PQescapeByteaConn - returns wrong string for PG9.1 Beta3

Please let me clarify the bug:

CREATE TABLE "testtable"

(

  "ID" integer NOT NULL,

  "BinaryContents" bytea

);

INSERT INTO "testtable" ("ID", "BinaryContents") values (1, E'\xea2abd8ef3');

returns "invalid byte sequence".

'\xea2abd8ef3' is the string delivered by the PG 9.1 Beta3 server when calling PQescapeByteaConn(). It cannot be further processed by the server itself afterwards! There is a leading '\' missing.

When calling the function for a PG 9.0.1 server, then the result (correctly) is '\\xea2abd8ef3' (with a double-backslash!), and then the insert works fine, both, with PG9.1 Beta3 and PG9.0.1

It is a serious issue, as it will break all existing PostgreSQL applications that deal with binary contents and use PQescapeByteaConn().

Best regards

Petro