Обсуждение: pgsql: SQL/JSON: Correctly enforce the default ON EMPTY behavior
SQL/JSON: Correctly enforce the default ON EMPTY behavior Currently, when the ON EMPTY clause is not present, the ON ERROR clause (implicit or explicit) dictates the behavior when jsonpath evaluation in ExecEvalJsonExprPath() results in an empty sequence. That is an oversight in the commit 6185c9737c. This commit fixes things so that a NULL is returned instead in that case which is the default behavior when the ON EMPTY clause is not present. Reported-by: Markus Winand Discussion: https://postgr.es/m/F7DD1442-265C-4220-A603-CB0DEB77E91D%40winand.at Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/03ec203164119f11f0eab4c83c97a8527e2b108d Modified Files -------------- src/backend/parser/parse_expr.c | 27 ++++++++++++-------- src/test/regress/expected/sqljson_jsontable.out | 19 ++++++++++---- src/test/regress/expected/sqljson_queryfuncs.out | 32 +++++++++++++++--------- src/test/regress/sql/sqljson_jsontable.sql | 8 +++--- src/test/regress/sql/sqljson_queryfuncs.sql | 18 ++++++------- 5 files changed, 64 insertions(+), 40 deletions(-)