PostgreSQL draft

https://github.com/FreshRSS/FreshRSS/issues/416
Based on @Damstre work https://github.com/FreshRSS/FreshRSS/pull/1071
Not tested

2 files changed, 93 insertions, 0 deletions

diff --git a/app/SQL/install.sql.mysql.php b/app/SQL/install.sql.mysql.php
index c78839ef7..92a00aecc 100644
--- a/app/SQL/install.sql.mysql.php
+++ b/app/SQL/install.sql.mysql.php
@@ -1,4 +1,6 @@
 <?php
+define('SQL_CREATE_DB', 'CREATE DATABASE IF NOT EXISTS %1$s DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;');
+
 define('SQL_CREATE_TABLES', '
 CREATE TABLE IF NOT EXISTS `%1$scategory` (
 	`id` SMALLINT NOT NULL AUTO_INCREMENT,	-- v0.7
diff --git a/app/SQL/install.sql.pgsql.php b/app/SQL/install.sql.pgsql.php
new file mode 100644
index 000000000..0f243bdb5
--- /dev/null
+++ b/app/SQL/install.sql.pgsql.php
@@ -0,0 +1,91 @@
+<?php
+define('SQL_CREATE_TABLES', '
+CREATE TABLE IF NOT EXISTS "%1$scategory" (
+	id SERIAL PRIMARY KEY,
+	name varchar(255) UNIQUE NOT NULL
+)
+
+CREATE TABLE IF NOT EXISTS "%1$sfeed" (
+	id SERIAL PRIMARY KEY,
+	url varchar(511) UNIQUE NOT NULL,
+	category SMALLINT DEFAULT 0,
+	name varchar(255) NOT NULL,
+	website varchar(255),
+	description text,
+	lastUpdate int DEFAULT 0,
+	priority smallint NOT NULL DEFAULT 10,
+	pathEntries varchar(511) DEFAULT NULL,
+	httpAuth varchar(511) DEFAULT NULL,
+	error boolean DEFAULT FALSE,
+	keep_history INT NOT NULL DEFAULT -2,
+	ttl INT NOT NULL DEFAULT -2,
+	cache_nbEntries int DEFAULT 0,
+	cache_nbUnreads int DEFAULT 0,
+	FOREIGN KEY (category) REFERENCES "%1$scategory" (id) ON DELETE SET NULL ON UPDATE CASCADE
+)
+CREATE INDEX name_index ON "%1$sfeed" (name)
+CREATE INDEX priority_index ON "%1$sfeed" (priority)
+CREATE INDEX keep_history_index ON "%1$sfeed" (keep_history)
+
+CREATE TABLE IF NOT EXISTS "%1$sentry" (
+	id bigint NOT NULL PRIMARY KEY,
+	guid varchar(760) UNIQUE NOT NULL,
+	title varchar(255) NOT NULL,
+	author varchar(255),
+	content_bin text,
+	link varchar(1023) NOT NULL,
+	date INT,
+	lastSeen INT DEFAULT 0,
+	hash BYTEA,
+	is_read boolean NOT NULL DEFAULT false,
+	is_favorite boolean NOT NULL DEFAULT false,
+	id_feed SMALLINT,
+	tags varchar(1023),
+	FOREIGN KEY (id_feed) REFERENCES "%1$sfeed" (id) ON DELETE CASCADE ON UPDATE CASCADE
+)
+CREATE INDEX is_favorite_index ON "%1$sentry" (is_favorite)
+CREATE INDEX is_read_index ON "%1$sentry" (is_read)
+CREATE INDEX entry_lastSeen_index ON "%1$sentry" (lastSeen)
+
+CREATE OR REPLACE FUNCTION update_unread_feed() RETURNS TRIGGER AS $$
+	BEGIN
+		UPDATE "%1$sfeed" 
+			SET cache_nbUnreads=(SELECT COUNT(*) FROM "%1$sentry" WHERE id_feed=OLD.id_feed AND NOT is_read)
+			WHERE id=OLD.id_feed;
+		return NULL;
+	end;
+	$$ LANGUAGE PLPGSQL;
+
+CREATE TRIGGER update_unread_feed
+	AFTER UPDATE OF is_read OR DELETE OR INSERT ON "%1$sentry"
+	FOR EACH ROW
+	EXECUTE PROCEDURE update_unread_feed();
+
+CREATE OR REPLACE FUNCTION reset_feed_seq() RETURNS TRIGGER AS $$
+	BEGIN
+		PERFORM 1 FROM "%1$sfeed";
+		IF NOT FOUND THEN
+			ALTER SEQUENCE IF EXISTS "%1$sfeed_id_seq" RESTART;
+		END IF;
+		return NULL;
+	end;
+	$$ LANGUAGE PLPGSQL;
+
+CREATE TRIGGER reset_feed_seq
+	AFTER DELETE ON "%1$sfeed"
+	FOR EACH STATEMENT
+	EXECUTE PROCEDURE reset_feed_seq();
+
+
+CREATE OR REPLACE RULE check_constraints_on_entry AS ON INSERT TO "%1$sentry" WHERE EXISTS(SELECT 1 FROM "%1$sentry" WHERE guid=NEW.guid) DO INSTEAD NOTHING;
+CREATE OR REPLACE RULE check_constraints_on_feed AS ON INSERT TO "%1$sfeed" WHERE EXISTS(SELECT 1 FROM "%1$sfeed" WHERE url=NEW.url) DO INSTEAD NOTHING;
+CREATE OR REPLACE RULE check_constraints_on_category AS ON INSERT TO "%1$scategory" WHERE EXISTS(SELECT 1 FROM "%1$scategory" WHERE name=NEW.name) DO INSTEAD NOTHING;
+CREATE OR REPLACE RULE check_constraints_on_category as on update to "%1$scategory" WHERE EXISTS(SELECT 1 FROM "%1$scategory" WHERE name=NEW.name) DO INSTEAD NOTHING;
+
+
+INSERT IGNORE INTO "%1$scategory" (id, name) VALUES(1, "%2$s");
+INSERT IGNORE INTO "%1$sfeed" (url, category, name, website, description, ttl) VALUES("http://freshrss.org/feeds/all.atom.xml", 1, "FreshRSS.org", "http://freshrss.org/", "FreshRSS, a free, self-hostable aggregator…", 86400);
+INSERT IGNORE INTO "%1$sfeed" (url, category, name, website, description, ttl) VALUES("https://github.com/FreshRSS/FreshRSS/releases.atom", 1, "FreshRSS @ GitHub", "https://github.com/FreshRSS/FreshRSS/", "FreshRSS releases @ GitHub", 86400);
+');
+
+define('SQL_DROP_TABLES', 'DROP TABLES "%1$sentry", "%1$sfeed", "%1$scategory"');