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@ -106,11 +106,11 @@ WHERE t.a > 7; |
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9 | j | {a9,b9,c9} |
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(2 rows) |
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-- should generate "no connection available" error |
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-- should generate "connection not available" error |
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SELECT * |
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FROM dblink('SELECT * FROM foo') AS t(a int, b text, c text[]) |
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WHERE t.a > 7; |
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ERROR: dblink: no connection available |
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ERROR: dblink_record: connection not available |
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-- create a persistent connection |
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SELECT dblink_connect('dbname=regression'); |
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dblink_connect |
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@ -172,10 +172,10 @@ SELECT dblink_close('rmt_foo_cursor'); |
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OK |
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(1 row) |
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-- should generate "cursor rmt_foo_cursor does not exist" error |
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-- should generate "cursor not found: rmt_foo_cursor" error |
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SELECT * |
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FROM dblink_fetch('rmt_foo_cursor',4) AS t(a int, b text, c text[]); |
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ERROR: dblink_fetch: cursor rmt_foo_cursor does not exist |
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ERROR: dblink_fetch: cursor not found: rmt_foo_cursor |
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-- close the persistent connection |
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SELECT dblink_disconnect(); |
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dblink_disconnect |
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@ -183,11 +183,12 @@ SELECT dblink_disconnect(); |
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OK |
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(1 row) |
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-- should generate "no connection available" error |
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-- should generate "no connection to the server" error |
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SELECT * |
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FROM dblink('SELECT * FROM foo') AS t(a int, b text, c text[]) |
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WHERE t.a > 7; |
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ERROR: dblink: no connection available |
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ERROR: dblink: sql error: no connection to the server |
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-- put more data into our slave table, first using arbitrary connection syntax |
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-- but truncate the actual return value so we can use diff to check for success |
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SELECT substr(dblink_exec('dbname=regression','INSERT INTO foo VALUES(10,''k'',''{"a10","b10","c10"}'')'),1,6); |
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@ -268,3 +269,198 @@ SELECT dblink_disconnect(); |
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OK |
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(1 row) |
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-- |
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-- tests for the new named persistent connection syntax |
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-- |
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-- should generate "missing "=" after "myconn" in connection info string" error |
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SELECT * |
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FROM dblink('myconn','SELECT * FROM foo') AS t(a int, b text, c text[]) |
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WHERE t.a > 7; |
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ERROR: dblink: connection error: missing "=" after "myconn" in connection info string |
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-- create a named persistent connection |
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SELECT dblink_connect('myconn','dbname=regression'); |
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dblink_connect |
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---------------- |
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OK |
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(1 row) |
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-- use the named persistent connection |
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SELECT * |
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FROM dblink('myconn','SELECT * FROM foo') AS t(a int, b text, c text[]) |
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WHERE t.a > 7; |
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a | b | c |
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----+---+--------------- |
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8 | i | {a8,b8,c8} |
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9 | j | {a9,b9,c9} |
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10 | k | {a10,b10,c10} |
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(3 rows) |
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-- create a second named persistent connection |
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-- should error with "cannot save named connection" |
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SELECT dblink_connect('myconn','dbname=regression'); |
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NOTICE: cannot use a connection name more than once |
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ERROR: dblink_connect: cannot save named connection |
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-- create a second named persistent connection with a new name |
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SELECT dblink_connect('myconn2','dbname=regression'); |
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dblink_connect |
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---------------- |
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OK |
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(1 row) |
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-- use the second named persistent connection |
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SELECT * |
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FROM dblink('myconn2','SELECT * FROM foo') AS t(a int, b text, c text[]) |
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WHERE t.a > 7; |
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a | b | c |
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----+---+--------------- |
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8 | i | {a8,b8,c8} |
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9 | j | {a9,b9,c9} |
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10 | k | {a10,b10,c10} |
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(3 rows) |
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-- close the second named persistent connection |
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SELECT dblink_disconnect('myconn2'); |
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dblink_disconnect |
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------------------- |
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OK |
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(1 row) |
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-- open a cursor |
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SELECT dblink_open('myconn','rmt_foo_cursor','SELECT * FROM foo'); |
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dblink_open |
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------------- |
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OK |
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(1 row) |
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-- fetch some data |
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SELECT * |
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FROM dblink_fetch('myconn','rmt_foo_cursor',4) AS t(a int, b text, c text[]); |
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a | b | c |
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---+---+------------ |
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0 | a | {a0,b0,c0} |
