On 9th of December, Robert Haas committed patch:
Allow EXPLAIN (ANALYZE, VERBOSE) to display per-worker statistics.
The original parallel sequential scan commit included only very limited
changes to the EXPLAIN output. Aggregated totals from all workers were
displayed, but there was no way to see what each individual worker did
or to distinguish the effort made by the workers from the effort made by
Per a gripe by Thom Brown (and maybe others). Patch by me, reviewed
by Amit Kapila.
Continue reading Waiting for 9.6 – Allow EXPLAIN (ANALYZE, VERBOSE) to display per-worker statistics.
On 8th of December, Robert Haas committed patch:
psql: Support multiple -c and -f options, and allow mixing them.
To support this, we must reconcile some historical anomalies in the
behavior of -c. In particular, as a backward-incompatibility, -c no
longer implies --no-psqlrc.
Pavel Stehule (code) and Catalin Iacob (documentation). Review by
Michael Paquier and myself. Proposed behavior per Tom Lane.
Continue reading Waiting for 9.6 – psql: Support multiple -c and -f options, and allow mixing them.
Someone asked today on irc about grouping data, that contains timestamps, into “partitions".
Usually when someone wants something like this, you can do grouping by date_trunc(), but this time, this person, wanted to group data that all timestamps are within given interval from each other.
I'm not sure I understood him/her right, but I think he/she wanted something like this:
Continue reading Grouping data by timestamp and interval