hive | Apache Hive data warehouse software

by apache Java Version: rel/release-4.0.0-alpha-2 License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | hive Summary

hive is a Java library typically used in Big Data, Spark, Hadoop applications. hive has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has medium support. You can download it from GitHub.

Apache Hive

Support

Quality

Security

License

Reuse

Support

hive has a medium active ecosystem.

It has 4852 star(s) with 4431 fork(s). There are 335 watchers for this library.

It had no major release in the last 6 months.

hive has no issues reported. There are 93 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of hive is rel/release-4.0.0-alpha-2

Quality

hive has no bugs reported.

Security

hive has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

hive is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

hive releases are not available. You will need to build from source code and install.

Build file is available. You can build the component from source.

Installation instructions, examples and code snippets are available.

Top functions reviewed by kandi - BETA

kandi has reviewed hive and discovered the below as its top functions. This is intended to give you an instant insight into hive implemented functionality, and help decide if they suit your requirements.

Implement the fastSubtraction .
Analyze create table .
Determine if a map join can be performed .
Compares lazy object
Retrieves aggr statistics for the adgr table .
Reads encoded columns .
Given a UDF and a new UDF node which is equivalent to a UDF .
Read a field .
Perform a shared work optimization .
Sets the map work .

Get all kandi verified functions for this library.

hive Key Features

No Key Features are available at this moment for hive.

hive Examples and Code Snippets

No Code Snippets are available at this moment for hive.

Community Discussions

Trending Discussions on hive

How to duplicate row based on int column

Getting java.lang.ClassNotFoundException when I try to do spark-submit, referred other similar queries online but couldnt get it to work

SQL: Extract from messy JSON nested field with backslashes

Hive Explode the Array of Struct key: value:

SQL: JSON Extract from nested object

Flutter dart export hive saved data to file to retrieve later

Hive: Query executing from hours

Drop a hive table named "union"

Issue in reading records from hive bucket

query spark dataframe on max column value

QUESTION

How to duplicate row based on int column

Asked 2021-Jun-15 at 22:07

If I have a table like this in Hive:

...

ANSWER

Answered 2021-Jun-15 at 22:07

Using space() you can produce a string of spaces with lenght=sampling_rate-1 , split it and explode with lateral view, it will duplicate rows.

Demo:

Source https://stackoverflow.com/questions/67993016

QUESTION

Getting java.lang.ClassNotFoundException when I try to do spark-submit, referred other similar queries online but couldnt get it to work

Asked 2021-Jun-14 at 09:36

I am new to Spark and am trying to run on a hadoop cluster a simple spark jar file built through maven in intellij. But I am getting classnotfoundexception in all the ways I tried to submit the application through spark-submit.

My pom.xml:

...

ANSWER

Answered 2021-Jun-14 at 09:36

You need to add scala-compiler configuration to your pom.xml. The problem is without that there is nothing to compile your SparkTrans.scala file into java classes.

Add:

Source https://stackoverflow.com/questions/67934425

QUESTION

SQL: Extract from messy JSON nested field with backslashes

Asked 2021-Jun-11 at 21:04

I have a table that has some rows with normal JSON and some with escaped values in the JSON field (backslashes)

id obj 1 {"is_from_shopping_bag":true,"products":[{"price":{"amount":"18.00","currency":"USD","offset":100,"amount_with_offset":"1800"},"product_id":"1234","quantity":1}],"source":"cart"} 2 {"is_from_shopping_bag":"","products":"[{\ "product_id\ ":\ "2345\ ",\ "price\ ":{\ "currency\ ":\ "USD\ ",\ "amount\ ":\ "140.00\ ",\ "offset\ ":100},\ "quantity\ ":1}]"}

(Note: I needed to include a space after the backslashes in the above table so that they would show up in the github generated markdown table -- my actual table does not include those spaces between the backslash and the quote character)

I am doing a sql query in Hive to get the 'currency' field.

Currently I can run

...

ANSWER

Answered 2021-Jun-11 at 20:54

Replace \" with " using regexp_replace like this:

Source https://stackoverflow.com/questions/67939682

QUESTION

Hive Explode the Array of Struct key: value:

Asked 2021-Jun-11 at 11:37

This is the below Hive Table

...

ANSWER

Answered 2021-Jun-11 at 11:37

Use laterral view [outer] inline to get struct elements already etracted and use conditional aggregation to get values corresponting to some keys grouped in single row, use group_by user_id.

