apache / apache/arrow-java

[JAVA] [arrow-jdbc] Unmapped data type 2014 (TIMESTAMP_WITH_TIMEZONE)

未关闭
#118 2 条评论 1 个 reaction 已指派 0 人 在 GitHub 查看
主要语言
Java
星标
94
派生
152
平均合并
3 天 16 小时
30 天内合并 PR
11

描述

### Describe the usage question you have. Please include as many useful details as possible.

I have an iceberg table with column type "TIMESTAMP_WITH_TIMEZONE"

When I run my flight_sql jdbc client to query this table, I get below error in my flight sql client code.

```
Exception in thread "Thread-0" java.lang.RuntimeException: java.sql.SQLException: Error while executing SQL "SELECT * FROM datawarehouse.school_data_raw.schools limit 100": Unknown error: java.lang.UnsupportedOperationException: Unmapped JDBC type: 2014
at ai.saal.arrowjdbcclient.ArrowJdbcClient.runQueryOnArrow(ArrowJdbcClient.java:123)
at ai.saal.arrowjdbcclient.ArrowJdbcClient.run(ArrowJdbcClient.java:41)
at java.base/java.lang.Thread.run(Thread.java:1583)
Caused by: java.sql.SQLException: Error while executing SQL "SELECT * FROM datawarehouse.school_data_raw.schools limit 100": Unknown error: java.lang.UnsupportedOperationException: Unmapped JDBC type: 2014
at cfjd.org.apache.calcite.avatica.Helper.createException(Helper.java:56)
at cfjd.org.apache.calcite.avatica.Helper.createException(Helper.java:41)
at cfjd.org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:163)
at cfjd.org.apache.calcite.avatica.AvaticaStatement.executeQuery(AvaticaStatement.java:227)
at ai.saal.arrowjdbcclient.ArrowJdbcClient.runQueryOnArrow(ArrowJdbcClient.java:97)
... 2 more
Caused by: cfjd.org.apache.arrow.flight.FlightRuntimeException: INTERNAL: Unknown error: java.lang.UnsupportedOperationException: Unmapped JDBC type: 2014
at cfjd.org.apache.arrow.flight.CallStatus.toRuntimeException(CallStatus.java:131)
at cfjd.org.apache.arrow.flight.grpc.StatusUtils.fromGrpcRuntimeException(StatusUtils.java:164)
at cfjd.org.apache.arrow.flight.grpc.StatusUtils$1.next(StatusUtils.java:250)
at cfjd.org.apache.arrow.flight.sql.FlightSqlClient$PreparedStatement.(FlightSqlClient.java:941)
at cfjd.org.apache.arrow.flight.sql.FlightSqlClient.prepare(FlightSqlClient.java:728)
at cfjd.org.apache.arrow.flight.sql.FlightSqlClient.prepare(FlightSqlClient.java:708)
at org.apache.arrow.driver.jdbc.client.ArrowFlightSqlClientHandler.prepare(ArrowFlightSqlClientHandler.java:170)
at org.apache.arrow.driver.jdbc.ArrowFlightMetaImpl.prepareAndExecute(ArrowFlightMetaImpl.java:161)
at cfjd.org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:675)
at cfjd.org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:156)
... 4 more
```

Query I am running is **SELECT * FROM datawarehouse.school_data_raw.schools limit 100**

Table structure is :

_CREATE TABLE datawarehouse.school_data_raw.schools ( school_id varchar, school_name varchar, ingested_at timestamp(6) with time zone ) WITH ( format = 'PARQUET', format_version = 1, location = 's3a://data-warehouse/raw/school_data/schools' )_

### Component(s)

Java

贡献指南

打开贡献指南

调研方向

首先,跟踪 ArrowFlightMetaImpl.prepareAndExecute 中所示的准备路径,经过 ArrowFlightSqlClient 以及对 type 2014 的 JDBC 元数据处理。针对 TIMESTAMP_WITH_TIMEZONE 列重现 SELECT 查询,并确定该 JDBC type 的预期行为;当查询不再因 unmapped-type error 失败且 coverage 验证了这一点时,即表示完成。

由索引模型根据 Issue 内容生成。

评估

技术栈
java
领域
databases
Issue 类型
缺陷
难度
3/5
预计耗时
1-2 天
活跃度
停滞
描述清晰度
需要澄清
新手友好度
35/100

把新 issue 发到你的邮箱

精选适合新手参与的 GitHub issue 摘要。