Give access to stats returned by server in X-ClickHouse-Summary

[bgranvea]

Clickhouse can return interesting statistics in a X-ClickHouse-Summary header if send_progress_in_http_headers parameter is set (see ClickHouse/ClickHouse#5116).

In my use case, I need this to know how many rows are inserted when executing a INSERT ... SELECT ...

[pavelnemirovsky]

@bgranvea thanks for PR, any plan to fix ci checks?

[bgranvea]

@bgranvea thanks for PR, any plan to fix ci checks?

there was an issue not related to this PR, I think it is fixed by 4188aaf

I've also added the possibility to add query param before executing it, with the use of ConfigurableApi as it is done in Writer, because I need this in my use case.

PR is updated but I don't see the CI results anymore? is there something to do to rerun the tests?

[den-crane]

Tests are OK https://travis-ci.org/github/ClickHouse/clickhouse-jdbc/pull_requests
But it does not reflected in the PR for some reason.

[zhicwu]

Great work @bgranvea! Do you have time to update the PR and re-target to develop branch? I'm wondering if we can make it part of 0.2.6 release aiming Feb 13th.

[bgranvea]

Great work @bgranvea! Do you have time to update the PR and re-target to develop branch? I'm wondering if we can make it part of 0.2.6 release aiming Feb 13th.

I've updated with your remarks and rebased on the develop branch.

[zhicwu]

I've updated with your remarks and rebased on the develop branch.

Thank you @bgranvea. Could you change merge target from master to develop?

[den-crane]

BTW, Number of affected rows will be inaccurate.
CH takes into account rows inserted into Materialized Views so the number will be bigger.
And the latest CH version does merge during insert so the the number can be fewer.

[bgranvea]

BTW, Number of affected rows will be inaccurate.
CH takes into account rows inserted into Materialized Views so the number will be bigger.
And the latest CH version does merge during insert so the the number can be fewer.

I also noticed that with distributed tables the number of inserted rows is doubled.