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https://issues.apache.org/jira/browse/BEAM-8841?focusedWorklogId=393643&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-393643
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ASF GitHub Bot logged work on BEAM-8841:
----------------------------------------
Author: ASF GitHub Bot
Created on: 26/Feb/20 17:38
Start Date: 26/Feb/20 17:38
Worklog Time Spent: 10m
Work Description: chunyang commented on pull request #10979: [BEAM-8841]
Support writing data to BigQuery via Avro in Python SDK
URL: https://github.com/apache/beam/pull/10979#discussion_r384652808
##########
File path: sdks/python/apache_beam/io/gcp/bigquery_avro_tools.py
##########
@@ -0,0 +1,135 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""Tools used tool work with Avro files in the context of BigQuery.
+
+Classes, constants and functions in this file are experimental and have no
+backwards compatibility guarantees.
+
+NOTHING IN THIS FILE HAS BACKWARDS COMPATIBILITY GUARANTEES.
+"""
+
+from __future__ import absolute_import
+from __future__ import division
+
+BIG_QUERY_TO_AVRO_TYPES = {
+ "RECORD": "record",
+ "STRING": "string",
+ "BOOLEAN": "boolean",
+ "BYTES": "bytes",
+ "FLOAT": "double",
+ "INTEGER": "long",
+ "TIME": {
+ "type": "long",
+ "logicalType": "time-micros",
Review comment:
The same code in the [Java
SDK](https://github.com/apache/beam/blob/911472cdcca7a31d1a8c690d75097b9ded9eb054/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigquery/BigQueryAvroUtils.java#L68)
doesn't seem to support logical types, so behavior is a bit different here.
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Issue Time Tracking
-------------------
Worklog Id: (was: 393643)
Time Spent: 0.5h (was: 20m)
> Add ability to perform BigQuery file loads using avro
> -----------------------------------------------------
>
> Key: BEAM-8841
> URL: https://issues.apache.org/jira/browse/BEAM-8841
> Project: Beam
> Issue Type: Improvement
> Components: io-py-gcp
> Reporter: Chun Yang
> Priority: Minor
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Currently, JSON format is used for file loads into BigQuery in the Python
> SDK. JSON has some disadvantages including size of serialized data and
> inability to represent NaN and infinity float values.
> BigQuery supports loading files in avro format, which can overcome these
> disadvantages. The Java SDK already supports loading files using avro format
> (BEAM-2879) so it makes sense to support it in the Python SDK as well.
> The change will be somewhere aroundÂ
> [{{BigQueryBatchFileLoads}}|https://github.com/apache/beam/blob/3e7865ee6c6a56e51199515ec5b4b16de1ddd166/sdks/python/apache_beam/io/gcp/bigquery_file_loads.py#L554].
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