Hello all,
today I've started to change the structure of one of my databases and
removed everything from it. Created new tables, come through database with
vacuumlo, say vacuum; vacuum analyze; I expected that I will have quite small
disk space occupied after this... And the result was a surprise...
Indices became VERY large even when table is empty!!!
-rw------- 1 postgres postgres 0 May 29 14:25 inbox
-rw------- 1 postgres postgres 3162112 May 29 14:25 inbox_id_key
And lots of pg_* indices are incredibly large. Like:
-rw------- 1 postgres postgres 90112 May 29 16:27 pg_attribute
-rw------- 1 postgres postgres 37920768 May 29 16:26 pg_attribute_relid_attnam_index
-rw------- 1 postgres postgres 15671296 May 29 16:26 pg_attribute_relid_attnum_index
-rw------- 1 postgres postgres 16384 May 29 16:27 pg_class
-rw------- 1 postgres postgres 4136960 May 29 16:26 pg_class_oid_index
-rw------- 1 postgres postgres 10846208 May 29 16:26 pg_class_relname_index
I know that I had quite big (>30000) amount of BLOBs.But there're only 5 of them inside now.
And this is what registered in pg_class.
Looks like bug in vacuum... Or I missed something?
BTW, Postgresql 7.0, Linux 2.2.15.
--
Sincerely Yours,
Denis Perchine
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