SQL/JSON: Fix JSON_TABLE() column deparsing
The deparsing code in get_json_expr_options() unnecessarily emitted
the default column-specific ON ERROR / EMPTY behavior when the
top-level ON ERROR behavior in JSON_TABLE was set to ERROR. Fix that
by not overriding the column-specific default, determined based on
the column's JsonExprOp in get_json_table_columns(), with
JSON_BEHAVIOR_ERROR when that is the top-level ON ERROR behavior.
Note that this only removes redundancy; the current deparsing output
is not incorrect, just redundant.
Reviewed-by: Jian He <jian.universality@gmail.com>
Discussion: https://postgr.es/m/CACJufxEo4sUjKCYtda0_qt9tazqqKPmF1cqhW9KBOUeJFqQd2g@mail.gmail.com
Backpatch-through: 17
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/68222851d5a8d2ca152a97ee69fe18a95970ed20
Modified Files
--------------
src/backend/utils/adt/ruleutils.c | 8 ++++----
src/test/regress/expected/sqljson_jsontable.out | 18 ++++++++++++++++++
src/test/regress/sql/sqljson_jsontable.sql | 5 +++++
3 files changed, 27 insertions(+), 4 deletions(-)
