[COMMITTERS] pgsql: Remove pg_stats_ext view

Remove pg_stats_ext view

It was created as equivalent of pg_stats, but since the code underlying
pg_statistic_ext is more convenient than the one for pg_statistic,
pg_stats_ext is no longer useful.

Author: David Rowley
Reviewed-by: Tomas Vondra
Discussion: https://postgr.es/m/CAKJS1f9zAkPUf9nQrqpFBAsrOHvb5eYa2FVNsmCJy1wegcO_TQ@mail.gmail.com

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/3d5facfd9ab66c819ed583b2614b0560405a6aa2

Modified Files
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doc/src/sgml/planstats.sgml          | 12 +++++-------
src/backend/catalog/system_views.sql | 11 -----------
src/test/regress/expected/rules.out  |  9 ---------
3 files changed, 5 insertions(+), 27 deletions(-)