SQLite table constraint – unique on multiple columns
Put the UNIQUE declaration within the column definition section; working example: CREATE TABLE a ( i INT, j INT, UNIQUE(i, j) ON CONFLICT REPLACE );
Put the UNIQUE declaration within the column definition section; working example: CREATE TABLE a ( i INT, j INT, UNIQUE(i, j) ON CONFLICT REPLACE );
I had a similar problem. I found that simply detaching plyr solved it: detach(package:plyr) library(dplyr)