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https://issues.apache.org/jira/browse/BEAM-6769?focusedWorklogId=212729&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-212729
]
ASF GitHub Bot logged work on BEAM-6769:
----------------------------------------
Author: ASF GitHub Bot
Created on: 13/Mar/19 22:17
Start Date: 13/Mar/19 22:17
Worklog Time Spent: 10m
Work Description: tvalentyn commented on pull request #8047: [BEAM-6769]
write bytes to bigquery in python 2
URL: https://github.com/apache/beam/pull/8047#discussion_r265353833
##########
File path: sdks/python/apache_beam/io/gcp/big_query_query_to_table_it_test.py
##########
@@ -48,12 +49,15 @@
NEW_TYPES_OUTPUT_SCHEMA = (
'{"fields": [{"name": "bytes","type": "BYTES"},'
'{"name": "date","type": "DATE"},{"name": "time","type": "TIME"}]}')
-NEW_TYPES_OUTPUT_VERIFY_QUERY = ('SELECT date FROM `%s`;')
-# There are problems with query time and bytes with current version of
bigquery.
+NEW_TYPES_OUTPUT_VERIFY_QUERY = ('SELECT bytes, date, time FROM `%s`;')
NEW_TYPES_OUTPUT_EXPECTED = [
- (datetime.date(2000, 1, 1),),
- (datetime.date(2011, 1, 1),),
- (datetime.date(3000, 12, 31),)]
+ (b'xyw=', datetime.date(2011, 1, 1), datetime.time(23, 59, 59, 999999),),
+ (b'abc=', datetime.date(2000, 1, 1), datetime.time(0, 0),),
+ (b'dec=', datetime.date(3000, 12, 31),
+ datetime.time(23, 59, 59, 999999),),
+ (b'\xab\xac\xad', datetime.date(2000, 1, 1), datetime.time(0, 0),)]
+NEW_TYPES_OUTPUT_EXPECTED = [(base64.b64encode(row[0]).decode('utf-8'),)
Review comment:
`base64.b64encode` here makes the test work around the limitation in IO. I
think we need to understand first what is the intended behavior of the IO, we
can continue the conversation on the associated Jira.
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Issue Time Tracking
-------------------
Worklog Id: (was: 212729)
Time Spent: 1h (was: 50m)
> BigQuery IO does not support bytes in Python 3
> ----------------------------------------------
>
> Key: BEAM-6769
> URL: https://issues.apache.org/jira/browse/BEAM-6769
> Project: Beam
> Issue Type: Sub-task
> Components: sdk-py-core
> Reporter: Juta Staes
> Assignee: Juta Staes
> Priority: Major
> Time Spent: 1h
> Remaining Estimate: 0h
>
> In Python 2 you could write bytes data to BigQuery. This is tested in
>
> [https://github.com/apache/beam/blob/master/sdks/python/apache_beam/io/gcp/big_query_query_to_table_it_test.py#L186]
> Python 3 does not support
> {noformat}
> json.dumps({'test': b'test'}){noformat}
> which is used to encode the data in
>
> [https://github.com/apache/beam/blob/master/sdks/python/apache_beam/io/gcp/bigquery_tools.py#L959]
>
> How should writing bytes to BigQuery be handled in Python 3?
> * Forbid writing bytes into BigQuery on Python 3
> * Guess the encoding (utf-8?)
> * Pass the encoding to BigQuery
> cc: [~tvalentyn]
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