Error when using sequence for primary key in postgres and Hibernate - postgresql

Question

I'm using JPA/Hibernate and postgres as my DB
I created a sequence in postgres like this:
CREATE SEQUENCE player_sequence
INCREMENT 20
START 1;
I want Hibernate to use the above sequence for primary key.
The id part of the entity is:
#Id
#GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "player_seq")
#SequenceGenerator(name = "player_seq", sequenceName = "player_sequence", allocationSize = 20)
private Integer id;
When I create a new player and try to save it via EntityManger.persist method I get the following error:
Hibernate: select next_val as id_val from player_sequence for update
org.hibernate.id.enhanced.TableStructure$1$1 execute
ERROR: could not read a hi value
org.postgresql.util.PSQLException: ERROR: column "next_val" does not exist
I don't understand what I do wrong
EDIT:
Here is content of persistence.xml:

Answer 1

Try to correct your persistence.xml in this way:
<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
http://xmlns.jcp.org/xml/ns/persistence/persistence_2_2.xsd"
version="2.2">
<persistence-unit name="my-persistence-unit">
<description>...</description>
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<properties>
<!-- It was wrong !!! -->
<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQL10Dialect" />
<property name="javax.persistence.jdbc.driver" value="org.postgresql.Driver" />
<property name="javax.persistence.jdbc.url" value="jdbc:postgresql://localhost:5432/basketball" />
<property name="javax.persistence.jdbc.user" value="postgres" />
<property name="javax.persistence.jdbc.password" value="1234" />
<property name="hibernate.show_sql" value="true" />
</properties>
</persistence-unit>
</persistence>