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|
// Cannot implicitly shard accessed collections because unsupported use of sharded collection
// for target collection of $lookup and $graphLookup.
// @tags: [assumes_unsharded_collection]
// In MongoDB 3.4, $graphLookup was introduced. In this file, we test the error cases.
load("jstests/aggregation/extras/utils.js"); // For "assertErrorCode".
(function() {
"use strict";
var local = db.local;
local.drop();
local.insert({});
var pipeline = {$graphLookup: 4};
assertErrorCode(local, pipeline, 40327, "$graphLookup spec must be an object");
pipeline = {
$graphLookup: {
from: "foreign",
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "b",
as: "output",
maxDepth: "string"
}
};
assertErrorCode(local, pipeline, 40100, "maxDepth must be numeric");
pipeline = {
$graphLookup: {
from: "foreign",
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "b",
as: "output",
maxDepth: -1
}
};
assertErrorCode(local, pipeline, 40101, "maxDepth must be nonnegative");
pipeline = {
$graphLookup: {
from: "foreign",
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "b",
as: "output",
maxDepth: 2.3
}
};
assertErrorCode(local, pipeline, 40102, "maxDepth must be representable as a long long");
pipeline = {
$graphLookup: {
from: -1,
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "b",
as: "output"
}
};
assertErrorCode(local, pipeline, 40329, "from must be a string");
pipeline = {
$graphLookup: {
from: "",
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "b",
as: "output"
}
};
assertErrorCode(local, pipeline, 40330, "from must be a valid namespace");
pipeline = {
$graphLookup: {
from: "foreign",
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "b",
as: 0
}
};
assertErrorCode(local, pipeline, 40103, "as must be a string");
pipeline = {
$graphLookup: {
from: "foreign",
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "b",
as: "$output"
}
};
assertErrorCode(local, pipeline, 16410, "as cannot be a fieldPath");
pipeline = {
$graphLookup: {
from: "foreign",
startWith: {$literal: 0},
connectToField: "a",
connectFromField: 0,
as: "output"
}
};
assertErrorCode(local, pipeline, 40103, "connectFromField must be a string");
pipeline = {
$graphLookup: {
from: "foreign",
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "$b",
as: "output"
}
};
assertErrorCode(local, pipeline, 16410, "connectFromField cannot be a fieldPath");
pipeline = {
$graphLookup: {
from: "foreign",
startWith: {$literal: 0},
connectToField: 0,
connectFromField: "b",
as: "output"
}
};
assertErrorCode(local, pipeline, 40103, "connectToField must be a string");
pipeline = {
$graphLookup: {
from: "foreign",
startWith: {$literal: 0},
connectToField: "$a",
connectFromField: "b",
as: "output"
}
};
assertErrorCode(local, pipeline, 16410, "connectToField cannot be a fieldPath");
pipeline = {
$graphLookup: {
from: "foreign",
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "b",
as: "output",
depthField: 0
}
};
assertErrorCode(local, pipeline, 40103, "depthField must be a string");
pipeline = {
$graphLookup: {
from: "foreign",
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "b",
as: "output",
depthField: "$depth"
}
};
assertErrorCode(local, pipeline, 16410, "depthField cannot be a fieldPath");
pipeline = {
$graphLookup: {
from: "foreign",
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "b",
as: "output",
restrictSearchWithMatch: "notamatch"
}
};
assertErrorCode(local, pipeline, 40185, "restrictSearchWithMatch must be an object");
pipeline = {
$graphLookup: {
from: "foreign",
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "b",
as: "output",
notAField: "foo"
}
};
assertErrorCode(local, pipeline, 40104, "unknown argument");
pipeline = {
$graphLookup:
{from: "foreign", startWith: {$literal: 0}, connectFromField: "b", as: "output"}
};
assertErrorCode(local, pipeline, 40105, "connectToField was not specified");
pipeline = {
$graphLookup:
{from: "foreign", startWith: {$literal: 0}, connectToField: "a", as: "output"}
};
assertErrorCode(local, pipeline, 40105, "connectFromField was not specified");
pipeline = {
$graphLookup: {from: "foreign", connectToField: "a", connectFromField: "b", as: "output"}
};
assertErrorCode(local, pipeline, 40105, "startWith was not specified");
pipeline = {
$graphLookup: {
from: "foreign",
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "b"
}
};
assertErrorCode(local, pipeline, 40105, "as was not specified");
pipeline = {
$graphLookup:
{startWith: {$literal: 0}, connectToField: "a", connectFromField: "b", as: "output"}
};
assertErrorCode(local, pipeline, 40328, "from was not specified");
// restrictSearchWithMatch must be a valid match expression.
