MDEV-38264: Fix failed assertion in json_find_path with trailing commas#4733
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abhishek593 wants to merge 1 commit intoMariaDB:10.11from
Open
MDEV-38264: Fix failed assertion in json_find_path with trailing commas#4733abhishek593 wants to merge 1 commit intoMariaDB:10.11from
abhishek593 wants to merge 1 commit intoMariaDB:10.11from
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grooverdan
reviewed
Mar 5, 2026
mysql-test/main/func_json.test
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| SELECT JSON_VALUE('{"a":[1,2]}', '$.a[*]'); | ||
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| --echo # End of 10.11 Test | ||
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note test should be above the line above.
The function json_skip_array_and_count() was trapping syntax errors (e.g., trailing commas) in a local engine copy. Because the error state wasn't propagated back to the main engine, json_find_path() would proceed with an inconsistent state, eventually triggering an assertion failure. This patch ensures that any error encountered during the lookahead scan is propagated to the primary engine. This allows the parser to fail gracefully with a syntax error instead of crashing.
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The function json_skip_array_and_count() was trapping syntax errors (e.g., trailing commas) in a local engine copy. Because the error state wasn't propagated back to the main engine, json_find_path() would proceed with an inconsistent state, eventually triggering an assertion failure. This patch ensures that any error encountered during the lookahead scan is propagated to the primary engine. This allows the parser to fail gracefully with a syntax error instead of crashing.
Changes: