eq method
Compares with a bound value; null produces SQL IS NULL.
Implementation
Expr<bool?> eq(T value) => value == null
? Expr.internal(
UnaryNode('IS NULL', expressionNode, postfix: true),
Codecs.boolean.nullable(),
)
: _compare(
'=',
ParameterNode(codec.encode(value), storageType: codec.sqlType),
);