clickhouse-java

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serialize or deserilaze the Roaring64NavigableMap

2

bug reproduce: **when the size of Roaring64NavigableMap is bigger than 32, and some values are smaller than Integer.MAX , and some values are bigger than Integer.MAX, this bigger ones will...

panda0120

Unknown data type: int64 when integrated with spark project

9

Hi, I got an exception when the data was saved to clickhouse by sparkSQL with clickhouse-jdbc. This would happen, when the type of the columns was Array[Int64]. And the SparkSql...

shaokunW

use uppercase name as key for all ClickHouseDataTypes

2

shaokunW

This is an umbrella issue to track performance issues, collect ideas, and document improvements as well as latest update. ### Where are we now Below is elapsed time comparison among...

zhicwu

The field type is DateTime,the default value is null

4

The field type is DateTime, the default value is null, and NullPointException when a query is mapped to a Java. 

wdream

these JDBC parameters supported by Clickhouse?

1

these JDBC parameters supported by Clickhouse? prepStmtCacheSize prepStmtCacheSqlLimit cachePrepStmts useServerPrepStmts

kiwimg

Cancel statement don’t work due to “Session is locked by a concurrent client” (0.3.2-patch11)

1

Hi! I'm unable to cancel a statement using the `cancel()` method if `session_id` is set. I had the same problem with the driver v0.3.1, however, there it was possible to...

Veirisa

” Transaction is not supported. WARN 1“ How to remove

1

” Transaction is not supported. WARN 1“ How to remove ` 2022-08-04 16:44:42.607 WARN 1 --- [duler_Worker-12] c.c.j.internal.ClickHouseConnectionImpl : [JDBC Compliant Mode] Transaction [28bb8f64-3988-4416-aa01-db06faf42499] (1 queries & 0 savepoints) is...

kiwimg

Why DQL SETTINGS not support placeholder ?

3

step: sql：select xxx from xxx settings max_execution_time = :max_execution_time params：put("max_execution_time", 3); result： c.c.jdbc.parser.ClickHouseSqlParser : Parse error at line 1, column 284.

guosk123

Insert batch - JSON error

2

``` java.sql.BatchUpdateException: Code: 48. DB::Exception: Method getDefault() is not implemented for data type Object('json'). (NOT_IMPLEMENTED) (version 22.7.1.2484 (official build)) sink | , server ClickHouseNode [uri=http://clickhouse:8123/test, options={client_name=Agent_1}]@-1529990687 sink | at com.clickhouse.jdbc.SqlExceptionUtils.batchUpdateError(SqlExceptionUtils.java:109)...

subkanthi