Question

我实际上是在尝试使用pyorient进行sql-batch插入。

我实际上在Edge（in，out）上有唯一索引以防止重复，因为我找不到UPSERT Edge的方法。

session_orientdb.command("CREATE INDEX indexRegroupe ON Regroupe (out, in) UNIQUE")

如果我每100行发送一次命令，并且如果一行因为orientdb找到duplicateIndex（in，out）而抛出一个预期，那么整个100行都不会插入。

所以这是我的循环：

 i = 0
 cmd = "BEGIN;"
 # Loop untill receiving the "poison pill" item (meaning : no more element to read)
 poison_pill = False
 while not(poison_pill):
     queries = p_queue.get()
     # Manage poison pill
     if queries is None:
         poison_pill = True
         p_queue.task_done()
         cmd += "commit;"
         session_orientdb.batch(cmd)
     else:
         for query in queries:
             i += 1
             cmd += query + ";"
     if (i > 100):
         i = 0
         cmd += "COMMIT retry 20;"
         try:
             session_orientdb.batch(cmd)
         except Exception as e:
             print (e)
             cmd = "BEGIN;"

查询类似于：

[
'UPDATE Expression SET libelle = "internat fille" UPSERT WHERE libelle = "internat fille";',
'CREATE EDGE Regroupe FROM (SELECT FROM Ontologie WHERE id = "40") to (SELECT FROM Expression WHERE libelle = "internat fille") set score=8;',
'UPDATE Cri SET id = "INTERNAT", libelle = "internat" UPSERT WHERE id = "INTERNAT";',
'CREATE EDGE Identifie FROM (SELECT FROM Expression WHERE libelle = "internat fille") to (SELECT FROM Cri WHERE id = "INTERNAT");'
]

我该怎么办？

Answer 1

你应该使用条件if

实施例

begin
let a= select from Regroupe where out=#9:0 and in=#10:0
if($a.size()>0){
    // edge exists so do other query
}
return $a

希望它有所帮助。

批量插入的例外情况

1 个答案: