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Peter Geoghegan d2bf06db37 pg_amcheck: avoid unhelpful verification attempts. ... Avoid calling contrib/amcheck functions with relations that are unsuitable for checking. Specifically, don't attempt verification of temporary relations, or indexes whose pg_index entry indicates that the index is invalid, or not ready. These relations are not supported by any of the contrib/amcheck functions, for reasons that are pretty fundamental. For example, the implementation of REINDEX CONCURRENTLY can add its own "transient" pg_index entries, which has rather unclear implications for the B-Tree verification functions, at least in the general case -- so they just treat it as an error. It falls to the amcheck caller (in this case pg_amcheck) to deal with the situation at a higher level. pg_amcheck now simply treats these conditions as additional "visibility concerns" when it queries system catalogs. This is a little arbitrary. It seems to have the least problems among any of the available alternatives. Author: Mark Dilger <mark.dilger@enterprisedb.com> Reported-By: Alexander Lakhin <exclusion@gmail.com> Reviewed-By: Peter Geoghegan <pg@bowt.ie> Reviewed-By: Robert Haas <robertmhaas@gmail.com> Bug: #17212 Discussion: https://postgr.es/m/17212-34dd4a1d6bba98bf@postgresql.org Backpatch: 14-, where pg_amcheck was introduced.		4 years ago
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src	pg_amcheck: avoid unhelpful verification attempts.	4 years ago
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