- nebula 版本:2.0
2.0版本查询数据为空报BAD_TYPE错误有办法避免吗?
语句大体如下:
go 0 to 10 steps from 33271944 over parent where $$.knowledgePoint.stage == 245555925719450368 and \
$$.knowledgePoint.subject == 'math' and $$.knowledgePoint.listingStatus >= 0 \
YIELD $$.knowledgePoint.vertexType, $$.knowledgePoint.listingStatus, $$.knowledgePoint.id, \
$$.knowledgePoint.listedVersion, $$.knowledgePoint.reviewVersion, $$.knowledgePoint.reviewStatus, \
$$.knowledgePoint.remark, $$.knowledgePoint.currentReason, $$.knowledgePoint.lastUpdateTime, \
$$.knowledgePoint.level, $$.knowledgePoint.kpOrderValue, $$.knowledgePoint.localizedInfo, \
$^.knowledgePoint.id as parent;
当knowledgePoint.id为空时报报BAD_TYPE错误
但是1.X不会报错,直接返回空