UPSERT in PostgreSQL using jOOQ

Question

I am trying to perform an UPSERT in PostgreSQL using the jOOQ library.

For doing this I am currently trying to implement the following SQL statement in jOOQ: https://st

Answer 1

Seems a bit of a complicated way of achieving the objective. Why not use a simple stored fucntion? how to create an upsert function is described in the postgresql manual then just call it from your java code.

Answer 2

jOOQ 3.7+ supports PostgreSQL 9.5's ON CONFLICT clause:

• https://github.com/jOOQ/jOOQ/issues/4299
• http://www.postgresql.org/docs/9.5/static/sql-insert.html

The full PostgreSQL vendor-specific syntax is not yet supported, but you can use the MySQL or H2 syntax, which can both be emulated using PostgreSQL's ON CONFLICT:

MySQL INSERT .. ON DUPLICATE KEY UPDATE:

DSL.using(configuration)
   .insertInto(TABLE)
   .columns(ID, A, B)
   .values(1, "a", "b")
   .onDuplicateKeyUpdate()
   .set(A, "a")
   .set(B, "b")
   .execute();

H2 MERGE INTO ..

DSL.using(configuration)
   .mergeInto(TABLE, A, B, C)
   .values(1, "a", "b")
   .execute();

Answer 3

Here is an upsert utility method derived from Lucas' solution above for UpdatableRecord objects:

public static int upsert(final DSLContext dslContext, final UpdatableRecord record) {
    return dslContext.insertInto(record.getTable())
                     .set(record)
                     .onDuplicateKeyUpdate()
                     .set(record)
                     .execute();
}

Answer 4

Inspired by @ud3sh comment with JOOQ 3.11, Kotlin, and the PostgreSQL DSL

This is an extension function to call upsert directly on the UpdatableRecord object

import org.jooq.UpdatableRecord

internal fun UpdatableRecord<*>.upsert(): Int {
    if(this.configuration() == null) {
        throw NullPointerException("Attach configuration to record before calling upsert")
    }
    return this.configuration().dsl().insertInto(this.getTable()).set(this).onConflict().doUpdate().set(this).execute()
}