Module types 

PostgreSQL column types admitted by CDC and their Arrow bindings.

Every supported type has one lossless text-to-Arrow conversion shared by the initial snapshot and pgoutput, so a row read either way decodes to the same Arrow value. Types without such a conversion are rejected at binding time; nothing falls back to text.

Structs

PgColumn

A column descriptor from a PostgreSQL relation.

Constants

BOOL_OID

bool — boolean

BPCHAR_OID

bpchar — fixed-length character (char(n))

BYTEA_OID

bytea — variable-length binary string

CHAR_OID

char — single character (internal type)

DATE_OID

date — calendar date

FLOAT4_OID

float4 (real) — single precision floating-point

FLOAT8_OID

float8 (double precision) — double precision floating-point

INT2_OID

int2 (smallint) — 2-byte signed integer

INT4_ARRAY_OID

int4[]

INT4_OID

int4 (integer) — 4-byte signed integer

INT8_OID

int8 (bigint) — 8-byte signed integer

INTERVAL_OID

interval — time interval

JSONB_OID

jsonb — binary JSON data

JSON_OID

json — JSON data

NAME_OID

name — 63-byte internal name type

NUMERIC_OID

numeric — exact numeric with arbitrary precision

OID_OID

oid — object identifier (unsigned 4 bytes)

TEXT_ARRAY_OID

text[]

TEXT_OID

text — variable-length text

TIMESTAMPTZ_OID

timestamptz — date and time with timezone

TIMESTAMP_OID

timestamp — date and time (without timezone)

TIME_OID

time — time of day (without timezone)

UUID_OID

uuid — universally unique identifier

VARCHAR_OID

varchar — variable-length character string

Functions

pg_type_name

Returns a human-readable name for a PostgreSQL type OID.