datalevin.constants — datalevin 0.9.3

System vars. Some can be dynamically rebound to change system behavior.

*compress-sample-size* clj

The number of samples considered when build the key compression dictionary is 65536

*data-serializable-classes* clj

set of additional serializable classes, e.g. #{"my.package.*"}

*en-punctuations-set* clj

The set of English punctuation characters, a Java HashSet. Used in English analyzer.

*en-stop-words-set* clj

The set of English stop words, a Java HashSet, contains the same words as that of Lucene. Used in English analyzer.

*init-db-size* clj

Initial db file size is 100 megabytes, automatically grown

*init-val-size* clj

Initial maximal value size is 16384 bytes, automatically grown

*max-dbs* clj

Maximum number of sub-databases allowed in a db file

*max-readers* clj

Maximum number of readers allowed for a db file

+max-key-size+ clj

Maximum LMDB key size is 511 bytes

+max-term-length+ clj

The full text search engine ignores exceedingly long strings. The maximal allowed term length is 128 characters

+tuple-max+ clj

Maximum length of a tuple is 255 bytes

ave clj

dbi name for Datalog AVE index is `datalevin/ave

default-connection-pool-size clj

The default client connection pool size is 3

default-connection-timeout clj

The default connection timeout is 60000ms (1 minute)

default-dbi-flags clj

Default LMDB dbi flag is [:create]. See http://www.lmdb.tech/doc/group__mdb__dbi__open.html for full list of flags

default-display clj

default search function :display option value is :refs

default-doc-filter clj

default-domain clj

default-env-flags clj

Default LMDB env flag is [:nordahead :notls :writemap :nometasync]. See http://www.lmdb.tech/doc/group__mdb__env.html for full list of flags.

Passed as :flags option value to open-kv function.

default-idle-timeout clj

The server session default idle timeout is 172800000ms (48 hours)

default-password clj

The server default password is datalevin

default-port clj

The server default port number is 8898

default-proximity-expansion clj

default search function :proximity-expansion option value is 2

default-proximity-max-dist clj

default search function :proximity-max-dist option value is 45

default-put-flags clj

Default LMDB put flag is []. See http://www.lmdb.tech/doc/group__mdb__put.html for full list of flags

default-spill-root clj

Default root directory of spilled files is platform dependent. the same as the value of Java property java.io.tmpdir

default-spill-threshold clj

Default percentage of heap memory (Xmx) is 95, over which spill-to-disk will be triggered

default-top clj

default search function :top option value is 10

default-username clj

The server default username is datalevin

docs clj

dbi name suffix for search engine documents index is docs

eav clj

dbi name for Datalog EAV index is `datalevin/eav

giants clj

dbi name for Datalog large datoms is `datalevin/giants

kv-info clj

dbi name for kv store system information is `datalevin/kv-info

magic-cost-hash clj

Cost associated with hash join

magic-cost-pred clj

Cost associated with running predicate during scan

magic-number-many clj

Magic number for many cardinality when estimating size

magic-number-pred clj

Magic number for predicates when estimating size

max-bigdec clj

Maximum big decimal has value of (2^1015-1) x 10^2147483648

max-bigint clj

Maximum big integer is 2^1015-1

meta clj

dbi name for Datalog runtime meta information is `datalevin/meta

min-bigdec clj

Minimum big decimal has value of -2^1015 x 10^2147483648

min-bigint clj

Minimum big integer is -2^1015

opts clj

dbi name for Datalog options is `datalevin/opts

positions clj

dbi name suffix for search engine positions index is positions

rawtext clj

dbi name suffix for search engine raw text is rawtext

schema clj

dbi name for Datalog schema is `datalevin/schema

terms clj

dbi name suffix for search engine terms index is terms

tmp-dbi clj

Default dbi name of the spilled db is t

vae clj

dbi name for Datalog VAE index is `datalevin/vae