pqrs | Command line tool for inspecting Parquet files | Serialization library

 by   manojkarthick Rust Version: v0.2.2 License: Apache-2.0

kandi X-RAY | pqrs Summary

kandi X-RAY | pqrs Summary

pqrs is a Rust library typically used in Utilities, Serialization, Nodejs, Amazon S3, Hadoop applications. pqrs has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub, GitLab.

Command line tool for inspecting Parquet files
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            kandi-support Support

              pqrs has a low active ecosystem.
              It has 153 star(s) with 16 fork(s). There are 3 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 8 open issues and 10 have been closed. On average issues are closed in 39 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of pqrs is v0.2.2

            kandi-Quality Quality

              pqrs has no bugs reported.

            kandi-Security Security

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

            kandi-License License

              pqrs 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.

            kandi-Reuse Reuse

              pqrs releases are available to install and integrate.
              Installation instructions are not available. Examples and code snippets are available.

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            pqrs Key Features

            No Key Features are available at this moment for pqrs.

            pqrs Examples and Code Snippets

            pqrs ,Running,Subcommand: schema
            Rustdot img1Lines of Code : 47dot img1License : Non-SPDX (NOASSERTION)
            copy iconCopy
            ❯ pqrs schema data/cities.parquet
            Metadata for file: data/cities.parquet
            
            version: 1
            num of rows: 3
            created by: parquet-mr version 1.5.0-cdh5.7.0 (build ${buildNumber})
            message hive_schema {
              OPTIONAL BYTE_ARRAY continent (UTF8);
              OPTIONAL group co  
            pqrs ,Running
            Rustdot img2Lines of Code : 22dot img2License : Non-SPDX (NOASSERTION)
            copy iconCopy
            ❯ pqrs --help
            pqrs 0.1.1
            Manoj Karthick
            Apache Parquet command-line utility
            
            USAGE:
                pqrs [FLAGS] [SUBCOMMAND]
            
            FLAGS:
                -d, --debug      Show debug output
                -h, --help       Prints help information
                -V, --version    Prints version informat  
            pqrs ,Running,Subcommand: merge
            Rustdot img3Lines of Code : 10dot img3License : Non-SPDX (NOASSERTION)
            copy iconCopy
            ❯ pqrs merge --input data/pems-1.snappy.parquet data/pems-2.snappy.parquet --output data/pems-merged.snappy.parquet
            
            ❯ ls -al data
            total 408
            drwxr-xr-x   6 manojkarthick  staff     192 Feb 14 08:53 .
            drwxr-xr-x  20 manojkarthick  staff     640 Feb 14  

            Community Discussions

            QUESTION

            How can I detect multiple mouse clicks?
            Asked 2021-May-26 at 20:21

            A complete noob here. I'm trying to simulate an old phone keyboard, when there were physical buttons that were grouped like ABC, DEF, ..., PQRS, etc, and you could click a button once for the first letter, twice for the second and so on. I know about the existence of mousePressed() and doubleCliked() functions, but is there a way to detect triple and quadruple clicks?

            ...

            ANSWER

            Answered 2021-May-26 at 20:21

            The best way to do what you are describing is to have variables that store which button was pressed last, how many times it has been pressed in a row, and what time it was pressed. Then you can determine whether or not to increment the count if the same button is pressed again in a particular window of time.

            Source https://stackoverflow.com/questions/67711983

            QUESTION

            How to use XSLT with If condition and copy of elements
            Asked 2021-May-23 at 05:08

            I have an XSLT with

            ...

            ANSWER

            Answered 2021-May-22 at 05:41

            I am guessing (!) you want to do something like:

            Source https://stackoverflow.com/questions/67646392

            QUESTION

            TypeError: Cannot set property 'name' of undefined
            Asked 2021-May-13 at 11:16

            I am trying to map some values of JSON response to another variable but getting some error "Cannot set property name of undefined"

            ...

            ANSWER

            Answered 2021-May-13 at 11:16

            action[i] is undefined if not initialized. So, before setting any properties to it you need to initialize it, like so:

            Source https://stackoverflow.com/questions/67518022

            QUESTION

            How to hide an option in a dropdown menu PHP?
            Asked 2021-Mar-25 at 06:54

            I am learning PHP, and would like to know if there is any way to hide an option depending on what I get, basiccaly this is my code it's simple.

            ...

            ANSWER

            Answered 2021-Mar-24 at 13:24

            Based on the above requirement, try this:

            Source https://stackoverflow.com/questions/66781489

            QUESTION

            Iterate Over a List of Strings by Character in Python
            Asked 2021-Mar-15 at 17:31
            Phone Number = "3662277815781519518916891"
            Words = ["foo", "bar", "baz", "foobar", "emo", "cap", "car", "cat"]
            foo -> 366
            
            ...

            ANSWER

            Answered 2021-Mar-15 at 17:31

            Keep it simple. The dictionary should take a single letter and convert it to a digit.

