Details
Description
CTAS with location clause acts as an insert overwrite. This can cause problems when there sub directories with in a directory.
This cause some users accidentally wipe out directories with very important data. We should ban CTAS with location to a non-empty directory.
Reproduce:
create table ctas1
location '/Users/ychen/tmp'
as
select * from jsmall limit 10;
create table ctas2
location '/Users/ychen/tmp'
as
select * from jsmall limit 5;
Both creates will succeed. But value in table ctas1 will be replaced by ctas2 accidentally.
Attachments
Attachments
Issue Links
- is blocked by
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SENTRY-810 CTAS without location is not verified properly
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- Resolved
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