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Posted to notifications@couchdb.apache.org by GitBox <gi...@apache.org> on 2020/07/30 07:29:16 UTC
[GitHub] [couchdb-documentation] hereisok opened a new issue #579: error in string sorting
hereisok opened a new issue #579:
URL: https://github.com/apache/couchdb-documentation/issues/579
hi, The couchdb version I use is 3.1.0.
Below is my document in the database,
|_id|group_id|msg_id|
| -- | -- | --
H-jqPgaMjkaqpmZsyX97_uMOtD3rsYPcABjz8= | lEJXOvV-jqPgaMjkaqpmZsyX97_uMOtD3rsYPcABjz8= | H |
| h-jqPgaMjkaqpmZsyX97_uMOtD3rsYPcABjz8= | lEJXOvV-jqPgaMjkaqpmZsyX97_uMOtD3rsYPcABjz8= | h |
| b-lEJXOvV-jqPgaMjkaqpmZsyX97_uMOtD3rsYPcABjz8= | lEJXOvV-jqPgaMjkaqpmZsyX97_uMOtD3rsYPcABjz8= | b |
| A-lEJXOvV-jqPgaMjkaqpmZsyX97_uMOtD3rsYPcABjz8= | lEJXOvV-jqPgaMjkaqpmZsyX97_uMOtD3rsYPcABjz8= | A |
| a-lEJXOvV-jqPgaMjkaqpmZsyX97_uMOtD3rsYPcABjz8= | lEJXOvV-jqPgaMjkaqpmZsyX97_uMOtD3rsYPcABjz8= | a |
| 7ewRhpLu5-567jqPgaMjkaqpmZsyX97_uMOtD3rsYPcABjz8= | lEJXOvV-jqPgaMjkaqpmZsyX97_uMOtD3rsYPcABjz8= | 7ewRhpLu5 |
| 7ewRHPJZN-567jqPgaMjkaqpmZsyX97_uMOtD3rsYPcABjz8= | lEJXOvV-jqPgaMjkaqpmZsyX97_uMOtD3rsYPcABjz8= | 7ewRHPJZN
I created an index:
```json
{
"index": {
"fields": ["group_id", "msg_id"]
},
"name": "msg-id-index",
"type": "json",
"ddoc": "_design/index_msg-id-index"
}
```
Then sort query based on msg_id. Below is the result of my query.
According to couchdb's [documentation,](https://docs.couchdb.org/en/stable/ddocs/views/collation.html#collation-specification) I know that the order of "H" is higher than "h", but why is the order of "7ewRhpLu5" higher than "7ewRHPJZN"?
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