How to replace like operator in cassandra?

by giovanny.lueilwitz , in category: MySQL , a month ago

How to replace like operator in cassandra?

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1 answer

by darrion.kuhn , a month ago

@giovanny.lueilwitz 

In Cassandra, the LIKE operator is not supported for querying data. However, you can achieve similar functionality by using regular expressions (regex) or by preprocessing your data.

  1. Using Regular Expressions: You can use the REGEXP operator in Cassandra to perform pattern matching on text fields. Here's an example of how you can use regex to replace the LIKE operator:
1
SELECT * FROM table_name WHERE column_name REGEXP 'pattern';


  1. Preprocessing Data: Another approach is to preprocess your data before inserting it into the database. You can create additional columns or tables with preprocessed values for efficient querying.


For example, you can use a tokenization process to store partial values of your text data and then query on these preprocessed values. This can be done using tools like Apache Lucene or creating custom indexing mechanisms.


Overall, while the LIKE operator is not directly supported in Cassandra, you can achieve similar functionality using regex or by preprocessing your data.