arangosh> stmt.explain({ optimizer: { rules: [ "-all" ] } });
{
"plan" : {
"nodes" : [
{
"type" : "SingletonNode",
"dependencies" : [ ],
"id" : 1,
"estimatedCost" : 1,
"estimatedNrItems" : 1
},
{
"type" : "EnumerateCollectionNode",
"dependencies" : [
1
],
"id" : 2,
"estimatedCost" : 102,
"estimatedNrItems" : 100,
"random" : false,
"indexHint" : {
"forced" : false,
"type" : "none"
},
"outVariable" : {
"id" : 0,
"name" : "i"
},
"projections" : [ ],
"producesResult" : true,
"database" : "_system",
"collection" : "test",
"satellite" : false
},
{
"type" : "CalculationNode",
"dependencies" : [
2
],
"id" : 3,
"estimatedCost" : 202,
"estimatedNrItems" : 100,
"expression" : {
"type" : "compare >",
"typeID" : 29,
"subNodes" : [
{
"type" : "attribute access",
"typeID" : 35,
"name" : "value",
"subNodes" : [
{
"type" : "reference",
"typeID" : 45,
"name" : "i",
"id" : 0
}
]
},
{
"type" : "value",
"typeID" : 40,
"value" : 97,
"vType" : "int",
"vTypeID" : 2
}
]
},
"outVariable" : {
"id" : 2,
"name" : "1"
},
"canThrow" : false,
"expressionType" : "simple"
},
{
"type" : "FilterNode",
"dependencies" : [
3
],
"id" : 4,
"estimatedCost" : 302,
"estimatedNrItems" : 100,
"inVariable" : {
"id" : 2,
"name" : "1"
}
},
{
"type" : "CalculationNode",
"dependencies" : [
4
],
"id" : 5,
"estimatedCost" : 402,
"estimatedNrItems" : 100,
"expression" : {
"type" : "attribute access",
"typeID" : 35,
"name" : "value",
"subNodes" : [
{
"type" : "reference",
"typeID" : 45,
"name" : "i",
"id" : 0
}
]
},
"outVariable" : {
"id" : 4,
"name" : "3"
},
"canThrow" : false,
"expressionType" : "attribute"
},
{
"type" : "SortNode",
"dependencies" : [
5
],
"id" : 6,
"estimatedCost" : 1066.3856189774724,
"estimatedNrItems" : 100,
"elements" : [
{
"inVariable" : {
"id" : 4,
"name" : "3"
},
"ascending" : true
}
],
"stable" : false,
"limit" : 0,
"strategy" : "standard"
},
{
"type" : "CalculationNode",
"dependencies" : [
6
],
"id" : 7,
"estimatedCost" : 1166.3856189774724,
"estimatedNrItems" : 100,
"expression" : {
"type" : "attribute access",
"typeID" : 35,
"name" : "value",
"subNodes" : [
{
"type" : "reference",
"typeID" : 45,
"name" : "i",
"id" : 0
}
]
},
"outVariable" : {
"id" : 6,
"name" : "5"
},
"canThrow" : false,
"expressionType" : "attribute"
},
{
"type" : "ReturnNode",
"dependencies" : [
7
],
"id" : 8,
"estimatedCost" : 1266.3856189774724,
"estimatedNrItems" : 100,
"inVariable" : {
"id" : 6,
"name" : "5"
},
"count" : true
}
],
"rules" : [ ],
"collections" : [
{
"name" : "test",
"type" : "read"
}
],
"variables" : [
{
"id" : 6,
"name" : "5"
},
{
"id" : 4,
"name" : "3"
},
{
"id" : 2,
"name" : "1"
},
{
"id" : 0,
"name" : "i"
}
],
"estimatedCost" : 1266.3856189774724,
"estimatedNrItems" : 100,
"initialize" : true,
"isModificationQuery" : false
},
"warnings" : [ ],
"stats" : {
"rulesExecuted" : 2,
"rulesSkipped" : 34,
"plansCreated" : 1
},
"cacheable" : true
}