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https://issues.apache.org/jira/browse/BEAM-8307?focusedWorklogId=429755&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-429755
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ASF GitHub Bot logged work on BEAM-8307:
----------------------------------------
Author: ASF GitHub Bot
Created on: 02/May/20 01:58
Start Date: 02/May/20 01:58
Worklog Time Spent: 10m
Work Description: rahul8383 commented on pull request #11581:
URL: https://github.com/apache/beam/pull/11581#issuecomment-622652488
JdbcIO.Read -> SqlTransform.query(SELECT COUNT(*) FROM PCOLLECTION //Any
query ) would throw NPE if the input PCollection to SqlTransform JdbcIO
specific Logical Types in its Schema.
I have provided the Source Table Schema and attached the Exception stack
trace in the JIRA ticket.
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Issue Time Tracking
-------------------
Worklog Id: (was: 429755)
Time Spent: 1h 20m (was: 1h 10m)
> NPE in Calcite dialect when input PCollection has logical type in schema,
> from JdbcIO Transform
> -----------------------------------------------------------------------------------------------
>
> Key: BEAM-8307
> URL: https://issues.apache.org/jira/browse/BEAM-8307
> Project: Beam
> Issue Type: Bug
> Components: dsl-sql, io-java-jdbc
> Affects Versions: 2.15.0
> Reporter: Rahul Patwari
> Assignee: Rahul Patwari
> Priority: Major
> Attachments: exception_sqlTransform.txt
>
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> An exception is thrown when SqlTransform is used with JdbcIO.
> Schema of the Source Table:
> _CREATE TABLE actor (_
> _actor_id SMALLINT UNSIGNED NOT NULL AUTO_INCREMENT,_
> _first_name VARCHAR(45) NOT NULL,_
> _last_name VARCHAR(45) NOT NULL,_
> _last_update TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE
> CURRENT_TIMESTAMP,_
> _PRIMARY KEY (actor_id),_
> _KEY idx_actor_last_name (last_name)_
> _)ENGINE=InnoDB DEFAULT CHARSET=utf8;_
>
> Many of the Jdbc Types are converted to Logical_Types in Beam.
> Refer:
> [https://github.com/apache/beam/blob/113461a4275eb28a101e416897ccd607aa51f83f/sdks/java/io/jdbc/src/main/java/org/apache/beam/sdk/io/jdbc/SchemaUtil.java#L102]
> The initial observation is that this code:
> [https://github.com/apache/beam/blob/113461a4275eb28a101e416897ccd607aa51f83f/sdks/java/extensions/sql/src/main/java/org/apache/beam/sdk/extensions/sql/impl/utils/CalciteUtils.java#L207]
> is returning null.
>
> PFA [^exception_sqlTransform.txt]
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