+ | LESS { int64_t value; } value=timestamp
+ { maker.put(matchBefore); maker.put(value); }
+ | GT { int64_t value; } value=timestamp
+ { maker.put(matchAfter); maker.put(value); }
+ | LE { int64_t value; } value=timestamp
+ { maker.put(matchOnOrBefore); maker.put(value); }
+ | GE { int64_t value; } value=timestamp
+ { maker.put(matchOnOrAfter); maker.put(value); }