Add psql variables to track success/failure of SQL queries.
This patch adds ERROR, SQLSTATE, and ROW_COUNT, which are updated after
every query, as well as LAST_ERROR_MESSAGE and LAST_ERROR_SQLSTATE,
which are updated only when a query fails. The expected usage of these
is for scripting.
Fabien Coelho, reviewed by Pavel Stehule
Discussion: https://postgr.es/m/alpine.DEB.2.20.1704042158020.12290@lancre
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/69835bc8988812c960f4ed5aeee86b62ac73602a
Modified Files
--------------
doc/src/sgml/ref/psql-ref.sgml | 44 +++++++++++++
src/bin/psql/common.c | 71 ++++++++++++++++++++
src/bin/psql/help.c | 11 +++-
src/bin/psql/startup.c | 4 ++
src/test/regress/expected/psql.out | 131 +++++++++++++++++++++++++++++++++++++
src/test/regress/sql/psql.sql | 64 ++++++++++++++++++
6 files changed, 324 insertions(+), 1 deletion(-)
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