diff --git a/Makefile b/Makefile
index 6e298538..3134ab2e 100644
--- a/Makefile
+++ b/Makefile
@@ -82,7 +82,7 @@ indent:
 TESTS = $(wildcard tests/*/out/*.json)
 SPACE = $(NULL) $(NULL)
 
-test: tippecanoe tippecanoe-decode $(addsuffix .check,$(TESTS)) raw-tiles-test parallel-test pbf-test join-test enumerate-test decode-test join-filter-test unit json-tool-test allow-existing-test csv-test layer-json-test
+test: tippecanoe tippecanoe-decode $(addsuffix .check,$(TESTS)) raw-tiles-test parallel-test pbf-test join-test enumerate-test decode-test join-filter-test unit json-tool-test allow-existing-test csv-test layer-json-test pmtiles-test
 	./unit
 
 suffixes = json json.gz
@@ -156,6 +156,26 @@ raw-tiles-test:
 	cmp tests/raw-tiles/nothing.json.check tests/raw-tiles/nothing.json
 	rm -r tests/raw-tiles/nothing tests/raw-tiles/nothing.json.check
 
+pmtiles-test:
+	./tippecanoe -q -f -o tests/pmtiles/hackspots.pmtiles -r1 -pC tests/raw-tiles/hackspots.geojson
+	./tippecanoe-decode -x generator tests/pmtiles/hackspots.pmtiles > tests/pmtiles/hackspots.json.check
+	cmp tests/pmtiles/hackspots.json.check tests/pmtiles/hackspots.json
+	# Test generating pmtiles first and then converting to mbtiles with tile-join.
+	./tile-join -q -f -pC -o tests/pmtiles/joined.mbtiles tests/pmtiles/hackspots.pmtiles
+	./tippecanoe-decode -x generator tests/pmtiles/joined.mbtiles > tests/pmtiles/joined.json.check
+	cmp tests/pmtiles/joined.json.check tests/pmtiles/joined.json
+	rm -r tests/pmtiles/hackspots.json.check tests/pmtiles/hackspots.pmtiles
+
+	# Test generating mbtiles first and then converting to pmtiles with tile-join. (Changes bounds)
+	./tippecanoe -q -f -o tests/pmtiles/hackspots.mbtiles -r1 -pC tests/raw-tiles/hackspots.geojson
+	./tile-join -q -f -pC -o tests/pmtiles/joined.pmtiles tests/pmtiles/hackspots.mbtiles
+
+	# decode changes order (ZXY vs TMS order)
+	./tippecanoe-decode -x generator tests/pmtiles/joined.pmtiles > tests/pmtiles/joined_reordered.json.check
+	cmp tests/pmtiles/joined_reordered.json.check tests/pmtiles/joined_reordered.json
+	rm -r tests/pmtiles/joined_reordered.json.check tests/pmtiles/hackspots.mbtiles tests/pmtiles/joined.pmtiles
+
+
 decode-test:
 	mkdir -p tests/muni/decode
 	./tippecanoe -q -z11 -Z11 -f -o tests/muni/decode/multi.mbtiles tests/muni/*.json
@@ -173,6 +193,23 @@ decode-test:
 	cmp tests/muni/decode/multi.mbtiles.stats.json.check tests/muni/decode/multi.mbtiles.stats.json
 	rm -f tests/muni/decode/multi.mbtiles.json.check tests/muni/decode/multi.mbtiles tests/muni/decode/multi.mbtiles.pipeline.json.check tests/muni/decode/multi.mbtiles.stats.json.check tests/muni/decode/multi.mbtiles.onetile.json.check
 
+decode-pmtiles-test:
+	mkdir -p tests/muni/decode
+	./tippecanoe -q -z11 -Z11 -f -o tests/muni/decode/multi.pmtiles tests/muni/*.json
+	./tippecanoe-decode -x generator -l subway tests/muni/decode/multi.pmtiles > tests/muni/decode/multi.pmtiles.json.check
+	./tippecanoe-decode -x generator -l subway --integer tests/muni/decode/multi.pmtiles > tests/muni/decode/multi.pmtiles.integer.json.check
+	./tippecanoe-decode -x generator -l subway --fraction tests/muni/decode/multi.pmtiles > tests/muni/decode/multi.pmtiles.fraction.json.check
+	./tippecanoe-decode -x generator -c tests/muni/decode/multi.pmtiles > tests/muni/decode/multi.pmtiles.pipeline.json.check
+	./tippecanoe-decode -x generator tests/muni/decode/multi.pmtiles 11 327 791 > tests/muni/decode/multi.pmtiles.onetile.json.check
+	./tippecanoe-decode -x generator --stats tests/muni/decode/multi.pmtiles > tests/muni/decode/multi.pmtiles.stats.json.check
+	cmp tests/muni/decode/multi.pmtiles.json.check tests/muni/decode/multi.mbtiles.json
