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/**
* Definitions of functions to include in the driver. These are embedded in macros so that it is
* possible to generate code based on them in various parts of the system.
*/
// Connect to the database.
PG_FUNCTION(PQconnectdb, PGconn *, const char *info)
// Close a connection.
PG_FUNCTION(PQfinish, void, PGconn *conn)
// Get the status of a connection.
PG_FUNCTION(PQstatus, ConnStatusType, const PGconn *conn)
// Set the notice receiver function.
PG_OPTIONAL_FUNCTION(PQsetNoticeReceiver, PQnoticeReceiver, PGconn *conn, PQnoticeReceiver, void *arg)
// Clear a result object.
PG_FUNCTION(PQclear, void, PGresult *result)
// Execute a statement.
PG_FUNCTION(PQexec, PGresult *, PGconn *conn, const char *statement);
// Prepare a statement.
PG_FUNCTION(PQprepare, PGresult *, PGconn *conn,
const char *stmtName, const char *query,
int nParams, const Oid *paramTypes)
// Close a prepared statement. Note, this was introduced in version 17, which is still quite recent.
PG_OPTIONAL_FUNCTION(PQclosePrepared, PGresult *, PGconn *conn, const char *name)
// Execute a prepared statement without waiting for results.
PG_FUNCTION(PQsendQueryPrepared, int, PGconn *conn, const char *stmt,
int nParams, const char * const * paramValues,
const int *paramLengths, const int *paramFormats,
int resultFormat)
// Set single row mode.
PG_FUNCTION(PQsetSingleRowMode, int, PGconn *conn)
// Get next result.
PG_FUNCTION(PQgetResult, PGresult *, PGconn *conn)
// Check result status.
PG_FUNCTION(PQresultStatus, ExecStatusType, const PGresult *result)
// Get number of affected rows.
PG_FUNCTION(PQcmdTuples, char *, PGresult *result)
// Get status of a result.
PG_FUNCTION(PQcmdStatus, char *, PGresult *result)
// Get information about a prepared statement.
PG_FUNCTION(PQdescribePrepared, PGresult *, PGconn *conn, const char *name)
// Get number of parameters to a prepared statement.
PG_FUNCTION(PQnparams, int, const PGresult *result)
// Get the inferred type of a parameter of a prepared statement.
PG_FUNCTION(PQparamtype, Oid, const PGresult *, int param_number)
// Get number of tuples.
PG_FUNCTION(PQntuples, int, PGresult *result)
// Get number of columns.
PG_FUNCTION(PQnfields, int, PGresult *result)
// Get type of a column.
PG_FUNCTION(PQftype, Oid, PGresult *result, int column_number)
// Get a value.
PG_FUNCTION(PQgetvalue, char *, PGresult *result, int row_number, int column_number)
// Get the length of a value.
PG_FUNCTION(PQgetlength, int, PGresult *result, int row_number, int column_number)
// Check if an element is null.
PG_FUNCTION(PQgetisnull, int, PGresult *result, int row_number, int column_number)
// Get error message.
PG_FUNCTION(PQerrorMessage, char *, const PGconn *conn)
PG_FUNCTION(PQresultErrorMessage, char *, const PGresult *res)
// Cancellation, new interface:
PG_OPTIONAL_FUNCTION(PQcancelCreate, PGcancelConn *, PGconn *conn)
PG_OPTIONAL_FUNCTION(PQcancelFinish, void, PGcancelConn *conn)
PG_OPTIONAL_FUNCTION(PQcancelBlocking, int, PGcancelConn *conn)
// Cancellation, old interface (deprecated, but required for version 16):
PG_OPTIONAL_FUNCTION(PQgetCancel, PGcancel *, PGconn *conn)
PG_OPTIONAL_FUNCTION(PQfreeCancel, void, PGcancel *c)
PG_OPTIONAL_FUNCTION(PQcancel, int, PGcancel *c, char *errbuf, int errbufsize)
// Tell Emacs what is going on:
/* Local Variables: */
/* mode: c */
/* End: */
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