pgsql: SQL/JSON: Fix default ON ERROR behavior for JSON_TABLE

SQL/JSON: Fix default ON ERROR behavior for JSON_TABLE

Use EMPTY ARRAY instead of EMPTY.

This change does not affect the runtime behavior of JSON_TABLE(),
which continues to return an empty relation ON ERROR. It only alters
whether the default ON ERROR behavior is shown in the deparsed output.

Reported-by: Jian He <jian.universality@gmail.com>
Discussion: https://postgr.es/m/CACJufxEo4sUjKCYtda0_qt9tazqqKPmF1cqhW9KBOUeJFqQd2g@mail.gmail.com
Backpatch-through: 17

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/565caaa79af9a6b3853b161b0652527e716326b8

Modified Files
--------------
src/backend/parser/parse_expr.c                 |  4 ++--
src/backend/utils/adt/ruleutils.c               |  2 +-
src/test/regress/expected/sqljson_jsontable.out | 25 +++++++++++++++++++++++++
src/test/regress/sql/sqljson_jsontable.sql      |  5 +++++
4 files changed, 33 insertions(+), 3 deletions(-)