Add cost estimation of range @> and <@ operators. The estimates are based on the existing lower bound histogram, and a new histogram of range lengths.
Bump catversion, because the range length histogram now needs to be present in statistic slot kind 6, or you get an error on @> and <@ queries. (A re-ANALYZE would be enough to fix that, though) Alexander Korotkov, with some refactoring by me. Branch ------ master Details ------- http://git.postgresql.org/pg/commitdiff/59d0bf9dca58b237902c2fd1507e8bc5d54d4a63 Modified Files -------------- src/backend/utils/adt/rangetypes_selfuncs.c | 541 ++++++++++++++++++++++++- src/backend/utils/adt/rangetypes_typanalyze.c | 125 ++++++- src/include/catalog/catversion.h | 2 +- src/include/catalog/pg_operator.h | 1 + src/include/catalog/pg_statistic.h | 12 +- 5 files changed, 667 insertions(+), 14 deletions(-) -- Sent via pgsql-committers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
