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Возможность не фейлить INSERT, если не получилось вставить

2

Если запись уже существует, то запрос вернёт ошибку, о чём сказано тут: https://ydb.tech/ru/docs/yql/reference/syntax/insert_into Это выбивается из общей схемы работы со всеми остальными запросами. Например, когда не получилось сделать UPDATE или...

uh-zuh

Тут https://ydb.tech/ru/docs/yql/reference/types/optional есть пример: ```SQL $dict = {"a":1, "b":null}; $found = $dict["b"]; select if($found is not null, unwrap($found), -1); ``` но он не вносит ясности, а вызывает ещё больше вопросов....

uh-zuh

I'm trying to get a better high level understanding on how ydb works and from what I understand so far all writes from data tablets go through dsproxy and I...

nvartolomei

Any details available about columnshard?

1

Was reading the code and was wondering if there are any details about the "columnshard" and how it integrates into the big picture. https://github.com/ydb-platform/ydb/tree/main/ydb/core/tx/columnshard

nvartolomei

Получаю такую ошибку: ```json { "issues": [ { "issueCode": 1060, "issues": [ { "issueCode": 1, "issues": [], "message": "ydb/core/kqp/host/kqp_run_physical.cpp:263 PrepareParameters(): requirement it.second failed" } ], "message": "Execution" }, { "issueCode":...

vladkolotvin

ydb-cli invalid output with -t scan --format json-unicode-array

1

If run query in scan mode and want to get json-array It looks like ydb interprets the beginning of a packet as the beginning of an array Result data looks...

tvar

ydb-cli does not support explain with parameters

1

When using `ydb table query explain`, it is not possible to specify parameters via --param like `ydb table query execute` This does not allow you to know the plan for...

tvar

MichaelMonashev

Document supported hardware architectures

2

Hi! Could you please put the information about supported architectures to the documentation please? E.e. about supported architectures for different operating systems, some specific requirements to the supported instructions, if...

zamazan4ik

Add support of the mirror-2 fault tolerance mode

5

Now there are only three allowed fault tolerance modes in a ydb cluster: `none`, `block-4-2` and `mirror-3-dc`. The first one does not provide any level of redundancy, the other two...

oleg68