pmpp 1.2.2

This Release
pmpp 1.2.2
Date
Status
Stable
Latest Unstable
pmpp 0.0.1 —
Other Releases
Abstract
Poor Man's Parallel Processing
Description
Leverage libpq in asynchronous mode to run result-set-similar queries against one or more databases and return the results as a single result set
Released By
chuinker
License
The PostgreSQL License
Resources
Special Files
Tags

Extensions

pmpp 1.2.2
Leverage libpq in asynchronous mode to run result-set-similar queries against one or more databases and return the results as a single result set

Documentation

CHANGELOG
Change Log
LICENSE
Copyright and License

README

Poor Man's Parallel Processing (PMPP)

PGXN version

PMPP is an extension that provides a means of manually dividing one large query into several smaller ones that return the same shape of result set, allowing for additional query layers on the combined set. This is accomplished through use of polymorphic functions performing asynchronous libpq commands and queue management.

USAGE

For function documentation and examples, see the pmpp.md file.

INSTALLATION

Requirements: PostgreSQL 9.4 or greater.

Recommended: postgresql_fdw. Having foreign server definitions and user mappings makes for cleaner function invocations.

In the directory where you downloaded pmpp, run

bash make install

Log into PostgreSQL.

Run the following command:

sql CREATE EXTENSION pmpp;

This will create a role (if it does not already exist) named pmpp. To allow user to execute pmpp functions, grant them the role pmpp, like this:

sql GRANT pmpp to <role>;

PMPP makes extensive use of features introduced in PostgreSQL 9.4.0 (JSONB, WITH ORDINALITY, etc).

UPGRADE

Run "make install" same as above to put the script files and libraries in place. Then run the following in PostgreSQL itself:

sql ALTER EXTENSION pmpp UPDATE TO '<latest version>';