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Report progress of CREATE INDEX operations

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This uses the progress reporting infrastructure added by c16dc1aca5,
adding support for CREATE INDEX and CREATE INDEX CONCURRENTLY.

There are two pieces to this: one is index-AM-agnostic, and the other is
AM-specific.  The latter is fairly elaborate for btrees, including
reportage for parallel index builds and the separate phases that btree
index creation uses; other index AMs, which are much simpler in their
building procedures, have simplistic reporting only, but that seems
sufficient, at least for non-concurrent builds.

The index-AM-agnostic part is fairly complete, providing insight into
the CONCURRENTLY wait phases as well as block-based progress during the
index validation table scan.  (The index validation index scan requires
patching each AM, which has not been included here.)

Reviewers: Rahila Syed, Pavan Deolasee, Tatsuro Yamada
Discussion: https://postgr.es/m/20181220220022.mg63bhk26zdpvmcj@alvherre.pgsql
This commit is contained in:
Alvaro Herrera
2019-04-02 15:18:08 -03:00
parent 4d0e994eed
commit ab0dfc961b
37 changed files with 768 additions and 46 deletions
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23
src/backend/utils/adt/amutils.c
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@ -445,3 +445,26 @@ pg_index_column_has_property(PG_FUNCTION_ARGS)
return indexam_property(fcinfo, propname, InvalidOid, relid, attno);
}
/*
* Return the name of the given phase, as used for progress reporting by the
* given AM.
*/
Datum
pg_indexam_progress_phasename(PG_FUNCTION_ARGS)
{
Oid amoid = PG_GETARG_OID(0);
int32 phasenum = PG_GETARG_INT32(1);
IndexAmRoutine *routine;
char *name;
routine = GetIndexAmRoutineByAmId(amoid, true);
if (routine == NULL || !routine->ambuildphasename)
PG_RETURN_NULL();
name = routine->ambuildphasename(phasenum);
if (!name)
PG_RETURN_NULL();
PG_RETURN_TEXT_P(CStringGetTextDatum(name));
}