+	cmp tests/muni/decode/multi.pmtiles.integer.json.check tests/muni/decode/multi.mbtiles.integer.json
+	cmp tests/muni/decode/multi.pmtiles.fraction.json.check tests/muni/decode/multi.mbtiles.fraction.json
+	cmp tests/muni/decode/multi.pmtiles.pipeline.json.check tests/muni/decode/multi.mbtiles.pipeline.json
+	cmp tests/muni/decode/multi.pmtiles.onetile.json.check tests/muni/decode/multi.mbtiles.onetile.json
+	cmp tests/muni/decode/multi.pmtiles.stats.json.check tests/muni/decode/multi.mbtiles.stats.json
+	rm -f tests/muni/decode/multi.pmtiles.json.check tests/muni/decode/multi.pmtiles tests/muni/decode/multi.pmtiles.pipeline.json.check tests/muni/decode/multi.pmtiles.stats.json.check tests/muni/decode/multi.pmtiles.onetile.json.check
+
 pbf-test:
 	./tippecanoe-decode -x generator tests/pbf/11-328-791.vector.pbf 11 328 791 > tests/pbf/11-328-791.vector.pbf.out
 	cmp tests/pbf/11-328-791.json tests/pbf/11-328-791.vector.pbf.out
@@ -318,7 +355,16 @@ allow-existing-test:
 	./tippecanoe -q -Z10 -z11 -F -e tests/allow-existing/both.dir tests/coalesce-tract/tl_2010_06001_tract10.json
 	./tippecanoe-decode -x generator -x generator_options tests/allow-existing/both.dir | sed 's/both\.dir/both.mbtiles/g' > tests/allow-existing/both.dir.json.check
 	cmp tests/allow-existing/both.dir.json.check tests/allow-existing/both.mbtiles.json
-	rm -r tests/allow-existing/both.dir.json.check tests/allow-existing/both.dir tests/allow-existing/both.mbtiles.json.check tests/allow-existing/both.mbtiles
+	# Make a tileset
+	./tippecanoe -q -Z0 -z0 -f -e tests/allow-existing/both.pmtiles tests/coalesce-tract/tl_2010_06001_tract10.json
+	# Writing to existing should fail
+	if ./tippecanoe -q -Z1 -z1 -e tests/allow-existing/both.pmtiles tests/coalesce-tract/tl_2010_06001_tract10.json; then exit 1; else exit 0; fi
+	# Replace existing
+	./tippecanoe -q -Z8 -z9 -f -e tests/allow-existing/both.pmtiles tests/coalesce-tract/tl_2010_06001_tract10.json
+	./tippecanoe -q -Z10 -z11 -F -e tests/allow-existing/both.pmtiles tests/coalesce-tract/tl_2010_06001_tract10.json
+	./tippecanoe-decode -x generator -x generator_options tests/allow-existing/both.pmtiles | sed 's/both\.pmtiles/both.mbtiles/g' > tests/allow-existing/both.pmtiles.json.check
+	cmp tests/allow-existing/both.pmtiles.json.check tests/allow-existing/both.mbtiles.json
+	rm -r tests/allow-existing/both.pmtiles.json.check tests/allow-existing/both.pmtiles tests/allow-existing/both.dir.json.check tests/allow-existing/both.dir tests/allow-existing/both.mbtiles.json.check tests/allow-existing/both.mbtiles
 
 csv-test:
 	# Reading from named CSV
diff --git a/tests/pmtiles/hackspots.json b/tests/pmtiles/hackspots.json
new file mode 100644
index 00000000..cfac4dbe
--- /dev/null
+++ b/tests/pmtiles/hackspots.json
@@ -0,0 +1,217 @@
+{ "type": "FeatureCollection", "properties": {
+"bounds": "-122.682427,45.512331,-122.654961,45.569975",
+"center": "-122.662354,45.514045,14",
+"description": "tests/pmtiles/hackspots.pmtiles",
+"format": "pbf",
+"generator_options": "./tippecanoe -q -f -o tests/pmtiles/hackspots.pmtiles -r1 -pC tests/raw-tiles/hackspots.geojson",
+"json": "{ \"vector_layers\": [{\"id\":\"hackspots\",\"description\":\"\",\"minzoom\":0,\"maxzoom\":14,\"fields\":{\"Address\":\"String\",\"Name\":\"String\",\"Notes\":\"String\"}}], \"tilestats\": {\"layerCount\":1,\"layers\":[{\"layer\":\"hackspots\",\"count\":4,\"geometry\":\"Point\",\"attributeCount\":3,\"attributes\":[{\"attribute\":\"Address\",\"count\":4,\"type\":\"string\",\"values\":[\"1507 N Rosa Parks Way  Portland, OR 97217\",\"201 SE 12th Ave, Portland, OR 97214\",\"4637 N Albina Ave  Portland, OR 97217\",\"915 SE Hawthorne Blvd. Portland, OR 97214\"]},{\"attribute\":\"Name\",\"count\":4,\"type\":\"string\",\"values\":[\"Albina Press\",\"Arbor Lodge\",\"Lucky Labrador Brew Pub\",\"Three Friends Coffeehouse\"]},{\"attribute\":\"Notes\",\"count\":3,\"type\":\"string\",\"values\":[\"\",\"Dog friendly\",\"usually busy, outlets on side wall only\"]}]}]} }",
