{"id":294,"date":"2023-09-20T10:24:45","date_gmt":"2023-09-20T07:24:45","guid":{"rendered":"https:\/\/aristov.tech\/blog\/?p=294"},"modified":"2024-02-03T18:37:54","modified_gmt":"2024-02-03T15:37:54","slug":"chto-novogo-v-postgresql-16","status":"publish","type":"post","link":"https:\/\/aristov.tech\/blog\/chto-novogo-v-postgresql-16\/","title":{"rendered":"\u0427\u0442\u043e \u043d\u043e\u0432\u043e\u0433\u043e \u0432 PostgreSQL 16"},"content":{"rendered":"\n<p>\u041d\u0430 \u043f\u0440\u043e\u0448\u043b\u043e\u0439 \u043d\u0435\u0434\u0435\u043b\u0435 \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u043d\u043e\u0432\u043e\u0439 <a href=\"https:\/\/www.postgresql.org\/about\/news\/postgresql-16-released-2715\/\">16 \u0432\u0435\u0440\u0441\u0438\u0438 \u0421\u0423\u0411\u0414 PostgreSQL<\/a>. \u0414\u0430\u0432\u0430\u0439\u0442\u0435 \u043f\u043e\u0441\u043c\u043e\u0442\u0440\u0438\u043c, \u0447\u0442\u043e \u043d\u0430\u043c \u043f\u0440\u0438\u0433\u043e\u0442\u043e\u0432\u0438\u043b\u0438.<\/p>\n\n\n\n<p>\u041d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u0437\u043d\u0430\u0447\u0438\u043c\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u043a\u043e\u0441\u043d\u0443\u043b\u0438\u0441\u044c \u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0440\u0435\u043f\u043b\u0438\u043a\u0430\u0446\u0438\u0438, \u0430 \u0438\u043c\u0435\u043d\u043d\u043e \u0434\u043e\u0431\u0430\u0432\u0438\u043b\u0438 \u0434\u0432\u0435 \u043e\u043f\u0446\u0438\u0438:<\/p>\n\n\n\n<p>CREATE SUBSCRIPTION sub CONNECTION &#187; PUBLICATION pub WITH (copy_data = on, <strong>binary<\/strong>=true, <strong>streaming<\/strong>=parallel);<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>binary = true<\/strong> &#8212; \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u043f\u0435\u0440\u0432\u0438\u0447\u043d\u0443\u044e \u0438\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0431\u0438\u043d\u0430\u0440\u043d\u044b\u0439 \u0444\u043e\u0440\u043c\u0430\u0442 &#8212; \u0443\u0441\u043a\u043e\u0440\u0435\u043d\u0438\u0435 \u0434\u043e 30-50%<\/li>\n\n\n\n<li><strong>streaming=parallel<\/strong> &#8212; \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0442\u044c \u0440\u0435\u043f\u043b\u0438\u043a\u0430\u0446\u0438\u044e \u0442\u0435\u043a\u0443\u0449\u0438\u0445 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439, \u043f\u043e\u043a\u0430 \u043e\u043d\u0438 \u0435\u0449\u0435 \u043d\u0435 \u0437\u0430\u0444\u0438\u043a\u0441\u0438\u0440\u043e\u0432\u0430\u043d\u044b. \u041f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0443\u043b\u0443\u0447\u0448\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0434\u043e 100%, \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e \u043f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u043e\u0433\u043e \u043a\u043e\u043c\u043c\u0438\u0442\u0430 \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 remote_apply.<\/li>\n<\/ul>\n\n\n\n<p>\u0411\u043e\u043b\u0435\u0435 \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u043e \u0441 \u043f\u0440\u0438\u043c\u0435\u0440\u0430\u043c\u0438 \u043c\u043e\u0436\u043d\u043e \u043e\u0437\u043d\u0430\u043a\u043e\u043c\u0438\u0442\u044c\u0441\u044f \u0432 <a href=\"https:\/\/www.pgedge.com\/blog\/postgresql-16-logical-replication-improvements-in-action\">\u0441\u0442\u0430\u0442\u044c\u0435<\/a>.<\/p>\n\n\n\n<p>\u0422\u0430\u043a\u0436\u0435 \u0442\u0435\u043f\u0435\u0440\u044c \u043c\u043e\u0436\u043d\u043e \u0441\u0442\u0440\u043e\u0438\u0442\u044c \u043a\u0430\u0441\u043a\u0430\u0434\u043d\u0443\u044e \u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u0443\u044e \u0440\u0435\u043f\u043b\u0438\u043a\u0430\u0446\u0438\u044e \u0438 \u0443\u043b\u0443\u0447\u0448\u0435\u043d\u043d\u043e\u0435 \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u0438\u0435 active-active \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u043e\u0432 \u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0440\u0435\u043f\u043b\u0438\u043a\u0430\u0446\u0438\u0438 \u043e\u0434\u043d\u043e\u0439 \u0442\u0430\u0431\u043b\u0438\u0446\u044b \u0434\u043b\u044f \u043e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0445 \u0432\u0441\u0442\u0430\u0432\u043e\u043a \u0438 \u0430\u043f\u0434\u0435\u0439\u0442\u043e\u0432.