Include N1QL(SQL) statement within the Explain plan.

Explain has all the other info about the statement, except the statement itself.
It's a bit easier to collect the explain in a script if the statement is also available within the explain.

cbq> explain select C_STATE, C_CREDIT, avg(C_CREDIT_LIM) as AVG_CR_LIMIT from CUSTOMER group by C_STATE, C_CREDIT ORDER BY AVG_CR}
{
"requestID": "b9c8490c-ae00-4cb0-a35f-84292ed9864b",
"signature": "json",
"results": [
{
"#operator": "Sequence",
"~children": [
{
"#operator": "Sequence",
"~children": [

{ "#operator": "PrimaryScan", "index": "#primary", "keyspace": "CUSTOMER", "namespace": "default", "using": "view" }

,
{
"#operator": "Parallel",
"~child": {
"#operator": "Sequence",
"~children": [

{ "#operator": "Fetch", "keyspace": "CUSTOMER", "namespace": "default" }

,

{ "#operator": "InitialGroup", "aggregates": [ "avg((`CUSTOMER`.`C_CREDIT_LIM`))" ], "group_keys": [ "(`CUSTOMER`.`C_STATE`)", "(`CUSTOMER`.`C_CREDIT`)" ] }

,

{ "#operator": "IntermediateGroup", "aggregates": [ "avg((`CUSTOMER`.`C_CREDIT_LIM`))" ], "group_keys": [ "(`CUSTOMER`.`C_STATE`)", "(`CUSTOMER`.`C_CREDIT`)" ] }

]
}
},

{ "#operator": "IntermediateGroup", "aggregates": [ "avg((`CUSTOMER`.`C_CREDIT_LIM`))" ], "group_keys": [ "(`CUSTOMER`.`C_STATE`)", "(`CUSTOMER`.`C_CREDIT`)" ] }

,

{ "#operator": "FinalGroup", "aggregates": [ "avg((`CUSTOMER`.`C_CREDIT_LIM`))" ], "group_keys": [ "(`CUSTOMER`.`C_STATE`)", "(`CUSTOMER`.`C_CREDIT`)" ] }

,
{
"#operator": "Parallel",
"~child": {
"#operator": "Sequence",
"~children": [
{
"#operator": "InitialProject",
"result_terms": [

{ "expr": "(`CUSTOMER`.`C_STATE`)" }

,

{ "expr": "(`CUSTOMER`.`C_CREDIT`)" }

,

{ "as": "AVG_CR_LIMIT", "expr": "avg((`CUSTOMER`.`C_CREDIT_LIM`))" }

]
}
]
}
}
]
},
{
"#operator": "Order",
"sort_terms": [

{ "desc": true, "expr": "`AVG_CR_LIMIT`" }

]
},
{
"#operator": "Parallel",
"~child":

{ "#operator": "FinalProject" }

}
]
}
],
"status": "success",
"metrics":

{ "elapsedTime": "12.271111ms", "executionTime": "12.207359ms", "resultCount": 1, "resultSize": 4762 }

}

cbq>