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Fix dblink_build_sql_insert() and related functions to handle dropped

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columns correctly.  In passing, get rid of some dead logic in the
underlying get_sql_insert() etc functions --- there is no caller that
will pass null value-arrays to them.

Per bug report from Robert Voinea.
This commit is contained in:
Tom Lane
2010-06-15 19:04:45 +00:00
parent 7a1d80b91c
commit 7577975515
3 changed files with 99 additions and 38 deletions
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26
contrib/dblink/sql/dblink.sql
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@ -325,3 +325,29 @@ SELECT dblink_disconnect('myconn');
-- close the named persistent connection again
-- should get 'connection "myconn" not available' error
SELECT dblink_disconnect('myconn');
-- test dropped columns in dblink_build_sql_insert, dblink_build_sql_update
CREATE TEMP TABLE test_dropped
(
col1 INT NOT NULL DEFAULT 111,
id SERIAL PRIMARY KEY,
col2 INT NOT NULL DEFAULT 112,
col2b INT NOT NULL DEFAULT 113
);
INSERT INTO test_dropped VALUES(default);
ALTER TABLE test_dropped
DROP COLUMN col1,
DROP COLUMN col2,
ADD COLUMN col3 VARCHAR(10) NOT NULL DEFAULT 'foo',
ADD COLUMN col4 INT NOT NULL DEFAULT 42;
SELECT dblink_build_sql_insert('test_dropped', '2', 1,
ARRAY['1'::TEXT], ARRAY['2'::TEXT]);
SELECT dblink_build_sql_update('test_dropped', '2', 1,
ARRAY['1'::TEXT], ARRAY['2'::TEXT]);
SELECT dblink_build_sql_delete('test_dropped', '2', 1,
ARRAY['2'::TEXT]);