67.6. Limitations

|  67.6. Limitations  |              |                       |                  |                          |
|:-------------------:|--------------|-----------------------|------------------|--------------------------|
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## 67.6. Limitations

GIN assumes that indexable operators are strict. This means that `extractValue` will not be called at all on a null item value (instead, a placeholder index entry is created automatically), and `extractQuery` will not be called on a null query value either (instead, the query is presumed to be unsatisfiable). Note however that null key values contained within a non-null composite item or query value are supported.

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|67.5. GIN Tips and Tricks|[Home](index.html)|      67.7. Examples      |

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