Function getWithFillFieldValue

src/Interpreters/InterpreterSelectQuery.cpp:1382–1391

static std::pair<Field, DataTypePtr> getWithFillFieldValue(const ASTPtr & node, ContextPtr context)
{
    auto field_type = evaluateConstantExpression(node, context);

    if (!isColumnedAsNumber(field_type.second))
        throw Exception(ErrorCodes::INVALID_WITH_FILL_EXPRESSION,
                        "Illegal type {} of WITH FILL expression, must be numeric type", field_type.second->getName());

    return field_type;
}

static std::pair<Field, std::optional<IntervalKind>> getWithFillValueWithIntervalKind(const ASTPtr & node, const ContextPtr & context)
{