2 additions & 0 deletions UPGRADE.md
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Expand Up @@ -808,6 +808,8 @@ The default value of `$start` is now `null`, not `false`.

The platform abstraction allows building arbitrary SQL expressions, so even if the arguments represent numeric literals, they should be passed as a string.

Note that `OraclePlatform::getSubstringExpression()` will no longer automatically format the values of the `$start` and `$length` parameters as integers. The caller of the method is responsible for the validity of the SQL expressions.

## BC BREAK The type of `$char` in `AbstractPlatform::getTrimExpression()` changed from `string|false` to `?string`

The default value of `$char` is now `null`, not `false`. Additionally, the method will throw an `InvalidArgumentException` in an invalid value of `$mode` is passed.
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