help wantedseverity/moderatesig/executiontype/bug
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Description
Bug Report
Please answer these questions before submitting your issue. Thanks!
1. Minimal reproduce step (Required)
SELECT CONV(123, 10, 10);
2. What did you expect to see? (Required)
The Length should be 260.
Field 1: `CONV(123, 10, 10)`
Catalog: `def`
Database: ``
Table: ``
Org_table: ``
Type: VAR_STRING
Collation: utf8mb4_0900_ai_ci (255)
Length: 260
Max_length: 3
Decimals: 31
Flags:
+-------------------+
| CONV(123, 10, 10) |
+-------------------+
| 123 |
+-------------------+
1 row in set (0.00 sec)
3. What did you see instead (Required)
mysql> SELECT CONV(123, 10, 10);
Field 1: `CONV(123, 10, 10)`
Catalog: `def`
Database: ``
Table: ``
Org_table: ``
Type: VAR_STRING
Collation: utf8mb4_bin (46)
Length: 256
Max_length: 3
Decimals: 31
Flags: NOT_NULL
+-------------------+
| CONV(123, 10, 10) |
+-------------------+
| 123 |
+-------------------+
1 row in set (0.00 sec)
4. What is your TiDB version? (Required)
master