Configuration

The configuration of a Kùzu database or a connection to the database can be changed through a standalone CALL statement, described in this section. Different from the CALL clause, this statement of changing configuration cannot be used with other query clauses, such as RETURN.

Connection configuration

Option	Description	Default
THREADS	number of threads used by execution	system maximum threads
TIMEOUT	timeout of query execution in ms	N/A
VAR_LENGTH_EXTEND_MAX_DEPTH	maximum depth of recursive extend	30
ENABLE_SEMI_MASK	enables the semi mask optimization	true
HOME_DIRECTORY	system home directory	user home directory
FILE_SEARCH_PATH	file search path	N/A
PROGRESS_BAR	enable progress bar in CLI	false
PROGRESS_BAR_TIME	show progress bar after time in ms	1000
CHECKPOINT_THRESHOLD	the WAL size threshold in bytes at which to automatically trigger a checkpoint	16777216 (16MB)
WARNING_LIMIT	maximum number of warnings that can be stored in a single connection.	8192
SPILL_TO_DISK	spill data disk if there is not enough memory when running `COPY FROM (cannot be set to TRUE under in-memory or read-only mode)	true

Database configuration

Option	Description	Default
CHECKPOINT_THRESHOLD	the WAL size threshold at which to automatically trigger a checkpoint	16777216

Configure execution threads

CALL THREADS=5;

Configure query timeout

CALL TIMEOUT=3000;

Configure maximum depth of recursive extend

CALL var_length_extend_max_depth=10;

Configure semi-mask optimization

CALL enable_semi_mask=false;

Configure home directory

CALL home_directory='/kuzu';

Configure file search path

CALL file_search_path='/kuzu/file';

Configure progress bar

CALL progress_bar=true;

Configure checkpoint threshold

CALL checkpoint_threshold=16777216;

Configure warning limit

CALL warning_limit=1024;

Configure Spill to disk temporary file

CALL spill_to_disk=true;
# Disables spilling to disk
CALL spill_to_disk=false;