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docs: In ecpg, clarify how username/password colon parameters are used

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Backpatch to 9.2.

Patch from Alan B
This commit is contained in:
Bruce Momjian 2013-01-25 11:18:44 -05:00
parent 8936867627
commit 88886c79cc
1 changed files with 4 additions and 1 deletions
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5
doc/src/sgml/ecpg.sgml
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@ -194,9 +194,12 @@ EXEC SQL CONNECT TO unix:postgresql://sql.mydomain.com/mydb AS myconnection USER
EXEC SQL BEGIN DECLARE SECTION;
const char *target = "mydb@sql.mydomain.com";
const char *user = "john";
const char *passwd = "secret";
EXEC SQL END DECLARE SECTION;
...
EXEC SQL CONNECT TO :target USER :user;
EXEC SQL CONNECT TO :target USER :user USING :passwd;
EXEC SQL CONNECT TO :target USER :user/:passwd;
</programlisting>
The last form makes use of the variant referred to above as
character variable reference. You will see in later sections how C