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- Analyzing a Git Repository 13167
- You can use DuckDB to analyze Git logs using the output of the git log command . Exporting the Git Log We start by picking a character that doesn't occur in any part of the commit log (author names, messages, etc). Since version v1.2.0, Duc
...───┼─────────────┤ │ ci │ 828 │ │ python │ 666 │ │ cli │ 49 │ └─────────┴─────────────┘ Out of these three topics, commits related to continuous integration dominate the log! We can also do a more exploratory analysis by looking at all words in the comm...rows │ └──────────────────┘ As expected, there are many Git terms ( merge , branch , pull , etc.), followed by terminology related to development ( fix , test / tests , issue , format ). We also see the account names of some developers ( mytherin , hawk...merging pull requests (e.g., ”Merge pull request #13776 from Mytherin/expressiondepth” ). Finally, we also see some DuckDB-related terms such as duckdb (shocking!) and function . Visualizing the Number of Commits Let's visualize the number of commits ea... - https://man.mtool.work/duckdb/2.0/guides/snippets/analyze_git_repository.html
- Crashes 11424
- DuckDB is thoroughly tested via an extensive test suite. However, bugs can still occur and these can sometimes lead to crashes. This page contains practical information on how to troubleshoot DuckDB crashes. Types of Crashes There are a few
...reported the bug that causes the crash. Please search in the GitHub issue tracker for the error message to see potentially related issues. DuckDB has a large community and there may be some suggestions for a workaround. Disabling the Query Optimizer Som...plain SQL queries with the DuckDB CLI client . If you cannot reproduce the issue in the command line client, it is likely related to the client library. Different Hardware Setup According to our experience, several crashes occur due to faulty hardware... - https://man.mtool.work/duckdb/2.0/guides/troubleshooting/crashes.html
- ADBC Client 10112
- Installation To use the DuckDB ADBC client, download the libduckdb archive for your platform and follow the instructions below . For Python, install the duckdb package instead, as described in the Python section . The latest stable version
...tions. (AdbcConnection*, AdbcError*) AdbcConnectionRollback(&adbc_connection, &adbc_error) Statement Statements hold state related to query execution. They represent both one-off queries and prepared statements. They can be reused; however, doing so wil...ar*, AdbcError*) StatementSetOption(&adbc_statement, ADBC_INGEST_OPTION_TARGET_TABLE, "TABLE_NAME", &adbc_error) Functions related to query execution: Function name Description Arguments Example StatementSetSqlQuery Set the SQL query to execute. The que...t to be executed multiple times. (AdbcStatement*, AdbcError*) AdbcStatementPrepare(&adbc_statement, &adbc_error) Functions related to binding, used for bulk insertion or in prepared statements. Function name Description Arguments Example StatementBindSt... - https://man.mtool.work/duckdb/2.0/clients/adbc.html
- CHECKPOINT Statement 10112
- The CHECKPOINT statement synchronizes data in the write-ahead log (WAL) to the database data file. Examples Synchronize data in the default database: CHECKPOINT; Synchronize data in the specified database: CHECKPOINT file_db; Synchronize da
...int operation. In DuckDB versions before v1.4, FORCE CHECKPOINT instead aborted any in-progress transactions. Also see the related PRAGMA option for further behavior modification. Reclaiming Space When performing a checkpoint (automatic or otherwise), t... - https://man.mtool.work/duckdb/2.0/sql/statements/checkpoint.html
- Core Extensions 9680
- List of Core Extensions Name Description Maintainer Support tier Aliases autocomplete Autocompletion for CLI client DuckDB team avro Avro files reading DuckDB team aws AWS S3 functionality DuckDB team azure Filesystem abstraction for Azure
...tp, https, s3 iceberg Apache Iceberg table format DuckDB team icu Time zones, calendars and collations DuckDB team inet IP-related data types and functions DuckDB team json JSON operations DuckDB team lance Lance tables read/write Third party legacy_par... - https://man.mtool.work/duckdb/2.0/core_extensions/overview.html
- TPC-DS Extension 9680
- New In DuckDB 2.0, the dsdgen data generator was updated to match the TPC-DS version 4 tools. As a result, the generated data differs slightly from the data generated by DuckDB v1.x. See the related PR for more details. The tpcds extension
... - https://man.mtool.work/duckdb/2.0/core_extensions/tpcds.html
- Securing DuckDB 9680
- DuckDB is a powerful analytical database engine. It can read and write files, access the network, load extensions, and use system resources. Like any powerful tool, these capabilities require appropriate configuration when working with sens
...itive data or in shared environments. This page documents DuckDB's security model and security-related settings. The right configuration depends on your use case, environment, and threat model. If you plan to embed DuckDB in...rror: Cannot access file "test.csv" - file system operations are disabled by configuration Locking Configurations Security-related configuration settings generally lock themselves for safety reasons. For example, while we can disable community extension... - https://man.mtool.work/duckdb/2.0/operations_manual/securing_duckdb/overview.htm...
- macOS 8800
- Prerequisites Install Xcode and Homebrew . Then, install the required packages with: brew install git cmake ninja Building DuckDB Clone and build DuckDB as follows. git clone https://github.com/duckdb/duckdb cd duckdb GEN=ninja make Once th
...ror: 'string' file not found 4 | #include <string> Solution: Users report that reinstalling Xcode fixed their problem. See related discussions on the DuckDB GitHub issues and on Stack Overflow . Warning Attempting to reinstall your Xcode suite may impac... - https://man.mtool.work/duckdb/2.0/dev/building/macos.html
- Environment 8369
- The environment where DuckDB is run has an obvious impact on performance. This page focuses on the effects of the hardware configuration and the operating system used. Hardware Configuration CPU DuckDB's officially supported architectures a
...d fast disks, preferably SSD or NVMe with a fast connection. With these in mind, here are two common architectures and the related considerations when you are using DuckDB's native database format : Block storage in the cloud. DuckDB runs well on networ... - https://man.mtool.work/duckdb/2.0/guides/performance/environment.html
- Securing Extensions 8369
- DuckDB has a powerful extension mechanism, which has the same privileges as the user running DuckDB's (parent) process. This introduces security considerations. Therefore, we recommend reviewing the configuration options listed on this page
...nsions = true at startup (e.g., duckdb -unsigned in the CLI). It cannot be changed while the database is running. Security-related configuration settings lock themselves , i.e., it is only possible to restrict capabilities in the current process. For ex... - https://man.mtool.work/duckdb/2.0/operations_manual/securing_duckdb/securing_ext...
DuckDB 2.0 Documentation / man.mtool.work