Struct ResourceLimits 

pub struct ResourceLimits {
    pub max_memory_bytes: Option<u64>,
    pub max_execution_time_ms: Option<u64>,
}

Resource limits for UDF execution.

Memory limits (M6 limitation): The memory check uses a conservative proxy of input and output batch size in bytes. This is not a true heap limit and does not catch UDFs that allocate large intermediate structures during execution. A production implementation would use a custom allocator or cgroup limits.

Time limits: Currently checked post-hoc after the UDF returns. A preemptive timeout using tokio::time::timeout or std::thread with a join timeout is planned for R9+ to prevent resource exhaustion from hung UDFs.

Fields

max_memory_bytes: Option<u64>

max_execution_time_ms: Option<u64>

Trait Implementations

impl Clone for ResourceLimits

fn clone(&self) -> ResourceLimits

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ResourceLimits

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ResourceLimits

fn default() -> ResourceLimits

Returns the “default value” for a type.