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SQL/JSON: Fix default ON ERROR behavior for JSON_TABLE

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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
This commit is contained in:
Amit Langote
2024-09-06 13:25:14 +09:00
parent cd680b3921
commit 446d5ad7ae
4 changed files with 34 additions and 3 deletions
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9
src/test/regress/sql/sqljson_jsontable.sql
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@ -552,3 +552,12 @@ CREATE VIEW json_table_view9 AS SELECT * from JSON_TABLE('"a"', '$' COLUMNS (a t
\sv json_table_view9;
DROP VIEW json_table_view8, json_table_view9;
-- Test JSON_TABLE() deparsing -- don't emit default ON ERROR behavior
CREATE VIEW json_table_view8 AS SELECT * from JSON_TABLE('"a"', '$' COLUMNS (a text PATH '$') EMPTY ON ERROR);
\sv json_table_view8;
CREATE VIEW json_table_view9 AS SELECT * from JSON_TABLE('"a"', '$' COLUMNS (a text PATH '$') EMPTY ARRAY ON ERROR);
\sv json_table_view9;
DROP VIEW json_table_view8, json_table_view9;