addColumn(t, "CONSTRAINT_CATALOG", SQL_IDENTIFIER);
addColumn(t, "CONSTRAINT_SCHEMA", SQL_IDENTIFIER);
addColumn(t, "CONSTRAINT_NAME", SQL_IDENTIFIER); // not null
addColumn(t, "CHECK_CLAUSE", CHARACTER_DATA); // not null
HsqlName name = HsqlNameManager.newInfoSchemaObjectName(
sysTableHsqlNames[CHECK_CONSTRAINTS].name, false,
SchemaObject.INDEX);
t.createPrimaryKeyConstraint(name, new int[] {
2, 1, 0