Fix off by one error in JSON extract path code.
Bug report by David Wheeler, diagnosis assistance from Tom Lane.
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@ -682,9 +682,13 @@ get_array_start(void *state)
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ereport(ERROR,
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(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
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errmsg("cannot extract field from a non-object")));
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/* initialize array count for this nesting level */
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/*
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* initialize array count for this nesting level
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* Note: the lex_level seen by array_start is one less than that seen by
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* the elements of the array.
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*/
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if (_state->search_type == JSON_SEARCH_PATH &&
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lex_level <= _state->npath)
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lex_level < _state->npath)
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_state->array_level_index[lex_level] = -1;
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}
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