What are the reasons in favor of limiting the number of indexable fields in a database?

The limitation on the number of indexable fields in a database is related to several reasons:

• Write performance: Indexes speed up read operations but slow down insert, update, and delete operations, as indexes need to be updated.
• Memory usage: Each index takes additional space on disk and in memory.
• Maintenance complexity: The more indexes there are, the more difficult it is to optimize queries and maintain the database.
• Reindexing: When the table structure or data changes, reindexing can take a significant amount of time.

Therefore, it is important to index only those fields that are frequently used in search or sorting conditions to balance read and write speeds.