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<td class="page-title-pattern-first-line " style="padding: 0; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiNmMyNzhhMzIwZWI3NGE0NzgyM2ExZThlNTRhZDVkMzMiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-14105?atlOrigin=eyJpIjoiNmMyNzhhMzIwZWI3NGE0NzgyM2ExZThlNTRhZDVkMzMiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-8e31b732-379a-44f5-a4f5-d03fd2f8b6dc" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-14105?atlOrigin=eyJpIjoiNmMyNzhhMzIwZWI3NGE0NzgyM2ExZThlNTRhZDVkMzMiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">HHH-14105</a> </td>
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<td style="vertical-align: top;; padding: 0; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://hibernate.atlassian.net/browse/HHH-14105?atlOrigin=eyJpIjoiNmMyNzhhMzIwZWI3NGE0NzgyM2ExZThlNTRhZDVkMzMiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">JoinColumn for composite key requires alphabetical order</a> </span> </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Change By:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="m.mayorov" style="color:#6c797f;; color: #3b73af; text-decoration: none" id="email_m.mayorov" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5cd931e24401890dcab39b3a"> Mikhail Mayorov </a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0; border-collapse: collapse; padding: 0 0 10px"> <span class="diffcontext">h1. Description<br><br>In the following example JoinColumn annotations are order sensitive:<br><br>Schema - two tables, one of them has composite key *(name, last_name)*:<br></span> <span class="diffaddedchars" style="background-color:#ddfade;"><br></span> <span class="diffcontext">{code:sql}</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"><br></span> <span class="diffcontext">create table product ( id int primary key not null, name varchar(255) not null, last_name uuid not null );<br>create table profile ( name varchar(255) not null, last_name uuid not null, age int not null);<br>alter table profile add constraint profile_pkey primary key (name, last_name);</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"><br></span> <span class="diffcontext">{code}<br><br>Entities:<br><br>{code:java}</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"><br></span> <span class="diffcontext">@Entity<br>@Table<br>@NoArgsConstructor<br>@AllArgsConstructor<br>@Data<br>public class Profile {<br><br> @EmbeddedId<br> private Id id;<br> private int age;<br><br><br> @Embeddable<br> @NoArgsConstructor<br> @AllArgsConstructor<br> @Data<br> public static class Id implements Serializable {<br> private String name;<br> private UUID lastName;<br> }<br>}<br><br>@Entity<br>@Table<br>@NoArgsConstructor<br>@AllArgsConstructor<br>@Data<br>public class Product {<br> @Id<br> private int id;<br><br> @ManyToOne(fetch = FetchType.LAZY, optional = false)<br> @JoinColumn(name = "name")<br> @JoinColumn(name = "last_name")<br> private Profile profile;<br>}</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"><br></span> <span class="diffcontext">{code}<br><br>In Product entity it is impossible to specify a relation with the order of *name* and *last_name*. After debugging I've found it must be alphabetically sorted, i.e. *last_name* and *name*.<br>It would be better to make JoinColumn order independent or depend on natural order at worst, because the order of *name* and *last_name* is everywhere: in schema.sql, in composite key Product.Id. <br>Why does it require alphabetical order?<br><br>h1. Environment<br><br>Spring Boot 2.3.1.RELEASE<br>Hibernate 5.4.17.Final<br>Postgres 42.2.14<br><br>h1. How to reproduce <br><br></span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;">#</span> <span class="diffaddedchars" style="background-color:#ddfade;">1)</span> <span class="diffcontext"> Download</span> <span class="diffaddedchars" style="background-color:#ddfade;"> <br><br></span> <span class="diffcontext"> [^joincolumn_demo.zip]</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"> <br># `</span> <span class="diffaddedchars" style="background-color:#ddfade;"><br><br>2) {{</span> <span class="diffcontext">./mvnw test</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;">`</span> <span class="diffaddedchars" style="background-color:#ddfade;">}}</span> <span class="diffcontext"> - this run should pass<br></span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;">#</span> <span class="diffaddedchars" style="background-color:#ddfade;"><br>3)</span> <span class="diffcontext"> Switch JoinColumn annotations in src/main/java/com/example/demo/Product.java</span> <span class="diffaddedchars" style="background-color:#ddfade;"> to natural order *name, last_name*</span> <span class="diffcontext"> the following way:<br></span> <span class="diffaddedchars" style="background-color:#ddfade;"><br></span> <span class="diffcontext">{code:java}</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"><br></span> <span class="diffcontext"> @ManyToOne(fetch = FetchType.LAZY, optional = false)<br> @JoinColumn(name = "name")<br> @JoinColumn(name = "last_name")<br> private Profile profile;</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"><br></span> <span class="diffcontext">{code}<br></span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"># `</span> <span class="diffaddedchars" style="background-color:#ddfade;"><br>4){{</span> <span class="diffcontext">./mvnw test</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;">`</span> <span class="diffaddedchars" style="background-color:#ddfade;">}}</span> <span class="diffcontext"><br><br>As a result it fails with the error:<br></span> <span class="diffaddedchars" style="background-color:#ddfade;"><br></span> <span class="diffcontext">{noformat}</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"><br></span> <span class="diffcontext">ERROR: column "last_name" is of type uuid but expression is of type character varying<br> Hint: You will need to rewrite or cast the expression</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"><br></span> <span class="diffcontext">{noformat}</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"><br></span> </td>
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