thisquery=select \
	table1.column1, \
	table1.column2, \
	table1.column3 alternate_title, \
	table1.column4 \
	from \
	table1 \
	where \


##</code><code>##

perl -pi -e 's/select(.*?)table1\.column3(.*?)from/select\1DUMMY_ID\2from/sg' select.sql