non-concurrent-reindex (US020)#
Automatic fix is available.
What it does#
Checks non-concurrent reindex.
Why not?#
Reindexing in non-concurrent mode will locks out writes (but not reads) on the table until it is done. This will cause downtime if the table is concurrently being written by other clients.
When should you?#
If the table is empty. If the table is not empty but is not being concurrently written.
Use instead:#
Reindex in concurrent mode: REINDEX .. CONCURRENTLY ...