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1 | b | {a1,b1,c1} |
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2 | c | {a2,b2,c2} |
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3 | d | {a3,b3,c3} |
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(4 rows) |
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SELECT * |
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FROM dblink_fetch('myconn','rmt_foo_cursor',4) AS t(a int, b text, c text[]); |
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a | b | c |
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---+---+------------ |
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4 | e | {a4,b4,c4} |
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5 | f | {a5,b5,c5} |
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6 | g | {a6,b6,c6} |
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7 | h | {a7,b7,c7} |
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(4 rows) |
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-- this one only finds three rows left |
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SELECT * |
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FROM dblink_fetch('myconn','rmt_foo_cursor',4) AS t(a int, b text, c text[]); |
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a | b | c |
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----+---+--------------- |
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8 | i | {a8,b8,c8} |
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9 | j | {a9,b9,c9} |
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10 | k | {a10,b10,c10} |
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(3 rows) |
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-- close the cursor |
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SELECT dblink_close('myconn','rmt_foo_cursor'); |
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dblink_close |
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-------------- |
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OK |
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(1 row) |
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-- should generate "cursor not found: rmt_foo_cursor" error |
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SELECT * |
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FROM dblink_fetch('myconn','rmt_foo_cursor',4) AS t(a int, b text, c text[]); |
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ERROR: dblink_fetch: cursor not found: rmt_foo_cursor |
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-- close the named persistent connection |
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SELECT dblink_disconnect('myconn'); |
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dblink_disconnect |
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------------------- |
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OK |
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(1 row) |
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-- should generate "missing "=" after "myconn" in connection info string" error |
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SELECT * |
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FROM dblink('myconn','SELECT * FROM foo') AS t(a int, b text, c text[]) |
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WHERE t.a > 7; |
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ERROR: dblink: connection error: missing "=" after "myconn" in connection info string |
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-- create a named persistent connection |
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SELECT dblink_connect('myconn','dbname=regression'); |
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dblink_connect |
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---------------- |
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OK |
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(1 row) |
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-- put more data into our slave table, using named persistent connection syntax |
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-- but truncate the actual return value so we can use diff to check for success |
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SELECT substr(dblink_exec('myconn','INSERT INTO foo VALUES(11,''l'',''{"a11","b11","c11"}'')'),1,6); |
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substr |
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-------- |
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INSERT |
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(1 row) |
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-- let's see it |
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SELECT * |
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FROM dblink('myconn','SELECT * FROM foo') AS t(a int, b text, c text[]); |
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a | b | c |
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----+---+--------------- |
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0 | a | {a0,b0,c0} |
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1 | b | {a1,b1,c1} |
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2 | c | {a2,b2,c2} |
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3 | d | {a3,b3,c3} |
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4 | e | {a4,b4,c4} |
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5 | f | {a5,b5,c5} |
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6 | g | {a6,b6,c6} |
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7 | h | {a7,b7,c7} |
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8 | i | {a8,b8,c8} |
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9 | j | {a9,b9,c9} |
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10 | k | {a10,b10,c10} |
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11 | l | {a11,b11,c11} |
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(12 rows) |
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-- change some data |
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SELECT dblink_exec('myconn','UPDATE foo SET f3[2] = ''b99'' WHERE f1 = 11'); |
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dblink_exec |
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------------- |
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UPDATE 1 |
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(1 row) |
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-- let's see it |
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SELECT * |
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FROM dblink('myconn','SELECT * FROM foo') AS t(a int, b text, c text[]) |
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WHERE a = 11; |
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a | b | c |
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----+---+--------------- |
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11 | l | {a11,b99,c11} |
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(1 row) |
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-- delete some data |
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SELECT dblink_exec('myconn','DELETE FROM foo WHERE f1 = 11'); |
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dblink_exec |
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------------- |
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DELETE 1 |
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(1 row) |
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-- let's see it |
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SELECT * |
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FROM dblink('myconn','SELECT * FROM foo') AS t(a int, b text, c text[]) |
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WHERE a = 11; |
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a | b | c |
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---+---+--- |
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(0 rows) |
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-- close the named persistent connection |
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SELECT dblink_disconnect('myconn'); |
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dblink_disconnect |
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------------------- |
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OK |
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(1 row) |
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-- close the named persistent connection again |
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-- should get "connection named "myconn" not found" error |
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SELECT dblink_disconnect('myconn'); |
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ERROR: dblink_disconnect: connection named "myconn" not found |
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Bruce Momjian
23 years ago