Way to load mvcc tables automatically when DolphinDB starts? - startup

Question

I create the following 3 mvcc tables
n=5
syms=`IBM`C`MS`MSFT`JPM`ORCL`FB`GE
timestamp=09:30:00+rand(18000,n)
sym=rand(syms,n)
qty=100*(1+rand(100,n))
price=5.0+rand(100.0,n)
temp=table(timestamp,sym,qty,price)
t1= mvccTable(1:0,`timestamp`sym`qty`price,[TIMESTAMP,SYMBOL,INT,DOUBLE],"/home/xjqian/mvcctables","t1")
t1.append!(temp);
t2= mvccTable(1:0,`timestamp`sym`qty`price,[TIMESTAMP,SYMBOL,INT,DOUBLE],"/home/xjqian/mvcctables","t2")
t2.append!(temp);
t3= mvccTable(1:0,`timestamp`sym`qty`price,[TIMESTAMP,SYMBOL,INT,DOUBLE],"/home/xjqian/mvcctables","t3")
t3.append!(temp);
Is there any way to automatically load all these tables when DolphinDB is started?

Answer 1

The script can be used to get all table names and load the tables:
login(`admin,`123456)
tables=select * from files("/home/xjqian/mvcctables") where isDir=true
for (tableName in tables.filename){
share( loadMvccTable("/home/xjqian/mvcctables",tableName) , "share_"+tableName)
}
Add it to the startup script startup.dos, so the tables can be loaded when the system is started. See the Startup Scripts for more information.
You can check whether the tables are loaded with objs(true):
select * from objs(true) where name like "share_%"
See the queried result:
name type form rows columns bytes shared extra
share_t1 MVCC TABLE 5 4 368 true
share_t2 MVCC TABLE 5 4 368 true
share_t3 MVCC TABLE 5 4 368 true