PostgreSQL 8.4.8 JPA id自动生成策略
//PostgreSQL, version: 8.4.8数据库的ID生成策略@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "adrole_seq_gene")@SequenceGenerator(name = "adrole_seq_gene", sequenceName = "ad_adrole_seq", allocationSize = 1)?
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