diff --git a/hamming.c b/hamming.c
index 4d5aab6..4cc476c 100644
--- a/hamming.c
+++ b/hamming.c
@@ -58,6 +58,35 @@ Datum hash_is_within_distance8(PG_FUNCTION_ARGS) {
     PG_RETURN_BOOL(true);
 }
 
+PG_FUNCTION_INFO_V1(hash_is_within_distance32);
+
+Datum hash_is_within_distance32(PG_FUNCTION_ARGS) {
+    char *h1 = VARDATA(PG_GETARG_BYTEA_P(0));
+    char *h2 = VARDATA(PG_GETARG_BYTEA_P(1));
+    int32 max_distance = PG_GETARG_INT32(2);
+
+    int distance = 0;
+
+    distance += __builtin_popcountll(*((uint64 *) h1) ^ *((uint64 *) h2));
+    if (distance > max_distance) {
+        PG_RETURN_BOOL(false);
+    }
+    distance += __builtin_popcountll(*((uint64 *) h1 + 1) ^ *((uint64 *) h2 + 1));
+    if (distance > max_distance) {
+        PG_RETURN_BOOL(false);
+    }
+    distance += __builtin_popcountll(*((uint64 *) h1 + 2) ^ *((uint64 *) h2 + 2));
+    if (distance > max_distance) {
+        PG_RETURN_BOOL(false);
+    }
+    distance += __builtin_popcountll(*((uint64 *) h1 + 3) ^ *((uint64 *) h2 + 3));
+    if (distance > max_distance) {
+        PG_RETURN_BOOL(false);
+    }
+
+    PG_RETURN_BOOL(distance <= max_distance);
+}
+
 PG_FUNCTION_INFO_V1(hash_distance8);
 
 Datum hash_distance8(PG_FUNCTION_ARGS) {
@@ -68,6 +97,21 @@ Datum hash_distance8(PG_FUNCTION_ARGS) {
     PG_RETURN_INT32(distance);
 }
 
+PG_FUNCTION_INFO_V1(hash_distance32);
+
+Datum hash_distance32(PG_FUNCTION_ARGS) {
+    char *h1 = VARDATA(PG_GETARG_BYTEA_P(0));
+    char *h2 = VARDATA(PG_GETARG_BYTEA_P(1));
+
+    int distance = 0;
+    distance += __builtin_popcountll(*((uint64 *) h1) ^ *((uint64 *) h2));
+    distance += __builtin_popcountll(*((uint64 *) h1 + 1) ^ *((uint64 *) h2 + 1));
+    distance += __builtin_popcountll(*((uint64 *) h1 + 2) ^ *((uint64 *) h2 + 2));
+    distance += __builtin_popcountll(*((uint64 *) h1 + 3) ^ *((uint64 *) h2 + 3));
+
+    PG_RETURN_INT32(distance);
+}
+
 PG_FUNCTION_INFO_V1(hash_distance18);
 
 /**
@@ -89,15 +133,9 @@ Datum hash_distance18(PG_FUNCTION_ARGS) {
 
     int distance = 0;
 
-    distance += __builtin_popcountll(
-            *((uint64 *) h1) ^ *((uint64 *) h2)
-    );
-    distance += __builtin_popcountll(
-            *((uint64 *) h1 + 1) ^ *((uint64 *) h2 + 1)
-    );
-    distance += __builtin_popcount(
-            *((uint16 *) h1 + 8) ^ *((uint16 *) h2 + 8)
-    );
+    distance += __builtin_popcountll(*((uint64 *) h1) ^ *((uint64 *) h2));
+    distance += __builtin_popcountll(*((uint64 *) h1 + 1) ^ *((uint64 *) h2 + 1));
+    distance += __builtin_popcount(*((uint16 *) h1 + 8) ^ *((uint16 *) h2 + 8));
 
     PG_RETURN_INT32(distance);
 }
diff --git a/install.sh b/install.sh
old mode 100644
new mode 100755
index 4e2ceaf..e5561c7
--- a/install.sh
+++ b/install.sh
@@ -1,8 +1,10 @@
 #!/usr/bin/env bash
 
-USER=dbuser
-DATABASE=dbname
-LIB_PATH='/path/to/libhamming.so'
+mv libhamming.so /usr/lib/
+
+USER=postgres
+DATABASE=imhashdb
+LIB_PATH="'/usr/lib/libhamming.so'"
 
 psql -U $USER $DATABASE <<EOF
 CREATE OR REPLACE FUNCTION hash_is_within_distance18(bytea, bytea, integer) RETURNS boolean
@@ -11,6 +13,9 @@ CREATE OR REPLACE FUNCTION hash_is_within_distance18(bytea, bytea, integer) RETU
 CREATE OR REPLACE FUNCTION hash_is_within_distance8(bytea, bytea, integer) RETURNS boolean
      AS $LIB_PATH, 'hash_is_within_distance8'
      LANGUAGE C STRICT;
+CREATE OR REPLACE FUNCTION hash_is_within_distance32(bytea, bytea, integer) RETURNS boolean
+     AS $LIB_PATH, 'hash_is_within_distance32'
+     LANGUAGE C STRICT;
 
 CREATE OR REPLACE FUNCTION hash_distance18(bytea, bytea) RETURNS integer
      AS $LIB_PATH, 'hash_distance18'
@@ -18,6 +23,9 @@ CREATE OR REPLACE FUNCTION hash_distance18(bytea, bytea) RETURNS integer
 CREATE OR REPLACE FUNCTION hash_distance8(bytea, bytea) RETURNS integer
      AS $LIB_PATH, 'hash_distance8'
      LANGUAGE C STRICT;
+CREATE OR REPLACE FUNCTION hash_distance32(bytea, bytea) RETURNS integer
+     AS $LIB_PATH, 'hash_distance32'
+     LANGUAGE C STRICT;
 
 CREATE OR REPLACE FUNCTION hash_is_within_distance18_any(bytea, bytea, integer) RETURNS bool
      AS $LIB_PATH, 'hash_is_within_distance18_any'