+"maxzoom": "14",
+"minzoom": "0",
+"name": "tests/pmtiles/hackspots.pmtiles",
+"type": "overlay",
+"version": "2"
+}, "features": [
+{ "type": "FeatureCollection", "properties": { "zoom": 0, "x": 0, "y": 0, "compressed": false }, "features": [
+{ "type": "FeatureCollection", "properties": { "layer": "hackspots", "version": 2, "extent": 4096 }, "features": [
+{ "type": "Feature", "properties": { "Name": "Arbor Lodge", "Address": "1507 N Rosa Parks Way  Portland, OR 97217", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.695312, 45.583290 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Albina Press", "Address": "4637 N Albina Ave  Portland, OR 97217", "Notes": "usually busy, outlets on side wall only" }, "geometry": { "type": "Point", "coordinates": [ -122.695312, 45.583290 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Three Friends Coffeehouse", "Address": "201 SE 12th Ave, Portland, OR 97214", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.695312, 45.521744 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Lucky Labrador Brew Pub", "Address": "915 SE Hawthorne Blvd. Portland, OR 97214", "Notes": "Dog friendly" }, "geometry": { "type": "Point", "coordinates": [ -122.695312, 45.521744 ] } }
+] }
+] }
+,
+{ "type": "FeatureCollection", "properties": { "zoom": 1, "x": 0, "y": 0, "compressed": false }, "features": [
+{ "type": "FeatureCollection", "properties": { "layer": "hackspots", "version": 2, "extent": 4096 }, "features": [
+{ "type": "Feature", "properties": { "Name": "Arbor Lodge", "Address": "1507 N Rosa Parks Way  Portland, OR 97217", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.695312, 45.583290 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Albina Press", "Address": "4637 N Albina Ave  Portland, OR 97217", "Notes": "usually busy, outlets on side wall only" }, "geometry": { "type": "Point", "coordinates": [ -122.695312, 45.583290 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Three Friends Coffeehouse", "Address": "201 SE 12th Ave, Portland, OR 97214", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.695312, 45.521744 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Lucky Labrador Brew Pub", "Address": "915 SE Hawthorne Blvd. Portland, OR 97214", "Notes": "Dog friendly" }, "geometry": { "type": "Point", "coordinates": [ -122.695312, 45.521744 ] } }
+] }
+] }
+,
+{ "type": "FeatureCollection", "properties": { "zoom": 2, "x": 0, "y": 1, "compressed": false }, "features": [
+{ "type": "FeatureCollection", "properties": { "layer": "hackspots", "version": 2, "extent": 4096 }, "features": [
+{ "type": "Feature", "properties": { "Name": "Arbor Lodge", "Address": "1507 N Rosa Parks Way  Portland, OR 97217", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.695312, 45.583290 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Albina Press", "Address": "4637 N Albina Ave  Portland, OR 97217", "Notes": "usually busy, outlets on side wall only" }, "geometry": { "type": "Point", "coordinates": [ -122.695312, 45.567910 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Three Friends Coffeehouse", "Address": "201 SE 12th Ave, Portland, OR 97214", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.673340, 45.521744 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Lucky Labrador Brew Pub", "Address": "915 SE Hawthorne Blvd. Portland, OR 97214", "Notes": "Dog friendly" }, "geometry": { "type": "Point", "coordinates": [ -122.673340, 45.521744 ] } }
