diff --git a/codegen/src/main.rs b/codegen/src/main.rs
index 293686cb..7ca96fe9 100644
--- a/codegen/src/main.rs
+++ b/codegen/src/main.rs
@@ -9,7 +9,7 @@ mod sqlstate;
 mod type_gen;
 
 fn main() {
-    let path = Path::new("..");
+    let path = Path::new("../postgres-shared/src");
     sqlstate::build(path);
     type_gen::build(path);
 }
diff --git a/codegen/src/sqlstate.rs b/codegen/src/sqlstate.rs
index 94f37ae0..03bffaf9 100644
--- a/codegen/src/sqlstate.rs
+++ b/codegen/src/sqlstate.rs
@@ -13,7 +13,7 @@ struct Code {
 }
 
 pub fn build(path: &Path) {
-    let mut file = BufWriter::new(File::create(path.join("postgres-shared/src/error/sqlstate.rs")).unwrap());
+    let mut file = BufWriter::new(File::create(path.join("error/sqlstate.rs")).unwrap());
 
     let codes = parse_codes();
 
diff --git a/codegen/src/type_gen.rs b/codegen/src/type_gen.rs
index 034b4e3a..49607538 100644
--- a/codegen/src/type_gen.rs
+++ b/codegen/src/type_gen.rs
@@ -20,7 +20,7 @@ struct Type {
 }
 
 pub fn build(path: &Path) {
-    let mut file = BufWriter::new(File::create(path.join("postgres/src/types/type_gen.rs")).unwrap());
+    let mut file = BufWriter::new(File::create(path.join("types/type_gen.rs")).unwrap());
 
     let ranges = parse_ranges();
     let types = parse_types(&ranges);
diff --git a/postgres-shared/Cargo.toml b/postgres-shared/Cargo.toml
index 8c433c73..a14d4ce5 100644
--- a/postgres-shared/Cargo.toml
+++ b/postgres-shared/Cargo.toml
@@ -3,8 +3,23 @@ name = "postgres-shared"
 version = "0.1.0"
 authors = ["Steven Fackler <sfackler@gmail.com>"]
 
+[features]
+with-bit-vec = ["bit-vec"]
+with-chrono = ["chrono"]
+with-eui48 = ["eui48"]
+with-serde_json = ["serde_json"]
+with-time = ["time"]
+with-uuid = ["uuid"]
+
 [dependencies]
 hex = "0.2"
 fallible-iterator = "0.1.3"
 phf = "=0.7.20"
 postgres-protocol = "0.2"
+
+bit-vec = { version = "0.4", optional = true }
+chrono = { version = "0.2.14", optional = true }
+eui48 = { version = "0.1", optional = true }
+serde_json = { version = ">= 0.6, < 0.9", optional = true }
+time = { version = "0.1.14", optional = true }
+uuid = { version = ">= 0.1, < 0.4", optional = true }
diff --git a/postgres-shared/src/lib.rs b/postgres-shared/src/lib.rs
index 9ce1f019..cdde9268 100644
--- a/postgres-shared/src/lib.rs
+++ b/postgres-shared/src/lib.rs
@@ -10,6 +10,7 @@ use std::ops::Range;
 
 pub mod error;
 pub mod params;
+pub mod types;
 
 pub struct RowData {
     buf: Vec<u8>,
diff --git a/postgres/src/types/bit_vec.rs b/postgres-shared/src/types/bit_vec.rs
similarity index 100%
rename from postgres/src/types/bit_vec.rs
rename to postgres-shared/src/types/bit_vec.rs
diff --git a/postgres/src/types/chrono.rs b/postgres-shared/src/types/chrono.rs
similarity index 100%
rename from postgres/src/types/chrono.rs
rename to postgres-shared/src/types/chrono.rs
diff --git a/postgres/src/types/eui48.rs b/postgres-shared/src/types/eui48.rs
similarity index 100%
rename from postgres/src/types/eui48.rs
rename to postgres-shared/src/types/eui48.rs
diff --git a/postgres/src/types/mod.rs b/postgres-shared/src/types/mod.rs
similarity index 98%
rename from postgres/src/types/mod.rs
rename to postgres-shared/src/types/mod.rs
index cb812cb7..edb57ee3 100644
--- a/postgres/src/types/mod.rs
+++ b/postgres-shared/src/types/mod.rs
@@ -1,5 +1,3 @@
-//! Traits dealing with Postgres data types
-
 use fallible_iterator::FallibleIterator;
 use postgres_protocol;
 use postgres_protocol::types::{self, ArrayDimension};
@@ -13,7 +11,6 @@ pub use postgres_protocol::Oid;
 
 pub use self::type_gen::Type;
 pub use self::special::{Date, Timestamp};
-use {SessionInfoNew, OtherNew, WrongTypeNew, FieldNew};
 
