postgres

History

Tom Lane 875b0c62fa When dealing with multiple grouping columns coming from the same table,

clamp the estimated number of groups to table row count over 10, instead
of table row count; this reflects a heuristic that people probably won't
group over a near-unique set of columns, and the knowledge that we don't
currently have any way to estimate the correlation of the columns better
than guessing.  This change creates a trivial plan change in one of the
regression tests.

2005-01-28 20:34:27 +00:00

backend

When dealing with multiple grouping columns coming from the same table,

2005-01-28 20:34:27 +00:00

bin

Adjust mkdir_p to do stat() before trying mkdir(). Avoids problems on

2005-01-28 00:34:32 +00:00

corba

…

include

Improve planner's estimation of the space needed for HashAgg plans:

2005-01-28 19:34:28 +00:00