paste0 changed to paste in CJ().  paste0 was introduced in R 2.15.0. data.table tries to support the slower (corporate) upgraders such as Google.  Currently we depend on (and check with) 2.12.0,  and might bump the dependency to R 2.14.0 in the next release (still no paste0).  Although Google did say they would upgrade to R 2.14 last year.
paste0 changed to paste in CJ().  paste0 was introduced in R 2.15.0. data.table tries to support the slower (corporate) upgraders such as Google.  Currently we depend on (and check with) 2.12.0,  and might bump the dependency to R 2.14.0 in the next release (still no paste0).  Although Google did say they would upgrade to R 2.14 last year.

vlulla/data.table,Rdatatable/data.table,vlulla/data.table,Rdatatable/data.table,jangorecki/data.table,jangorecki/data.table,vlulla/data.table,jangorecki/data.table,Rdatatable/data.table,vlulla/data.table,jangorecki/data.table,Rdatatable/data.table