            {'a':'2', 'b':'2', 'c':'2', 'd':'3', ...}

            Source https://stackoverflow.com/questions/66642517

            QUESTION

            PostgreSQL: Count Number of Occurrences in Columns
            Asked 2021-Mar-01 at 03:54
            BACKGROUND

            I have three large tables (employee_info, driver_info, school_info) that I have joined together on common attributes using a series of LEFT OUTER JOIN operations. After each join, the resulting number of records increased slightly, indicating that there are duplicate IDs in the data. To try and find all of the duplicates in the IDs, I dumped the ID columns into a temp table like so:

            Original Dump of ID Columns first_name last_name employee_id driver_id school_id Mickey Mouse 1234 abcd wxyz Donald Duck 2423 heca qwer Mary Poppins 1111 acbe aaaa Wiley Cayote 1234 strf aaaa Daffy Duck 1256 acbe pqrs Bugs Bunny 9999 strf yxwv Pink Panther 2222 zzzz zzaa Michael Archangel 0000 rstu aaaa

            In this overly simplified example, you will see that IDs 1234 (employee_id), strf (driver_id), and aaaa (school_id) are each duplicated at least once. I would like to add a count column for each of the ID columns, and populate them with the count for each ID used, like so:

            ID Columns with Counts first_name last_name employee_id employee_id_count driver_id driver_id_count school_id school_id_count Mickey Mouse 1234 2 abcd 1 wxyz 1 Donald Duck 2423 1 heca 1 qwer 1 Mary Poppins 1111 1 acbe 1 aaaa 3 Wiley Cayote 1234 2 strf 2 aaaa 3 Daffy Duck 1256 1 acbe 1 pqrs 1 Bugs Bunny 9999 1 strf 2 yxwv 1 Pink Panther 2222 1 zzzz 1 zzaa 1 Michael Archangel 0000 1 rstu 1 aaaa 3

            You can see that IDs 1234 and strf each have 2 in the count, and aaaa has 3. After generating this table, my goal is to pull out all records where any of the counts are greater than 1, like so:

            All Records with One or More Duplicate IDs first_name last_name employee_id employee_id_count driver_id driver_id_count school_id school_id_count Mickey Mouse 1234 2 abcd 1 wxyz 1 Mary Poppins 1111 1 acbe 1 aaaa 3 Wiley Cayote 1234 2 strf 2 aaaa 3 Bugs Bunny 9999 1 strf 2 yxwv 1 Michael Archangel 0000 1 rstu 1 aaaa 3 Real World Perspective

            In my real-world work, the JOIN'd table contains 100 columns, 15 different ID fields and over 30,000 records, and the final table came out to be 28 more than the original. This may seem like a small amount, but each of the 28 represent a broken link that we must fix.

            Is there a simple way to get the counts populated like in the second table above? I have been wrestling with this for hours already, and have not been able to make this work. I tried some aggregate functions, but they cannot be used in table UPDATE operations.

            ...

            ANSWER

            Answered 2021-Mar-01 at 03:54

            The COUNT function, when used as an analytic function, can do what you want here, e.g.

            Source https://stackoverflow.com/questions/66415757

            QUESTION

            Why I am not able to access string individual chars using index
            Asked 2021-Feb-11 at 22:01
            string strMap[8] = {"abc", "def", "ghi", "jkl", "mno", "pqrs", "tuv", "wxyz"};
            //string digits received as parameter in function // digits = "234";
            
            ...

            ANSWER

            Answered 2021-Feb-11 at 22:01

            This line makes no sense:

            Source https://stackoverflow.com/questions/66161993

            QUESTION

            Having multiple double quotes inside quoted string csv file
            Asked 2021-Feb-08 at 17:15

            I am having a csv file, quotes around each field.

            there are some fields, which can have multiple double quotes inside them. I want to escape each of them with additional double quote.

            ","ABC "XYZ" PQRS","
            ","ABC "XYZ"","
            ","ABC "A" "B" TEST","
            ","ABC 2.5" "C" Test","

            I took help from the link and able to cover for scenarios with single double quote inside content, using regular expression [regex]$r='(","[^"]+"[^"]+?",")'. But, stuck up in the cases, where there are multiple double quotes inside content.

            ...

            ANSWER

            Answered 2021-Feb-08 at 17:15

            It is probably easier to search for the valid delimiters (e.g. "\s*,\s*") and split your lines into fields, and than simply correct each (invalid) single double quote with 2 quotes in each field.
            Than rebuild the fields to a record by surrounding the fields with double quotes and join them with the csv (comma) delimiter

            Input

            Source https://stackoverflow.com/questions/66096193

            QUESTION

            Sql query to print all Department Names and the name of the newest employee in that department
            Asked 2021-Jan-26 at 13:07

            Am Kind of new to MySql and am trying to retrieve a query but got struck for some time.

            Sample data set:

            ...

            ANSWER

            Answered 2021-Jan-26 at 06:39

            On MySQL 8+ using ROW_NUMBER, we can try:

            Source https://stackoverflow.com/questions/65896841

            QUESTION

            Hackerrank SQL problem to solve in Oracle's SQL version
            Asked 2021-Jan-26 at 11:08

            Query the two cities in STATION with the shortest and longest CITY names, as well as their respective lengths (i.e.: number of characters in the name). If there is more than one smallest or largest city, choose the one that comes first when ordered alphabetically. The STATION table is described as follows:

            Sample Input

            For example, CITY has four entries: DEF, ABC, PQRS and WXY.

            Sample Output

            ...

            ANSWER

            Answered 2021-Jan-26 at 09:25

            A little bit of analytic functions; sample data in lines #1 - 6; query begins at line #7.

            Source https://stackoverflow.com/questions/65898496

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

            Vulnerabilities

            No vulnerabilities reported

            Install pqrs

            You can download it from GitHub, GitLab.
            Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.

            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:

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