The Google Ads Query Language lets you filter the returned data set with a number of different operators. When filtering on string values, the default case sensitivity of each operator will play an important part in correctly filtering your results.
| Operators | Case Sensitivity |
|---|---|
| = or != | Case sensitive |
| (NOT) IN | Case sensitive |
| (NOT) LIKE | Case insensitive |
| CONTAINS (...) | Case sensitive |
| REGEXP_MATCH | Optionally Both |
SELECT campaign.id
FROM campaign
WHERE campaign.name REGEXP_MATCH "(?i).*test.*"