//// Compress data

db=database("C:/DolphinDB/Data/db1")
n=10000000
t=table(take(1..10000, n).sort() as id, take(2000.12.31+1..1000, n) as date, rand(10, n) as x, rand(10.0, n) as y)
saveTable(db, t, `t1)
saveTable(db, t, `t3, 0, 1);	// appending mode is off; compression mode is on.

USstocks = ploadText(C:/DolphinDB/Data/USstocks.csv)
saveTable(db, USstocks, `USstocks1)
saveTable(db, USstocks, `USstocks2, 0, 1);	// appending mode is off; compression mode is on.