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https://issues.apache.org/jira/browse/CALCITE-708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14544042#comment-14544042
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Julian Hyde commented on CALCITE-708:
-------------------------------------
This method is supposed to return the type-info for the whole database, not a
particular schema. So I don't think Calcite should be talking to Schema, Table,
SchemaFactory or TableFactory. It should basically return the same thing for
any instance of Calcite -- with some tweaking depending on the current
RelDataTypeSystem.
When Calcite is not involved, JdbcMeta should just return getTypeInfo from the
underlying database.
> Avatica and Calcite to support DatabaseMetaData getTypeInfo
> -----------------------------------------------------------
>
> Key: CALCITE-708
> URL: https://issues.apache.org/jira/browse/CALCITE-708
> Project: Calcite
> Issue Type: Improvement
> Reporter: Xavier FH Leong
> Assignee: Julian Hyde
> Priority: Minor
> Labels: avatica, metadata
>
> http://docs.oracle.com/javase/7/docs/api/java/sql/DatabaseMetaData.html#getTypeInfo()
>
> Avatica to call underlying connection database metadata for getTypeInfo to
> show the database supported type and meta info.
> Calcite to provide the info for the underlying adapter thru SqlTypeName and
> RelDataType
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