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Allow "dbname" from connection string to be overridden in PQconnectDBParams

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If the "dbname" attribute in PQconnectDBParams contained a connection string
or URI (and expand_dbname = TRUE), the database name from the connection
string could not be overridden by a subsequent "dbname" keyword in the
array. That was not intentional; all other options can be overridden.
Furthermore, any subsequent "dbname" caused the connection string from the
first dbname value to be processed again, overriding any values for the same
options that were given between the connection string and the second dbname
option.

In the passing, clarify in the docs that only the first dbname option in the
array is parsed as a connection string.

Alex Shulgin. Backpatch to all supported versions.
This commit is contained in:
Heikki Linnakangas
2014-11-25 17:12:07 +02:00
parent 811015ff9a
commit 6c1d521af3
2 changed files with 16 additions and 6 deletions
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5
doc/src/sgml/libpq.sgml
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@ -124,7 +124,10 @@ PGconn *PQconnectdbParams(const char * const *keywords,
<para>
When <literal>expand_dbname</literal> is non-zero, the
<parameter>dbname</parameter> key word value is allowed to be recognized
as a connection string. More details on the possible formats appear in
as a connection string. Only the first occurrence of
<parameter>dbname</parameter> is expanded this way, any subsequent
<parameter>dbname</parameter> value is processed as plain database name. More
details on the possible connection string formats appear in
<xref linkend="libpq-connstring">.
</para>