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2 Commits

Author SHA1 Message Date
Anton Popov
e8ce091e68 Merge remote-tracking branch 'upstream/master' into HEAD 2022-01-21 20:11:18 +03:00
Stig Bakken
6fbb9f5e87 Implement EXPLAIN TABLE OVERRIDE for pre-validating overrides. 
Example:

```sql
EXPLAIN TABLE OVERRIDE mysql('127.0.0.1:3306', 'db', 'table', 'user', 'pw')
    PARTITION BY tuple(toYYYYMM(created), id % 8)
```

Validations done:

 * check that storage overrides do not reference unknown or nullable columns
 * check that default specifier is not modified for columns
 2021-12-30 09:02:27 +01:00