Hi,

I have a postgres table containing an ENUM type as follows:


CREATE TYPE notification_type AS ENUM ('TYPE_A', 'TYPE_B', 'TYPE_C');

CREATE TABLE users
(
 id bigint NOT NULL,
 notification_type notification_type,
 CONSTRAINT users_pkey PRIMARY KEY (id)
);

The jooq code generator outputs the following EnumType for the above and 
the generated POJOs reference this. 

public enum NotificationType implements EnumType {

 DEFAULT("DEFAULT"),

 EMAIL("EMAIL"),

 SMS("SMS");

 private final String literal;

 private NotificationType(String literal) {
 this.literal = literal;
 }

 /**
 * {@inheritDoc}
 */
 @Override
 public Schema getSchema() {
 return Public.PUBLIC;
 }

 /**
 * {@inheritDoc}
 */
 @Override
 public String getName() {
 return "notification_type";
 }

 /**
 * {@inheritDoc}
 */
 @Override
 public String getLiteral() {
 return literal;
 }
}

The issue I'm having is inserting using the generated DAOs insert(Users) 
method. Calling insert results in the following stack trace:

SEVERE: [127.0.0.1]:5701 [rx8081] [3.5.4] SQL [insert into "public"."users" 
("id", "username", "password_hash", "email", "display_name", "first_name", 
"last_name", "phone", "birth_date", "notification_type", "pending_email") 
values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)]; ERROR: column 
"notification_type" is of type notification_type but expression is of type 
character varying
  Hint: You will need to rewrite or cast the expression.
  Position: 223
org.jooq.exception.DataAccessException: SQL [insert into "public"."users" 
("id", "username", "password_hash", "email", "display_name", "first_name", 
"last_name", "phone", "birth_date", "notification_type", "pending_email") 
values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)]; ERROR: column 
"notification_type" is of type notification_type but expression is of type 
character varying
  Hint: You will need to rewrite or cast the expression.
  Position: 223
at org.jooq.impl.Utils.translate(Utils.java:1690)
at 
org.jooq.impl.DefaultExecuteContext.sqlException(DefaultExecuteContext.java:660)
at org.jooq.impl.AbstractQuery.execute(AbstractQuery.java:356)
at org.jooq.impl.TableRecordImpl.storeInsert0(TableRecordImpl.java:177)
at org.jooq.impl.TableRecordImpl$1.operate(TableRecordImpl.java:143)
at org.jooq.impl.RecordDelegate.operate(RecordDelegate.java:128)
at org.jooq.impl.TableRecordImpl.storeInsert(TableRecordImpl.java:139)
at org.jooq.impl.TableRecordImpl.insert(TableRecordImpl.java:132)
at org.jooq.impl.TableRecordImpl.insert(TableRecordImpl.java:127)
at org.jooq.impl.DAOImpl.insert(DAOImpl.java:161)
at org.jooq.impl.DAOImpl.insert(DAOImpl.java:140)
...
Caused by: org.postgresql.util.PSQLException: ERROR: column 
"notification_type" is of type notification_type but expression is of type 
character varying
  Hint: You will need to rewrite or cast the expression.
  Position: 223
at 
org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2182)
at 
org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1911)
at 
org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:173)
at 
org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:645)
at 
org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:495)
at 
org.postgresql.jdbc2.AbstractJdbc2Statement.executeUpdate(AbstractJdbc2Statement.java:441)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at 
org.postgresql.ds.jdbc23.AbstractJdbc23PooledConnection$StatementHandler.invoke(AbstractJdbc23PooledConnection.java:453)
at com.sun.proxy.$Proxy35.executeUpdate(Unknown Source)
at 
org.jooq.tools.jdbc.DefaultPreparedStatement.executeUpdate(DefaultPreparedStatement.java:88)
at org.jooq.impl.AbstractDMLQuery.execute(AbstractDMLQuery.java:397)
at org.jooq.impl.AbstractQuery.execute(AbstractQuery.java:342)
... 31 more

Am I right in assuming that this should work? Any direction here would be 
much appreciated.

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