r - Access table in other than default scheme (database) from sparklyr

Question

After I managed it to connect to our (new) cluster using sparklyr with yarn-client method, now I can show just the tables from the default scheme. How can I connect to scheme.table? Using DBI it's working e.g. with the following line: dbGetQuery(sc, "SELECT * FROM scheme.table LIMIT 10") In HUE, I can show all tables from all schemes.

~g

Answer 1

You can either use a fully qualified name to register temporary view:

spark_session(sc) %>% 
  invoke("table", "my_database.my_table") %>%
  invoke("createOrReplaceTempView", "my_view")

tbl(sc, "my_view")

or use sql method to switch databases

spark_session(sc) %>% invoke("sql", "USE my_database")

and access table directly with dplyr:tbl:

tbl(sc, "my_table")