getTSDBDataStat
Syntax
getTSDBDataStat([dbName="*"], [tableName="*"], [chunkId])
Arguments
dbName (optional) is a string indicating the database name. It can contain wildcards ("*", "%", and "?"). The default value is "*".
tableName (optional) is a string indicating the table name. It can contain wildcards ("*", "%", and "?"). The default value is "*".
chunkId (optional) is a STRING scalar or vector indicating chunk ID(s). If chunkId is specified, dbName and tableName must be empty or “*”.
"*" matches all; "?" matches a single character; "%" matches 0, 1 or more characters.
Details
Get the number of level files and sort key entries of specified chunks on the current
node. You can also use function pnodeRun
to check the number of
level files and sort key entries of tables in a cluster.
Return value: A table containing the following columns:
-
levelFileCount: the number of level files of tables for each chunk.
-
sortKeyEntryCount: the number of sort key entries that has not been deduplicated in all level files for each chunk.
Examples
t = table(1 2 1 1 2 2 3 as month, `Rome`Paris`London`Paris`Rome`London`Rome as city, 200 500 100 300 300 400 400 as sold) db_name = "dfs://window_function" if (existsDatabase(db_name)) { dropDatabase(db_name) } db = database(db_name, HASH, [INT, 4], , 'TSDB') pt = db.createPartitionedTable(t, "pt", "month", ,"sold") pt.append!(t) pt1 = db.createPartitionedTable(t, "pt1", "month", ,"sold") pt1.append!(t)
Get the number of level files and sort key entries for all tables in the databases starting with dfs://window.
getTSDBDataStat("dfs://window%") /* outputdbName chunkId tableName levelFileCount sortKeyEntryCount --------------------- ------------------------------------ --------- -------------- ----------------- dfs://window_function 520e78eb-49b9-93a8-4c28-7f367007aa14 pt 1 3 dfs://window_function 4859462b-62e7-9782-42f1-5c32a7109782 pt1 1 3 dfs://window_function 9bcc10db-ffe7-4994-4ac7-f37a8cb69c65 pt 1 3 dfs://window_function 1d2b7a5e-6da9-2d9f-4eff-e0e60e49e785 pt1 1 3 dfs://window_function 4ca5d901-6d86-2db8-40eb-ee1d63184b99 pt 1 1 dfs://window_function c7da5329-569d-4888-4ed4-746a28b09079 pt1 1 1 */
Get the number of level files and sort key entries for table "pt" in the databases starting with dfs://window.
getTSDBDataStat("dfs://window%","pt") /* output dbName chunkId tableName levelFileCount sortKeyEntryCount --------------------- ------------------------------------ --------- -------------- ----------------- dfs://window_function 520e78eb-49b9-93a8-4c28-7f367007aa14 pt 1 3 dfs://window_function 9bcc10db-ffe7-4994-4ac7-f37a8cb69c65 pt 1 3 dfs://window_function 4ca5d901-6d86-2db8-40eb-ee1d63184b99 pt 1 1 */
Get the number of level files and sort key entries for specified chunk:
getTSDBDataStat(chunkId="520e78eb-49b9-93a8-4c28-7f367007aa14")
dbName | chunkId | tableName | levelFileCount | sortKeyEntryCount |
---|---|---|---|---|
dfs://window_function | 520e78eb-49b9-93a8-4c28-7f367007aa14 | pt | 1 | 3 |