`mini\Database\VirtualDatabase::expressionContainsNull()` Method

private

Signature

private function expressionContainsNull(mini\Parsing\SQL\AST\ASTNode $node): bool

Parameters

Name	Type	Default	Description
`$node`	`mini\Parsing\SQL\AST\ASTNode`	required	Documentation missing

Returns

bool

Documentation

Check if an arithmetic expression contains NULL literal

NULL propagates through arithmetic: col + NULL, 1 * NULL, etc. are all NULL. This means any comparison with such expression is UNKNOWN → no rows match.

Source

src/Database/VirtualDatabase.php:4714-4733

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