On Fri, Mar 29, 2019 at 09:13:35AM +0100, Peter Eisentraut wrote: > So, we're getting buildfarm failures, only with clang. I can reproduce > those (with clang).
Indeed, I can reproduce the failures using -O2 with clang. I am wondering if we are not missing a volatile flag somewhere and that some code reordering is at cause here. > It seems the issue is somewhere near indexcmds.c "Phase 6 of REINDEX > CONCURRENTLY". More eyes welcome. Here is a short reproducer: create materialized view aam as select 1 AS a; create index aai on aam(a); reindex table CONCURRENTLY aam; -- Michael
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