test comment

Author: MichaelChirico

inst/tests/tests.Rraw

@@ -20775,7 +20775,7 @@ x = data.table(a=1, b=2L)
 y = data.table(c=1.5, d=1L)
 test(2297.31, y[x, on=.(c == a, d == a), nomatch=NULL], output="Empty data.table (0 rows and 3 cols): c,d,b")
 
-# #6605: Joins do not warn user when using POSc and Date comparisons
+# Ensure a warning when trying problematic join on mismatched time types, #6605
 test(2297.41, data.table(a = .POSIXct(20000L), v1 = 1)[data.table(a = .Date(20000L), v2 = 2), on = "a"], output = ".+", warning = "incompatible")
 
 # rbindlist(l, use.names=TRUE) should handle different colnames encodings #5452