Results of 1 - 3 of about 3 for reclaimed (0.001 sec.)
- CHECKPOINT Statement 11738
- 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 ). Th...n. Reclaiming Space When performing a checkpoint (automatic or otherwise), the space occupied by deleted rows is partially reclaimed. Note that this does not remove all deleted rows, but rather merges row groups that have a significant amount of deletes t... - https://man.mtool.work/duckdb/2.0/sql/statements/checkpoint.html
- DELETE Statement 8910
- 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
...ithout 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. DuckDB reclaims space upon performing a CHECKPOINT . VACUUM currently does n... - https://man.mtool.work/duckdb/2.0/sql/statements/delete.html
- SELECT Statement 7217
- The SELECT statement retrieves rows from the database. Examples Select all columns from the table tbl : SELECT * FROM tbl; Select the rows from tbl : SELECT j FROM tbl WHERE i = 3; Perform an aggregate grouped by the column i : SELECT i, su
...are contiguous unsigned integers (0, 1, ...) if no rows were deleted. Deletions introduce gaps in the rowids which may be reclaimed later: CREATE OR REPLACE TABLE t AS (FROM range(10) r(i)); DELETE FROM t WHERE i % 2 = 0; SELECT rowid FROM t; rowid 1 3 5... - https://man.mtool.work/duckdb/2.0/sql/statements/select.html
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