schema
Syntax
schema(table|dbHandle)
Arguments
X is a table or a database.
Details
Display information about the schema of a table or a database.
Examples
n=1000000
ID=rand(10, n)
x=rand(1.0, n)
t=table(ID, x)
db=database("dfs://rangedb101", RANGE, 0 5 10)
pt = db.createPartitionedTable(t, `pt, `ID)
pt.append!(t)
pt=loadTable(db,`pt);
schema(pt);
artitionSchema->[0,5,10]
artitionSites->
artitionColumnType->4
artitionTypeName->RANGE
hunkGranularity->TABLE
eepDuplicates->ALL
ngineType->OLAP
hunkPath->
artitionColumnIndex->0
olDefs->
ame typeString typeInt comment
--- ---------- ------- -------
D INT 4
DOUBLE 16
artitionType->2
artitionColumnName->ID
schema(db);
// output
partitionSchema->[0,5,10]
partitionSites->
partitionTypeName->RANGE
atomic->TRANS
databaseDir->dfs://rangedb101
chunkGranularity->TABLE
engineType->OLAP
partitionType->2