This function is not supported in later versions. Use Cold data archiving instead.
Resets the AccessKey secret on a trajectory object for accessing the Object Storage Service (OSS) bucket that stores its data.
Syntax
trajectory ST_SetAkSecret(trajectory traj, text aksecret, bool checkvalid default true);Parameters
| Parameter | Description |
|---|---|
traj | The trajectory object. |
aksecret | The AccessKey secret used to access the OSS bucket. |
checkvalid | Specifies whether to validate the AccessKey secret by testing bucket access. Default value: true. If the access test fails, an error is returned. |
Description
When reading trajectory data from an OSS bucket, an AccessKey pair is required to authenticate access. An AccessKey pair consists of an AccessKey ID (analogous to a username) and an AccessKey secret (analogous to a password). ST_SetAkSecret updates the AccessKey secret stored on the trajectory object.
Example
SELECT ST_SetAkSecret(traj, '<OSS_PWD>') FROM trajs;Output:
st_setaksecret
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{"trajectory":{"version":1,"type":"STPOINT","leafcount":6,"start_time":"Sat Jan 01 03:15:42 2000","end_time":"Sat Jan 01 05:16:43 2000","spatial":"LINESTRING(2 2 0,33.042158099636 36.832684322819 0,47.244002354518 47.230026333034 0,64.978971942887 60.618813472986 0,77.621717839502 78.012496630661 0,80 78 0)","timeline":["Sat Jan 01 03:15:42 2000","Sat Jan 01 03:39:54 2000","Sat Jan 01 04:04:06 2000","Sat Jan 01 04:28:18 2000","Sat Jan 01 04:52:31 2000","Sat Jan 01 05:16:43 2000"]}}
{"trajectory":{"version":1,"type":"STPOINT","leafcount":6,"start_time":"Sat Jan 01 03:15:42 2000","end_time":"Sat Jan 01 05:16:43 2000","spatial":"LINESTRING(2 2 0,33.042158099636 36.832684322819 0,47.244002354518 47.230026333034 0,64.978971942887 60.618813472986 0,77.621717839502 78.012496630661 0,80 78 0)","timeline":["Sat Jan 01 03:15:42 2000","Sat Jan 01 03:39:54 2000","Sat Jan 01 04:04:06 2000","Sat Jan 01 04:28:18 2000","Sat Jan 01 04:52:31 2000","Sat Jan 01 05:16:43 2000"]}}
{"trajectory":{"version":1,"type":"STPOINT","leafcount":6,"start_time":"Sat Jan 01 03:15:42 2000","end_time":"Sat Jan 01 05:16:43 2000","spatial":"LINESTRING(2 2,33.042158099636 36.832684322819,47.244002354518 47.230026333034,64.978971942887 60.618813472986,77.621717839502 78.012496630661,80 78)","timeline":["Sat Jan 01 03:15:42 2000","Sat Jan 01 03:39:54 2000","Sat Jan 01 04:04:06 2000","Sat Jan 01 04:28:18 2000","Sat Jan 01 04:52:31 2000","Sat Jan 01 05:16:43 2000"]}}
TRAJECTORY EMPTY
(4 rows)