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Update projections-examples.md
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explain results
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BorisTyshkevich authored Nov 1, 2024
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Expand Up @@ -40,8 +40,11 @@ from numbers(1e7);
select week, sum(a) from test group by week
settings force_optimize_projection=1;
```

https://fiddle.clickhouse.com/7f331eb2-9408-4813-9c67-caef4cdd227d

Explain result: ReadFromMergeTree (weekly_projection)

```
Expression ((Project names + Projection))
Aggregating
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