schema

A schema is a named set of columns with explicit types. It is used to
allocate table buffers and validate writes.

Provides a parallel execution runtime for R that emphasizes
deterministic memory behavior and efficient handling of large shared inputs.
'shard' enables zero-copy parallel reads via shared/memory-mapped segments,
encourages explicit output buffers to avoid large result aggregation, and
supervises worker processes to mitigate memory drift via controlled recycling.
Diagnostics report peak memory usage, end-of-run memory return, and hidden
copy/materialization events to support reproducible performance benchmarking.

Bradley Buchsbaum

shard

Deterministic, Zero-Copy Parallel Execution for R

schema function

<dl><dt>...</dt>
<dd>Named columns with type specs (e.g., <code>int32()</code>, <code>float64()</code>).</dd></dl>

Arguments

Define a table schema — schema

<dl>

<dt>...</dt>
<dd>Named columns with type specs (e.g., <code>int32()</code>, <code>float64()</code>).</dd>

</dl>

schema: Define a table schema

Description

Usage

Value

Arguments

Examples