SQL查詢中的Orientdb引用

Question

我在OrientDB Studio中發現了SQL查詢的奇怪行爲（也在REST協議中重複）。

我的服務器版本是2.2.5

數據在我的課：

select * from name 

結果：

{ 
    "result": [ 
     { 
      "@type": "d", 
      "@rid": "#25:0", 
      "@version": 1, 
      "@class": "name", 
      "surname": "foo surname", 
      "name": "foo name" 
     }, 
     { 
      "@type": "d", 
      "@rid": "#26:0", 
      "@version": 1, 
      "@class": "name", 
      "surname": "bar surname", 
      "name": "bar name" 
     }, 
     { 
      "@type": "d", 
      "@rid": "#27:0", 
      "@version": 1, 
      "@class": "name", 
      "surname": "O'brien", 
      "name": "baz" 
     } 
    ], 
    "notification": "Query executed in 0.069 sec. Returned 3 record(s)" 
} 

，其屬性姓氏和名字是文本字段。

我在Studio中創建了一些SQL查詢：

select * from name WHERE surname='O\'brien' 

結果：

{ 
"result": [ 
    { 
     "@type": "d", 
     "@rid": "#27:0", 
     "@version": 1, 
     "@class": "name", 
     "surname": "O'brien", 
     "name": "baz" 
     } 
    ], 
"notification": "Query executed in 0.016 sec. Returned 1 record(s)" 

}

做工不錯。

下一頁：

select * from name WHERE NOT (surname='O\'brien') 

結果：

{ 
"result": [ 
    { 
     "@type": "d", 
     "@rid": "#25:0", 
     "@version": 1, 
     "@class": "name", 
     "surname": "foo surname", 
     "name": "foo name" 
    }, 
    { 
     "@type": "d", 
     "@rid": "#26:0", 
     "@version": 1, 
     "@class": "name", 
     "surname": "bar surname", 
     "name": "bar name" 
    }, 
    { 
     "@type": "d", 
     "@rid": "#27:0", 
     "@version": 1, 
     "@class": "name", 
     "surname": "O'brien", 
     "name": "baz" 
    } 
], 
"notification": "Query executed in 0.015 sec. Returned 3 record(s)" 

}

在這種情況下我獲得意想不到的第三結果。

下一頁：

select * from name WHERE (NOT (surname='bar surname')) 

結果：

{ 
    "result": [ 
     { 
      "@type": "d", 
      "@rid": "#25:0", 
      "@version": 1, 
      "@class": "name", 
      "surname": "foo surname", 
      "name": "foo name" 
     }, 
     { 
      "@type": "d", 
      "@rid": "#27:0", 
      "@version": 1, 
      "@class": "name", 
      "surname": "O'brien", 
      "name": "baz" 
     } 
    ], 
    "notification": "Query executed in 0.017 sec. Returned 2 record(s)" 
} 

看起來不錯。

下一頁：

select * from name WHERE (NOT (surname='O\'brien')) 

結果：

java.lang.NullPointerException 

下一頁：

select * from name WHERE (surname='O\'brien') 

結果：

Empty result 

我的問題 - 這是錯誤，或者我做錯了什麼？

這些查詢是查詢生成器的一部分，所以我需要了解如何在OrientDB括號中起作用。

感謝。

Answer 1

ODB ver2.2.12

使用不同類型的報價。

我的數據：

select from V

{ 
    "result": [ 
     { 
      "@type": "d", 
      "@rid": "#9:0", 
      "@version": 1, 
      "@class": "V", 
      "name": "O'Brian" 
     }, 
     { 
      "@type": "d", 
      "@rid": "#10:0", 
      "@version": 1, 
      "@class": "V", 
      "name": "Pippo" 
     } 
    ], 
    "notification": "Query executed in 0.013 sec. Returned 2 record(s)" 
} 

select from V where NOT (name = "O'Brian")

{ 
    "result": [ 
     { 
      "@type": "d", 
      "@rid": "#10:0", 
      "@version": 1, 
      "@class": "V", 
      "name": "Pippo" 
     } 
    ], 
    "notification": "Query executed in 0.023 sec. Returned 1 record(s)" 
}