leung-ming commented on code in PR #1893:
URL: https://github.com/apache/datafusion-comet/pull/1893#discussion_r2179733980
##########
native/spark-expr/src/utils.rs:
##########
@@ -223,6 +228,20 @@ pub fn is_valid_decimal_precision(value: i128, precision:
u8) -> bool {
&& value <= MAX_DECIMAL128_FOR_EACH_PRECISION[precision as usize]
}
+/// Build a boolean buffer from the state and reset the state, based on the
emit_to
+/// strategy.
+pub fn build_bool_state(state: &mut BooleanBufferBuilder, emit_to: &EmitTo) ->
BooleanBuffer {
+ let bool_state: BooleanBuffer = state.finish();
+
+ match emit_to {
+ EmitTo::All => bool_state,
+ EmitTo::First(n) => {
+ state.append_buffer(&bool_state.slice(*n, bool_state.len() - n));
Review Comment:
Both do the same things.
Rather than append bit by bit and not sure it is whether optimized or not(I
believe not), `append_buffer` know how many bits to append and append bits with
word length granularity.
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