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Posted to issues@beam.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2020/11/12 18:12:00 UTC
[jira] [Work logged] (BEAM-11173) Create Bigtable table provider
[ https://issues.apache.org/jira/browse/BEAM-11173?focusedWorklogId=510953&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-510953 ]
ASF GitHub Bot logged work on BEAM-11173:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 12/Nov/20 18:11
Start Date: 12/Nov/20 18:11
Worklog Time Spent: 10m
Work Description: piotr-szuberski opened a new pull request #13319:
URL: https://github.com/apache/beam/pull/13319
Added Bigtable table provider with simple read operation - filters and write will be done in another one in the near future.
Problems:
BeamSQL doesn't support `ARRAY<ROW>`. If you use
```
CREATE TABLE test(
key VARCHAR,
family ROW<q1 ARRAY<ROW<val VARCHAR, timestampMicros BIGINT>>>
)
```
and then
`SELECT t.key, t.family.q1 FROM test t`
Calcite shouts that it couldn't parse the generated code.
What is possible is of little value:
`SELECT t.key, t.family.q1[0] FROM test t`
So it's blocked to select all cells with timestamp and labels for now, but as I read about Bigtable it's usually not the desired case (the schema advice is to have single value per cell and usually only the latest value is needed).
I used `val` instead of `value` because value is a keyword in SQL and hence would need to be used with backslashes.
------------------------
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Issue Time Tracking
-------------------
Worklog Id: (was: 510953)
Remaining Estimate: 0h
Time Spent: 10m
> Create Bigtable table provider
> ------------------------------
>
> Key: BEAM-11173
> URL: https://issues.apache.org/jira/browse/BEAM-11173
> Project: Beam
> Issue Type: New Feature
> Components: dsl-sql, io-java-gcp
> Reporter: Piotr Szuberski
> Assignee: Piotr Szuberski
> Priority: P2
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Add Bigtable table provider for BeamSQL.
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