Alvaro Herrera <alvaro.herr...@2ndquadrant.com> writes:
> So I'm +1 on adding this "feature macro".
Concretely, how about the attached? (I also got rid of a recently-added
extra comma. While the compilers we use might not warn about that,
it seems unwise to assume that no user's compiler will.)
I guess one unresolved question is whether we want to mention these in
the SGML docs. I vote "no", because it'll raise the maintenance cost
noticeably. But I can see an argument on the other side.
regards, tom lane
diff --git a/src/interfaces/libpq/libpq-fe.h b/src/interfaces/libpq/libpq-fe.h
index ec378705ad..4677c51e1b 100644
--- a/src/interfaces/libpq/libpq-fe.h
+++ b/src/interfaces/libpq/libpq-fe.h
@@ -28,6 +28,13 @@ extern "C"
*/
#include "postgres_ext.h"
+/*
+ * These symbols may be used in compile-time #ifdef tests for the availability
+ * of newer libpq features.
+ */
+#define LIBPQ_HAS_PIPELINING 1
+#define LIBPQ_HAS_TRACE_FLAGS 1
+
/*
* Option flags for PQcopyResult
*/
@@ -98,7 +105,7 @@ typedef enum
PGRES_COPY_BOTH, /* Copy In/Out data transfer in progress */
PGRES_SINGLE_TUPLE, /* single tuple from larger resultset */
PGRES_PIPELINE_SYNC, /* pipeline synchronization point */
- PGRES_PIPELINE_ABORTED, /* Command didn't run because of an abort
+ PGRES_PIPELINE_ABORTED /* Command didn't run because of an abort
* earlier in a pipeline */
} ExecStatusType;
