PostgreSQL Data Types	Destination Data Type
int, int2, int4, smallint, integer, serial, serial2, serial4	int
bigint, bigserial, int8, serial8	bigint
float, float4, real, numeric	float
double precision, float8	double
boolean	boolean
date, timestamp without time zone, timestamp with time zone	timestamptz
box, bpchar, char, character, character varying, json, jsonb, jsonpath, name, numrange, path, text, tid, tsquery, tsrange, tstzrange, uuid, varbit, varchar, xml, inet, bit, int2vector, daterange, time with time zone, time without time zone	string

timestamptz timezone

OLake always ingests timestamp data in UTC format, independent of the source timezone.