Обсуждение: pgsql: SQL/JSON: Correct jsonpath variable name matching
SQL/JSON: Correct jsonpath variable name matching Previously, GetJsonPathVar() allowed a jsonpath expression to reference any prefix of a PASSING variable's name. For example, the following query would incorrectly work: SELECT JSON_QUERY(context_item, jsonpath '$xy' PASSING val AS xyz); The fix ensures that the length of the variable name mentioned in a jsonpath expression matches exactly with the name of the PASSING variable before comparing the strings using strncmp(). Reported-by: Alvaro Herrera (off-list) Discussion: https://postgr.es/m/CA+HiwqFGkLWMvELBH6E4SQ45qUHthgcRH6gCJL20OsYDRtFx_w@mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/0f271e8e8d9c8db0ea86c0d12b3221009b81d8bf Modified Files -------------- src/backend/executor/execExpr.c | 1 + src/backend/utils/adt/jsonpath_exec.c | 4 +++- src/include/utils/jsonpath.h | 1 + src/test/regress/expected/sqljson_queryfuncs.out | 11 +++++++++++ src/test/regress/sql/sqljson_queryfuncs.sql | 5 +++++ 5 files changed, 21 insertions(+), 1 deletion(-)