For memory-intensive aggregations or sorting scenarios, users can use the settings max_bytes_before_external_group_by and max_bytes_before_external_sort respectively. The former of these is discussed extensively here. In summary, this ensures any aggregations can "spill" out to disk if a memory threshold is exceeded. This will impact query performance but will help ensure queries do not run out of memory. The latter sorting setting helps address similar issues with memory-intensive sorts. This can be particularly important in distributed environments where a coordinating node receives sorted responses from child shards. In this case, the coordinating server can be asked to sort a dataset larger than its available memory. With max_bytes_before_external_sort, sorting can be allowed to spill over to disk. This setting is also helpful for cases where the user has an ORDER BY after a GROUP BY with a LIMIT, especially in cases where the query is distributed.
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全年规模以上工业企业利润[25]73982亿元，比上年增长0.6%。分经济类型看，国有控股企业利润20561亿元，比上年下降3.9%；股份制企业55408亿元，下降0.1%，外商及港澳台投资企业17447亿元，增长4.2%；私营企业22811亿元，与上年持平。分门类看，采矿业利润8345亿元，比上年下降26.2%；制造业56916亿元，增长5.0%；电力、热力、燃气及水生产和供应业8721亿元，增长9.4%。规模以上工业企业每百元营业收入中的成本为85.31元，比上年增加0.16元；营业收入利润率为5.31%，下降0.03个百分点。年末规模以上工业企业资产负债率为57.6%，比上年末下降0.1个百分点。全年规模以上工业产能利用率[26]为74.4%。