mirror of https://github.com/mongodb/mongo
44 lines
1.5 KiB
JavaScript
44 lines
1.5 KiB
JavaScript
// @tags: [
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// assumes_balancer_off,
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// assumes_read_concern_local,
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// ]
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t = db.regex3;
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t.drop();
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assert.commandWorked(t.save({name: "eliot"}));
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assert.commandWorked(t.save({name: "emily"}));
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assert.commandWorked(t.save({name: "bob"}));
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assert.commandWorked(t.save({name: "aaron"}));
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assert.eq(2, t.find({name: /^e.*/}).itcount(), "no index count");
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assert.eq(
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4, t.find({name: /^e.*/}).explain(true).executionStats.totalDocsExamined, "no index explain");
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assert.commandWorked(t.createIndex({name: 1}));
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assert.eq(2, t.find({name: /^e.*/}).itcount(), "index count");
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assert.eq(2,
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t.find({name: /^e.*/}).explain(true).executionStats.totalKeysExamined,
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"index explain"); // SERVER-239
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t.drop();
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assert.commandWorked(t.save({name: "aa"}));
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assert.commandWorked(t.save({name: "ab"}));
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assert.commandWorked(t.save({name: "ac"}));
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assert.commandWorked(t.save({name: "c"}));
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assert.eq(3, t.find({name: /^aa*/}).itcount(), "B ni");
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assert.commandWorked(t.createIndex({name: 1}));
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assert.eq(3, t.find({name: /^aa*/}).itcount(), "B i 1");
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assert.eq(4, t.find({name: /^aa*/}).explain(true).executionStats.totalKeysExamined, "B i 1 e");
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assert.eq(2, t.find({name: /^a[ab]/}).itcount(), "B i 2");
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assert.eq(2, t.find({name: /^a[bc]/}).itcount(), "B i 3");
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t.drop();
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assert.commandWorked(t.save({name: ""}));
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assert.eq(1, t.find({name: /^a?/}).itcount(), "C 1");
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assert.commandWorked(t.createIndex({name: 1}));
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assert.eq(1, t.find({name: /^a?/}).itcount(), "C 2");
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