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https://issues.apache.org/jira/browse/BEAM-8910?focusedWorklogId=445025&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-445025
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ASF GitHub Bot logged work on BEAM-8910:
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Author: ASF GitHub Bot
Created on: 12/Jun/20 16:29
Start Date: 12/Jun/20 16:29
Worklog Time Spent: 10m
Work Description: tvalentyn commented on a change in pull request #11086:
URL: https://github.com/apache/beam/pull/11086#discussion_r439522134
##########
File path: sdks/python/apache_beam/io/gcp/bigquery.py
##########
@@ -78,6 +72,12 @@
or a table. Pipeline construction will fail with a validation error if neither
or both are specified.
+When reading from BigQuery using `BigQuerySource`, bytes are returned as
+base64-encoded bytes. When reading via `ReadFromBigQuery`, bytes are returned
+as bytes without base64 encoding. This is due to the fact that ReadFromBigQuery
+uses Avro expors by default. To get base64-encoded bytes, you can use the flag
Review comment:
nit: exports
##########
File path: CHANGES.md
##########
@@ -58,6 +58,10 @@
* Support for X source added (Java/Python)
([BEAM-X](https://issues.apache.org/jira/browse/BEAM-X)).
* Support for reading from Snowflake added (Java)
([BEAM-9722](https://issues.apache.org/jira/browse/BEAM-9722)).
+* A new transform to read from BigQuery has been added:
`apache_beam.io.gcp.bigquery.ReadFromBigQuery`. This transform
Review comment:
To confirm - there is no changes in behavior for old sync, right?
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Issue Time Tracking
-------------------
Worklog Id: (was: 445025)
Time Spent: 17h (was: 16h 50m)
> Use AVRO instead of JSON in BigQuery bounded source.
> ----------------------------------------------------
>
> Key: BEAM-8910
> URL: https://issues.apache.org/jira/browse/BEAM-8910
> Project: Beam
> Issue Type: Improvement
> Components: sdk-py-core
> Reporter: Kamil Wasilewski
> Priority: P3
> Time Spent: 17h
> Remaining Estimate: 0h
>
> The proposed BigQuery bounded source in Python SDK (see PR:
> [https://github.com/apache/beam/pull/9772)] uses a BigQuery export job to
> take a snapshot of the table and read from each produced JSON file. A
> performance improvement can be gain by switching to AVRO instead.
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