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Posted to issues@flink.apache.org by "jingzhang (JIRA)" <ji...@apache.org> on 2017/02/24 06:51:44 UTC
[jira] [Updated] (FLINK-5570) Support register external catalog to
table environment
[ https://issues.apache.org/jira/browse/FLINK-5570?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
jingzhang updated FLINK-5570:
-----------------------------
Description:
This issue aims to support register one or more {{ExternalCatalog}} (which is referred in https://issues.apache.org/jira/browse/FLINK-5568) to {{TableEnvironment}}. After registration, SQL and TableAPI queries could access to tables in the external catalogs without register those tables one by one to {{TableEnvironment}} beforehand.
We plan to add two APIs in {{TableEnvironment}}:
1. register externalCatalog
{code}
def registerExternalCatalog(name: String, externalCatalog: ExternalCatalog): Unit
{code}
2. scan a table from registered catalog and returns the resulting {{Table}}, the API is very useful in TableAPI queries.
{code}
def scan(catalogName: String, tableIdentifier: TableIdentifier): Table
{code}
> Support register external catalog to table environment
> ------------------------------------------------------
>
> Key: FLINK-5570
> URL: https://issues.apache.org/jira/browse/FLINK-5570
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: Kurt Young
> Assignee: jingzhang
>
> This issue aims to support register one or more {{ExternalCatalog}} (which is referred in https://issues.apache.org/jira/browse/FLINK-5568) to {{TableEnvironment}}. After registration, SQL and TableAPI queries could access to tables in the external catalogs without register those tables one by one to {{TableEnvironment}} beforehand.
> We plan to add two APIs in {{TableEnvironment}}:
> 1. register externalCatalog
> {code}
> def registerExternalCatalog(name: String, externalCatalog: ExternalCatalog): Unit
> {code}
> 2. scan a table from registered catalog and returns the resulting {{Table}}, the API is very useful in TableAPI queries.
> {code}
> def scan(catalogName: String, tableIdentifier: TableIdentifier): Table
> {code}
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