pingcap / pingcap/tidb

`TIMESTAMP` should return `NULL` for zero time

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#59,437 1 comment 0 reactions 0 assignees View on GitHub
component/expression severity/moderate sig/execution type/bug
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Description

## Bug Report

Please answer these questions before submitting your issue. Thanks!

### 1. Minimal reproduce step (Required)

### 2. What did you expect to see? (Required)

```
mysql> SELECT TIMESTAMP('0000-00-00 00:00:00');
+----------------------------------+
| TIMESTAMP('0000-00-00 00:00:00') |
+----------------------------------+
| NULL |
+----------------------------------+
1 row in set, 1 warning (0.02 sec)
```

### 3. What did you see instead (Required)

```
mysql> SELECT TIMESTAMP('0000-00-00 00:00:00');
+----------------------------------+
| TIMESTAMP('0000-00-00 00:00:00') |
+----------------------------------+
| 0000-00-00 00:00:00 |
+----------------------------------+
1 row in set (0.00 sec)
```

### 4. What is your TiDB version? (Required)

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