****************** Installation of Parser Operator (Linux install)**********************

tested on postgres 8.4.4 (32 Bit)

REQUIREMENTS:
	- postgreSQL 8.4.4 installed
	- postgreSQL programs (initdb, psql etc.) in PATH (check with env)
	- postgres_src_path: path to source code that includes config, contrib, doc, src etcetera
	- Lexem Importer installed, hence DB qvestorDB also created in ~


WITH INSTALL SCRIPT:
 0. call install_src.sh:
 	mkdir ~/qPsi
 	unzip parseOp_src.zip -d ~/qPsi
 	cd ~/qPsi
 	chmod a+x install_src.sh  
 	./install_src.sh postgres_src_path 
 		
 1. start postgres server:
	pg_ctl -D ~/qvestorDB start
	
 2. execute example query:
	psql -d qvestor -h localhost -f ~/qPsi/aggParse_example.sql
	
 3. stop postgreSQL server:
	pg_ctl -D ~/qvestorDB stop
	
MANUAL INSTALL WITHOUT INSTALL SCRIPT:
 0. extract zip file into a folder:
	mkdir postgres_src_path/contrib/aggparser
	unzip parseOp_src.zip -d postgres_src_path/contrib/aggparser
	
 1. change Makefile in postgres_src_path/contrib:
 	sed 's/WANTED_DIRS = \\/WANTED_DIRS = \\\n\t\t aggparser\\/' postgres_src_path/contrib/Makefile > postgres_src_path/contrib/Makefile_new
	rm postgres_src_path/contrib/Makefile
	cp postgres_src_path/contrib/Makefile_new postgres_src_path/contrib/Makefile
 	
 2. call make:
 	cd postgres_src_path/contrib/aggparser
 	make
 
 4. copy shared object to database folder:
 	cp aggparser.so ~/qvestorDB
 	
 5. start postgreSQL server:
 	pg_ctl -D ~/qvestorDB start
 	
 6. register function:
 	psql -d qvestor -h localhost -f postgres_src_path/contrib/parseOp.sql
 	
 7. execute example query:
	psql -d qvestor -h localhost -f postgres_src_path/contrib/aggParse_example.sql
	
 8. stop postgreSQL server:
	pg_ctl -D ~/qvestorDB stop