+] }
+] }
+,
+{ "type": "FeatureCollection", "properties": { "zoom": 3, "x": 1, "y": 2, "compressed": false }, "features": [
+{ "type": "FeatureCollection", "properties": { "layer": "hackspots", "version": 2, "extent": 4096 }, "features": [
+{ "type": "Feature", "properties": { "Name": "Arbor Lodge", "Address": "1507 N Rosa Parks Way  Portland, OR 97217", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.684326, 45.575600 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Albina Press", "Address": "4637 N Albina Ave  Portland, OR 97217", "Notes": "usually busy, outlets on side wall only" }, "geometry": { "type": "Point", "coordinates": [ -122.684326, 45.560218 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Three Friends Coffeehouse", "Address": "201 SE 12th Ave, Portland, OR 97214", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.662354, 45.521744 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Lucky Labrador Brew Pub", "Address": "915 SE Hawthorne Blvd. Portland, OR 97214", "Notes": "Dog friendly" }, "geometry": { "type": "Point", "coordinates": [ -122.662354, 45.514046 ] } }
+] }
+] }
+,
+{ "type": "FeatureCollection", "properties": { "zoom": 4, "x": 2, "y": 5, "compressed": false }, "features": [
+{ "type": "FeatureCollection", "properties": { "layer": "hackspots", "version": 2, "extent": 4096 }, "features": [
+{ "type": "Feature", "properties": { "Name": "Arbor Lodge", "Address": "1507 N Rosa Parks Way  Portland, OR 97217", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.684326, 45.571755 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Albina Press", "Address": "4637 N Albina Ave  Portland, OR 97217", "Notes": "usually busy, outlets on side wall only" }, "geometry": { "type": "Point", "coordinates": [ -122.678833, 45.560218 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Three Friends Coffeehouse", "Address": "201 SE 12th Ave, Portland, OR 97214", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.656860, 45.521744 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Lucky Labrador Brew Pub", "Address": "915 SE Hawthorne Blvd. Portland, OR 97214", "Notes": "Dog friendly" }, "geometry": { "type": "Point", "coordinates": [ -122.656860, 45.514046 ] } }
+] }
+] }
+,
+{ "type": "FeatureCollection", "properties": { "zoom": 5, "x": 5, "y": 11, "compressed": false }, "features": [
+{ "type": "FeatureCollection", "properties": { "layer": "hackspots", "version": 2, "extent": 4096 }, "features": [
+{ "type": "Feature", "properties": { "Name": "Arbor Lodge", "Address": "1507 N Rosa Parks Way  Portland, OR 97217", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.684326, 45.571755 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Albina Press", "Address": "4637 N Albina Ave  Portland, OR 97217", "Notes": "usually busy, outlets on side wall only" }, "geometry": { "type": "Point", "coordinates": [ -122.676086, 45.558295 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Three Friends Coffeehouse", "Address": "201 SE 12th Ave, Portland, OR 97214", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.656860, 45.521744 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Lucky Labrador Brew Pub", "Address": "915 SE Hawthorne Blvd. Portland, OR 97214", "Notes": "Dog friendly" }, "geometry": { "type": "Point", "coordinates": [ -122.656860, 45.514046 ] } }
+] }
+] }
+,
+{ "type": "FeatureCollection", "properties": { "zoom": 6, "x": 10, "y": 22, "compressed": false }, "features": [
+{ "type": "FeatureCollection", "properties": { "layer": "hackspots", "version": 2, "extent": 4096 }, "features": [
