build failed for postgresql-15.3

[genezhang]

I didn't try 15.1 or 15.2, but it was failing for 15.3:

pg_tm_aux.c:48:49: error: ‘ThisTimeLineID’ undeclared (first use in this function); did you mean ‘TimeLineID’?
   48 |  List    *timelineHistory = readTimeLineHistory(ThisTimeLineID);

For 14.x, ThisTimeLineID could be found in access/xlog.h:extern PGDLLIMPORT TimeLineID ThisTimeLineID; /* current TLI */ It is no longer in 15.3 access/xlog.h.

Since I'm not familiar with the PG code, couldn't resolve it. Would appreciate it much if this could be made to work with PG 15. Thanks.

[genezhang]

Just found out that in 15, GetWALInsertionTimeLine() replaces the global ThisTimeLineID, as I guess this name is also used as a field in structures. FYI. So I added the following lines before using ThisTimeLineID in pg_tm_aux:

#if (PG_VERSION_NUM >= 150000)
        TimeLineID ThisTimeLineID = GetWALInsertionTimeLine();
#endif

Build succeeded now. Thx.

[x4m]

Hi! Thanks for letting me know. Can you plz send a pull request?

[genezhang]

Thanks Andrey. https://github.com/x4m/pg_tm_aux/pull/10