From b8b6f075b0edb77b2014bf84130a69903ad5519e Mon Sep 17 00:00:00 2001
From: Andreas Baumann <abaumann@yahoo.com>
Date: Thu, 12 Apr 2012 20:47:24 +0200
Subject: added some rudimentary install docu, renamed test.sql to create.sql
 and schema.sql

---
 schema.sql | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 schema.sql

(limited to 'schema.sql')

diff --git a/schema.sql b/schema.sql
new file mode 100644
index 0000000..d48c890
--- /dev/null
+++ b/schema.sql
@@ -0,0 +1,44 @@
+CREATE TABLE dir (
+	id SERIAL PRIMARY KEY,
+	parent_id INTEGER REFERENCES dir( id ),
+	name TEXT,
+	path TEXT,
+	isdir BOOL,
+	UNIQUE( name, parent_id ),
+	UNIQUE( path ),
+	mode INTEGER NOT NULL DEFAULT 0,
+	uid INTEGER NOT NULL DEFAULT 0,
+	gid INTEGER NOT NULL DEFAULT 0,
+	ctime TIMESTAMP WITH TIME ZONE,
+	mtime TIMESTAMP WITH TIME ZONE,
+	atime TIMESTAMP WITH TIME ZONE,
+	size INTEGER DEFAULT 0
+);
+
+CREATE TABLE data (
+	id INTEGER,
+	FOREIGN KEY( id ) REFERENCES dir( id ),
+	data BYTEA
+);
+
+-- create an index for fast data access
+CREATE INDEX data_id_idx ON data( id );
+
+-- create an index on the parent_id for
+-- directory listings
+CREATE INDEX dir_parent_id_idx ON dir( parent_id );
+
+-- make sure file entries always get a data
+-- section in the separate table
+CREATE OR REPLACE RULE "dir_insert" AS ON
+	INSERT TO dir WHERE NEW.isdir = false
+	DO ALSO INSERT INTO data( id )
+	VALUES ( currval( 'dir_id_seq' ) );
+
+-- garbage collect deleted file entries
+CREATE OR REPLACE RULE "dir_remove" AS ON
+	DELETE TO dir WHERE OLD.isdir = false
+	DO ALSO DELETE FROM data WHERE id=OLD.id;	
+	
+-- self-referencing anchor for root directory
+INSERT INTO dir values( 0, 0, '/', '/', true );
-- 
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