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My Workload Is Slow 12316
If you find that your workload in DuckDB is slow, we recommend performing the following checks. More detailed instructions are linked for each point. Do you have enough memory? DuckDB works best if you have 1-4 GB memory per thread . Is you ... r system maybe overcommitting memory, forcing the operating system to swap? Try lowering the amount of memory available from the default 80% of the total RAM using SET ...
https://man.mtool.work/duckdb/2.0/guides/performance/my_workload_is_slow.html
Run Queries 8617
Overview Because the Go client implements database/sql , queries run through the standard methods: Exec and ExecContext send statements that do not return rows, such as INSERT or DDL, and report the number of affected rows. Query , QueryCon ... ments to insert large amounts of data into DuckDB. See Import Data for the Appender, which is far faster for bulk inserts. Forcing a Parameter Type The client infers the DuckDB type of a bound value from its Go type. When that inference is not what you ...
https://man.mtool.work/duckdb/2.0/clients/go/querying.html
Statically Linking Extensions 8617
This page is for client and binding authors, and for anyone who embeds libduckdb in their own application. It describes how statically linking extensions changed in DuckDB 2.0 and what builders on top of DuckDB need to do. This change is in ... u do package the loader and the auto-register object into an archive, keep the registration symbol from being discarded by forcing it onto the link line: -Wl,-u,duckdb_register_static_extensions Build Options When building DuckDB or libduckdb , select t ...
https://man.mtool.work/duckdb/2.0/dev/building/linking_extensions.html
Appender 7397
Appenders are the most efficient way of loading data into DuckDB from within the C interface, and are recommended for fast data loading. The appender is much faster than using prepared statements or individual INSERT INTO statements. Append ... e appender to get the error data from. Return Value The error data. duckdb_appender_flush Flush the appender to the table, forcing the cache of the appender to be cleared. If flushing the data triggers a constraint violation or any other error, then all ...
https://man.mtool.work/duckdb/2.0/clients/c/appender.html
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