unique method

ColumnDefinition unique([
  1. String? constraintName
])

Set column as UNIQUE

Implementation

ColumnDefinition unique([String? constraintName]) {
  if (constraintName != null) {
    _unique = false;
    _uniqueConstraintName = constraintName;
    _schema.addCompositeUniqueConstraint(constraintName, [_name]);
  } else {
    _unique = true;
    _uniqueConstraintName = null;
  }
  return this;
}