google-cloud-spanner Questions

3

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Does the spanner supports renaming of columns and tables? That would be helpful while managing schema changes along with creating a new table from an existing one in a single statement.
Frankpledge asked 2/6, 2017 at 0:17

5

I follow this great blog. In this blog, the author has drawn a complete picture of all types of isolation and consistency and the relationship between them. But based on the Google's blog, there ...
Gunner asked 23/2, 2020 at 17:51

3

Since spanner does not have ddl feature like insert into dest as (select * from source_table) How do we select subset of a table and copy that rows into another table ? I am trying to write ...
Verniavernice asked 8/9, 2017 at 14:13

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Having the capability to compute a UTC timestamp as the default value for a column is a handy feature of most popular database solutions. Does Google Cloud Spanner support this? If not, is this a p...

4

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I am novice in GCP stack so I am so confused about several listed technologies for storing data: https://cloud.google.com/products/databases Specifically, I'm interested in the differences between ...

2

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I've a table of 860M rows in Google Cloud Spanner and I'm trying to understand how explanation works. The table has a string column geoid and there is an index at this column. When I run the foll...
Lienlienhard asked 21/10, 2019 at 22:36

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Is there any way to do local development with cloud spanner? I've taken a look through the docs and the CLI tool and there doesn't seem to be anything there. Alternatively, can someone suggest a SQ...

4

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Is it possible to snapshot a Google Cloud Spanner Database/table(s)? For compliance reasons we have to have daily snapshots of the current database that can be rolled back to in the event of a disa...
Winterize asked 28/2, 2017 at 21:42

2

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There seems to be an increasing overlapping and proliferation of cloud database technologies. In order to make sense of it a comparative approach might help. What are the exact differences betwee...

2

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I want to use JPA for micronaut. For that I am using io.micronaut.data:micronaut-data-hibernate-jpa:1.0.0.M1 library. Whenever I run my application and hit the endpoint to get the data, I get the f...

3

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Is there any reason why someone would use Bigtable instead of BigQuery? Both seem to support Read and Write operations with the latter offering also advanced 'Query' operations. I need to dev...

2

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I am trying to read a table from a Google spanner database, and write it to a text file to do a backup, using google dataflow with the python sdk. I have written the following script: from __fut...

2

The Cloud Spanner docs say that Spanner can export/import Avro format. Can this path also be used for batch ingestion of Avro data generated from another source? The docs seem to suggest it can onl...
Grimsley asked 14/8, 2018 at 14:45

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Is cloud spanner the only solution for horizontal scaling of mysql instances on the google cloud? Is there a way to scale in cloud sql?
Runty asked 19/7, 2017 at 22:58

2

This question is a follow-up to this one. I am trying to use apache beam to read data from a google spanner table (and then do some data processing). I wrote the following minimum example using the...
Swedenborgianism asked 11/10, 2017 at 9:1

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I am trying to use Apache Beam to create a Dataflow pipeline and I am not able to follow the documentation and cannot find any examples. The pipeline is simple. Create a pipeline Read from a pub...

1

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Is there a performance penalty (or improvement) for using STRING(MAX) instead of some fixed limit like STRING(256)?
Iridectomy asked 30/8, 2017 at 15:56

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I have the following query optimization problem in Spanner, and hoping there's a trick I'm missing that will help me bend the query planner to my will. Here's the simplified schema: create table ...
Sole asked 8/6, 2017 at 19:22

2

After reading the pricing of the new google relational database Spanner, it states that the cost is based on storage and use. They charge $0.9 by hour per node. The question is: if I create the dat...
Mince asked 16/3, 2017 at 18:35

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Is it possible to issue something like RENAME COLUMN col1 col2 in Google Cloud Spanner? It looks from the DDL that this isn't possible; if not, is this a design choice or a limitation whilst in ...

1

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It's not clear how to run a query (or conduct an API call) to list all tables. Is this possible with Spanner?
Latrell asked 21/2, 2017 at 5:30

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There are two different APIs provided by Cloud Spanner. What’s the difference between Cloud Spanner read vs Cloud Spanner SQL API?
Comptroller asked 17/2, 2017 at 16:45

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Does Google Cloud Spanner support stored procedures? I've had a quick search through the docs at https://cloud.google.com/spanner/docs/overview but couldn't find any reference to stored procs / u...

1

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I tried to read the document multiple times but failed to understand it. Can someone explain it in layman's terms?

1

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I'm not sure why the press in general says that Google's TrueTime API is hard to replicate (Wired, Slashdot, etc). I can understand how it would be a tough thing to get the low error intervals tha...
Guillermoguilloche asked 22/8, 2013 at 15:32

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