pingcap / pingcap/tidb

EXCEPT returns non-empty result for identical floating-point division queries with INT columns

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#63,238 4 comments 0 reactions 0 assignees View on GitHub
contribution first-time-contributor fuzz/sqlancer sig/execution type/bug
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Go
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Description

## Bug Report

### 1. Minimal reproduce step (Required)
```sql
CREATE TABLE t1(c INT);
INSERT INTO t1 VALUES (1);
SELECT c / 3 FROM t1 EXCEPT SELECT c / 3 FROM t1;
```
### 2. What did you expect to see? (Required)

Empty set

### 3. What did you see instead (Required)
```
+--------+
| c / 3 |
+--------+
| 0.3333 |
+--------+
```
### 4. What is your TiDB version? (Required)

```
tiup playground nightly --host 0.0.0.0 --kv 3 --tiflash 3
```
```
8.0.11-TiDB-v9.0.0-beta.2.pre-384-g5fab436
```

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