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- Full-Text Search Extension 14692
- Full-Text Search is an extension to DuckDB that allows for search through strings, similar to SQLite's FTS5 extension . Installing and Loading The fts extension will be transparently autoloaded on first use from the official extension repos
...'turkish' , or 'none' if no stemming is to be used. Example Usage Create a table and fill it with text data: CREATE TABLE documents ( document_identifier VARCHAR, text_content VARCHAR, author VARCHAR, doc_version INTEGER ); INSERT INTO documents VALUES (...ens Kuiper', 2 ); Build the index, and make both the text_content and author columns searchable. PRAGMA create_fts_index( 'documents', 'document_identifier', 'text_content', 'author' ); Search the author field index for documents that are authored by Muhl...eisen . This retrieves doc1 : SELECT document_identifier, text_content, score FROM ( SELECT *, fts_main_documents.match_bm25( document_identifier, 'Muhleisen', fields := 'author' ) AS score FROM documents ) sq WHERE score IS NOT NULL AN... - https://man.mtool.work/duckdb/2.0/core_extensions/full_text_search.html
- Tableau – A Data Visualization Tool 9079
- Tableau is a popular commercial data visualization tool. In addition to a large number of built-in connectors, it also provides generic database connectivity via ODBC and JDBC connectors. Tableau has two main versions: Desktop and Online (S
...hanges apply The last command will restart the server with the new settings. macOS Copy the Taco file to the /Users/[User]/Documents/My Tableau Repository/Connectors folder. Then launch Tableau Desktop from the Terminal with the command line argument to d...he application name in the script when you get upgrades. Windows Desktop Copy the Taco file to the C:\Users\[Windows User]\Documents\My Tableau Repository\Connectors directory. Then launch Tableau Desktop from a shell with the -DDisableVerifyConnectorPlug... - https://man.mtool.work/duckdb/2.0/guides/data_viewers/tableau.html
- Iceberg Extension 8938
- The iceberg extension implements support for the Apache Iceberg open table format . There are two ways to work with Iceberg in DuckDB: Individual tables are read directly from storage, by pointing at a table's metadata. This requires no cat
...ee also: Writing to Iceberg describes the supported write operations, partitioning and schema evolution. Iceberg Functions documents the functions provided by the extension. Iceberg Options documents the scan parameters, ATTACH options, secret options and... - https://man.mtool.work/duckdb/2.0/core_extensions/iceberg/overview.html
- Creating JSON 8692
- JSON Creation Functions The following functions are used to create JSON. Function Description to_json(any) Create JSON from a value of any type. Our LIST is converted to a JSON array, and our STRUCT and MAP are converted to a JSON object. j
...key , value pairs in the argument list. Requires an even number of arguments. json_merge_patch(json, json) Merge two JSON documents together. Examples: SELECT to_json('duck'); "duck" SELECT to_json([1, 2, 3]); [1,2,3] SELECT to_json({duck : 42}); {"duck"... - https://man.mtool.work/duckdb/2.0/data/json/creating_json.html
- ODBC Configuration 8569
- This page documents the files using the ODBC configuration, odbc.ini and odbcinst.ini . These are either placed in the home directory as dotfiles ( .odbc.ini and .odbcinst.ini , respectively) or in a system directory. For platform-specific
... - https://man.mtool.work/duckdb/2.0/clients/odbc/configuration.html
- JSON Processing Functions 8569
- JSON Extraction Functions There are two extraction functions, which have their respective operators. The operators can only be used if the string is stored as the JSON logical type. These functions support the same two location notations as
...Patch at a Time” blog post . Function Description json_deep_merge(json, patch[, ...]) Recursively merge one or more patch documents into json , applied left to right. Works like json_merge_patch , except that a JSON null value in a patch keeps the origin...nested inside arrays. null array elements are kept and scalar values are returned unchanged. Compute the patch between two documents: SELECT json_merge_patch_diff('{"a": 1, "b": 2, "c": 3}', '{"a": 1, "b": 99, "d": 4}'); {"c":null,"b":99,"d":4} Applying t...deep_merge('{"a": 1}', '{"a": null}', '{"a": 2}'); {"a":2} Normalize the key order of a document, e.g., to compare or hash documents that only differ in key order: SELECT json_normalize('{"c": {"b": {"z": 1, "a": 2}, "a": 3}, "a": 4}'); {"a":4,"c":{"a":3,... - https://man.mtool.work/duckdb/2.0/data/json/json_functions.html
- Non-Deterministic Behavior 8305
- Several operators in DuckDB exhibit non-deterministic behavior. Most notably, SQL uses set semantics, which allows results to be returned in a different order. DuckDB exploits this to improve performance, particularly when performing multi-
...as using different compilers, operating systems and hardware architectures, can also cause changes in ordering. This page documents the cases where non-determinism is an expected behavior . If you would like to make your queries deterministic, see the “W... - https://man.mtool.work/duckdb/2.0/operations_manual/non-deterministic_behavior.h...
- Legacy Authentication Scheme for S3 API 8181
- Prior to version 0.10.0, DuckDB did not have a Secrets manager . Hence, the configuration of and authentication to S3 endpoints was handled via variables. This page documents the legacy authentication scheme for the S3 API. Warning This pag
... - https://man.mtool.work/duckdb/2.0/core_extensions/httpfs/s3api_legacy_authentica...
- Importing Duckbox Tables 8181
- The scripts provided in this page work on Linux, macOS, and WSL. By default, the DuckDB CLI client renders query results in the duckbox format , which uses rich, ASCII-art inspired tables to show data. These tables are often shared verbatim
...in other documents. For example, take the table used to demonstrate new CSV features in the DuckDB 1.2.0 release blog post : ┌─────────┬─────... - https://man.mtool.work/duckdb/2.0/guides/snippets/importing_duckbox_tables.html
- Deploy 7918
- Overview Deploying DuckDB-Wasm means serving its components so that the browser can fetch and instantiate them. This page describes each component a deployment needs to serve, how the worker and WebAssembly variants relate, how extensions a
...er-Policy: require-corp Cross-Origin-Opener-Policy: same-origin These headers isolate the document from other cross-origin documents and require any cross-origin resource it embeds to explicitly opt in. Because many third-party endpoints do not yet send t... - https://man.mtool.work/duckdb/2.0/clients/wasm/deploying_duckdb_wasm.html
DuckDB 2.0 Documentation / man.mtool.work