Hi Hackers,
Currently, VACUUM commands allow you to specify one table or all of the tables in the current database to vacuum. I’ve
recentlyfound myself wishing I could specify multiple tables in a single VACUUM statement. For example, this would be
convenientwhen there are several large tables in a database and only a few need cleanup for XID purposes. Is this a
featurethat the community might be interested in?
I’ve attached my first attempt at introducing this functionality. In the patch, I’ve extended the table_name parameter
inthe VACUUM grammar to a qualified_name_list. While this fits into the grammar decently well, I suspect that it may
bedesirable to be able to specify a column list for each table as well (e.g. VACUUM foo (a), bar (b)). The attached
patchrequires that only one table be specified in order to specify a column list. But before I spend too much more
timeworking on this, I thought I’d see how pgsql-hackers@ felt about this feature.
Thanks,
Nathan Bossart
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