Handle lack of DSM slots in parallel btree build, take 2.
Commit 74618e77 added a new check intended to fix a bug, but put
it in the wrong place so that parallel btree build was always
disabled. Do the check after we've actually tried to create
a DSM segment. Back-patch to 11, like the earlier commit.
Reviewed-by: Peter Geoghegan
Discussion: https://postgr.es/m/CAH2-WzmDABkJzrNnvf%2BOULK-_A_j9gkYg_Dz-H62jzNv4eKQTw%40mail.gmail.com
Branch
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REL_11_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/c4a2041a43c92c566c42c7ae8029868be317f8d9
Modified Files
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src/backend/access/nbtree/nbtsort.c | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)
