HHH-7472 Index merge

gistfile1.txt

public class Index extends AbstractConstraint implements Constraint {
	protected Index(Table table, String name) {
		super( table, name );
	}


	@Override
	public String getExportIdentifier() {
		StringBuilder sb = new StringBuilder( getTable().getLoggableValueQualifier());
		sb.append( ".IDX" );
		for ( Column column : getColumns() ) {
			sb.append( '_' ).append( column.getColumnName().getText() );
		}
		return sb.toString();
	}

<<<<<<< HEAD
	public String[] sqlCreateStrings(Dialect dialect) {
		return new String[] {
				buildSqlCreateIndexString(
						dialect, getOrGenerateName(), getTable(), getColumns(), false
				)
		};
	}

	public static String buildSqlCreateIndexString(
			Dialect dialect,
			String name,
			TableSpecification table,
			Iterable<Column> columns,
			boolean unique
	) {
		StringBuilder buf = new StringBuilder( "create" )
				.append( unique ?
						" unique" :
						"" )
				.append( " index " )
				.append( dialect.qualifyIndexName() ?
						name :
						StringHelper.unqualify( name ) )
				.append( " on " )
				.append( table.getQualifiedName( dialect ) )
				.append( " (" );
		boolean first = true;
		for ( Column column : columns ) {
			if ( first ) {
				first = false;
			}
			else {
				buf.append( ", " );
			}
			buf.append( ( column.getColumnName().getText( dialect ) ) );
		}
		buf.append( ")" );
		return buf.toString();
	}

=======
>>>>>>> HHH-7472 - Introduce a "schema management" service : externalized exporters
	@Override
	protected String getGeneratedNamePrefix() {
		return "IDX";
	}

	public String sqlConstraintStringInAlterTable(Dialect dialect) {
		StringBuilder buf = new StringBuilder( " index (" );
		boolean first = true;
		for ( Column column : getColumns() ) {
			if ( first ) {
				first = false;
			}
			else {
				buf.append( ", " );
			}
			buf.append( column.getColumnName().getText( dialect ) );
		}
		return buf.append( ')' ).toString();
	}
}