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| author | Peter Geoghegan <pg@bowt.ie> | 2020-02-29 12:10:17 -0800 |
|---|---|---|
| committer | Peter Geoghegan <pg@bowt.ie> | 2020-02-29 12:10:17 -0800 |
| commit | 93ee38eade1b2b4964354b95b01b09e17d6f098d (patch) | |
| tree | 5aabe12b03978f78d1364753844171d68294bbfb /src/backend/utils/adt/numeric.c | |
| parent | 58c47ccfff20b8c125903482725c1dbfd30beade (diff) | |
| download | postgresql-93ee38eade1b2b4964354b95b01b09e17d6f098d.tar.gz postgresql-93ee38eade1b2b4964354b95b01b09e17d6f098d.zip | |
Teach pageinspect about nbtree deduplication.
Add a new bt_metap() column to display the metapage's allequalimage
field. Also add three new columns to contrib/pageinspect's
bt_page_items() function:
* Add a boolean column ("dead") that displays the LP_DEAD bit value for
each non-pivot tuple.
* Add a TID column ("htid") that displays a single heap TID value for
each tuple. This is the TID that is returned by BTreeTupleGetHeapTID(),
so comparable values are shown for pivot tuples, plain non-pivot tuples,
and posting list tuples.
* Add a TID array column ("tids") that displays TIDs from each tuple's
posting list, if any. This works just like the "tids" column from
pageinspect's gin_leafpage_items() function.
No version bump for the pageinspect extension, since there hasn't been a
stable Postgres release since the last version bump (the last bump was
part of commit 58b4cb30).
Author: Peter Geoghegan
Discussion: https://postgr.es/m/CAH2-WzmSMmU2eNvY9+a4MNP+z02h6sa-uxZvN3un6jY02ZVBSw@mail.gmail.com
Diffstat (limited to 'src/backend/utils/adt/numeric.c')
0 files changed, 0 insertions, 0 deletions