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- Graph Queries 13628
- DuckDB supports graph queries via the DuckPGQ community extension , which implements the SQL/PGQ syntax from the SQL:2023 standard. Warning DuckPGQ is a community extension and is still under active development. It may not be available for
...page for the supported versions. Moreover, some features may be incomplete. See the DuckPGQ website for the latest status. Graph queries allow you to find patterns and paths in connected data, such as social networks, financial transactions, or knowle...dge graphs, using a visual, intuitive syntax. Installing DuckPGQ INSTALL duckpgq FROM community; LOAD duckpgq; Starting with DuckDB...nd you have to opt in to an extension's grammar explicitly. To enable the SQL/PGQ syntax of DuckPGQ (e.g., CREATE PROPERTY GRAPH and GRAPH_TABLE ), run: SET active_grammar_extensions = ['duckpgq']; Creating a Property Graph A property graph consists o... - https://man.mtool.work/duckdb/2.0/guides/sql_features/graph_queries.html
- Profiling 9561
- Profiling is essential to help understand why certain queries exhibit specific performance characteristics. DuckDB contains several built-in features to enable query profiling, which this page covers. For a high-level example of using EXPLA
...e FORMAT Option The EXPLAIN [ANALYZE] statement allows exporting to several formats: text – default ASCII-art style output graphviz – produces a DOT output, which can be rendered with Graphviz html – produces an HTML output, which can be rendered with...treeflex json – produces a JSON output mermaid – produces a Mermaid flowchart web – opens the query graph in a web browser (command line client only) To specify a format, use the FORMAT tag: EXPLAIN (FORMAT html) SELECT 42 AS x;...As of DuckDB 2.0, the web format is available in the command line client . EXPLAIN ANALYZE (FORMAT WEB) renders the query graph and opens it in a web browser, and the .web dot command does the same for the previous query. Both are disabled in safe mo... - https://man.mtool.work/duckdb/2.0/dev/profiling.html
- WITH Clause 8711
- The WITH clause allows you to specify common table expressions (CTEs). Regular (non-recursive) common-table-expressions are essentially views that are limited in scope to a particular query. CTEs can reference each other and can be nested.
...tag.subclassof = tag_hierarchy.id ) SELECT path FROM tag_hierarchy WHERE source = 'Oasis'; path [Oasis, Rock, Music, Art] Graph Traversal The WITH RECURSIVE clause can be used to express graph traversal on arbitrary graphs. However, if the graph has...h with a new edge, check whether its endpoint has been visited before (see the example later). Take the following directed graph from the LDBC Graphalytics benchmark : CREATE TABLE edge (node1id INTEGER, node2id INTEGER); INSERT INTO edge VALUES (1, 3...), (2, 10), (3, 1), (3, 5), (3, 8), (3, 10), (5, 3), (5, 4), (5, 8), (6, 3), (6, 4), (7, 4), (8, 1), (9, 4); Note that the graph contains directed cycles, e.g., between nodes 1, 5 and 8. Enumerate All Paths from a Node The following query returns all... - https://man.mtool.work/duckdb/2.0/sql/query_syntax/with.html
- Vector Similarity Search Extension 8133
- The vss extension is an experimental extension for DuckDB that adds indexing support to accelerate vector similarity search queries using DuckDB's new fixed-size ARRAY type. See the announcement blog post and the “What's New in the Vector S
...l also increase the time it takes to perform a search. M 16 The maximum number of neighbors to keep for each vertex in the graph. A higher value will result in a more accurate index, but will also increase the time it takes to build the index. M0 2 *...M The base connectivity, or the number of neighbors to keep for each vertex in the zero-th level of the graph. A higher value will result in a more accurate index, but will also increase the time it takes to build the index. Additio... - https://man.mtool.work/duckdb/2.0/core_extensions/vss.html
- CLI Charting with YouPlot 8097
- DuckDB can be used with CLI graphing tools to quickly pipe input to stdout to graph your data in one line. YouPlot is a Ruby-based CLI tool for drawing visually pleasing plots on the terminal. It can accept input from other programs by pipi
... - https://man.mtool.work/duckdb/2.0/guides/data_viewers/youplot.html
- Guides 8097
- The guides section contains compact how-to guides that are focused on achieving a single goal. For API references and examples, see the rest of the documentation. Note that there are many tools using DuckDB, which are not covered in the off
...Arrow How to stream DuckDB query results to PyTorch via Apache Arrow SQL Features Friendly SQL As-of join Full-text search Graph queries query and query_table functions Merge statement for SCD Type 2 Timestamp issues SQL Editors and IDEs How to set up... - https://man.mtool.work/duckdb/2.0/guides/overview.html
- marimo Notebooks 8097
- marimo is an open-source reactive notebook for Python and SQL that's tightly integrated with DuckDB's Python client, letting you mix and match Python and SQL in a single git-versionable notebook. Unlike traditional notebooks, when you run a
...this means your SQL queries can depend on the values of UI elements or other Python values, all part of marimo's dataflow graph. Warning Heads up! If you have user-generated content going into the SQL queries, be sure to sanitize your inputs to preve... - https://man.mtool.work/duckdb/2.0/guides/python/marimo.html
- Dot Commands 7916
- Dot commands are available in the DuckDB CLI client. To use one of these commands, begin the line with a period ( . ) immediately followed by the name of the command you wish to execute. Additional arguments to the command are entered, spac
...argument . CALL is prepended to COMMAND . Default: CALL start_ui() .version Show the DuckDB version .web Render the query graph of the previous query and open it in a web browser. Equivalent to EXPLAIN ANALYZE (FORMAT WEB) . Disabled in safe mode .wi... - https://man.mtool.work/duckdb/2.0/clients/cli/dot_commands.html
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