support @view on Informix

Author: gavinking

hibernate-community-dialects/src/main/java/org/hibernate/community/dialect/InformixDialect.java

@@ -1014,4 +1014,8 @@ public boolean supportsRowValueConstructorSyntaxInInList() {
 		return false;
 	}
 
+	@Override
+	public boolean requiresColumnListInCreateView() {
+		return true;
+	}
 }

hibernate-core/src/main/java/org/hibernate/dialect/Dialect.java

@@ -2927,12 +2927,23 @@ public String getCrossReferenceParentTableFilter(){
 	 * The syntax used to add a primary key constraint to a table.
 	 *
 	 * @param constraintName The name of the PK constraint.
-	 * @return The "add PK" fragment
+	 *
+	 * @apiNote Currently unused, since we never use {@code alter table}
+	 * to add a primary key constraint.
 	 */
 	public String getAddPrimaryKeyConstraintString(String constraintName) {
 		return " add constraint " + constraintName + " primary key ";
 	}
 
+	/**
+	 * Is a list of column names required in the {@code create view} statement?
+	 *
+	 * @since 7.1
+	 */
+	public boolean requiresColumnListInCreateView() {
+		return false;
+	}
+
 	/**
 	 * The {@link SqmMultiTableMutationStrategy} to use when not specified by
 	 * {@link org.hibernate.query.spi.QueryEngineOptions#getCustomSqmMultiTableMutationStrategy}.

hibernate-core/src/main/java/org/hibernate/tool/schema/internal/StandardTableExporter.java

@@ -33,6 +33,7 @@
 import org.hibernate.type.SqlTypes;
 
 import static java.util.Collections.addAll;
+import static java.util.Comparator.comparing;
 import static org.hibernate.internal.util.StringHelper.EMPTY_STRINGS;
 import static org.hibernate.tool.schema.internal.ColumnDefinitions.appendColumn;
 
@@ -64,8 +65,26 @@ public String[] getSqlCreateStrings(
 			final String viewQuery = table.getViewQuery();
 			if ( viewQuery != null ) {
 				createTable.append("create view ")
-						.append( formattedTableName )
-						.append(" as ")
+						.append( formattedTableName );
+				if ( dialect.requiresColumnListInCreateView() ) {
+					createTable.append(" (");
+					var sortedColumns =
+							table.getColumns().stream()
+									.sorted( comparing( c -> viewQuery.indexOf( c.getQuotedName( dialect ) ) ) )
+									.toList();
+					boolean isFirst = true;
+					for ( Column column : sortedColumns ) {
+						if ( isFirst ) {
+							isFirst = false;
+						}
+						else {
+							createTable.append( ", " );
+						}
+						createTable.append( column.getQuotedName( dialect ) );
+					}
+					createTable.append(")");
+				}
+				createTable.append(" as ")
 						.append( viewQuery );
 			}
 			else {