Create automatically tables at startup

[mmaryo]

Hello

It looks like tables are not created
Postgres stay empty

Even with spring.jpa.hibernate.ddl-auto=create

This is my entity

@Table(schema = "common", name = "\"Exchanges\"")
data class Exchanges (
    @Column("ID") @Id var id: Int = 0,
    @Column("KaikoExchangeCode") var kaikoExchangeCode: String? = null,
)

And the repository

interface ExchangesRepository : R2dbcRepository<Exchanges, Long>

I use Spring Boot 3.0.0.M1, WebFlux, Jdk 17, Kotin, R2DBC

Do you have an idea? How to debug and find a solution?

EDIT
Also I try to connect to H2 db
spring.r2dbc.url=r2dbc:h2:mem:///testdb
Connection is done
But test end with

Caused by: org.h2.jdbc.JdbcSQLSyntaxErrorException: Schema "COMMON" not found; SQL statement:
SELECT common."Exchanges".* FROM common."Exchanges" [90079-210]

That means the table is not created at test startup

[mmaryo]

I did a little project
Please find the attachment

MappingTest.zip

This test

@SpringBootTest
class OneTest {
    @Autowired
    lateinit var exchangesRepository: ExchangesRepository
    @Test
    fun test() {
        exchangesRepository.save(Exchanges(44, "66")).block()
        val res = exchangesRepository.findAll().collectList().block()
        println(res)
    }

}

Throw this error

org.springframework.r2dbc.BadSqlGrammarException: execute; bad SQL grammar [UPDATE common."ExchangesCodesMapping" SET ExchangeCode = $1 WHERE common."ExchangesCodesMapping".ID = $2]; nested exception is io.r2dbc.spi.R2dbcBadGrammarException: [90079] [90079] Schema "COMMON" not found; SQL statement:
UPDATE common."ExchangesCodesMapping" SET ExchangeCode = $1 WHERE common."ExchangesCodesMapping".ID = $2 [90079-210]

Notice when I run the server to an existing database ExchangesRepository works very well
It seems this code is unable to create the table at startup

[mmaryo]

It seems that is related to NamingStrategy
How to override it ?
I need to add a double quote and keep the case of string inside @column("Name")

[mmaryo]

open class R2dbcConfiguration : AbstractR2dbcConfiguration() {
    override fun connectionFactory(): ConnectionFactory {
        throw ExecutionControl.NotImplementedException("No need")
    }

    override fun r2dbcMappingContext(namingStrategy: Optional<NamingStrategy>, r2dbcCustomConversions: R2dbcCustomConversions): R2dbcMappingContext {
        val context = super.r2dbcMappingContext(namingStrategy, r2dbcCustomConversions)
        context.isForceQuote = true
        return context
    }
}

[linghengqian]

spring.jpa.hibernate.ddl-auto is completely unrelated to R2DBC

[Kabir1506]

@mmaryo did you find any solution to this?

[franciskinyuru]

Below worked for me in a configuration class and below bean
@Bean public ConnectionFactoryInitializer connectionFactoryInitializer(ConnectionFactory connectionFactory) { ConnectionFactoryInitializer initializer = new ConnectionFactoryInitializer(); initializer.setConnectionFactory(connectionFactory); ResourceDatabasePopulator populator = new ResourceDatabasePopulator(); populator.addScript(new ClassPathResource("schema.sql")); initializer.setDatabasePopulator(populator); return initializer; }

Then have you schema.sql in the resources folder

Finally add below in your application.properties or yml file
spring.resources.static-locations=classpath:/,classpath:/resources/