Can we constrain LiQL WHERE field != '' or empty or null or what have you?
I know that the constraints on LiQL queries are pretty limited but is there a way to search for something you wear that thing is not empty or "" or null or undefined?
For example:
SELECT subject FROM messages WHERE subject != ''returns
{
"status" : "error",
"message" : "Invalid query syntax",
"data" : {
"type" : "error_data",
"code" : 604,
"developer_message" : "'!=' is not a valid operator for the field 'subject' of the object 'messages'. The valid operators are: matches in: SELECT subject FROM messages WHERE subject != ''",
"more_info" : ""
},
"metadata" : { }
}
Even though on https://developer.khoros.com/khoroscommunitydevdocs/docs/using-liql it states that != is a valid operator.
Is that documentation wrong or is there a esoteric way to use that which is different than the above query?
To expand on that a little, if you look at each constraint here messages (khoros.com) each one has a different list of supported operators.
So, for example author.id you can use !=
But subject you can't