Demo:

Source https://stackoverflow.com/questions/67935352

QUESTION

SQL: JSON Extract from nested object

Asked 2021-Jun-11 at 00:12

I have a table like this

id obj 1 {"is_from_shopping_bag":true,"products":[{"price":{"amount":"18.00","currency":"USD","offset":100,"amount_with_offset":"1800"},"product_id":"1234","quantity":1}],"source":"cart"} 2 {"is_from_shopping_bag":false,"products":[{"price":{"amount":"80.00","currency":"USD","offset":100,"amount_with_offset":"8000"},"product_id":"2345","quantity":1}],"source":"pdp"}

I am doing a sql query in Hive to get the 'currency' field.

Currently I can run

...

ANSWER

Answered 2021-Jun-11 at 00:12

To get the currency of the first product use:

Source https://stackoverflow.com/questions/67929710

QUESTION

Flutter dart export hive saved data to file to retrieve later

Asked 2021-Jun-09 at 18:46

I am developing a barcode app and save the data to hive. What I need to know is there a way to export the saved hive database to a backup file and be able to retrieve it for instance if the app crashed or your phone is lost. This is for blind accessibility. Want to export the data to a file that I can save to my pc to store and if something happens I do not have to scan all the products again to build the database. If hive can not do this can someone point me in a direction of which flutter dart database can do this. Thank you

Ok the answer did not work for me. Here is a copy of my model file

...

ANSWER

Answered 2021-Jun-08 at 10:24

There is not a "out-of-the-box" solution for that as far as I know. It depends a lot on your use case of how you want to do that (since there are many ways). For a complete example of how I did that for my app, you can take a look here: https://github.com/Kounex/obs_blade/blob/master/lib/views/settings/logs/log_detail/log_detail.dart (I made use of the share package in order to easily export it - but that's not necessary)

Flutter also has its own documentation on reading and writing files (https://flutter.dev/docs/cookbook/persistence/reading-writing-files) - I will add some information to round it up:

Storage location

First of all we have to think about where to store the "backup file". Flutter exposes common paths on its own which you can make use of (additionally the path_provider package gives you more flexibility). If you want this backup file to be temporarily, you can for example use:

Source https://stackoverflow.com/questions/67867850

QUESTION

Hive: Query executing from hours

Asked 2021-Jun-08 at 23:08

I'm try to execute the below hive query on Azure HDInsight cluster but it's taking unprecedented amount of time to finish. Did implemented hive settings but of no use. Below are the details:

Table

...

ANSWER

Answered 2021-Jun-07 at 03:19

if you don't have index on your fk columns , you should add them for sure , here is my suggestion:

Source https://stackoverflow.com/questions/67864692

QUESTION

Drop a hive table named "union"

Asked 2021-Jun-08 at 20:19

I am trying to drop a table names "union" but I keep getting an error. I am not sure who and how created that table, but nothing works on it, including describe or select. Using "hdfs dfs -ls" outside of hive, I can see that table exists and there is data in it, but cannot drop the table. I am assuming there may be a problem because the table is called "union" and the error I get is

"cannot recognize input near 'union'".

How can I drop the table?

...

ANSWER

Answered 2021-Jun-08 at 20:18

to escape in hive you can use bakctick:

Source https://stackoverflow.com/questions/67893915

QUESTION

Issue in reading records from hive bucket

Asked 2021-Jun-08 at 12:14

I have created a hive table with 4 buckets.. I can read the data from nth bucket ..

For example..

...

ANSWER

Answered 2021-Jun-07 at 07:34

Try UNION ALL:

Source https://stackoverflow.com/questions/67866787

QUESTION

query spark dataframe on max column value

Asked 2021-Jun-08 at 12:06

I have a hive external partitioned table with following data structure:

...

ANSWER

Answered 2021-Jun-08 at 12:06

max_version is of type org.apache.spark.sql.DataFrame its not Double. You have to extract value from the DataFrame.

Check below code.

Source https://stackoverflow.com/questions/67885952

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install hive

Installation Instructions and a quick tutorial: https://cwiki.apache.org/confluence/display/Hive/GettingStarted. A longer tutorial that covers more features of HiveQL: https://cwiki.apache.org/confluence/display/Hive/Tutorial. The HiveQL Language Manual: https://cwiki.apache.org/confluence/display/Hive/LanguageManual.
Installation Instructions and a quick tutorial: https://cwiki.apache.org/confluence/display/Hive/GettingStarted
A longer tutorial that covers more features of HiveQL: https://cwiki.apache.org/confluence/display/Hive/Tutorial
The HiveQL Language Manual: https://cwiki.apache.org/confluence/display/Hive/LanguageManual

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

Find more information at: