PSQLException：在此结果集中未找到列名 start_value

Question

当 spring-boot maven 应用程序启动时，我收到 Postgresql 异常。

Maven 依赖

    <dependency>
        <groupId>org.postgresql</groupId>
        <artifactId>postgresql</artifactId>
        <scope>runtime</scope>
    </dependency>
    

房产档案

spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.PostgreSQLDialect
spring.jpa.hibernate.ddl-auto=none
spring.jpa.hibernate.show-sql=true
spring.datasource.url=jdbc:postgresql://localhost:5432/db
spring.datasource.username=postgres
spring.datasource.password=postgres

异常

org.postgresql.util.PSQLException: The column name start_value was not found in this ResultSet.
    at org.postgresql.jdbc.PgResultSet.findColumn(PgResultSet.java:2748) ~[postgresql-42.2.16.jar:42.2.16]
    at org.postgresql.jdbc.PgResultSet.getLong(PgResultSet.java:2631) ~[postgresql-42.2.16.jar:42.2.16]
    at com.zaxxer.hikari.pool.HikariProxyResultSet.getLong(HikariProxyResultSet.java) ~[HikariCP-3.4.5.jar:na]
    at org.hibernate.tool.schema.extract.internal.SequenceInformationExtractorLegacyImpl.resultSetStartValueSize(SequenceInformationExtractorLegacyImpl.java:129) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
    at org.hibernate.tool.schema.extract.internal.SequenceInformationExtractorLegacyImpl.extractMetadata(SequenceInformationExtractorLegacyImpl.java:59) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentImpl.sequenceInformationList(JdbcEnvironmentImpl.java:403) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentImpl.<init>(JdbcEnvironmentImpl.java:268) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
    at 

Answer 1

使用下面的自定义类并将其传递到属性中。

package com.abc.def;

import org.hibernate.dialect.PostgreSQL95Dialect;
import org.hibernate.tool.schema.extract.internal.SequenceInformationExtractorNoOpImpl;
import org.hibernate.tool.schema.extract.spi.SequenceInformationExtractor;

public class PostgresqlCustomDialect extends PostgreSQL95Dialect {

    public String getQuerySequencesString() {
        return "select * from all_sequences";
    }

    public SequenceInformationExtractor getSequenceInformationExtractor() {
        return SequenceInformationExtractorNoOpImpl.INSTANCE;
    }
}

将完全限定的类名放入以下属性中：

p.put("hibernate.dialect","com.abc.def.PostgresqlCustomDialect");

Answer 2

我的java spring boot java项目也遇到了这个问题。 我使用过 jpa hibernate 和 liquibase 我删除了 liquibase，问题就解决了