Merge pull request #4834 from LucaCappelletti94/hash-derive

Added `Hash` trait derive (and some `Eq` and `PartialEq`) to `PostgreSQL` types

Author: weiznich

diesel/src/pg/backend.rs

@@ -169,7 +169,7 @@ impl LikeIsAllowedForType<crate::sql_types::Binary> for Pg {}
 
 // Using the same field names as tokio-postgres
 /// See Postgres documentation for SQL Commands NOTIFY and LISTEN
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, PartialEq, Eq, Hash)]
 pub struct PgNotification {
     /// process ID of notifying server process
     pub process_id: i32,

diesel/src/pg/types/date_and_time/mod.rs

@@ -15,7 +15,7 @@ mod std_time;
 mod time;
 
 #[cfg(feature = "postgres_backend")]
-#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, AsExpression, FromSqlRow)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, AsExpression, FromSqlRow)]
 #[diesel(sql_type = Timestamp)]
 #[diesel(sql_type = Timestamptz)]
 /// Timestamps are represented in Postgres as a 64 bit signed integer representing the number of
@@ -30,7 +30,7 @@ impl Defaultable for PgTimestamp {
 }
 
 #[cfg(feature = "postgres_backend")]
-#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, AsExpression, FromSqlRow)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, AsExpression, FromSqlRow)]
 #[diesel(sql_type = Date)]
 /// Dates are represented in Postgres as a 32 bit signed integer representing the number of julian
 /// days since January 1st 2000. This struct is a dumb wrapper type, meant only to indicate the
@@ -47,7 +47,7 @@ impl Defaultable for PgDate {
 /// microseconds since midnight. This struct is a dumb wrapper type, meant only to indicate the
 /// integer's meaning.
 #[cfg(feature = "postgres_backend")]
-#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, AsExpression, FromSqlRow)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, AsExpression, FromSqlRow)]
 #[diesel(sql_type = Time)]
 pub struct PgTime(pub i64);
 
@@ -62,7 +62,7 @@ impl Defaultable for PgTime {
 /// representing number of months. This struct is a dumb wrapper type, meant only to indicate the
 /// meaning of these parts.
 #[cfg(feature = "postgres_backend")]
-#[derive(Debug, Clone, Copy, PartialEq, Eq, AsExpression, FromSqlRow)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, AsExpression, FromSqlRow)]
 #[diesel(sql_type = Interval)]
 pub struct PgInterval {
     /// The number of whole microseconds

diesel/src/pg/types/money.rs

@@ -18,7 +18,7 @@ use crate::sql_types::{BigInt, Money};
 /// use diesel::data_types::PgMoney as Pence; // 1/100th unit of Pound
 /// use diesel::data_types::PgMoney as Fils; // 1/1000th unit of Dinar
 /// ```
-#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, AsExpression, FromSqlRow)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, AsExpression, FromSqlRow)]
 #[diesel(sql_type = Money)]
 pub struct PgMoney(pub i64);
 

diesel/src/pg/types/pg_lsn.rs

@@ -9,7 +9,7 @@ use byteorder::{NetworkEndian, ReadBytesExt, WriteBytesExt};
 
 /// A type encoding a position in the PostgreSQL *Write Ahead Log* (WAL).
 /// In Postgres, it is represented as an unsigned 64 bit integer.
-#[derive(Debug, Default, Copy, Clone, PartialEq, Eq, AsExpression, FromSqlRow)]
+#[derive(Debug, Default, Copy, Clone, PartialEq, Eq, Hash, AsExpression, FromSqlRow)]
 #[diesel(sql_type = sql_types::PgLsn)]
 pub struct PgLsn(pub u64);