Обсуждение: pgsql: Improve pg_set_attribute_stats() error message.

Improve pg_set_attribute_stats() error message.

Previously, an invalid attribute name was caught, but the error
message was unhelpful.

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/4b096c67e0eed81e287094b9692fff72b9ea3eef

Modified Files
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src/backend/statistics/attribute_stats.c   | 10 ++++++++++
src/test/regress/expected/stats_import.out | 23 ++++++++++++++++++++++-
src/test/regress/sql/stats_import.sql      | 23 ++++++++++++++++++++++-
3 files changed, 54 insertions(+), 2 deletions(-)