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https://issues.apache.org/jira/browse/IGNITE-6785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16296528#comment-16296528
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Roman Kondakov commented on IGNITE-6785:
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[~vozerov], please review, tests are ok.
> Affinity field name forced to be upper-case
> -------------------------------------------
>
> Key: IGNITE-6785
> URL: https://issues.apache.org/jira/browse/IGNITE-6785
> Project: Ignite
> Issue Type: Bug
> Components: sql
> Affects Versions: 2.1
> Reporter: Denis Magda
> Assignee: Roman Kondakov
> Labels: important, usability
> Fix For: 2.4
>
> Attachments: sql_bug.zip
>
>
> If an SQL schema and cache is created with CREATE TABLE command and a user
> wants to use key-value APIs creating its own custom key class, then (at
> least) the key class's affinity field forced to be written in upper-case.
> Steps to reproduce using the project attached:
> * start a node with {{./ignite.sh ../examples/config/example-ignite.xml}}.
> * create {{City}} table using {{ignite_world.sql}}. SQLline is one of the
> quickest ways: https://apacheignite-sql.readme.io/docs/sqlline
> * Run {{KeyValueDataProcessing}} to catch the exception below
> {noformat}
> Exception in thread "main" class
> org.apache.ignite.binary.BinaryObjectException: Binary type has different
> affinity key fields [typeName=demo.model.CityKey,
> affKeyFieldName1=COUNTRYCODE, affKeyFieldName2=countryCode]
> at
> org.apache.ignite.internal.binary.BinaryUtils.mergeMetadata(BinaryUtils.java:987)
> {noformat}
> If fact {{CityKey}} names the affinity field in the same way as in CREATE
> TABLE - {{countryCode}}.
> Next, run {{KeyValueBinaryDataProcessing}} to spot another weird thing:
> * BinaryObject key accepts `countryCode` as the affinity field name.
> * If to print our a binary object value then all the fields are in the
> upper-case (they were not defined this way in CREATE TABLE):
> {noformat}
> demo.model.City [idHash=1613627715, hash=-1386587499, DISTRICT=Noord-Holland,
> POPULATION=711200, NAME=Amsterdam]
> {noformat}
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