Instant SQL for results as you type in DuckDB UI

Young bobby tables at it again

The blog specifically says that they're getting the SQL AST so presumably they would not execute something like a DELETE.

That's actually not a bad idea, to have LLM autocomplete when you write queries, especially if you first add a comment at the top saying what you want to achieve:

// Select all orders for users registered in last year, and compute average earnings per user

SELECT ...

a fun function in duckdb (which I think they're using here) is `json_serialize_sql`. It returns a JSON AST of the SQL

    SELECT json_serialize_sql('SELECT 2');



    [
        {
            "json_serialize_sql('SELECT 2')": {
                "error": false,
                "statements": [
                    {
                        "node": {
                            "type": "SELECT_NODE",
                            "modifiers": [],
                            "cte_map": {
                                "map": []
                            },
                            "select_list": [
                                {
                                    "class": "CONSTANT",
                                    "type": "VALUE_CONSTANT",
                                    "alias": "",
                                    "query_location": 7,
                                    "value": {
                                        "type": {
                                            "id": "INTEGER",
                                            "type_info": null
                                        },
                                        "is_null": false,
                                        "value": 2
                                    }
                                }
                            ],
                            "from_table": {
                                "type": "EMPTY",
                                "alias": "",
                                "sample": null,
                                "query_location": 18446744073709551615
                            },
                            "where_clause": null,
                            "group_expressions": [],
                            "group_sets": [],
                            "aggregate_handling": "STANDARD_HANDLING",
                            "having": null,
                            "sample": null,
                            "qualify": null
                        },
                        "named_param_map": []
                    }
                ]
            }
        }
    ]