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- Import Data 9414
- Overview DuckDB-Wasm has multiple ways to import data, depending on the format of the data. Importing happens in two steps. The data file is registered in a virtual file system using one of the register functions ( registerFileBuffer , regi
...cause a registered file is visible to every connection. The data is loaded into DuckDB using one of the insert functions ( insertArrowFromIPCStream , insertArrowTable , insertCSVFromPath , insertJSONFromPath ), which are called on a connection ( conn ). Alternatively, t...ge that DuckDB-Wasm depends on (currently ^17 ). A newer major version causes Arrow inserts such as insertArrowTable() and insertArrowFromIPCStream() to fail — often silently, leaving the target table uncreated. Check DuckDB-Wasm's apache-arrow dependency and pin your a...insert data that arrives as a raw Arrow IPC stream — for example, from a fetch() response — read each chunk and pass it to insertArrowFromIPCStream() , then write the end-of-stream (EOS) marker to signal that the table is complete: // EOS signal according to the Arrow I... - https://man.mtool.work/duckdb/2.0/clients/wasm/data_ingestion.html
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