Fix null pointer handling in array iteration#2313
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Previously, when iterating through an agtype container, the code would access `elem->val` even when `elem` was null. This adds a null check to set the result type to AGTV_NULL when the element is null, preventing a potential segmentation fault. Fixes: 4274f10 ("Added the toStringList() function (apache#1084)") Found by PostgresPro. Signed-off-by: Maksim Korotkov <[email protected]>
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Previously, when iterating through an agtype container, the code would access
elem->valeven whenelemwas null.This adds a null check to set the result type to AGTV_NULL when the element is null, preventing a potential segmentation fault.
Fixes: 4274f10 ("Added the toStringList() function (#1084)")
Found by PostgresPro.