replyr (version 1.0.5)

keysAreUnique: Check uniqueness of rows with respect to keys.

Description

Can be an expensive operation.

Usage

keysAreUnique(tDesc)

Arguments

tDesc

description of tables, from tableDescription (and likely altered by user).

Value

logical TRUE if keys are unique

See Also

tableDescription

Examples

# NOT RUN {
d <- data.frame(x=c(1,1,2,2,3,3), y=c(1,2,1,2,1,2))
tDesc1 <- tableDescription('d1', d)
tDesc2 <- tableDescription('d2', d)
tDesc <- rbind(tDesc1, tDesc2)
tDesc$keys[[2]] <- c(x='x')
keysAreUnique(tDesc)

# }