Code: 113, e.displayText() = DB::Exception: There is no session or session context has expired (version 21.6.6.51 (official build)) · jdbc:clickhouse://xxx.xx.xx ...
USE Statement USE db Lets you set the current database for the session. ... be made when using the HTTP protocol, since there is no concept of a session.
HTTP Interface. The HTTP interface lets you use ClickHouse on any platform from any programming language. We use it for working from Java and Perl, as well as shell scripts. In other departments, the HTTP interface is used from Perl, Python, and Go. The HTTP interface is more limited than the native interface, but it has better compatibility.
16.11.2020 · clickhouse-client: allow to set query parameters interactively. #17113. Open alexey-milovidov opened this issue Nov 17, 2020 · 5 comments Open ... = DB::Exception: There is no session (version 20.11.4.13 (official build)) I guess the following works without session.
19.04.2019 · To use temporary tables you need to have an active session. It's enough to add session_id parameter with some value to the URL of ClickHouse request. Later requests with the same session_id will 'remember' temporary tables, settings, etc. you did in previous queries with that session_id. Please also remember that sessions use exclusive locks ...
ClickHouse uses threads from the Global Thread pool to process queries. If there is no idle thread to process a query, then a new thread is created in the pool. max_thread_pool_size limits the maximum number of threads in the pool. Possible values: …
14.09.2020 · There are 545 unexpected parts with 65883643 rows (191 of them is not just-written with 65883643 rows), 0 missing ... Exception: Session expired (Session expired). A10 ... ClickHouse有很多表引擎，用的最多的是ReplicatedMergeTree，但是ReplicatedMergeTree也是基于MergeTree进行的增强，核心还是MergeTree ...
ClickHouse Features that Can be Considered Disadvantages¶ No full-fledged transactions. Lack of ability to modify or delete already inserted data with high rate and low latency. There are batch deletes and updates available to clean up or modify data, for example to comply with GDPR.
29.05.2020 · 1 概述 在对ClickHouse进行分布表+复制表+zookeeper保证高可用的情况下进行性能测试时遇到如下坑，进行整理2 分布表join问题Unknown identifier: LO_CUSTKEY, context:…1.1 问题描述 SQL如下：SELECT count(1)FROM performance.line_all AS c LEFT JOIN performance.customer_all AS l ON l.C_CUSTKEY = c.LO_CUSTKEY
Session expired If it happens rare - it is the normal situation (clickhouse ... ClickHouse "There are no UInt128 literals in SQL" error when selecting UUID ...