\c td_db
show SQL_COMPATIBILITY;
 sql_compatibility 
-------------------
 TD
(1 row)

CREATE FOREIGN TABLE STR_EMPTY_COL_NOT_NULL_TD
(
 S1 VARCHAR NOT NULL,
 S2 VARCHAR2 NOT NULL,
 S3 NVARCHAR2 NOT NULL,
 S4 CHAR NOT NULL,
 S5 TSVECTOR NOT NULL,
 S6 RAW NOT NULL,
 S7 TEXT NOT NULL
)
SERVER gsmpp_server
OPTIONS(LOCATION '@abs_srcdir@/data/str_empty.csv',
FORMAT 'csv',
MODE 'private'
);
SELECT * FROM STR_EMPTY_COL_NOT_NULL_TD WHERE S1 IS NULL AND S2 IS NULL AND S3 IS NULL AND S4 IS NULL AND S5 IS NULL AND S6 IS NULL AND S7 IS NULL;
 s1 | s2 | s3 | s4 | s5 | s6 | s7 
----+----+----+----+----+----+----
    |    |    |    |    |    | 
(1 row)

\c regression