db_schema.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<schema xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:framework:Setup/Declaration/Schema/etc/schema.xsd">
    <table name="catalog_url_rewrite_product_category" resource="default" engine="innodb"
           comment="url_rewrite_relation">
        <column xsi:type="int" name="url_rewrite_id" padding="10" unsigned="true" nullable="false" identity="false"
                comment="url_rewrite_id"/>
        <column xsi:type="int" name="category_id" padding="10" unsigned="true" nullable="false" identity="false"
                comment="category_id"/>
        <column xsi:type="int" name="product_id" padding="10" unsigned="true" nullable="false" identity="false"
                comment="product_id"/>
        <constraint xsi:type="foreign" referenceId="CAT_URL_REWRITE_PRD_CTGR_PRD_ID_CAT_PRD_ENTT_ENTT_ID"
                    table="catalog_url_rewrite_product_category" column="product_id"
                    referenceTable="catalog_product_entity" referenceColumn="entity_id" onDelete="CASCADE"/>
        <constraint xsi:type="foreign" referenceId="FK_BB79E64705D7F17FE181F23144528FC8"
                    table="catalog_url_rewrite_product_category" column="url_rewrite_id" referenceTable="url_rewrite"
                    referenceColumn="url_rewrite_id" onDelete="CASCADE"/>
        <constraint xsi:type="foreign" referenceId="CAT_URL_REWRITE_PRD_CTGR_CTGR_ID_CAT_CTGR_ENTT_ENTT_ID"
                    table="catalog_url_rewrite_product_category" column="category_id"
                    referenceTable="catalog_category_entity" referenceColumn="entity_id" onDelete="CASCADE"/>
        <index referenceId="CATALOG_URL_REWRITE_PRODUCT_CATEGORY_CATEGORY_ID_PRODUCT_ID" indexType="btree">
            <column name="category_id"/>
            <column name="product_id"/>
        </index>
    </table>
</schema>