diff --git a/conf/evolutions/default/3.sql b/conf/evolutions/default/3.sql
index a4f659d0..ee55a478 100644
--- a/conf/evolutions/default/3.sql
+++ b/conf/evolutions/default/3.sql
@@ -17,7 +17,7 @@ create table input_tag (
 	last_update timestamp not null
 );
 
-create unique index input_tag_property_value_index on input_tag (solr_index_id, property, tag_value);
+create unique index input_tag_property_value_index on input_tag (solr_index_id, property (100), tag_value (100));
 create index input_tag_predefined_index on input_tag (predefined);
 
 -- Add table tag_2_input
diff --git a/conf/evolutions/default/8.sql b/conf/evolutions/default/8.sql
index f63b1071..119f2b80 100644
--- a/conf/evolutions/default/8.sql
+++ b/conf/evolutions/default/8.sql
@@ -1,10 +1,10 @@
 # --- !Ups
 
 -- Ensure that we do not allow duplicate solr indexes with same name.
-create unique index solr_index_field_name on solr_index (name);
+create unique index solr_index_field_name on solr_index (name (500));
 
 -- Ensure that we do not allow duplicate suggested solr fields for the same solr index.
-create unique index suggested_solr_field_name_solr_index on suggested_solr_field (solr_index_id, name);
+create unique index suggested_solr_field_name_solr_index on suggested_solr_field (solr_index_id, name (500));