 /// Generates a simple implementation of `ToSql::accepts` which accepts the
 /// types passed to it.
@@ -88,8 +85,9 @@ pub struct SessionInfo<'a> {
     parameters: &'a HashMap<String, String>,
 }
 
-impl<'a> SessionInfoNew<'a> for SessionInfo<'a> {
-    fn new(parameters: &'a HashMap<String, String>) -> SessionInfo<'a> {
+impl<'a> SessionInfo<'a> {
+    #[doc(hidden)]
+    pub fn new(parameters: &'a HashMap<String, String>) -> SessionInfo<'a> {
         SessionInfo { parameters: parameters }
     }
 }
@@ -142,8 +140,9 @@ impl Field {
     }
 }
 
-impl FieldNew for Field {
-    fn new(name: String, type_: Type) -> Field {
+impl Field {
+    #[doc(hidden)]
+    pub fn new(name: String, type_: Type) -> Field {
         Field {
             name: name,
             type_: type_,
@@ -174,8 +173,9 @@ struct OtherInner {
     schema: String,
 }
 
-impl OtherNew for Other {
-    fn new(name: String, oid: Oid, kind: Kind, schema: String) -> Other {
+impl Other {
+    #[doc(hidden)]
+    pub fn new(name: String, oid: Oid, kind: Kind, schema: String) -> Other {
         Other(Arc::new(OtherInner {
             name: name,
             oid: oid,
@@ -243,8 +243,9 @@ impl Error for WrongType {
     }
 }
 
-impl WrongTypeNew for WrongType {
-    fn new(ty: Type) -> WrongType {
+impl WrongType {
+    #[doc(hidden)]
+    pub fn new(ty: Type) -> WrongType {
         WrongType(ty)
     }
 }
diff --git a/postgres/src/types/rustc_serialize.rs b/postgres-shared/src/types/rustc_serialize.rs
similarity index 100%
rename from postgres/src/types/rustc_serialize.rs
rename to postgres-shared/src/types/rustc_serialize.rs
diff --git a/postgres/src/types/serde_json.rs b/postgres-shared/src/types/serde_json.rs
similarity index 100%
rename from postgres/src/types/serde_json.rs
rename to postgres-shared/src/types/serde_json.rs
diff --git a/postgres/src/types/special.rs b/postgres-shared/src/types/special.rs
similarity index 100%
rename from postgres/src/types/special.rs
rename to postgres-shared/src/types/special.rs
diff --git a/postgres/src/types/time.rs b/postgres-shared/src/types/time.rs
similarity index 100%
rename from postgres/src/types/time.rs
rename to postgres-shared/src/types/time.rs
diff --git a/postgres/src/types/type_gen.rs b/postgres-shared/src/types/type_gen.rs
similarity index 100%
rename from postgres/src/types/type_gen.rs
rename to postgres-shared/src/types/type_gen.rs
diff --git a/postgres/src/types/uuid.rs b/postgres-shared/src/types/uuid.rs
similarity index 100%
rename from postgres/src/types/uuid.rs
rename to postgres-shared/src/types/uuid.rs
diff --git a/postgres/Cargo.toml b/postgres/Cargo.toml
index 1d89e01c..d65f474d 100644
--- a/postgres/Cargo.toml
+++ b/postgres/Cargo.toml
@@ -21,17 +21,18 @@ name = "test"
 path = "tests/test.rs"
 
 [features]
-with-bit-vec = ["bit-vec"]
-with-chrono = ["chrono"]
-with-eui48 = ["eui48"]
+with-bit-vec = ["postgres-shared/with-bit-vec"]
+with-chrono = ["postgres-shared/with-chrono"]
+with-eui48 = ["postgres-shared/with-eui48"]
+with-serde_json = ["postgres-shared/with-serde_json"]
+with-time = ["postgres-shared/time"]
+with-uuid = ["postgres-shared/with-uuid"]
+
 with-openssl = ["openssl"]
 with-native-tls = ["native-tls"]
 with-rustc-serialize = ["rustc-serialize"]
 with-schannel = ["schannel"]
 with-security-framework = ["security-framework"]
-with-serde_json = ["serde_json"]
-with-time = ["time"]
-with-uuid = ["uuid"]
 
 no-logging = []
 
