From: | Adam Scott <adam(dot)c(dot)scott(at)gmail(dot)com> |
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To: | pgsql-general(at)lists(dot)postgresql(dot)org |
Subject: | ERROR: out of overflow pages in hash index |
Date: | 2020-07-23 17:51:06 |
Message-ID: | CA+s62-PzoQDjTa5=guh3W0LSEeehiadyEgYvrMrFePz_6tzaJQ@mail.gmail.com |
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Lists: | pgsql-general |
Anyone know if this can be remedied?
ERROR: out of overflow pages in hash index ....
This occurred while waiting for a hash index to be created on a 1,580
GB table (Postgres 11.7). We have > 30 TB of space free.
Here's the line where I think it gets triggered.
And I found that
#define HASH_MAX_BITMAPS Min(BLCKSZ / 8, 1024)
So there looks like a maximum size here, but I couldn't find anything
in the documentation.
What is the maximum size? I am guessing partitioning the table
someway might be a workaround, but it doesn't lend itself very well to
partitioning (i.e. there's no year column, or category or some such).
Help is appreciated!
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