Function extractASTOption

src/Storages/MergeTree/MergeTreeIndexText.cpp:1689–1704

}

ASTPtr extractASTOption(std::unordered_map<String, ASTPtr> & options, const String & option, bool is_required)
{
    auto it = options.find(option);

    if (it != options.end())
    {
        ASTPtr ast = it->second;
        options.erase(it);
        return ast;
    }

    if (is_required)
        throw Exception(ErrorCodes::BAD_ARGUMENTS, "Text index argument '{}' is required", option);

    return nullptr;
}

std::pair<String, ASTPtr> parseNamedArgument(const ASTFunction * ast_equal_function)
{