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authorAlvaro Herrera <alvherre@alvh.no-ip.org>2020-11-30 18:24:55 -0300
committerAlvaro Herrera <alvherre@alvh.no-ip.org>2020-11-30 18:24:55 -0300
commit58ebe967f8a1e34a824d6a0a35728027272041c6 (patch)
tree865410fc5aed0ebfeb0bfff190a1b57b833e4a0a /src/backend/parser/parse_utilcmd.c
parent4823c4f6ac770ebd49b63b0ce64ecfe82987af57 (diff)
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Document concurrent indexes waiting on each other
Because regular CREATE INDEX commands are independent, and there's no logical data dependency, it's not immediately obvious that transactions held by concurrent index builds on one table will block the second phase of concurrent index creation on an unrelated table, so document this caveat. Backpatch this all the way back. In branch master, mention that only some indexes are involved. Author: James Coleman <jtc331@gmail.com> Reviewed-by: David Johnston <david.g.johnston@gmail.com> Discussion: https://postgr.es/m/CAAaqYe994=PUrn8CJZ4UEo_S-FfRr_3ogERyhtdgHAb2WG_Ufg@mail.gmail.com
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