We also see even experienced users being caught by less obvious LIMIT behavior in multi-node environments where a table has many shards. Sharding allows users to split or replicate their data across multiple instances of ClickHouse. When a query with a LIMIT N clause is sent to a sharded table e.g. via a distributed table, this clause will be propagated down to each shard. Each shard will, in turn, need to collate the top N results, returning them to the coordinating node. This can prove particularly resource-intensive when users run queries that require a full table scan. Typically these are "point lookups" where the query aims to just identify a few rows. While this can be achieved in ClickHouse with careful index design a non-optimized variant, coupled with a LIMIT clause, can prove extremely resource-intensive.
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FACEIT AC is used for the FACEIT competitive platform for Counter-Strike. It is a kernel-level system with a well-regarded reputation in the competitive community for effective cheat detection, and has been the subject of academic analysis examining the architectural properties of kernel anti-cheat software more broadly.
其中，西安银行（600928.SH）压降幅度最大。财报数据显示，截至2025年6月末，该行票据贴现余额7亿元，相比2023年末下降了94%；票据占该行贷款的比重也由6%降至0.25%。