diff --git a/test/Makefile b/test/Makefile
index ac2f796..700620d 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -4,9 +4,28 @@ OUT   = $(TESTS:.load=.out)
 
 REMOTE = archive.load bossa-all.load bossa.load census-places.load dbf-zip.load
 LOCAL  = $(filter-out $(REMOTE:.load=.out),$(OUT))
+REGRESS= allcols.load 		    \
+         csv-before-after.load 	    \
+         csv-districts.load 	    \
+         csv-error.load 	    \
+         csv-keep-extra-blanks.load \
+         csv-trim-extra-blanks.load \
+         csv.load 		    \
+         errors.load 		    \
+         fixed.load 		    \
+         overflow.load 		    \
+         partial.load 		    \
+         serial.load 		    \
+         udc.load 		    \
+         xzero.load
 
 PGLOADER ?= ../build/bin/pgloader
 
+regress: clean-out $(addprefix regress/out/, $(REGRESS:.load=.out)) ;
+
+clean-out:
+	rm -f regress/out/*
+
 local: prepare $(LOCAL)
 
 remote: prepare $(REMOTE:.load=.out)
@@ -58,3 +77,7 @@ csv-districts-stdin.out: csv-districts-stdin.load
 %.out: %.load
 	$(PGLOADER) $<
 	@echo
+
+# Regression tests
+regress/out/%.out: %.load
+	./regress.sh $(PGLOADER) $<
diff --git a/test/overflow.load b/test/overflow.load
new file mode 100644
index 0000000..c07297c
--- /dev/null
+++ b/test/overflow.load
@@ -0,0 +1,14 @@
+LOAD CSV
+     FROM INLINE with encoding 'ascii'
+     INTO postgresql:///pgloader?overflow
+
+     WITH truncate,
+          fields terminated by ',',
+          fields not enclosed
+
+   BEFORE LOAD DO
+    $$ drop table if exists overflow; $$,
+    $$ CREATE TABLE overflow (id int, f1 text not null) $$;
+
+18446744073709551596,a
+12,
diff --git a/test/regress.sh b/test/regress.sh
new file mode 100755
index 0000000..78df647
--- /dev/null
+++ b/test/regress.sh
@@ -0,0 +1,19 @@
+#! /bin/bash
+
+# regress test driver
+#  - run pgloader on the given .load command file
+#  - parse the PostgreSQL connection string and target table
+#  - output a CSV for the target table
+#  - diff the CSV and error if diffs found
+
+pgloader=$1
+command=$2
+targetdb=`awk -F '[ ?]+' '/^ *INTO|into/ {print $3}' < $command`
+table=`awk -F '[ ?]+' '/^ *INTO|into/ {print $4}' < $command`
+
+expected=regress/expected/`basename $2 .load`.out
+out=regress/out/`basename $2 .load`.out
+
+$pgloader $command
+psql -c "copy $table to stdout" -d "$targetdb" > $out
+diff -c $expected $out
diff --git a/test/regress/expected/allcols.out b/test/regress/expected/allcols.out
new file mode 100644
index 0000000..efb2514
--- /dev/null
+++ b/test/regress/expected/allcols.out
@@ -0,0 +1,8 @@
+1	2008-02-18	first entry
+2	2008-02-19	second one
+3	2008-02-20	another
+4	2008-02-21	still running
+5	2008-02-22	well, some more
+6	2008-02-23	antepenultima
+7	2008-02-24	next to last
+8	2008-02-25	hey, it's today!
diff --git a/test/regress/expected/csv-before-after.out b/test/regress/expected/csv-before-after.out
new file mode 100644
index 0000000..723c3c8
--- /dev/null
+++ b/test/regress/expected/csv-before-after.out
@@ -0,0 +1,460 @@
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+223.239.199.0-223.239.255.254	20067
+223.239.255.255	103
+223.240.0.0/13	104129
+223.248.0.0/14	14431
+223.252.0.0/17	11716
+223.252.128.0/19	24328
+223.252.160.0/19	49
+223.252.192.0/19	47667
+223.252.224.0/19	14431
+223.253.0.0/16	22883
+223.254.0.0/16	103995
+223.255.0.0/17	24328
+223.255.128.0/24	35428
+223.255.129.0/24	25389
+223.255.130.0/24	35428
+223.255.131.0/24	14416
+223.255.132.0-223.255.136.255	35428
+223.255.137.0/24	14416
+223.255.138.0-223.255.140.255	35428
+223.255.141.0/24	104037
+223.255.142.0/23	35428
+223.255.144.0/24	14416
+223.255.145.0/24	35428
+223.255.146.0/25	21240
+223.255.146.128/25	14416
+223.255.147.0/24	35428
+223.255.148.0/24	21240
+223.255.149.0-223.255.150.255	35428
+223.255.151.0-223.255.152.255	14416
+223.255.153.0-223.255.157.255	35428
+223.255.158.0/23	14416
+223.255.160.0/24	35428
+223.255.161.0/24	14416
+223.255.162.0-223.255.167.255	35428
+223.255.168.0/23	21240
+223.255.170.0/24	35428
+223.255.171.0/24	14416
+223.255.172.0-223.255.187.255	35428
+223.255.188.0/24	14416
+223.255.189.0/24	35428
+223.255.190.0/25	14416
+223.255.190.128/25	21240
+223.255.191.0/24	35428
+223.255.192.0/19	22883
+223.255.224.0/27	32979
+223.255.224.32-223.255.225.255	206376
+223.255.226.0/24	104200
+223.255.227.0-223.255.229.31	206376
+223.255.229.32/27	47976
+223.255.229.64/28	206376
+223.255.229.80-223.255.229.255	47976
+223.255.230.0/24	206376
+223.255.231.0/27	105611
+223.255.231.32/27	337502
