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// Cannot implicitly shard accessed collections because of extra shard key index in sharded
// collection.
// @tags: [
// assumes_no_implicit_index_creation,
// ]
// Test $text explain. SERVER-12037.
(function() {
"use strict";
const coll = db.fts_explain;
let res;
coll.drop();
res = coll.createIndex({content: "text"}, {default_language: "none"});
assert.commandWorked(res);
res = coll.insert({content: "some data"});
assert.commandWorked(res);
const explain =
coll.find({$text: {$search: "\"a\" -b -\"c\""}}, {content: 1, score: {$meta: "textScore"}})
.explain(true);
let stage = explain.executionStats.executionStages;
if ("SINGLE_SHARD" === stage.stage) {
stage = stage.shards[0].executionStages;
}
assert.eq(stage.stage, "PROJECTION_DEFAULT");
let textStage = stage.inputStage;
assert.eq(textStage.stage, "TEXT");
assert.gte(textStage.textIndexVersion, 1, "textIndexVersion incorrect or missing.");
assert.eq(textStage.inputStage.stage, "TEXT_MATCH");
assert.eq(textStage.inputStage.inputStage.stage, "TEXT_OR");
assert.eq(textStage.parsedTextQuery.terms, ["a"]);
assert.eq(textStage.parsedTextQuery.negatedTerms, ["b"]);
assert.eq(textStage.parsedTextQuery.phrases, ["a"]);
assert.eq(textStage.parsedTextQuery.negatedPhrases, ["c"]);
})();
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