@@ -41,17 +42,12 @@ fallible-iterator = "0.1.3"
 hex = "0.2"
 log = "0.3"
 postgres-protocol = "0.2"
-bit-vec = { version = "0.4", optional = true }
-chrono = { version = "0.2.14", optional = true }
-eui48 = { version = "0.1", optional = true }
+
 openssl = { version = "0.9", optional = true }
 native-tls = { version = "0.1", optional = true }
 rustc-serialize = { version = "0.3", optional = true }
 schannel = { version = "0.1", optional = true }
 security-framework = { version = "0.1.2", optional = true }
-serde_json = { version = ">= 0.6, < 0.9", optional = true }
-time = { version = "0.1.14", optional = true }
-uuid = { version = ">= 0.1, < 0.4", optional = true }
 
 postgres-shared = { path = "../postgres-shared" }
 
diff --git a/postgres/src/lib.rs b/postgres/src/lib.rs
index 8fa3ffe0..fdc2ce25 100644
--- a/postgres/src/lib.rs
+++ b/postgres/src/lib.rs
@@ -77,6 +77,8 @@ extern crate hex;
 #[macro_use]
 extern crate log;
 extern crate postgres_protocol;
+#[macro_use]
+#[macro_export]
 extern crate postgres_shared;
 
 use fallible_iterator::FallibleIterator;
@@ -101,7 +103,7 @@ use priv_io::MessageStream;
 use rows::{Rows, LazyRows};
 use stmt::{Statement, Column};
 use transaction::{Transaction, IsolationLevel};
-use types::{IsNull, Kind, Type, SessionInfo, Oid, Other, WrongType, ToSql, FromSql, Field};
+use types::{IsNull, Kind, Type, SessionInfo, Oid, Other, ToSql, FromSql, Field};
 
 #[macro_use]
 mod macros;
@@ -1360,10 +1362,6 @@ trait LazyRowsNew<'trans, 'stmt> {
            -> LazyRows<'trans, 'stmt>;
 }
 
-trait SessionInfoNew<'a> {
-    fn new(params: &'a HashMap<String, String>) -> SessionInfo<'a>;
-}
-
 trait StatementInternals<'conn> {
     fn new(conn: &'conn Connection,
            info: Arc<StatementInfo>,
@@ -1384,14 +1382,6 @@ trait NotificationsNew<'conn> {
     fn new(conn: &'conn Connection) -> Notifications<'conn>;
 }
 
-trait WrongTypeNew {
-    fn new(ty: Type) -> WrongType;
-}
-
-trait FieldNew {
-    fn new(name: String, type_: Type) -> Field;
-}
-
 trait TransactionInternals<'conn> {
     fn new(conn: &'conn Connection, depth: u32) -> Transaction<'conn>;
 
diff --git a/postgres/src/rows.rs b/postgres/src/rows.rs
index f1d2117f..1c3a47a0 100644
--- a/postgres/src/rows.rs
+++ b/postgres/src/rows.rs
@@ -10,7 +10,7 @@ use std::io;
 use std::ops::Deref;
 use std::slice;
 
-use {Result, SessionInfoNew, RowsNew, LazyRowsNew, StatementInternals, WrongTypeNew};
+use {Result, RowsNew, LazyRowsNew, StatementInternals};
 use transaction::Transaction;
 use types::{FromSql, SessionInfo, WrongType};
 use stmt::{Statement, Column};
diff --git a/postgres/src/stmt.rs b/postgres/src/stmt.rs
index fbe235f9..88761b18 100644
--- a/postgres/src/stmt.rs
+++ b/postgres/src/stmt.rs
@@ -14,7 +14,7 @@ use types::{SessionInfo, Type, ToSql};
 use rows::{Rows, LazyRows};
 use transaction::Transaction;
 use {bad_response, err, Connection, StatementInternals, Result, RowsNew, InnerConnection,
-     SessionInfoNew, LazyRowsNew, ColumnNew, StatementInfo, TransactionInternals};
+     LazyRowsNew, ColumnNew, StatementInfo, TransactionInternals};
 
 /// A prepared statement.
 pub struct Statement<'conn> {
diff --git a/postgres/src/types.rs b/postgres/src/types.rs
new file mode 100644
index 00000000..c7b3f281
--- /dev/null
+++ b/postgres/src/types.rs
@@ -0,0 +1,4 @@
+//! Traits dealing with Postgres data types
+
+#[doc(inline)]
+pub use postgres_shared::types::*;