When data is inserted into ClickHouse, it creates one or more blocks (parts). In replicated environments, such as ClickHouse Cloud, a hash is also written in ClickHouse Keeper. Subsequent inserted blocks are compared against these hashes and ignored if a match is present. This is useful since it allows clients to safely retry inserts in the event of no acknowledgement from ClickHouse e.g., because of a network interruption. This requires blocks to be identical i.e., the same size with the same rows in the same order. These hashes are stored for only the most recent 100 blocks, although this can be modified. Note higher values will slow down inserts due to the need for more comparisons.
which ones are “just read or write from the sockets”?,更多细节参见新收录的资料
。新收录的资料是该领域的重要参考
However, there was a breed of computer that really stood out from the rest and not only looked far more exotic, but had a clear lead in terms of performance and capabilities — the UNIX workstation. While most people were running Windows 3.x and being frustrated at the limited resources, lack of true multitasking and all too frequent instability, UNIX workstations provided a far more advanced, feature rich and robust environment. This included proper multitasking and typically greater RAM, more powerful CPU and advanced graphics, plus higher performance disks etc. Of course, this all came at a cost and a UNIX workstation could easily have a price tag 10x that of a typical PC.,更多细节参见新收录的资料
As for inflation, the primary measure used by the Federal Reserve is the personal consumption expenditures price index. It was 2.6% in both 2024 and 2025.
I prefer to use the manual connection option, so I have control over it.