mapleFU commented on code in PR #43955:
URL: https://github.com/apache/arrow/pull/43955#discussion_r1744728227
##########
cpp/src/parquet/column_reader.cc:
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@@ -2088,6 +2110,10 @@ class FLBARecordReader final : public
TypedRecordReader<FLBAType>,
}
void ReadValuesSpaced(int64_t values_to_read, int64_t null_count) override {
+ if (null_count == 0) {
+ ReadValuesDense(values_to_read);
Review Comment:
I've checked `FLBARecordReader`, it's ReadDense uses a extra
`null_bitmap_builder_`, sigh
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