group_by multiple arguments

[karlmoller]

The following works if df is a local (copied using collect(df)) dataframe:

df %>%
    group_by(colA, colB) %>%
    summarise(
        count = n()
    )

And returns totals for (colA, colB) pairs as expected.

When df is not local I get the following:

Database: Vertica ODBC Connection
-----+DSN: VerticaDSN
-----+Host: xxx
-----+DB Version: 08.00.0000
-----+ODBC Version: 03.80
Error in cat("Groups: ", commas(op_grps(x$ops)), "\n", sep = "") :
could not find function "commas"

Grouping by a single column works fine. Is this a vertica.dplyr bug or a limitation of Vertica?

[shabbybanks]

The error seems to be a missing commas function in the print function for this object. Adding the version from dplyr should resolve the error. Note also you have not ungrouped the query, which would have also, in this case, concealed the bug.