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Posted to issues@calcite.apache.org by "Dmitri Bourlatchkov (Jira)" <ji...@apache.org> on 2020/11/05 17:26:00 UTC
[jira] [Updated] (CALCITE-4379) Meta.Frame created with java float
values in rows hits a ClassCastException in toProto()
[ https://issues.apache.org/jira/browse/CALCITE-4379?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dmitri Bourlatchkov updated CALCITE-4379:
-----------------------------------------
Description:
Use case:
* Custom {{Meta}} implementation
* {{Meta.Frame.create(offset, done, rows)}} is called with a row (a {{List}}) containing a java {{Float}} value
** Note: the float value is fetched from Apache Cassandra, which has 32-bit float types (unlike SQL).
** Related [email discussion|https://mail-archives.apache.org/mod_mbox/calcite-dev/202011.mbox/%3CCAPSgeEREWLTNpBTpNBe4TY4hvwBWR9x-5BxAckKOTAE5QpoP9Q%40mail.gmail.com%3E]
* The {{Frame}} is serialized by calling its {{.toProto()}} method
* ClassCastException occurs
Exception snippet:
{noformat}
java.lang.ClassCastException: java.lang.Long cannot be cast to
java.lang.Float
at
org.apache.calcite.avatica.remote.TypedValue.writeToProtoWithType(TypedValue.java:600)
at org.apache.calcite.avatica.remote.TypedValue.toProto(TypedValue.java:805)
at org.apache.calcite.avatica.Meta$Frame.serializeScalar(Meta.java:991)
at org.apache.calcite.avatica.Meta$Frame.parseColumn(Meta.java:977)
at org.apache.calcite.avatica.Meta$Frame.toProto(Meta.java:942)
at
org.apache.calcite.avatica.remote.Service$FetchResponse.serialize(Service.java:1468)
[...snip...]
{noformat}
was:
Use case:
* Custom {{Meta}} implementation
* {{Meta.Frame.create(offset, done, rows)}} is called with a row (a {{List}}) containing a java {{Float}} value
** Note: the float value is fetched from Apache Cassandra, which has 32-bit float types (unlike SQL).
** Related [email discussion|https://mail-archives.apache.org/mod_mbox/calcite-dev/202011.mbox/%3CCAPSgeEREWLTNpBTpNBe4TY4hvwBWR9x-5BxAckKOTAE5QpoP9Q%40mail.gmail.com%3E]
* The {Frame}} is serialized by calling its {{.toProto()}} method
* ClassCastException occurs
Exception snippet:
{noformat}
java.lang.ClassCastException: java.lang.Long cannot be cast to
java.lang.Float
at
org.apache.calcite.avatica.remote.TypedValue.writeToProtoWithType(TypedValue.java:600)
at org.apache.calcite.avatica.remote.TypedValue.toProto(TypedValue.java:805)
at org.apache.calcite.avatica.Meta$Frame.serializeScalar(Meta.java:991)
at org.apache.calcite.avatica.Meta$Frame.parseColumn(Meta.java:977)
at org.apache.calcite.avatica.Meta$Frame.toProto(Meta.java:942)
at
org.apache.calcite.avatica.remote.Service$FetchResponse.serialize(Service.java:1468)
[...snip...]
{noformat}
> Meta.Frame created with java float values in rows hits a ClassCastException in toProto()
> ----------------------------------------------------------------------------------------
>
> Key: CALCITE-4379
> URL: https://issues.apache.org/jira/browse/CALCITE-4379
> Project: Calcite
> Issue Type: Bug
> Components: avatica
> Affects Versions: 1.17.0
> Reporter: Dmitri Bourlatchkov
> Priority: Major
>
> Use case:
> * Custom {{Meta}} implementation
> * {{Meta.Frame.create(offset, done, rows)}} is called with a row (a {{List}}) containing a java {{Float}} value
> ** Note: the float value is fetched from Apache Cassandra, which has 32-bit float types (unlike SQL).
> ** Related [email discussion|https://mail-archives.apache.org/mod_mbox/calcite-dev/202011.mbox/%3CCAPSgeEREWLTNpBTpNBe4TY4hvwBWR9x-5BxAckKOTAE5QpoP9Q%40mail.gmail.com%3E]
> * The {{Frame}} is serialized by calling its {{.toProto()}} method
> * ClassCastException occurs
> Exception snippet:
> {noformat}
> java.lang.ClassCastException: java.lang.Long cannot be cast to
> java.lang.Float
> at
> org.apache.calcite.avatica.remote.TypedValue.writeToProtoWithType(TypedValue.java:600)
> at org.apache.calcite.avatica.remote.TypedValue.toProto(TypedValue.java:805)
> at org.apache.calcite.avatica.Meta$Frame.serializeScalar(Meta.java:991)
> at org.apache.calcite.avatica.Meta$Frame.parseColumn(Meta.java:977)
> at org.apache.calcite.avatica.Meta$Frame.toProto(Meta.java:942)
> at
> org.apache.calcite.avatica.remote.Service$FetchResponse.serialize(Service.java:1468)
> [...snip...]
> {noformat}
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