Method toASTImpl

src/Analyzer/ArrayJoinNode.cpp:55–94

}

ASTPtr ArrayJoinNode::toASTImpl(const ConvertToASTOptions & options) const
{
    auto array_join_ast = make_intrusive<ASTArrayJoin>();
    array_join_ast->kind = is_left ? ASTArrayJoin::Kind::Left : ASTArrayJoin::Kind::Inner;

    auto array_join_expressions_ast = make_intrusive<ASTExpressionList>();
    const auto & array_join_expressions = getJoinExpressions().getNodes();

    for (const auto & array_join_expression : array_join_expressions)
    {
        ASTPtr array_join_expression_ast;

        auto * column_node = array_join_expression->as<ColumnNode>();
        if (column_node && column_node->getExpression())
        {
            array_join_expression_ast = column_node->getExpression()->toAST(options);
        }
        else
            array_join_expression_ast = array_join_expression->toAST(options);

        /// We must check that it has an alias (not empty) as otherwise we try to set it and not all IAST classes support it (LOGICAL_ERROR)
        if (array_join_expression->hasAlias())
            array_join_expression_ast->setAlias(array_join_expression->getAlias());
        array_join_expressions_ast->children.push_back(std::move(array_join_expression_ast));
    }

    array_join_ast->children.push_back(std::move(array_join_expressions_ast));
    array_join_ast->expression_list = array_join_ast->children.back();

    ASTPtr tables_in_select_query_ast = make_intrusive<ASTTablesInSelectQuery>();
    addTableExpressionOrJoinIntoTablesInSelectQuery(tables_in_select_query_ast, children[table_expression_child_index], options);

    auto array_join_query_element_ast = make_intrusive<ASTTablesInSelectQueryElement>();
    array_join_query_element_ast->children.push_back(std::move(array_join_ast));
    array_join_query_element_ast->array_join = array_join_query_element_ast->children.back();

    tables_in_select_query_ast->children.push_back(std::move(array_join_query_element_ast));

    return tables_in_select_query_ast;
}

}