Steps to reproduce the issue

Install Joomla on apache with MySQL or PostgresSQL database.

Expected result

Table template_styles with column home with type tinyint.

Actual result

Table template_styles has a column home with type varchar(7)

-- Table: ****_template_styles

CREATE TABLE ****_template_styles
(
  id serial NOT NULL,
  template character varying(50) NOT NULL DEFAULT ''::character varying,
  client_id smallint NOT NULL DEFAULT 0,
  home character varying(7) NOT NULL DEFAULT '0'::character varying,
  title character varying(255) NOT NULL DEFAULT ''::character varying,
  params text NOT NULL,
  CONSTRAINT aa360_template_styles_pkey PRIMARY KEY (id)
)
WITH (
  OIDS=FALSE
);
ALTER TABLE *****_template_styles
  OWNER TO ****;

Some plug-ins won't work with varchar.

System information (as much as possible)

CentOS 7, Apache + PHP5.6 + PostgresSQL 9.6

Additional comments

Doc about table:
https://docs.joomla.org/Tables/template_styles