Module pgrx::datum

Handing for easily converting Postgres Datum types into their corresponding Rust types and converting Rust types into their corresponding Postgres types

Re-exports

• pub use numeric::AnyNumeric;
• pub use numeric::Numeric;
• pub use datetime_support::*;

Modules

• datetime_support
• numeric
• numeric_support

Structs

• AnyArray
  The anyarray polymorphic pseudo-type.
• AnyElement
  The anyelement polymorphic pseudo-type.
• Array
  An array of some type (eg. TEXT[], int[])
• ArrayIntoIterator
• ArrayIterator
• ArrayTypedIterator
• Date
  A safe wrapper around Postgres DATE type, backed by a pg_sys::DateADT integer value.
• Inet
  An inet type from PostgreSQL
• Internal
  Represents Postgres’ internal data type, which is documented as:
• Interval
  From the PG docs https://www.postgresql.org/docs/current/datatype-datetime.html#DATATYPE-INTERVAL-INPUT Internally interval values are stored as months, days, and microseconds. This is done because the number of days in a month varies, and a day can have 23 or 25hours if a daylight savings time adjustment is involved. The months and days fields are integers while the microseconds field can store fractional seconds. Because intervals are usually created from constant strings or timestamp subtraction, this storage method works well in most cases…
• Json
  A json type from PostgreSQL
• JsonB
  A jsonb type from PostgreSQL
• JsonString
  A wholly Rust-String owned copy of a json type from PostgreSQL
• PgVarlena
  Wraps a Postgres varlena *, presenting it as if it’s a Rust type of a fixed size.
• Range
  A safe deconstruction of a Postgres pg_sys::RangeType struct.
• Time
  A safe wrapper around Postgres TIME type, backed by a pg_sys::TimeADT integer value.
• TimeWithTimeZone
  A safe wrapper around Postgres TIME WITH TIME ZONE type, backed by a pg_sys::TimeTzADT integer value.
• Timestamp
  A safe wrapper around Postgres TIMESTAMP WITHOUT TIME ZONE type, backed by a pg_sys::Timestamp integer value.
• TimestampWithTimeZone
  A safe wrapper around Postgres TIMESTAMP WITH TIME ZONE type, backed by a pg_sys::Timestamp integer value.
• Uuid
  A Universally Unique Identifier (UUID) from PostgreSQL
• VariadicArray
• WithArrayTypeIds
  An Array compatible type which can have its core::any::TypeIds registered for Rust to SQL mapping.
• WithSizedTypeIds
  A type which can have its core::any::TypeIds registered for Rust to SQL mapping.
• WithVarlenaTypeIds
  A PgVarlena compatible type which can have its core::any::TypeIds registered for Rust to SQL mapping.

Enums

• ArraySliceError
• FromTimeError
• RangeBound
  A Postgres Range’s “lower” or “upper” value
• TryFromDatumError
  If converting a Datum to a Rust type fails, this is the set of possible reasons why.

Constants

• POSTGRES_EPOCH_JDATE
• UNIX_EPOCH_JDATE
• USECS_PER_DAY
• USECS_PER_SEC

Traits

• FromDatum
  Convert a (pg_sys::Datum, is_null:bool) pair into a Rust type
• IntoDatum
  Convert a Rust type into a pg_sys::Datum.
• PostgresType
  A tagging trait to indicate a user type is also meant to be used by Postgres Implemented automatically by #[derive(PostgresType)]
• RangeSubType
  This trait allows a struct to be a valid subtype for a RangeType
• WithTypeIds
  A type which can have it’s core::any::TypeIds registered for Rust to SQL mapping.

Functions

• cbor_decode^⚠
• cbor_decode_into_context^⚠

Type Aliases

• UuidBytes