fix(postgres): allow rust_decimal::Decimal in PgRange (#1523)

* fix(postgres): allow rust_decimal::Decimal in PgRange

* test(postgres): add tests for BigDecimal and Decimal in ranges

Author: meh

sqlx-core/src/postgres/types/range.rs

@@ -142,6 +142,17 @@ impl Type<Postgres> for PgRange<bigdecimal::BigDecimal> {
     }
 }
 
+#[cfg(feature = "decimal")]
+impl Type<Postgres> for PgRange<rust_decimal::Decimal> {
+    fn type_info() -> PgTypeInfo {
+        PgTypeInfo::NUM_RANGE
+    }
+
+    fn compatible(ty: &PgTypeInfo) -> bool {
+        range_compatible::<rust_decimal::Decimal>(ty)
+    }
+}
+
 #[cfg(feature = "chrono")]
 impl Type<Postgres> for PgRange<chrono::NaiveDate> {
     fn type_info() -> PgTypeInfo {
@@ -227,6 +238,13 @@ impl Type<Postgres> for [PgRange<bigdecimal::BigDecimal>] {
     }
 }
 
+#[cfg(feature = "decimal")]
+impl Type<Postgres> for [PgRange<rust_decimal::Decimal>] {
+    fn type_info() -> PgTypeInfo {
+        PgTypeInfo::NUM_RANGE_ARRAY
+    }
+}
+
 #[cfg(feature = "chrono")]
 impl Type<Postgres> for [PgRange<chrono::NaiveDate>] {
     fn type_info() -> PgTypeInfo {
@@ -288,6 +306,13 @@ impl Type<Postgres> for Vec<PgRange<bigdecimal::BigDecimal>> {
     }
 }
 
+#[cfg(feature = "decimal")]
+impl Type<Postgres> for Vec<PgRange<rust_decimal::Decimal>> {
+    fn type_info() -> PgTypeInfo {
+        PgTypeInfo::NUM_RANGE_ARRAY
+    }
+}
+
 #[cfg(feature = "chrono")]
 impl Type<Postgres> for Vec<PgRange<chrono::NaiveDate>> {
     fn type_info() -> PgTypeInfo {

tests/postgres/types.rs

@@ -425,6 +425,13 @@ test_type!(bigdecimal<sqlx::types::BigDecimal>(Postgres,
     "12345.6789::numeric" == "12345.6789".parse::<sqlx::types::BigDecimal>().unwrap(),
 ));
 
+#[cfg(feature = "bigdecimal")]
+test_type!(numrange_bigdecimal<PgRange<sqlx::types::BigDecimal>>(Postgres,
+    "'(1.3,2.4)'::numrange" == PgRange::from(
+        (Bound::Excluded("1.3".parse::<sqlx::types::BigDecimal>().unwrap()),
+         Bound::Excluded("2.4".parse::<sqlx::types::BigDecimal>().unwrap())))
+));
+
 #[cfg(feature = "decimal")]
 test_type!(decimal<sqlx::types::Decimal>(Postgres,
     "0::numeric" == sqlx::types::Decimal::from_str("0").unwrap(),
@@ -436,6 +443,13 @@ test_type!(decimal<sqlx::types::Decimal>(Postgres,
     "12345.6789::numeric" == sqlx::types::Decimal::from_str("12345.6789").unwrap(),
 ));
 
+#[cfg(feature = "decimal")]
+test_type!(numrange_decimal<PgRange<sqlx::types::Decimal>>(Postgres,
+    "'(1.3,2.4)'::numrange" == PgRange::from(
+        (Bound::Excluded(sqlx::types::Decimal::from_str("1.3").unwrap()),
+         Bound::Excluded(sqlx::types::Decimal::from_str("2.4").unwrap()))),
+));
+
 const EXC2: Bound<i32> = Bound::Excluded(2);
 const EXC3: Bound<i32> = Bound::Excluded(3);
 const INC1: Bound<i32> = Bound::Included(1);