Issue 499: support MySQL "UNIQUE KEY (ID) USING BTREE" constraint syntax

h2/src/docsrc/html/changelog.html

@@ -62,6 +62,7 @@ Change Log
 </li><li>Issue 487: support the MySQL "SET foreign_key_checks = 0" command
 </li><li>Issue 490: support MySQL "USING BTREE" index declaration
 </li><li>Issue 485: Database get corrupted when column is renamed for which check constraint was defined inside create table statement.
+</li><li>Issue 499: support MySQL "UNIQUE KEY (ID) USING BTREE" constraint syntax
 </li></ul>
 
 <h2>Version 1.3.172 (2013-05-25)</h2>

h2/src/main/org/h2/command/Parser.java

@@ -5189,6 +5189,10 @@ public class Parser {
                 String indexName = readIdentifierWithSchema();
                 command.setIndex(getSchema().findIndex(session, indexName));
             }
+            // MySQL compatibility
+            if (readIf("USING")) {
+                read("BTREE");
+            }
         } else if (readIf("FOREIGN")) {
             command = new AlterTableAddConstraint(session, schema, ifNotExists);
             command.setType(CommandInterface.ALTER_TABLE_ADD_CONSTRAINT_REFERENTIAL);

h2/src/test/org/h2/test/db/TestCompatibility.java

@@ -267,6 +267,7 @@ public class TestCompatibility extends TestBase {
         stat.execute("CREATE TABLE TEST_5(ID INT PRIMARY KEY) ENGINE=InnoDb auto_increment=3 default charset=UTF8");
         stat.execute("CREATE TABLE TEST_6(ID INT PRIMARY KEY) ENGINE=InnoDb auto_increment=3 charset=UTF8");
         stat.execute("CREATE TABLE TEST_7(ID INT, KEY TEST_7_IDX(ID) USING BTREE)");
+        stat.execute("CREATE TABLE TEST_8(ID INT, UNIQUE KEY TEST_8_IDX(ID) USING BTREE)");
 
         // this maps to SET REFERENTIAL_INTEGRITY TRUE/FALSE
         stat.execute("SET foreign_key_checks = 0");