caiconghui commented on code in PR #27943:
URL: https://github.com/apache/doris/pull/27943#discussion_r1415290569
##########
be/src/vec/exec/scan/scanner_scheduler.cpp:
##########
@@ -384,10 +384,15 @@ void ScannerScheduler::_scanner_scan(ScannerScheduler*
scheduler, ScannerContext
ctx->return_free_block(std::move(block));
} else {
if (!blocks.empty() && blocks.back()->rows() + block->rows() <=
state->batch_size()) {
- status =
vectorized::MutableBlock(blocks.back().get()).merge(*block);
+ auto rows = blocks.back()->rows() + block->rows();
+ vectorized::MutableBlock mutable_block(blocks.back().get());
+ status = mutable_block.merge(*block);
if (!status.ok()) {
break;
}
+ if (!blocks.back().get()->is_valid(rows)) {
Review Comment:
the key point is that we reassign value to block from mutable block, and
where to do check i think are both ok
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