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| html | REGEXP_REPLACE(html, '<nav>[^<]*</nav>', '') |
|---|---|
| text1<nav>text2</nav>text3 | text1text3 |
| text1<nav>text2</nav>text3<nav>text4</nav>text5 | text1text3text5 |
| text1<no>text2</no>text3 | text1<no>text2</no>text3 |