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[jOOQ/jOOQ#9534] Add support ALTER TABLE .. DROP UNIQUE <name>

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This commit is contained in:
Lukas Eder 2019-11-12 17:04:31 +01:00
parent d8b8977339
commit 86e7fa40b4
2 changed files with 65 additions and 0 deletions
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40
jOOQ/src/main/java/org/jooq/AlterTableStep.java
View File

@ -638,6 +638,46 @@ public interface AlterTableStep {
@Support({ CUBRID, DERBY, FIREBIRD, H2, HSQLDB, MARIADB, MYSQL, POSTGRES })
AlterTableDropStep dropPrimaryKey(String constraint);
/**
* Add a <code>DROP UNIQUE</code> clause to the <code>ALTER TABLE</code>
* statement.
* <p>
* Some dialects (e.g. {@link SQLDialect#COCKROACHDB}) may not be able to
* drop constraints by name. If users specify the constraint type
* <em>and</em> the name, however, then the syntax can be emulated, e.g.
* using <code>DROP INDEX .. CASCADE</code>.
*/
@Support({ CUBRID, DERBY, FIREBIRD, H2, HSQLDB, MARIADB, MYSQL, POSTGRES })
AlterTableDropStep dropUnique(Constraint constraint);
/**
* Add a <code>DROP UNIQUE</code> clause to the <code>ALTER TABLE</code>
* statement.
* <p>
* Some dialects (e.g. {@link SQLDialect#COCKROACHDB}) may not be able to
* drop constraints by name. If users specify the constraint type
* <em>and</em> the name, however, then the syntax can be emulated, e.g.
* using <code>DROP INDEX .. CASCADE</code>.
*
* @see DSL#constraint(Name)
*/
@Support({ CUBRID, DERBY, FIREBIRD, H2, HSQLDB, MARIADB, MYSQL, POSTGRES })
AlterTableDropStep dropUnique(Name constraint);
/**
* Add a <code>DROP UNIQUE</code> clause to the <code>ALTER TABLE</code>
* statement.
* <p>
* Some dialects (e.g. {@link SQLDialect#COCKROACHDB}) may not be able to
* drop constraints by name. If users specify the constraint type
* <em>and</em> the name, however, then the syntax can be emulated, e.g.
* using <code>DROP INDEX .. CASCADE</code>.
*
* @see DSL#constraint(String)
*/
@Support({ CUBRID, DERBY, FIREBIRD, H2, HSQLDB, MARIADB, MYSQL, POSTGRES })
AlterTableDropStep dropUnique(String constraint);
/**
* Add a <code>DROP FOREIGN KEY</code> clause to the <code>ALTER TABLE</code>
* statement.

25
jOOQ/src/main/java/org/jooq/impl/AlterTableImpl.java
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@ -76,6 +76,7 @@ import static org.jooq.impl.Cascade.CASCADE;
import static org.jooq.impl.Cascade.RESTRICT;
import static org.jooq.impl.ConstraintType.FOREIGN_KEY;
import static org.jooq.impl.ConstraintType.PRIMARY_KEY;
import static org.jooq.impl.ConstraintType.UNIQUE;
import static org.jooq.impl.DSL.begin;
import static org.jooq.impl.DSL.commentOnTable;
import static org.jooq.impl.DSL.condition;
@ -826,6 +827,23 @@ final class AlterTableImpl extends AbstractRowCountQuery implements
return dropPrimaryKey(constraint(constraint));
}
@Override
public final AlterTableImpl dropUnique(Constraint constraint) {
dropConstraint = constraint;
dropConstraintType = UNIQUE;
return this;
}
@Override
public final AlterTableImpl dropUnique(Name constraint) {
return dropUnique(constraint(constraint));
}
@Override
public final AlterTableImpl dropUnique(String constraint) {
return dropUnique(constraint(constraint));
}
@Override
public final AlterTableImpl dropForeignKey(Constraint constraint) {
dropConstraint = constraint;
@ -1009,6 +1027,13 @@ final class AlterTableImpl extends AbstractRowCountQuery implements