qd_deserialize: qd_deserialize

In qs2: Efficient Serialization of R Objects

qd_deserialize

Description

Deserializes a raw vector to an object using the qdata format.

Usage

qd_deserialize(input,
         use_alt_rep = qopt("use_alt_rep"),
         validate_checksum = qopt("validate_checksum"),
         nthreads = qopt("nthreads"))

Arguments

input	The raw vector to deserialize.
use_alt_rep	Request ALTREP when reading qdata string data. This option is temporarily disabled; if TRUE, qs2 warns and falls back to ordinary character vectors (the initial value is FALSE).
validate_checksum	If TRUE, validate checksum before deserialization and error on mismatch (or missing checksum). If FALSE, checksum is computed during read and mismatches (or missing checksum) produce a warning after reading (the initial value is FALSE).
nthreads	The number of threads to use when reading data (the initial value is 1L). When TBB is not available, values greater than 1 emit a warning and fall back to 1.

Value

The deserialized object.

Examples

x <- data.frame(int = sample(1e3, replace=TRUE),
         num = rnorm(1e3),
         char = sample(state.name, 1e3, replace=TRUE),
         stringsAsFactors = FALSE)
xserialized <- qd_serialize(x)
x2 <- qd_deserialize(xserialized)
identical(x, x2) # returns TRUE

qs2 documentation built on April 22, 2026, 9:07 a.m.