trino | Official repository of Trino , the distributed SQL query
kandi X-RAY | trino Summary
kandi X-RAY | trino Summary
After building Trino for the first time, you can load the project into your IDE and run the server. We recommend using IntelliJ IDEA. Because Trino is a standard Maven project, you easily can import it into your IDE. In IntelliJ, choose Open Project from the Quick Start box or choose Open from the File menu and select the root pom.xml file.
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Top functions reviewed by kandi - BETA
- Creates a partition writer .
- Load partition .
- Creates an orc page source .
- Adapts a parameter to a method handle .
- Convert an object to an expression .
- Sets up the webi module .
- Get the pipeline stats .
- Gets the stats for the task .
- Creates plan node stats from the given task stats .
- Creates a join plan for the given criteria .
trino Key Features
trino Examples and Code Snippets
Community Discussions
Trending Discussions on trino
QUESTION
Sample Data:
shopper_id last_purchase_timestamp active_p30 active_p60 active_over_p90 1 2022-03-02 1:20:00 TRUE TRUE TRUE 2 2022-03-01 1:30:00 TRUE TRUE TRUE 3 2022-02-28 1:24:03 TRUE TRUE TRUE 4 2022-02-02 21:22:26 FALSE TRUE TRUEI want to count if the shopper was active (as in made their last purchase) in the last 30 days (starting march 5th), last 60 days, etc.
My goal is to find how many shoppers bought their last item in the last 30 days, how many shoppers bought their last item in the last 60 days etc. However I do not want to double count.
What I've attempted:
...ANSWER
Answered 2022-Mar-29 at 19:02Add both upper and lower bounds to the filter so they do not intersect. Something along this lines:
QUESTION
I'm trying to install Trino using RPM on Red Hat Enterprise Linux distribution. I install the Trino dependencies using the following commands:
...ANSWER
Answered 2022-Jan-26 at 10:17An answers has been provided by @hashhar on this Github Issue if you actually have the correct dependencies installed:
QUESTION
I'm trying to calculate the City area size by using Geospatial Functions like the bing_tiles_around(), geometry_union(), and st_area() with the below sample data.
...ANSWER
Answered 2022-Jan-12 at 10:50bing_tiles_around returns array of BingTile while geometry_union expects array of Geometry so you need to transform one to another:
QUESTION
I am trying to insert rows into a table with a query of this form:
...ANSWER
Answered 2021-Dec-02 at 17:01I had the order of the CTE and INSERT backwards.
This works:
QUESTION
I have a Trino cluster configured to use LDAP and I want to use Superset to connect to it.
The Trino cluster uses HTTPS with a self signed certificate
I managed to configure Superset to use LDAP, that's not the problem. I also managed to query Trino by having the following configuration:
sqlalchemy URI: trino://myuser:mypassword@trino_server:8443,
security extra config: {"connect_args": {"verify": false}}
Now here's the problem: Under the security tab there's a checkbox that says "Impersonate logged in user (Presto, Trino, Hive and GSheets)" . I checked the box, and still the queries I execute run with the user "myuser" which is configured in the sqlalchemy URI, instead of the logged in user.
I'm using Superset version 1.3.2
Does anybody know how to solve this?
...ANSWER
Answered 2021-Nov-08 at 19:34There are two components to get user impersonation working with Trino and Superset:
- A version of Superset that supports user impersonation with Trino.
This was added officially in 1.3.0, and since you're on 1.3.2 that shouldn't be a problem.
- A Trino client that supports user impersonation.
AFAIK the only Python client that currently works with Superset to connect to Trino is sqlalchemy-trino. I couldn't find any specific changes made for user impersonation until 0.4.0, but I have gotten this working with the older 0.3.0 version.
There may be some other possibilities that could prevent user impersonation from working, but less likely:
Make sure that all containers have a working version of sqlalchemy-trino installed. This depends on how you add Python requirements, but I believe I've seen cases where Superset containers don't have the same dependencies, i.e. the superset_app container has the correct module, but not the superset_worker container.
Make sure that the HTTP headers in the requests going to Trino are not being modified. User impersonation works by authenticating with basic authentication but impersonating the user added in a HTTP header called 'X-Trino-User'. If the HTTP header is removed or changed, then the user impersonation won't work as expected.
QUESTION
First of all, the format of the data cannot be disclosed, but the bucket table is created through the following table creation statements and options in hive.
1. Create DDL
...ANSWER
Answered 2021-Nov-30 at 04:53Trino implements bucket validation. For this error to be thrown, the table is most likely truly corrupt.
Bucket validation verifies that data is in the correct bucket as it reads, and therefore attempts to prevent incorrect query results.
To test, the following SET SESSION clause can be added to your Trino query:
SET SESSION hive.validate_bucketing=false
The query will run, but it should be examined for incorrectly bucketed data.
QUESTION
I have a list that contains SQL code that can be executed in an external Trino CLI. So for instance, my nested list would look like:
...ANSWER
Answered 2021-Nov-27 at 21:47Instead of actually running the query, you can ask Trino if the query syntax is valid. Just add the following to each of your queries:
EXPLAIN (TYPE VALIDATE)
https://trino.io/docs/current/sql/explain.html#explain-type-validate
QUESTION
I am setting up a development server for Trino using Trino's docker image. I need to integrate Trino to LDAP so we decided to secure Trino behind a load balancer (see here) but after enabling password authentication, we see the following when we access Trino (https://trino_domain) WebUI:
My config.properties are as follows:
By right I should be prompted with the usual login screen with the password field enabled. There is no errors in the logs. The only warning I could find is
I could not find anything on google on this so I am not sure what is missing/wrong. Please help.
...ANSWER
Answered 2021-Nov-22 at 05:24This is expected behavior when attempting to connect via http when the coordinator is configured for https.
This video might help you configure Trino with a load balancer and LDAP: https://www.youtube.com/watch?v=KiMyRc3PSh0
QUESTION
Currently I am using Spark 3.2.0 with Trino 363. I am trying to connect to Trino but I am getting an error. Error message is as below.
Exception in thread "main" java.sql.SQLException: Unrecognized connection property 'url'
Please find below code which I am using.
...ANSWER
Answered 2021-Nov-19 at 16:10I was able to run spark 3.2.0 with Trino 363. I have commented out below mentioned line and re build JDBC driver.
QUESTION
Athena (Trino SQL) parsing JSON document (table column called document 1 in Athena) using fields (dot notation)
If the underlying json (table column called document 1 in Athena) is in the form of {a={b ...
I can parse it in Athena (Trino SQL) using
ANSWER
Answered 2021-Sep-30 at 19:06Dot notation works only for columns types as struct<…>. You can do that for JSON data, but judging from the error and your description this seems not to be the case. I assume your column is of type string.
If you have JSON data in a string column you can use JSON functions to parse and extract parts of them with JSONPath.
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Java 11.0.11+, 64-bit
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