stdpain commented on pull request #6010:
URL: https://github.com/apache/incubator-doris/pull/6010#issuecomment-861323120
@morningman
before:
```
mysql> SELECT count(get_json_int(LO_COMMITDATE, "$.k1")) from LINE_ORDER_V2;
+----------------------------------------------+
| count(get_json_int(`LO_COMMITDATE`, '$.k1')) |
+----------------------------------------------+
| 0 |
+----------------------------------------------+
1 row in set (19.35 sec)
mysql> SELECT count(get_json_int(LO_COMMITDATE, "$.k1")) from LINE_ORDER_V2;
+----------------------------------------------+
| count(get_json_int(`LO_COMMITDATE`, '$.k1')) |
+----------------------------------------------+
| 0 |
+----------------------------------------------+
1 row in set (19.18 sec)
mysql> SELECT count(get_json_int(LO_COMMITDATE, "$.k1")) from LINE_ORDER_V2;
+----------------------------------------------+
| count(get_json_int(`LO_COMMITDATE`, '$.k1')) |
+----------------------------------------------+
| 0 |
+----------------------------------------------+
1 row in set (19.06 sec)
```
after:
```
mysql> SELECT count(get_json_int(LO_COMMITDATE, "$.k1")) from LINE_ORDER_V2;
+----------------------------------------------+
| count(get_json_int(`LO_COMMITDATE`, '$.k1')) |
+----------------------------------------------+
| 0 |
+----------------------------------------------+
1 row in set (1.46 sec)
mysql> SELECT count(get_json_int(LO_COMMITDATE, "$.k1")) from LINE_ORDER_V2;
+----------------------------------------------+
| count(get_json_int(`LO_COMMITDATE`, '$.k1')) |
+----------------------------------------------+
| 0 |
+----------------------------------------------+
1 row in set (1.19 sec)
mysql> SELECT get_json_int('{"k1":1, "k2":"2"}', "$.k1");
+--------------------------------------------+
| get_json_int('{"k1":1, "k2":"2"}', '$.k1') |
+--------------------------------------------+
| 1 |
+--------------------------------------------+
1 row in set (0.01 sec)
```
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