wordpress 잘못연결된 category 수정
UPDATE wp_term_relationships SET term_taxonomy_id = 1 WHERE term_taxonomy_id = 2
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kaTex
https://katex.org/docs/supported.html \frac{A}{B} \ {A \over B } \ \quad \\quad\quad \cfrac{A}{B} A_B \ne A^B \\\rightarrow \bar{A} \lambda \ \color{blue}{what}
