44 lines
966 B
JavaScript
44 lines
966 B
JavaScript
// @tags: [does_not_support_stepdowns]
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t = db.mr4;
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t.drop();
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t.save({x: 1, tags: ["a", "b"]});
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t.save({x: 2, tags: ["b", "c"]});
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t.save({x: 3, tags: ["c", "a"]});
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t.save({x: 4, tags: ["b", "c"]});
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m = function() {
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this.tags.forEach(function(z) {
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emit(z, {count: xx.val});
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});
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};
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r = function(key, values) {
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var total = 0;
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for (var i = 0; i < values.length; i++) {
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total += values[i].count;
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}
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return {count: total};
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};
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res = t.mapReduce(m, r, {out: "mr4_out", scope: {xx: {val: 1}}});
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z = res.convertToSingleObject();
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assert.eq(3, Object.keySet(z).length, "A1");
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assert.eq(2, z.a.count, "A2");
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assert.eq(3, z.b.count, "A3");
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assert.eq(3, z.c.count, "A4");
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res.drop();
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res = t.mapReduce(m, r, {scope: {xx: {val: 2}}, out: "mr4_out"});
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z = res.convertToSingleObject();
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assert.eq(3, Object.keySet(z).length, "A1");
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assert.eq(4, z.a.count, "A2");
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assert.eq(6, z.b.count, "A3");
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assert.eq(6, z.c.count, "A4");
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res.drop();
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