pipeline = {
$graphLookup: {
from: 'foreign',
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "b",
as: "output",
restrictSearchWithMatch: {$not: {a: 1}}
}
};
assertErrorCode(local, pipeline, 40186, "unable to parse match expression");
// $where and $text cannot be used inside $graphLookup.
pipeline = {
$graphLookup: {
from: 'foreign',
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "b",
as: "output",
restrictSearchWithMatch: {$where: "3 > 2"}
}
};
assertErrorCode(local, pipeline, 40186, "cannot use $where inside $graphLookup");
pipeline = {
$graphLookup: {
from: 'foreign',
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "b",
as: "output",
restrictSearchWithMatch: {$text: {$search: "some text"}}
}
};
assertErrorCode(local, pipeline, 40186, "cannot use $text inside $graphLookup");
pipeline = {
$graphLookup: {
from: 'foreign',
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "b",
as: "output",
restrictSearchWithMatch: {
x: {$near: {$geometry: {type: 'Point', coordinates: [0, 0]}, $maxDistance: 100}}
}
}
};
assertErrorCode(local, pipeline, 40187, "cannot use $near inside $graphLookup");
pipeline = {
$graphLookup: {
from: 'foreign',
startWith: {$literal: 0},
connectToField: "a",
connectFromField: "b",
as: "output",
restrictSearchWithMatch: {
$and: [{
x: {
$near: {
$geometry: {type: 'Point', coordinates: [0, 0]},
$maxDistance: 100
}
}
}]
}
}
};
assertErrorCode(local, pipeline, 40187, "cannot use $near inside $graphLookup at any depth");
// $graphLookup can only consume at most 100MB of memory.
var foreign = db.foreign;
foreign.drop();
// Here, the visited set exceeds 100MB.
var bulk = foreign.initializeUnorderedBulkOp();
var initial = [];
for (var i = 0; i < 8; i++) {
var obj = {_id: i};
obj['longString'] = new Array(14 * 1024 * 1024).join('x');
initial.push(i);
bulk.insert(obj);
}
assert.writeOK(bulk.execute());
pipeline = {
$graphLookup: {
from: "foreign",
startWith: {$literal: initial},
connectToField: "_id",
connectFromField: "notimportant",
as: "graph"
}
};
assertErrorCode(local, pipeline, 40099, "maximum memory usage reached");
// Here, the visited set should grow to approximately 90 MB, and the frontier should push memory
// usage over 100MB.
foreign.drop();
var bulk = foreign.initializeUnorderedBulkOp();
for (var i = 0; i < 14; i++) {
var obj = {from: 0, to: 1};
obj['s'] = new Array(7 * 1024 * 1024).join(' ');
bulk.insert(obj);
}
assert.writeOK(bulk.execute());
pipeline = {
$graphLookup: {
from: "foreign",
startWith: {$literal: 0},
connectToField: "from",
connectFromField: "s",
as: "out"
}
};
assertErrorCode(local, pipeline, 40099, "maximum memory usage reached");
// Here, we test that the cache keeps memory usage under 100MB, and does not cause an error.
foreign.drop();
var bulk = foreign.initializeUnorderedBulkOp();
for (var i = 0; i < 13; i++) {
var obj = {from: 0, to: 1};
obj['s'] = new Array(7 * 1024 * 1024).join(' ');
bulk.insert(obj);
}
assert.writeOK(bulk.execute());
var res = local
.aggregate({
$graphLookup: {
from: "foreign",
startWith: {$literal: 0},
connectToField: "from",
connectFromField: "to",
as: "out"
}
},
{$unwind: {path: "$out"}})
.toArray();
assert.eq(res.length, 13);
}());
|
