当我运行此查询时,我遇到了此类错误
select * from raw_2 where ip NOT IN (select * from raw_1);
org.apache.spark.sql.AnalysisException:
查询中不支持的语言功能:
select * from raw_2 where ip NOT IN (select * from raw_1)
TOK_QUERY 1, 0,24, 14
TOK_FROM 1, 4,6, 14
TOK_TABREF 1, 6,6, 14
TOK_TABNAME 1, 6,6, 14
raw_2 1, 6,6, 14
TOK_INSERT 0, -1,24, 0
TOK_DESTINATION 0, -1,-1, 0
TOK_DIR 0, -1,-1, 0
TOK_TMP_FILE 0, -1,-1, 0
TOK_SELECT 0, 0,2, 0
TOK_SELEXPR 0, 2,2, 0
TOK_ALLCOLREF 0, 2,2, 0
TOK_WHERE 1, 8,24, 29
NOT 1, 10,24, 29
TOK_SUBQUERY_EXPR 1, 14,10, 33
TOK_SUBQUERY_OP 1, 14,14, 33
IN 1, 14,14, 33
TOK_QUERY 1, 16,24, 51
TOK_FROM 1, 21,23, 51
TOK_TABREF 1, 23,23, 51
TOK_TABNAME 1, 23,23, 51
raw_1 1, 23,23, 51
TOK_INSERT 0, -1,19, 0
TOK_DESTINATION 0, -1,-1, 0
TOK_DIR 0, -1,-1, 0
TOK_TMP_FILE 0, -1,-1, 0
TOK_SELECT 0, 17,19, 0
TOK_SELEXPR 0, 19,19, 0
TOK_ALLCOLREF 0, 19,19, 0
TOK_TABLE_OR_COL 1, 10,10, 26
ip 1, 10,10, 26
scala.NotImplementedError:没有ASTNode类型的解析规则:817,text:
TOK_SUBQUERY_EXPR :
TOK_SUBQUERY_EXPR 1, 14,10, 33
TOK_SUBQUERY_OP 1, 14,14, 33
IN 1, 14,14, 33
TOK_QUERY 1, 16,24, 51
TOK_FROM 1, 21,23, 51
TOK_
答案 0 :(得分:5)
Spark 2.0.0 + :
因为2.0.0 Spark支持全范围的子查询。有关详细信息,请参阅Does SparkSQL support subquery?。
Spark< 2.0.0 强>
Spark是否支持子查询?
一般来说确实如此。构造如SELECT * FROM (SELECT * FROM foo WHERE bar = 1) as tmp
在Spark SQL中完全有效的查询。
据the Catalyst parser source我所知,它不支持NOT IN
子句中的内部查询:
| termExpression ~ (NOT ~ IN ~ "(" ~> rep1sep(termExpression, ",")) <~ ")" ^^ {
case e1 ~ e2 => Not(In(e1, e2))
}
仍然可以使用外连接,然后使用过滤器来获得相同的效果。