+{ "type": "Feature", "properties": { "Name": "Arbor Lodge", "Address": "1507 N Rosa Parks Way  Portland, OR 97217", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.682953, 45.570794 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Albina Press", "Address": "4637 N Albina Ave  Portland, OR 97217", "Notes": "usually busy, outlets on side wall only" }, "geometry": { "type": "Point", "coordinates": [ -122.676086, 45.557333 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Three Friends Coffeehouse", "Address": "201 SE 12th Ave, Portland, OR 97214", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.655487, 45.521744 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Lucky Labrador Brew Pub", "Address": "915 SE Hawthorne Blvd. Portland, OR 97214", "Notes": "Dog friendly" }, "geometry": { "type": "Point", "coordinates": [ -122.656860, 45.513084 ] } }
+] }
+] }
+,
+{ "type": "FeatureCollection", "properties": { "zoom": 7, "x": 20, "y": 45, "compressed": false }, "features": [
+{ "type": "FeatureCollection", "properties": { "layer": "hackspots", "version": 2, "extent": 4096 }, "features": [
+{ "type": "Feature", "properties": { "Name": "Arbor Lodge", "Address": "1507 N Rosa Parks Way  Portland, OR 97217", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.682953, 45.570313 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Albina Press", "Address": "4637 N Albina Ave  Portland, OR 97217", "Notes": "usually busy, outlets on side wall only" }, "geometry": { "type": "Point", "coordinates": [ -122.675400, 45.556853 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Three Friends Coffeehouse", "Address": "201 SE 12th Ave, Portland, OR 97214", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.655487, 45.521263 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Lucky Labrador Brew Pub", "Address": "915 SE Hawthorne Blvd. Portland, OR 97214", "Notes": "Dog friendly" }, "geometry": { "type": "Point", "coordinates": [ -122.656860, 45.512602 ] } }
+] }
+] }
+,
+{ "type": "FeatureCollection", "properties": { "zoom": 8, "x": 40, "y": 91, "compressed": false }, "features": [
+{ "type": "FeatureCollection", "properties": { "layer": "hackspots", "version": 2, "extent": 4096 }, "features": [
+{ "type": "Feature", "properties": { "Name": "Arbor Lodge", "Address": "1507 N Rosa Parks Way  Portland, OR 97217", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.682610, 45.570073 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Albina Press", "Address": "4637 N Albina Ave  Portland, OR 97217", "Notes": "usually busy, outlets on side wall only" }, "geometry": { "type": "Point", "coordinates": [ -122.675400, 45.556853 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Three Friends Coffeehouse", "Address": "201 SE 12th Ave, Portland, OR 97214", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.655144, 45.521263 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Lucky Labrador Brew Pub", "Address": "915 SE Hawthorne Blvd. Portland, OR 97214", "Notes": "Dog friendly" }, "geometry": { "type": "Point", "coordinates": [ -122.656517, 45.512362 ] } }
+] }
+] }
+,
+{ "type": "FeatureCollection", "properties": { "zoom": 9, "x": 81, "y": 183, "compressed": false }, "features": [
+{ "type": "FeatureCollection", "properties": { "layer": "hackspots", "version": 2, "extent": 4096 }, "features": [
+{ "type": "Feature", "properties": { "Name": "Arbor Lodge", "Address": "1507 N Rosa Parks Way  Portland, OR 97217", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.682438, 45.570073 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Albina Press", "Address": "4637 N Albina Ave  Portland, OR 97217", "Notes": "usually busy, outlets on side wall only" }, "geometry": { "type": "Point", "coordinates": [ -122.675228, 45.556732 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Three Friends Coffeehouse", "Address": "201 SE 12th Ave, Portland, OR 97214", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.654972, 45.521263 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Lucky Labrador Brew Pub", "Address": "915 SE Hawthorne Blvd. Portland, OR 97214", "Notes": "Dog friendly" }, "geometry": { "type": "Point", "coordinates": [ -122.656345, 45.512362 ] } }
