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fix some fatal error for merge groupby/ hash distinct/ px_coord_merge_sort

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ls0
2021-09-08 14:50:42 +08:00
committed by wangzelin.wzl
parent ea087416e4
commit 79f1a13d71
3 changed files with 35 additions and 19 deletions
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13
src/sql/engine/aggregate/ob_aggregate_processor.cpp
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@ -494,7 +494,9 @@ int ObAggregateProcessor::clone_cell(ObDatum& target_cell, const ObDatum& src_ce
int64_t curr_size = 0;
// length + magic num + data
int64_t need_size = sizeof(int64_t) * 2 + (is_number ? ObNumber::MAX_BYTE_LEN : src_cell.len_);
if (target_cell.len_ > 0) {
// we can't decide reuse memory on target_cell.len_, because for null datum we
// also have reserved buffer
if (OB_NOT_NULL(target_cell.ptr_)) {
void* data_ptr = const_cast<char*>(target_cell.ptr_);
const int64_t data_length = target_cell.len_;
if (OB_ISNULL((char*)data_ptr - sizeof(int64_t)) ||
@ -548,10 +550,11 @@ int ObAggregateProcessor::clone_cell(ObDatum& target_cell, const ObDatum& src_ce
}
if (OB_SUCC(ret)) {
int64_t pos = 0;
if (OB_FAIL(target_cell.deep_copy(src_cell, buf, need_size, pos))) {
LOG_WARN("fall to deep_copy", K(src_cell), K(ret));
}
// To reuse prealloc memory, we must use specialize deep_copy method
// Otherwise for null value, we won't reserve its orgin ptr in ObDatum::deep_copy
memcpy(buf, src_cell.ptr_, src_cell.len_);
target_cell.ptr_ = buf;
target_cell.pack_ = src_cell.pack_;
}
OX(LOG_DEBUG("succ to clone cell", K(src_cell), K(target_cell), K(curr_size), K(need_size)));
return ret;