in src/main/java/org/apache/skywalking/banyandb/v1/client/BanyanDBClient.java [506:510]
public void define(IndexRuleBinding indexRuleBinding) throws BanyanDBException {
ZonedDateTime beginAt = indexRuleBinding.getBeginAt() == Timestamp.getDefaultInstance() ? ZonedDateTime.now() : TimeUtils.parseTimestamp(indexRuleBinding.getBeginAt());
ZonedDateTime expireAt = indexRuleBinding.getExpireAt() == Timestamp.getDefaultInstance() ? DEFAULT_EXPIRE_AT : TimeUtils.parseTimestamp(indexRuleBinding.getExpireAt());
this.define(indexRuleBinding, beginAt, expireAt);
}