Hi,
I started with empty table with index over
custom_fields | jsonb
field
defined as:
"idx_learners_custom_fields" gin (custom_fields)
Globally gin_pending_list_limit set to 2MB.
Database version is 9.5.2.
Now question:
If table populated with 1M records in single transaction then the final
size of the GIN index is:
4265 MB
but after I performed reindex index idx_learners_custom_fields;
the index size had been reduced 15x to 295 MB.
Is this behavior expected?
--
Maxim Boguk
Senior Postgresql DBA
http://www.postgresql-consulting.com/
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