---
warning: DO NOT CHANGE THIS MANUALLY, THIS IS GENERATED BY https://github.com/duckdb/community-extensions repository, check README there
title: ldbc_data_gen
excerpt: |
  DuckDB Community Extensions
  Generate LDBC SNB BI datasets directly from DuckDB

extension:
  name: ldbc_data_gen
  description: Generate LDBC SNB BI datasets directly from DuckDB
  version: 0.1.1
  language: C++
  build: cmake
  license: MIT
  maintainers:
    - Dtenwolde

repo:
  github: Dtenwolde/ldbc-data-gen
  ref: e7d26eac0e0feb70ec37a90112607adac807e901 

docs:
  hello_world: |
    INSTALL ldbc_data_gen FROM community;
    LOAD ldbc_data_gen;

    -- Generate the LDBC SNB BI dataset as DuckDB tables.
    CALL ldbcgen(sf := 0.003, schema := 'ldbc');

    -- Inspect generated relation counts.
    FROM ldbcgen(sf := 0.003, schema := 'ldbc_counts');

    -- Generate Spark-compatible BI Parquet files.
    CALL ldbcgen(
      sf := 0.003,
      target := 'files',
      output_dir := 'out/sf0.003',
      format := 'parquet',
      overwrite := true
    );

    -- Inspect the generated schema metadata.
    FROM ldbcgen_schema(format := 'parquet')
    LIMIT 10;

    -- Run one bundled LDBC BI query against generated tables.
    PRAGMA ldbc_bi(1, schema = 'ldbc');

  extended_description: >
    The ldbc_data_gen extension generates deterministic LDBC Social Network Benchmark Business Intelligence (SNB BI) datasets directly inside DuckDB.
    It can materialize the generated graph as DuckDB tables or write Spark-compatible BI files in the composite-merged-fk layout, including the initial snapshot, inserts, and deletes. Parquet and CSV file output are supported.

    The extension also includes helpers for inspecting the generated schema, configuration values, deterministic Java-compatible random sequences, and bundled LDBC BI query execution through `PRAGMA ldbc_bi`.

    The generator is designed for reproducible benchmark data generation and local validation workflows without requiring Spark.

extension_star_count: 1
extension_star_count_pretty: 1
extension_download_count: 11497
extension_download_count_pretty: 11.5k
image: '/images/community_extensions/social_preview/preview_community_extension_ldbc_data_gen.png'
layout: community_extension_doc
---
### Compatibility Matrix

This table covers all DuckDB releases that have not reached [end-of-life](https://duckdb.org/release_calendar), including LTS releases, and shows the 2 most recent patch releases of each. Older patch releases are not listed, but the extension may be available for them as well.

<div class="extension_compatibility_table"></div>

| Platform | 1.4.4 | 1.4.5 | 1.5.5 | 1.5.6 | 2.0.0 |
| :--- | :---: | :---: | :---: | :---: | :---: |
| Linux AMD64 | ❌ | ❌ | ✅ | ✅ | ❌ |
| Linux ARM64 | ❌ | ❌ | ✅ | ✅ | ❌ |
| macOS AMD64 | ❌ | ❌ | ✅ | ✅ | ❌ |
| macOS ARM64 | ❌ | ❌ | ✅ | ✅ | ❌ |
| Windows AMD64 | ❌ | ❌ | ✅ | ✅ | ❌ |
| Windows ARM64 | ❌ | ❌ | ❌ | ❌ | ❌ |
| WebAssembly | ❌ | ❌ | ✅ | ✅ | ❌ |

### Installing and Loading
```sql
INSTALL {{ page.extension.name }} FROM community;
LOAD {{ page.extension.name }};
```

{% if page.docs.hello_world %}
### Example
```sql
{{ page.docs.hello_world }}```
{% endif %}

{% if page.docs.extended_description %}
### About {{ page.extension.name }}
{{ page.docs.extended_description }}
{% endif %}
### Added Functions

<div class="extension_functions_table"></div>

|    function_name    | function_type | description | comment | examples |
|---------------------|---------------|-------------|---------|----------|
| ldbc_bi             | pragma        | NULL        | NULL    |          |
| ldbc_bi_queries     | table         | NULL        | NULL    |          |
| ldbc_email_base     | scalar        | NULL        | NULL    |          |
| ldbc_java_random    | table         | NULL        | NULL    |          |
| ldbcgen             | table         | NULL        | NULL    |          |
| ldbcgen_config      | table         | NULL        | NULL    |          |
| ldbcgen_person_core | table         | NULL        | NULL    |          |
| ldbcgen_schema      | table         | NULL        | NULL    |          |

### Overloaded Functions

<div class="extension_functions_table"></div>

This extension does not add any function overloads.

### Added Types

<div class="extension_types_table"></div>

This extension does not add any types.

### Added Settings

<div class="extension_settings_table"></div>

This extension does not add any settings.