Roadmap 2021
See original GitHub issue0.2.x
Focus on bug fixes, small enhancements, and backward compatibility...
0.2.5-
switch to github actions for consistency -
use testcontainer for integration test
-
0.2.6-
enable retry for idempotent queries(as workaround ofhost failed to respond
) -
new sql parser -
use basic auth instead of query parameters for authentication
-
- 0.2.7 - TBD(in case any critical issue)
0.3.x
Focus on new features, code clean up, and abstraction which may break existing interfaces/APIs…
Previous releases...
0.3.0-
BREAKING CHANGE: drop JDK7 support -
BREAKING CHANGE: remove Guava dependency (UnsignedLong
is removed, please uselong
(faster) orBigInteger
(slower) instead forUInt64
)Note: shaded jar is now ~3.65MB(was 7.19MB in 0.2.6, and 5.68MB in 0.2.4). -
JDBC 4.2 support -
more data types (including aliases) like IPv4, IPv6, DateTime64, *Int128, *Int256, Decimal256 and MapNote:UInt128
will be supported soon on server side. -
RoaringBitmap support - please use latest RoaringBitmap -
restructure code (clickhouse-jdbc
for JDBC compliance, andclickhouse-*client
for efficiency and consistent behaviors like any other clickhouse client, see #570) -
performance test (clickhouse-jdbc
vs.clickhouse4j
vs.clickhouse-native-jdbc
vs.mariadb-java-client
) -
CI enhancement: checkstyle, spellcheck & SonarCloud
-
0.3.1-
BREAKING CHANGE: remove deprecated stuff Note: will also drop fallback of SQL parsing -
BREAKING CHANGE: exclude roaringbitmap in uber jar and remove jitpack.io maven repository - see #603 -
multi-statement support - only return the last result
-
Ongoing releases...
- 0.3.2
- JPMS support along with multi-release jars
19M target/clickhouse-jdbc-0.3.2-SNAPSHOT-all.jar 18M target/clickhouse-jdbc-0.3.2-SNAPSHOT-grpc.jar 664K target/clickhouse-jdbc-0.3.2-SNAPSHOT-http.jar 960K target/clickhouse-jdbc-0.3.2-SNAPSHOT-javadoc.jar 2.7M target/clickhouse-jdbc-0.3.2-SNAPSHOT-shaded.jar 428K target/clickhouse-jdbc-0.3.2-SNAPSHOT.jar
- introduce abstract module
clickhouse-client
, experimentalclickhouse-grpc-client
, and HttpURLConnection-basedclickhouse-http-client
- named parameter support(only available in
clickhouse-client
) - support RowBinary* format and more data types(Geo types, Date32, Tuple, Nested, mixed use of Array/Tuple/Map etc.)
- new JDBC driver(
com.clickhouse.jdbc.ClickHouseDriver
) built on top ofclickhouse-client
Note: both old and new drivers will co-exist in 0.3.x series and the old one will be removed starting from 0.4. - show schema of remote datasources(when JDBC bridge is available)
- fix timezone and DateTime64 related issues
- adaptive integration test against local testcontainer or a remote server, and categorize cases under different groups
- replace
jackson-databind
andjackson-core
bygson
- enhance benchmarks to cover most JDBC drivers and data types
- alternative implementation for http(s) protocol(JDK 11 HttpClient)
- JPMS support along with multi-release jars
Issue Analytics
- State:
- Created 3 years ago
- Reactions:15
- Comments:14 (3 by maintainers)
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These are great inputs! IMO, put the repository name aside,
clickhouse-jdbc
is both JDBC driver and Java client for ClickHouse 😃 Implementing JDBC interfaces simplifies integration, while as a Java client, it should stick with the clickhouse-way - simple to use and efficient in runtime. Alternatively, we can simply treat it as a JDBC wrapper over Java client for ClickHouse, meaning we can choose suitable interface to talk to ClickHouse using JVM languages, depending on what we need.I’m with you on JDBC compliance. That’s why I created #545 and suggested to introduce a new setting. On the other hand, we probably don’t have to completely follow JDBC standards - not only because ClickHouse has its own limitation(like transaction support, server-side cursor etc.), but also to save time so that we can focus on things that matter the most(like more data types support, streaming, caching, stability etc.). It seems we’d better restructure the code early using multiple modules/packages.
I think we can start to create more issues/feature requests and add them into the release plan, starting from 0.3.0. I’m sure we can fill the gap between 0.4 and 1.0 quickly 😉 And of course it’s a plan that we can change as needed.
Some more comments:
ClickHouseContainerForTest.beforeSuite()
insetUp
method 😉Hi @zhicwu , I am excited to see a renewed activity in this project. I think it is important that the official JDBC driver is maintained. Please let me know if there is anything I can help with.