ASF GitHub Bot logged work on BEAM-3973:

                Author: ASF GitHub Bot
            Created on: 04/Apr/18 14:33
            Start Date: 04/Apr/18 14:33
    Worklog Time Spent: 10m 
      Work Description: iemejia commented on a change in pull request #4946: 
[BEAM-3973] Adds a parameter to the Cloud Spanner read connector that can 
disable batch API
URL: https://github.com/apache/beam/pull/4946#discussion_r179143055

 File path: 
 @@ -193,6 +196,52 @@ public void testQuery() throws Exception {
+  @Test
+  public void testReadAll() throws Exception {
+    DatabaseClient databaseClient =
 Review comment:
   We can make the data creation code into a method, since every test is 
reusing exactly the same code, and refactor this in the other tests too.

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Issue Time Tracking

    Worklog Id:     (was: 87563)
    Time Spent: 1h  (was: 50m)

> Allow to disable batch API in SpannerIO
> ---------------------------------------
>                 Key: BEAM-3973
>                 URL: https://issues.apache.org/jira/browse/BEAM-3973
>             Project: Beam
>          Issue Type: Bug
>          Components: io-java-gcp
>    Affects Versions: 2.4.0
>            Reporter: Mairbek Khadikov
>            Assignee: Mairbek Khadikov
>            Priority: Major
>             Fix For: 2.5.0
>          Time Spent: 1h
>  Remaining Estimate: 0h
> In 2.4.0, SpannerIO#read has been migrated to use batch API. The batch API 
> provides abstractions to scale out reads from Spanner, but it requires the 
> query to be root-partitionable. The root-partitionable queries cover majority 
> of the use cases, however there are examples when running arbitrary query is 
> useful. For example, reading all the table names from the 
> information_schema.* and reading the content of those tables in the next 
> step. 

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