build(deps): bump com.clickhouse:clickhouse-jdbc from 0.6.5 to 0.7.0 #2319

dependabot · 2024-10-07T06:37:24Z

Bumps com.clickhouse:clickhouse-jdbc from 0.6.5 to 0.7.0.

Release notes

Sourced from com.clickhouse:clickhouse-jdbc's releases.

Release v0.7.0

Deprecations

Following deprecated components are removed:

clickhouse-cli-client

clickhouse-grpc-client

Important Changes

[client-v2] New transport layer implementation is used by default. It is still possible to switch back using old implementation by setting com.clickhouse.client.api.Client.Builder#useNewImplementation to false. (ClickHouse/clickhouse-java#1847)

New Features

[client-v2] Now there is an easy way to set custom HTTP headers globally for client and per operation. See com.clickhouse.client.api.Client.Builder.httpHeader(java.lang.String, java.lang.String) for details. (ClickHouse/clickhouse-java#1782)

[client-v2] Now there is a way to set any server settings globally for client and per operation. See com.clickhouse.client.api.Client.Builder.serverSetting(java.lang.String, java.lang.String) for details. (ClickHouse/clickhouse-java#1782)

[client-v2] Added support for writing AggregateFunction values (bitmap serialization). !! Reading is not supported but will be added in the next release. (ClickHouse/clickhouse-java#1814)

[r2dbc] Defer connection creation. This allows pool to create a new instance on every subscription, instead of always returning the same one. (ClickHouse/clickhouse-java#1810)

Performance Improvements

[client-v2] Improved reading fixed length data like numbers. It is possible to configure readers to use pre-allocated buffers to avoid memory allocation for each data row/block. Significantly reduces GC pressure. See com.clickhouse.client.api.Client.Builder.allowBinaryReaderToReuseBuffers for details. (ClickHouse/clickhouse-java#1816)

[client-v2] New API method introduced to read data directly to a POJO. Deserializers for POJO classes are compiled into bytecode (with help of https://asm.ow2.io/ library) and optimized for each schema. It is great performance boost because data is read without copying it into temporary structures. Code can be optimized by JVM while runtime as SerDe code is implemented without reflection using JVM bytecode. Using bytecode makes handling primitive types without values boxing. (ClickHouse/clickhouse-java#1794, ClickHouse/clickhouse-java#1826)

[client-v2] Optimized reading columns - internally data is read into map of column-values. It is done to allow reading same column more than once. Previously map was cleared each row what caused a lot internal objects creation. Now values are overridden because schema doesn't change between rows. (ClickHouse/clickhouse-java#1795)

Documentation

[client-v2] Added example for Kotlin (ClickHouse/clickhouse-java#1793)

[doc] Main documentation on official ClickHouse website is updated. Each client has its own page with detailed information now. Added documentation for the Client V2. See https://clickhouse.com/docs/en/integrations/java.

Bug Fixes

[client-v2] Fix for cases when missing operation metrics were causing NPE. (ClickHouse/clickhouse-java#1846)

[client-v2] Fix for handling empty result by BinaryFormat readers. (ClickHouse/clickhouse-java#1845)

[jdbc] Content of an artifact 'clickhouse-jdbc-{version}-all.jar' is fixed and contains all required classes from clickhouse-client and clickhouse-data. (ClickHouse/clickhouse-java#1842)

[client-v1, jdbc] Endpoints definition parsing fixed to grub properties correctly. Now even properties with key-value pairs are supported. (ClickHouse/clickhouse-java#1841, ClickHouse/clickhouse-java#1665)

Changelog

Sourced from com.clickhouse:clickhouse-jdbc's changelog.

0.7.0

Deprecations

Following deprecated components are removed:

clickhouse-cli-client

clickhouse-grpc-client

Important Changes

[client-v2] New transport layer implementation is used by default. It is still possible to switch back using old implementation by setting com.clickhouse.client.api.Client.Builder#useNewImplementation to false. (ClickHouse/clickhouse-java#1847)

New Features

[client-v2] Now there is an easy way to set custom HTTP headers globally for client and per operation. See com.clickhouse.client.api.Client.Builder.httpHeader(java.lang.String, java.lang.String) for details. (ClickHouse/clickhouse-java#1782)

[client-v2] Now there is a way to set any server settings globally for client and per operation. See com.clickhouse.client.api.Client.Builder.serverSetting(java.lang.String, java.lang.String) for details. (ClickHouse/clickhouse-java#1782)

[client-v2] Added support for writing AggregateFunction values (bitmap serialization). !! Reading is not supported but will be added in the next release. (ClickHouse/clickhouse-java#1814)

[r2dbc] Defer connection creation. This allows pool to create a new instance on every subscription, instead of always returning the same one. (ClickHouse/clickhouse-java#1810)

Performance Improvements

[client-v2] Improved reading fixed length data like numbers. It is possible to configure readers to use pre-allocated buffers to avoid memory allocation for each data row/block. Significantly reduces GC pressure. See com.clickhouse.client.api.Client.Builder.allowBinaryReaderToReuseBuffers for details. (ClickHouse/clickhouse-java#1816)

[client-v2] New API method introduced to read data directly to a POJO. Deserializers for POJO classes are compiled into bytecode (with help of https://asm.ow2.io/ library) and optimized for each schema. It is great performance boost because data is read without copying it into temporary structures. Code can be optimized by JVM while runtime as SerDe code is implemented without reflection using JVM bytecode. Using bytecode makes handling primitive types without values boxing. (ClickHouse/clickhouse-java#1794, ClickHouse/clickhouse-java#1826)

[client-v2] Optimized reading columns - internally data is read into map of column-values. It is done to allow reading same column more than once. Previously map was cleared each row what caused a lot internal objects creation. Now values are overridden because schema doesn't change between rows. (ClickHouse/clickhouse-java#1795)

Documentation

[client-v2] Added example for Kotlin (ClickHouse/clickhouse-java#1793)

[doc] Main documentation on official ClickHouse website is updated. Each client has its own page with detailed information now. Added documentation for the Client V2. See https://clickhouse.com/docs/en/integrations/java.

Bug Fixes

[client-v2] Fix for cases when missing operation metrics were causing NPE. (ClickHouse/clickhouse-java#1846)

[client-v2] Fix for handling empty result by BinaryFormat readers. (ClickHouse/clickhouse-java#1845)

[jdbc] Content of an artifact 'clickhouse-jdbc-{version}-all.jar' is fixed and contains all required classes from clickhouse-client and clickhouse-data. (ClickHouse/clickhouse-java#1842)

[client-v1, jdbc] Endpoints definition parsing fixed to grub properties correctly. Now even properties with key-value pairs are supported. (ClickHouse/clickhouse-java#1841, ClickHouse/clickhouse-java#1665)

Commits

a499238 Merge pull request #1849 from ClickHouse/fix_info_log
7e3c531 remove info log for end of stream
e48deeb Update pom.xml
616ddb8 Merge pull request #1848 from ClickHouse/pre_0.7.0
de62ebe fixed a few minor things
23d5b76 small update
21417e4 Updated version and changelog
18a6550 Merge pull request #1826 from ClickHouse/clientv2_primitive_reader
27e2613 Merge pull request #1841 from ClickHouse/clientv2_custom_headers
8baa9d8 Merge pull request #1847 from ClickHouse/clientv2_make_newimpl_default
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