+223.255.231.64/26	206376
+223.255.231.128/27	36834
+223.255.231.160-223.255.231.255	206376
+223.255.232.0/22	17
+223.255.236.0/22	49
+223.255.240.0/22	94
+223.255.244.0/23	108612
+223.255.246.0/23	103
+223.255.248.0/22	17
+223.255.252.0/23	49
+223.255.254.0/24	191
+223.255.255.0/24	17
diff --git a/test/regress/expected/csv-districts.out b/test/regress/expected/csv-districts.out
new file mode 100644
index 0000000..e69de29
diff --git a/test/regress/expected/csv-error.out b/test/regress/expected/csv-error.out
new file mode 100644
index 0000000..18b7bc1
--- /dev/null
+++ b/test/regress/expected/csv-error.out
@@ -0,0 +1,3 @@
+BORDET              	Jordane             
+BORDET              	Audrey              
+LASTNAME            	"opening quote      
diff --git a/test/regress/expected/csv-keep-extra-blanks.out b/test/regress/expected/csv-keep-extra-blanks.out
new file mode 100644
index 0000000..dc99a80
--- /dev/null
+++ b/test/regress/expected/csv-keep-extra-blanks.out
@@ -0,0 +1,6 @@
+1	quoted empty string		should be empty string
+2	no value between separators	\N	should be null
+3	quoted blanks	    	should be blanks
+4	unquoted blanks	    	should be null
+5	unquoted string	no quote	should be 'no quote'
+6	quoted separator	a,b,c	should be 'a,b,c'
diff --git a/test/regress/expected/csv-trim-extra-blanks.out b/test/regress/expected/csv-trim-extra-blanks.out
new file mode 100644
index 0000000..34318ad
--- /dev/null
+++ b/test/regress/expected/csv-trim-extra-blanks.out
@@ -0,0 +1,7 @@
+1	quoted empty string		should be empty string
+2	no value between separators	\N	should be null
+3	quoted blanks	    	should be blanks
+4	unquoted blanks	\N	should be null
+5	unquoted string	no quote	should be 'no quote'
+6	quoted separator	a,b,c	should be 'a,b,c'
+7	trim extra blanks	test string	should be 'test string'
diff --git a/test/regress/expected/csv.out b/test/regress/expected/csv.out
new file mode 100644
index 0000000..aed6ce4
--- /dev/null
+++ b/test/regress/expected/csv.out
@@ -0,0 +1,6 @@
+33996344	33996351	GB	United Kingdom
+50331648	68257567	US	United States
+68257568	68257599	CA	Canada
+68257600	68259583	US	United States
+68259584	68259599	CA	Canada
+68259600	68296775	US	United States
diff --git a/test/regress/expected/errors.out b/test/regress/expected/errors.out
new file mode 100644
index 0000000..e69de29
diff --git a/test/regress/expected/fixed.out b/test/regress/expected/fixed.out
new file mode 100644
index 0000000..5cf7e12
--- /dev/null
+++ b/test/regress/expected/fixed.out
@@ -0,0 +1,3 @@
+123456789	2008-05-20	11:43:12.5	firstline        
+123456	2008-05-21	15:18:23	left blank-padded
+1234567890	2008-05-22	08:23:15.6	another line     
diff --git a/test/regress/expected/overflow.out b/test/regress/expected/overflow.out
new file mode 100644
index 0000000..e69de29
diff --git a/test/regress/expected/partial.out b/test/regress/expected/partial.out
new file mode 100644
index 0000000..e59ee6e
--- /dev/null
+++ b/test/regress/expected/partial.out
@@ -0,0 +1,7 @@
+1	foo	bar	\N	hop
+2	foo	bar	\N	hop
+3	foo	bar	\N	hop
+4	foo	bar	\N	hop
+5	foo	bar	\N	hop
+6	foo	bar	\N	hop
+7	foo	bar	\N	hop
diff --git a/test/regress/expected/serial.out b/test/regress/expected/serial.out
new file mode 100644
index 0000000..01a8803
--- /dev/null
+++ b/test/regress/expected/serial.out
@@ -0,0 +1,7 @@
+1	2006-11-11	some first row text
+2	2006-11-11	some second row text
+3	2006-10-12	some third row text
+4	2006-10-04	\\
+5	2006-05-12	some fifth row text
+6	2006-07-10	some sixth row text
+7	\N	some null date to play with
diff --git a/test/regress/expected/udc.out b/test/regress/expected/udc.out
new file mode 100644
index 0000000..bcabe35
--- /dev/null
+++ b/test/regress/expected/udc.out
@@ -0,0 +1,5 @@
+5	constant value	1
+10	constant value	2
+4	constant value	3
+18	constant value	4
+2	constant value	5
diff --git a/test/regress/expected/xzero.out b/test/regress/expected/xzero.out
new file mode 100644
index 0000000..65c4699
--- /dev/null
+++ b/test/regress/expected/xzero.out
@@ -0,0 +1,7 @@
+1	2006-11-11	some first row text
+2	2006-11-13	some second row text
+3	2006-10-12	some third row text
+4	2006-10-04	\\
+5	2006-05-12	some fifth row text
+6	2006-07-10	some sixth row text
+7	\N	some null date to play with
diff --git a/test/regress/out/.gitignore b/test/regress/out/.gitignore
new file mode 100644
index 0000000..86d0cb2
--- /dev/null
+++ b/test/regress/out/.gitignore
@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore
\ No newline at end of file