Module types

Data types in RisingWave.

Re-exports

• pub use crate::array::ListRef;
• pub use crate::array::ListValue;
• pub use crate::array::MapRef;
• pub use crate::array::MapValue;
• pub use crate::array::StructRef;
• pub use crate::array::StructValue;

Modules

• cow 🔒
• data_types
  Convenient macros to generate match arms for DataType.
• datetime 🔒
  Date, time, and timestamp types.
• decimal 🔒
• fields 🔒
• from_sql 🔒
• interval 🔒
• jsonb 🔒
• macros 🔒
• map_type 🔒
• native_type 🔒
• num256 🔒
• ops 🔒
• ordered 🔒
  ScalarImpl and Datum wrappers that implement PartialOrd and Ord with default order type.
• ordered_float 🔒
  Wrappers for total order on Floats. See the OrderedFloat docs for details.
• postgres_type 🔒
• private 🔒
• scalar_impl 🔒
• sentinel 🔒
• serial 🔒
• struct_type 🔒
• successor 🔒
• test_utils
  A separate mod so that use types::* or use interval::* does not use IntervalTestExt by accident.
• timestamptz 🔒
• to_binary 🔒
• to_sql 🔒
• to_text 🔒
• with_data_type 🔒

Macros

• impl_convert 🔒
  impl_convert implements several conversions for Scalar.
• impl_self_as_scalar_ref 🔒
• scalar_impl_enum 🔒
  Define ScalarImpl and ScalarRefImpl with macro.

Structs

• Date
• DefaultOrdered
  Wrapper that delegates PartialOrd and Ord to the DefaultPartialOrd and DefaultOrd implementations of inner type.
• Int256
  A 256-bit signed integer.
• Int256Ref
  A reference to an Int256 value.
• Interval
  Every interval can be represented by a Interval.
• IntervalDisplay
  Wrapper so that Debug for IntervalDisplay would use the concise format of Display for Interval.
• JsonbRef
• JsonbVal
• MapType
  Refer to super::super::array::MapArray for the invariants of a map value.
• Serial
• StructType
  A cheaply cloneable struct type.
• Time
• Timestamp
• Timestamptz
  Timestamp with timezone.

Enums

• DataType
  The set of datatypes that are supported in RisingWave.
• DataTypeName
  Auto-generated discriminant enum variants
• DateTimeField
• DatumCow
  🐮 A borrowed DatumRef or an owned Datum.
• Decimal
• DecimalPowError
• ScalarImpl
  ScalarImpl embeds all possible scalars in the evaluation framework.
• ScalarRefImpl
  ScalarRefImpl embeds all possible scalar references in the evaluation framework.
• Sentinelled
  Sentinelled<T> wraps type T to provide smallest (smaller than any normal T value) and largest (larger than ant normal T value) sentinel value for T.

Traits

• CheckedAdd
  A more general version of num_traits::CheckedAdd that allows Rhs and Output to be different.
• DefaultOrd
  Variant of Ord that compares with default order.
• DefaultPartialOrd
• Fields
  A struct can implements Fields when if can be represented as a relational Row.
• FloatExt
  Similar to num_traits::Float, but without requiring NumCast and ToPrimitive.
• IntoOrdered
• IsNegative
  A simplified version of num_traits::Signed. Unlike Signed::is_negative or f64::is_sign_negative, this returns false for -0.0 to keep consistency among integers, decimals and floats.
• NativeType
• Scalar
  Scalar is a trait over all possible owned types in the evaluation framework.
• ScalarPartialOrd
  ScalarPartialOrd allows comparison between Scalar and ScalarRef.
• ScalarRef
  ScalarRef is a trait over all possible references in the evaluation framework.
• SelfAsScalarRef
  To make sure there is as_scalar_ref for all scalar ref types. See https://github.com/risingwavelabs/risingwave/pull/9977/files#r1208972881
• Successor
  A successor is a term that comes right after a particular value. Suppose n is a number (where n belongs to any whole number), then the successor of n is ‘n+1’. The other terminologies used for a successor are just after, immediately after, and next value.
• ToDatumRef
• ToOwnedDatum
  This trait is to implement to_owned_datum for Option<ScalarImpl>
• ToText
  Converts ScalarRef to pgwire “TEXT” format.
• WithDataType
  A trait for all physical types that can be associated with a DataType.

Functions

• default_partial_cmp_scalar_ref_impl
• hash_datum
  Feeds the raw scalar reference of datum to the given state, which should behave the same as crate::array::Array::hash_at, where NULL value will be carefully handled.
• literal_type_match
  Returns whether the literal matches the data_type.
• write_date_time_tz

Type Aliases

• Datum
• DatumRef
• F32
  A 32-bit floating point type with total order.
• F64
  A 64-bit floating point type with total order.

Derive Macros

• Fields