| name | data type | description |
|---|---|---|
| expression | array of XExprColumn |
Example
{
"expression" : [ {
"_type" : "...",
"expr_spec" : [ {
"start_time" : 12345,
"expr" : "...",
"end_time" : 12345
}, {
"start_time" : 12345,
"expr" : "...",
"end_time" : 12345
} ],
"name" : "...",
"tags" : {
"property" : [ { }, { } ]
}
}, {
"_type" : "...",
"expr_spec" : [ {
"start_time" : 12345,
"expr" : "...",
"end_time" : 12345
}, {
"start_time" : 12345,
"expr" : "...",
"end_time" : 12345
} ],
"name" : "...",
"tags" : {
"property" : [ { }, { } ]
}
} ]
}