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Posh-PG

Access PostgreSQL Database from PowerShell.

Warning: This project is in early development stage, and everything could be changed. Do not use it in production environment.

Key Features

  • Multiple connection session
  • Saved query with parameter support
  • Customizable table formatter
  • Multiple environment by powershell profile
  • Session and Saved Query autocompletion

TODO

  • Confirmation for Update and Delete Query
  • Refine autocompletion code
  • Cross platform test
  • NuGet package
  • Customize table formatter
  • Edit stored procedure

Build

dotnet build

Load as a powershell module

Import-Module './PoshPG/bin/Debug/netcoreapp3.1/PoshPG.dll'

Quick Start

Connect to PostgreSQL Database

New-PgSession `
    -Name "dev" ` // The name of this session
    -Endpoint "localhost" ` // Database endpoint
    -Username "postgres" ` // Database username
    -Password "postgres" ` // Database password
    -Database "database" ` // Database to be connected

The connection will be saved in your powershell session and you can use Get-PgSession cmdlet to show all your connection

Run Query

Invoke-PgQuery `
    -Session dev ` // Name of your session
    -Text "select * from information_schema.schemata" // Sql statement

Save a query in powershell session

Create a Query with parameter

New-PgQuery `
    -Name GetSchemas `
    -Query " `
        select *
        from information_schema.tables
        where (
            @Schema is null or table_schema = @Schema
        )
    "

Execute saved query with parameter

Invoke-PgQuery `
    -Name GetSchemas ` // The name of a saved query
    -Parameters @{ Schema = "public" } // Parameters as a dictionary

Persistent you session and saved query in Powershell profile

Create a powershell script to define sessions and saved query and save as a ps1 script

Import-Module "./PoshPG/bin/Debug/netcoreapp3.1/PoshPG.dll" // Path of the module dll


// Create session
New-PgSession `
    -Endpoint "localhost" `
    -Username "postgres" `
    -Password "" `
    -Database "postgres" `
    -Name "dev" `
    -Quiet

// Set default session so you don't need to specify Session later
Set-PgDefaultSession -Session dev -Quiet

// Create saved query
New-PgQuery `
    -Name GetSchemas `
    -Query " `
        select *
        from information_schema.tables
        where (
            @Schema is null or table_schema = @Schema
        )
    "

Start powershell with the profile

pwsh -NoExit -NoProfile <Path of the profile you created>

Then you can Use your pg connection and query in this powershell session

Setting with Windows Terminal

Add the following code in your Windows Terminal setting

{
    "guid": "<GENERATE A UUID HERE>",
    "hidden": false,
    "name": "PowerShell Posh-PG",
    "commandline": "pwsh.exe -NoExit -NoProfile <PATH OF YOUR PROFILE>",
    "startingDirectory": "~"
}

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Access PostgreSQL Database from PowerShell

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