Compare two schemas, arrays or streams — arrow

Two schemas are equal when their formats, names, flags and children match, and their metadata too unless metadata = FALSE. Two arrays are equal when their schemas are and they hold the same values, compared value by value: a null equals a null whatever bytes lie under it, and offsets do not matter. A dictionary or run-end encoded array compares by the values it decodes to. Two streams are equal when their schemas are and they yield the same number of batches, each pair equal. Comparing streams reads them both to the end.

Usage

arrow_equal(x, y, metadata = TRUE)

Arguments

x, y: Two handles of the same kind.
metadata: Whether schema and field metadata must match too.

Value

TRUE or FALSE. FALSE carries a reason attribute naming the first difference.

Examples

arrow_equal(arrow_schema("i"), arrow_schema("i"))
#> [1] TRUE
arrow_equal(arrow_schema("i"), arrow_schema("l"))
#> [1] FALSE
#> attr(,"reason")
#> [1] "format 'i' differs from 'l'"