pgsql/src backend/commands/vacuum.c backend/ut ...

CVSROOT:	/cvsroot
Module name:	pgsql
Changes by:	momjian@postgresql.org	02/07/20 00:57:13

Modified files:
	src/backend/commands: vacuum.c 
	src/backend/utils/time: tqual.c 
	src/test/regress: parallel_schedule serial_schedule 

Log message:
	This patch fixes a regression caused by my recent changes to heap
	tuple header.  The fix is based on the thought that HEAP_MOVED_IN is
	not needed any more as soon as HEAP_XMIN_COMMITTED has been set.  So
	in tqual.c and vacuum.c the HEAP_MOVED bits are cleared when
	HEAP_XMIN_COMMITTED is set.
	
	Vacuum robustness is enhanced by rearranging ifs, so that we have a
	chance to elog(ERROR, ...) before an assertion fails.
	
	A new regression test is included.
	
	Manfred Koizar