When exporting a table create script pgAdmin includes a command "TABLESPACE pg_default;" such as below
CREATE TABLE IF NOT EXISTS "DbTest"."Test" ( "TestID" integer NOT NULL GENERATED ALWAYS AS IDENTITY ( INCREMENT 1 START 1 MINVALUE 1 MAXVALUE 2147483647 CACHE 1 ), "TestName" character varying(80) COLLATE pg_catalog."default" NOT NULL, "CreateTimestamp" timestamp without time zone NOT NULL DEFAULT LOCALTIMESTAMP, "UpdateTimestamp" timestamp without time zone NOT NULL DEFAULT LOCALTIMESTAMP, CONSTRAINT "Test_pk" PRIMARY KEY ("TestID"), )
TABLESPACE pg_default;
As you can see, there's no ";" between ")" and "TABLESPACE", so it's not a command on its own but another clause of the CREATE TABLE statement. It indicates the tablespace for the new table.
