For example, query. If MYSQL is divided into libraries and tables, it will definitely increase the difficulty of logic code. For example, a simple query, after dividing the tables, first find the table and then query. This will multiply the complexity of the code. . . . How should we design and solve this problem? ? ? ? ? ? ? ? ? ? ? ?
PS: I am inexperienced. The current level is above mysql. I found that the logic code will become much more complicated once the library is divided into tables.
This has been discovered by you, but there is really no better way. …
1, respectively inquiring, obtaining results, and then Merge sort in memory
2, storing the above results in an intermediate table
Isn’t this MapReduce