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Bigtop::Backend::SQL::Postgres(3) User Contributed Perl Documentation Bigtop::Backend::SQL::Postgres(3)

Bigtop::Backend::SQL::Postgres - backend to generate sql for Postgres database creation

If your bigtop file looks like this:

    config {
        SQL  Postgres {}
    }
    app App::Name {
    }

and there are table and/or sequence blocks in the app block, this module will make docs/schema.postgres (relative to the build_dir) when you type:

    bigtop app.bigtop SQL

or

    bigtop app.bigtop all

You can feed that file directly to psql, once you have created a database. That is type:

    createdb dbname -U user
    psql dbname -U user < docs/schema.postgres

This is a Bigtop backend which generates SQL Postgres can understand.

This module defines no keywords. Look in Bigtop::SQL for a list of the keywords you can use in table and sequence blocks.

This module does provide a couple of bits of shorthand (some aren't so short) for the arguments of the is field statement.

    field id {
        is int4, primary_key, auto;
    }

This translates into:

    id int4 PRIMARY KEY DEFAULT NEXTVAL( 'your_sequence' ),

You can also type 'assign_by_sequence' instead of 'auto'. That might aid understanding, if you can type it correctly.

Note that using 'primary_key' instead of the literal 'PRIMARY KEY' is important. It tells the SQL and the Model back ends that this is the primary key.

To keep podcoverage tests happy.
backend_block_keywords
Tells tentmaker that I understand these config section backend block keywords:

    no_gen
    template
    
what_do_you_make
Tells tentmaker what this module makes. Summary: docs/schema.postgres.
gen_SQL
Called by Bigtop::Parser to get me to do my thing.
setup_template
Called by Bigtop::Parser so the user can substitute an alternate template for the hard coded one here.

Phil Crow <crow.phil@gmail.com>

Copyright (C) 2005 by Phil Crow

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.6 or, at your option, any later version of Perl 5 you may have available.

2022-04-09 perl v5.32.1

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