BUG #2096: bug in a SPI sample document

The following bug has been logged online:

Bug reference:      2096
Logged by:          Yoshihisa Nakano
Email address:      nakano.yosihisa@jp.fujitsu.com
PostgreSQL version: 8.1.0
Operating system:   RedHat Enterprise Linux ES 3.0
Description:        bug in a SPI sample document
Details:

There is a difference between the result of the SPI
example in the doc and the actual result of that.


Doc 40.5 Examples
=> SELECT * FROM a;
 x
---
 1                  -- no rows in a (0) + 1
(1 row)

=> INSERT INTO a VALUES (execq('SELECT * FROM a', 0) + 1);
INFO:  EXECQ:  0
INSERT 167713 1


I tried this example, but INFO showed 1, not 0. I
think the value of INFO in doc is wrong, because the
value of row is 1 at this time.

This bug seems to exist also in 7.3.x, 7.4.x and 8.0.x.