LIKE vs. ~ in PostgreSQL: When Should I Use Regular Expressions?

Comparison of LIKE and ~ operators in PostgreSQL

It is recommended to use "~" instead of "LIKE". What is the reason behind this? Let's take a closer look at the differences between these two operators.

"~" represents the regular expression operator, which gives users the power of regular expressions. As stated in the documentation, it allows complex wildcards and quantifiers to be specified. This enhanced functionality goes beyond LIKE, making it the first choice when this level of complexity is required.

However, it is important to note that LIKE and ~ serve different purposes. LIKE is simpler and more limited in functionality, but may be sufficient for basic pattern matching needs. In contrast, ~ provides a wider range of options for more complex matching needs.

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