PQconnectdbParams

Function

PQconnectdbParams is used to establish a new connection with the database server.

Prototype

PGconn *PQconnectdbParams(const char * const *keywords,
                          const char * const *values,
                          int expand_dbname);

Parameter

Table 1 PQconnectdbParams parameters

Keyword	Parameter Description
keywords	An array of strings, each of which is a keyword.
values	Value assigned to each keyword.
expand_dbname	When expand_dbname is non-zero, the dbname keyword value can be recognized as a connection string. Only dbname that first appears is expanded in this way, and any subsequent dbname value is treated as a database name.

Return Value

PGconn * points to the object pointer that contains a connection. The memory is applied for by the function internally.

Precautions

This function establishes a new database connection using the parameters taken from two NULL-terminated arrays. Unlike PQsetdbLogin, the parameter set can be extended without changing the function signature. Therefore, use of this function (or its non-blocking analogs PQconnectStartParams and PQconnectPoll) is preferred for new application programming.

Example

For details, see Example.

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