In Mongo, when using w: 1 in a write concern, the write operation is acknowledged after being successfully applied to the primary's instance memory. However, w: 1 alone does not guarantee durability unless combined with j: true (journaling). Running standalone Mongo, as we did in the tests, defaults to j: false. I have explicitly set it to true in the testing script to make write comparisons to Postgres objective. You can dive deeper into this here: https://www.mongodb.com/docs/manual/reference/write-concern/#acknowledgment-behavior and here: https://www.mongodb.com/docs/manual/core/journaling/. Unfortunately, docs are a bit convoluted about it
令冯艺东欣慰的是，提案得到了相关部门的积极回应。这几年间，他看到绿色债券品种日益丰富，绿色融资通道逐步优化，尤其是在山东绿色低碳高质量发展先行区建设中，金融“活水”精准滴灌的效果日益显现。
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