Results of 1 - 3 of about 3 for columnNames (0.004 sec.)
- Import Data 11700
- Overview The Go client offers two ways to load data into DuckDB in bulk: the high-performance Appender for inserting rows generated in Go, and reading directly from data files such as Parquet, CSV, and JSON. Both are described below. For in
..., table) appends to all columns of the specified table. duckdb.NewTableAppender(driverConn, query, catalog, schema, table, columnNames) runs an INSERT , DELETE , UPDATE , or MERGE INTO query for each buffered batch. It infers the input types from the named...ass an empty column-name slice to use all columns. duckdb.NewQueryAppender(driverConn, query, temporaryTable, columnTypes, columnNames) also runs a query for each batch, but lets the caller specify the temporary input table's name, column types, and column...names. duckdb.NewAppenderWithColumns(driverConn, catalog, schema, table, columnNames) can also append a subset of columns, leaving other columns at their default values or NULL . It is retained mostly for ba... - https://man.mtool.work/duckdb/2.0/clients/go/data_import.html
- Node.js Client (Neo) 8984
- Installation To use the DuckDB Node.js client, visit the Node.js installation page . The latest stable version of the DuckDB Node.js (Neo) client is 2.0.0. An API for using DuckDB in Node.js . The primary package, @duckdb/node-api , is a hi
...luate lazily when rows are read. const result = await connection.stream('from range(10_000)'); Inspect Result Metadata Get column names and types: const columnNames = result.columnNames(); const columnTypes = result.columnTypes(); Read Result Data Run and r...lue": "goose" } // ] // ], // "union": [ // { "tag": "name", "value": "Frank" }, // { "tag": "age", "value": 5 } // ] // } Column names and types can also be serialized to JSON: const columnNamesAndTypes = reader.columnNamesAndTypesJson(); // { // "columnNa...Chunk(i); // ... } Get chunk data: const rows = chunk.getRows(); const rowObjects = chunk.getRowObjects(result.deduplicatedColumnNames()); const columns = chunk.getColumns(); const columnsObject = chunk.getColumnsObject(result.deduplicatedColumnNames()); Ge... - https://man.mtool.work/duckdb/2.0/clients/node_neo/overview.html
- Python Client API 7180
- Connection class duckdb. Appender Bases: object append_row ( self , * args ) → None Buffer one row, one value per column, each converted as an executemany parameter would be append_rows ( self , rows : object ) → None Buffer each row of an
...qltypes.DuckDBPyType Create a decimal type with ‘width' and ‘scale' property description Get result set attributes, mainly column names df ( self , * , date_as_object : bool = False ) → object Fetch a result as DataFrame following execute() disable_profilin...AS total”) does; the rest of the text is what the SQL holds, in parentheses on lines of its own. duckdb. star ( exclude : ColumnNames = () , rename : _Renames | None = None ) → Expression * , optionally dropping or renaming columns; exclude=”id” drops the...ckdb. description ( * , connection : _duckdb.DuckDBPyConnection | None = None ) → object Get result set attributes, mainly column names duckdb. df ( df : object = None , * , date_as_object : bool = False , connection : DuckDBPyConnection | None = None ) → A... - https://man.mtool.work/duckdb/2.0/clients/python/reference/
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