Re: Adding LIMIT changes PostgreSQL plan from good to a bad one

SELECT contacts.id
FROM contacts
    JOIN contacts__aggregated AS contacts__aggregated_1 ON

         contacts__aggregated_1.company_id = contacts.company_id

         AND contacts__aggregated_1.contact_id = contacts.id

         AND contacts__aggregated_1.field_name = 'names'
WHERE contacts.company_id = '\x4c2118ad54397f271b000000'

AND EXISTS (

         SELECT
                     FROM contacts_values
                     WHERE contacts_values.field_id = '\x000000000000000000000000'
                       AND contacts_values.field_name = 'facebook'
                       AND nimble_contact_value_normalize(nimble_skip_long_values(contacts_values.value)) = nimble_contact_value_normalize('http://www.facebook.com/jon.ferrara'))
                       AND contacts_values.company_id = contacts.company_id AND contacts_values.id = contacts.id
         UNION ALL

         SELECT

                     FROM contacts_values
                     WHERE contacts_values.field_id = '\x000000000000000000000000'
                       AND contacts_values.field_name = 'last_name'
                       AND nimble_contact_value_normalize(nimble_skip_long_values(contacts_values.value)) = nimble_contact_value_normalize('Ferrara')

                       AND contacts_values.company_id = contacts.company_id AND contacts_values.id = contacts.id

)

ORDER BY contacts__aggregated_1.value ASC
LIMIT 30 OFFSET 0;