diff --git a/openbis/source/sql/postgresql/migration/migration-043-044.sql b/openbis/source/sql/postgresql/migration/migration-043-044.sql
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+-- Migration from 043 to 044
+
+--------------------------------------------------------------------------------------------------
+-- Add ordinal and section columns to ETPT tables.
+-- 1. Ordinal column is a positive and not null integer to entity type property type tables. 
+-- Initially ordinal values of property types of one entity type start from 1 
+-- and increase with increase of ETPT id (so initial order will depend on registration order). 
+-- Ordinals should be unique inside one ETPT table but because we use bulk update we can't
+-- easily create this constraint.
+-- 2. Section - string (can be null, don't have to create uniquely named blocks with order)
+--------------------------------------------------------------------------------------------------
+
+-- add a common domain
+CREATE DOMAIN ordinal_int AS bigint CHECK (VALUE > 0);
+
+ALTER TABLE controlled_vocabulary_terms ALTER COLUMN ordinal TYPE ORDINAL_INT;
+
+-- samples
+ALTER TABLE sample_type_property_types ADD COLUMN section DESCRIPTION_1000;
+ALTER TABLE sample_type_property_types ADD COLUMN ordinal ORDINAL_INT;
+UPDATE sample_type_property_types SET ordinal = (
+	SELECT count(*) FROM sample_type_property_types stpt 
+	WHERE stpt.saty_id = sample_type_property_types.saty_id AND stpt.id <= sample_type_property_types.id
+);
+ALTER TABLE sample_type_property_types ALTER COLUMN ordinal SET NOT NULL;
+
+-- experiments
+ALTER TABLE experiment_type_property_types ADD COLUMN section DESCRIPTION_1000;
+ALTER TABLE experiment_type_property_types ADD COLUMN ordinal ORDINAL_INT;
+UPDATE experiment_type_property_types SET ordinal = (
+	SELECT count(*) FROM experiment_type_property_types etpt 
+	WHERE etpt.exty_id = experiment_type_property_types.exty_id AND etpt.id <= experiment_type_property_types.id
+);
+ALTER TABLE experiment_type_property_types ALTER COLUMN ordinal SET NOT NULL;
+
+-- data sets
+ALTER TABLE data_set_type_property_types ADD COLUMN section DESCRIPTION_1000;
+ALTER TABLE data_set_type_property_types ADD COLUMN ordinal ORDINAL_INT;
+UPDATE data_set_type_property_types SET ordinal = (
+	SELECT count(*) FROM data_set_type_property_types dstpt 
+	WHERE dstpt.dsty_id = data_set_type_property_types.dsty_id AND dstpt.id <= data_set_type_property_types.id
+);
+ALTER TABLE data_set_type_property_types ALTER COLUMN ordinal SET NOT NULL;
+
+-- materials
+ALTER TABLE material_type_property_types ADD COLUMN section DESCRIPTION_1000;
+ALTER TABLE material_type_property_types ADD COLUMN ordinal ORDINAL_INT;
+UPDATE material_type_property_types SET ordinal = (
+	SELECT count(*) FROM material_type_property_types mtpt 
+	WHERE mtpt.maty_id = material_type_property_types.maty_id AND mtpt.id <= material_type_property_types.id
+);
+ALTER TABLE material_type_property_types ALTER COLUMN ordinal SET NOT NULL;