Allocate a fixed-row table buffer — table_buffer • shard

Allocates a columnar table output: one typed buffer per column, each of length nrow. Intended for lock-free disjoint row-range writes in shard_map.

Usage

table_buffer(schema, nrow, backing = c("auto", "mmap", "shm"))

Arguments

schema: A shard_schema.
nrow: Total number of rows in the final table.
backing: Backing type for buffers ("auto", "mmap", "shm").

Value

A shard_table_buffer object with one shared buffer per schema column.

Examples

# \donttest{
s <- schema(x = float64(), y = int32())
tb <- table_buffer(s, nrow = 100L)
# }