...log_search table already populated.
...have log_user_text field in logging table.
...l10n_cache table already exists.
...external_user table already exists.
Adding ls_field_val key to table log_search... A database query syntax error has occurred.
The last attempted database query was:
"ALTER TABLE `log_search`
 DROP PRIMARY KEY,
 ADD UNIQUE INDEX ls_field_val (ls_field,ls_value,ls_log_id)
"
from within function "DatabaseBase::sourceStream".
Database returned error "1091: Can't DROP 'PRIMARY'; check that column/key exists (cmsdbserver)"