enso/distribution/lib/Standard/AWS
Radosław Waśko 6f78570115
Fix a DROP table bug, add SQL debug logging (#8007)
- Fixes a bug where creating a temporary table could accidentally issue a `DROP` statement of the table name that the user provided, risking destruction of user data.
- Fortunately, the bad scenario was almost impossible, because the `DROP` statement was only issued _if_ we previously checked that the mentioned table _does not exist_ - dropping a nonexistent table does not do any harm.
- It could have been dangerous in a very unlikely scenario that a table was created just between the _existence check_ and the _drop_.
- After the fix the existence check and any modifications are done within a transaction to avoid interference from concurrent modifications, and the DROP is correctly applied to a temporary Enso table instead of the original one.
- Replaced a temporary log with proper simple logging of SQL statements into a file, if an Environment variable is set.
- Used that feature to test that no unexpected statements occur.
2023-10-10 13:16:06 +00:00
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0.0.0-dev Fix a DROP table bug, add SQL debug logging (#8007) 2023-10-10 13:16:06 +00:00