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Metrics 11924
DuckDB provides a set of metrics that can be used to monitor the performance and health of the database. Metrics are named ⟨group⟩.⟨metric⟩ , e.g., query.total_time or operator.timing . The set of collected metrics is controlled with the tr ... such as attaching databases, writing to the WAL and checkpointing. Name Type Unit Description storage.attach_load_storage_latency double seconds Time spent loading from storage storage.attach_replay_wal_latency double seconds Time spent replaying the W ... AL file storage.checkpoint_latency double seconds Time spent running checkpoints storage.commit_local_storage_latency double seconds Time spent committing th ... rage.total_vacuum_time double seconds Total time spent running vacuum tasks during checkpointing storage.waiting_to_attach_latency double seconds Time spent waiting to ATTACH a file storage.wal_replay_entry_count uint64 rows The total number of entries ...
https://man.mtool.work/duckdb/2.0/dev/metrics.html
S3 API Support 8036
The httpfs extension supports reading/writing/ globbing files on object storage servers using the S3 API. S3 offers a standard API to read and write to remote files (while regular http servers, predating S3, do not offer a common write API) ... atic check is performed for existing files/directories, which is currently quite conservative (and on S3 will add a bit of latency). To disable this check and force writing, an OVERWRITE_OR_IGNORE flag is added: COPY table TO 's3://⟨your-bucket⟩/partiti ...
https://man.mtool.work/duckdb/2.0/core_extensions/httpfs/s3api.html
Command Line Client 7906
Installation To use the DuckDB CLI client, visit the CLI installation page . The latest stable version of the DuckDB command line client is 2.0.0. Installation The DuckDB CLI (Command Line Interface) is a single, dependency-free executable. ... teristics: Variable execution phases (initial setup versus main processing) Network-dependent operations with inconsistent latency Queries with unpredictable branching logic Operations on remote data sources External function calls Highly skewed data di ...
https://man.mtool.work/duckdb/2.0/clients/cli/overview.html
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DuckDB 2.0 Documentation / man.mtool.work