Results of 1 - 4 of about 4 for reclaim (0.001 sec.)
- Reclaiming Space 12426
- DuckDB uses a single-file format, which has some inherent limitations w.r.t. reclaiming disk space. CHECKPOINT To reclaim space after deleting rows, use the CHECKPOINT statement . VACUUM The VACUUM statement does not trigger vacuuming delet
...es and hence does not reclaim space. Compacting a Database by Copying To compact the database, you can create a fresh copy of the database using the COP... - https://man.mtool.work/duckdb/2.0/operations_manual/footprint_of_duckdb/reclaimi...
- DELETE Statement 8469
- The DELETE statement removes rows from the table identified by the table-name. If the WHERE clause is not present, all records in the table are deleted. If a WHERE clause is supplied, then only those rows for which the WHERE clause results
...ent removes all rows from a table, acting as an alias for DELETE FROM without a WHERE clause: TRUNCATE tbl; Limitations on Reclaiming Memory and Disk Space Running DELETE does not mean space is reclaimed. In general, rows are only marked as deleted. Duc...kDB reclaims space upon performing a CHECKPOINT . VACUUM currently does not reclaim space.... - https://man.mtool.work/duckdb/2.0/sql/statements/delete.html
- CHECKPOINT Statement 8025
- 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
...S memory_compressed (COMPRESS); USE memory_compressed; Checkpointing triggers vacuuming deleted rows, allowing space to be reclaimed after deletes/truncation. Syntax Checkpoint operations happen automatically based on the WAL size (see Configuration )....KPOINT 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), the space occupied by deleted rows is partially reclaimed....ting also applies to in-memory databases (see Checkpointing In-Memory Tables ), where it likewise vacuums deleted rows and reclaims space. Warning The VACUUM statement does not trigger vacuuming deletes and hence does not reclaim space.... - https://man.mtool.work/duckdb/2.0/sql/statements/checkpoint.html
- VACUUM Statement 8025
- The VACUUM statement only has basic support in DuckDB and is mostly provided for PostgreSQL-compatibility. Some variants of it, such as when calling for a given column, recompute the distinct statistics (the number of distinct entities) if
...efault, 0 , disables the fallback). It can only be set before the database is started or per database as an ATTACH option. Reclaiming Space The VACUUM statement does not reclaim space. For instructions on reclaiming space, refer to the “Reclaiming space... - https://man.mtool.work/duckdb/2.0/sql/statements/vacuum.html
PREV
1
NEXT
DuckDB 2.0 Documentation / man.mtool.work