+] }
+] }
+,
+{ "type": "FeatureCollection", "properties": { "zoom": 10, "x": 163, "y": 366, "compressed": false }, "features": [
+{ "type": "FeatureCollection", "properties": { "layer": "hackspots", "version": 2, "extent": 4096 }, "features": [
+{ "type": "Feature", "properties": { "Name": "Arbor Lodge", "Address": "1507 N Rosa Parks Way  Portland, OR 97217", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.682438, 45.570013 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Albina Press", "Address": "4637 N Albina Ave  Portland, OR 97217", "Notes": "usually busy, outlets on side wall only" }, "geometry": { "type": "Point", "coordinates": [ -122.675228, 45.556732 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Three Friends Coffeehouse", "Address": "201 SE 12th Ave, Portland, OR 97214", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.654972, 45.521263 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Lucky Labrador Brew Pub", "Address": "915 SE Hawthorne Blvd. Portland, OR 97214", "Notes": "Dog friendly" }, "geometry": { "type": "Point", "coordinates": [ -122.656260, 45.512362 ] } }
+] }
+] }
+,
+{ "type": "FeatureCollection", "properties": { "zoom": 11, "x": 326, "y": 732, "compressed": false }, "features": [
+{ "type": "FeatureCollection", "properties": { "layer": "hackspots", "version": 2, "extent": 4096 }, "features": [
+{ "type": "Feature", "properties": { "Name": "Arbor Lodge", "Address": "1507 N Rosa Parks Way  Portland, OR 97217", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.682438, 45.569983 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Albina Press", "Address": "4637 N Albina Ave  Portland, OR 97217", "Notes": "usually busy, outlets on side wall only" }, "geometry": { "type": "Point", "coordinates": [ -122.675185, 45.556732 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Three Friends Coffeehouse", "Address": "201 SE 12th Ave, Portland, OR 97214", "Notes": "" }, "geometry": { "type": "Point", "coordinates": [ -122.654972, 45.521263 ] } }
+,
+{ "type": "Feature", "properties": { "Name": "Lucky Labrador Brew Pub", "Address": "915 SE Hawthorne Blvd. Portland, OR 97214", "Notes": "Dog friendly" }, "geometry": { "type": "Point", "coordinates": [ -122.656260, 45.512332 ] } }
+] }
+] }
+,
+{ "type": "FeatureCollection", "properties": { "zoom": 12, "x": 652, "y": 1464, "compressed": false }, "features": [
+{ "type": "FeatureCollection", "properties": { "layer": "hackspots", "version": 2, "extent": 4096 }, "features": [
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diff --git a/tests/pmtiles/hackspots.pmtiles b/tests/pmtiles/hackspots.pmtiles
new file mode 100644
index 00000000..13756da8
Binary files /dev/null and b/tests/pmtiles/hackspots.pmtiles differ
diff --git a/tests/pmtiles/joined.json b/tests/pmtiles/joined.json
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diff --git a/tests/pmtiles/joined2.json b/tests/pmtiles/joined2.json
new file mode 100644
index 00000000..7ba05ec9
--- /dev/null
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diff --git a/tests/pmtiles/joined_reordered.json b/tests/pmtiles/joined_reordered.json
new file mode 100644
index 00000000..53fcd1bb
--- /dev/null
+++ b/tests/pmtiles/joined_reordered.json
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