Drupal6: problem with exposed filters in Views2

i'm trying to create a View in Drupal6; i would like to have a single textfield to be used as filter; i've defined an exposed filter of type search term and it runs fine when the user enters the correct string; i would like to show results also in case of substring (using the LIKE operator) but i cannot see 开发者_C百科how to define it in search term. Do i have to override sql string in a form_alter? If so, how can i do it?

Thanks in advance and greetings c.

This should be possible with the Contains operator.