<\/p>\n\n\n\n<p>\u041a\u043e\u043d\u0435\u0447\u043d\u043e \u0432 \u043a\u0430\u0436\u0434\u043e\u0439 \u043d\u043e\u0432\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u0443\u043b\u0443\u0447\u0448\u0430\u044e\u0442\u0441\u044f \u043c\u043e\u043c\u0435\u043d\u0442\u044b \u043f\u043e \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438, \u0430 \u0438\u043c\u0435\u043d\u043d\u043e:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0443\u0441\u043a\u043e\u0440\u0435\u043d\u0430 \u0440\u0430\u0431\u043e\u0442\u0430 bulk load \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430 COPY TO \u0432 \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043a\u0435\u0439\u0441\u0430\u0445 \u0434\u043e 300%<\/li>\n\n\n\n<li>\u0443\u043b\u0443\u0447\u0448\u0435\u043d\u043e \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u0438\u0435 \u043f\u043b\u0430\u043d\u043e\u0432 \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u043e\u043c \u0434\u043b\u044f \u0430\u0433\u0440\u0435\u0433\u0430\u0442\u043d\u044b\u0445 \u0444\u0443\u043d\u043a\u0446\u0438\u0439 c distinct \u0438 order by, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0434\u0440\u0443\u0433\u0438\u0445<\/li>\n\n\n\n<li>\u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u0431\u0430\u043b\u0430\u043d\u0441\u0438\u0440\u043e\u0432\u043a\u0438 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0445 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0443 libpq. \u0422\u0435\u043f\u0435\u0440\u044c \u043a\u043b\u0438\u0435\u043d\u0442 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0442\u044c\u0441\u044f \u043a \u0440\u0430\u0437\u043d\u044b\u043c \u0445\u043e\u0441\u0442\u0430\u043c, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043c\u043e\u0433\u0443\u0442 \u0432\u044b\u0431\u0438\u0440\u0430\u0442\u044c\u0441\u044f \u043a\u0430\u043a \u0432 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u043e\u043c, \u0442\u0430\u043a \u0438 \u0432 \u0441\u043b\u0443\u0447\u0430\u0439\u043d\u043e\u043c \u043f\u043e\u0440\u044f\u0434\u043a\u0435. \u0415\u0441\u043b\u0438 \u0445\u043e\u0441\u0442 \u043d\u0435\u0434\u043e\u0441\u0442\u0443\u043f\u0435\u043d, \u0431\u0443\u0434\u0435\u043c \u043f\u044b\u0442\u0430\u0442\u044c\u0441\u044f \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0438\u0442\u044c\u0441\u044f \u043a \u0434\u0440\u0443\u0433\u043e\u043c\u0443 \u0441\u0435\u0440\u0432\u0435\u0440\u0443.<\/li>\n<\/ul>\n\n\n\n<p>\u0412\u043d\u0435\u0441\u0435\u043d\u044b \u043d\u0435\u0431\u043e\u043b\u044c\u0448\u0438\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0432 \u043c\u043e\u043d\u0438\u0442\u043e\u0440\u0438\u043d\u0433 &#8212; \u0430 \u0438\u043c\u0435\u043d\u043d\u043e \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u043e \u043f\u043e\u043b\u0435 \u0432 <a href=\"https:\/\/www.postgresql.org\/docs\/16\/monitoring-stats.html#MONITORING-PG-STAT-ALL-TABLES-VIEW\"><code>pg_stat_all_tables<\/code><\/a> \u0441\u043e \u0432\u0440\u0435\u043c\u0435\u043d\u0435\u043c \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u0441\u043a\u0430\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0442\u0430\u0431\u043b\u0438\u0446\u044b \u0438 \u0440\u044f\u0434 \u0434\u0440\u0443\u0433\u0438\u0445 \u043d\u0435\u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u043f\u0440\u0430\u0432\u043e\u043a.<\/p>\n\n\n\n<p>\u0412 \u0446\u0435\u043b\u043e\u043c \u0440\u0435\u043b\u0438\u0437 \u043f\u043e\u043b\u0443\u0447\u0438\u043b\u0441\u044f \u0443\u0434\u0430\u0447\u043d\u044b\u043c, \u043d\u043e \u043a\u0430\u043a \u043e\u0431\u044b\u0447\u043d\u043e, \u0434\u043b\u044f \u043f\u0440\u043e\u0434\u0430\u043a\u0448\u043d \u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0443\u044e \u043f\u043e\u0434\u043e\u0436\u0434\u0430\u0442\u044c \u043c\u0438\u043d\u0438\u043c\u0443\u043c 2 \u043c\u0438\u043d\u043e\u0440\u043d\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0442.\u0435. 16.2 \u0441 \u0444\u0438\u043a\u0441\u043e\u043c \u0431\u0430\u0433\u043e\u0432.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u041d\u0430 \u043f\u0440\u043e\u0448\u043b\u043e\u0439 \u043d\u0435\u0434\u0435\u043b\u0435 \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u043d\u043e\u0432\u043e\u0439 16 \u0432\u0435\u0440\u0441\u0438\u0438 \u0421\u0423\u0411\u0414 PostgreSQL. \u0414\u0430\u0432\u0430\u0439\u0442\u0435 \u043f\u043e\u0441\u043c\u043e\u0442\u0440\u0438\u043c, \u0447\u0442\u043e \u043d\u0430\u043c \u043f\u0440\u0438\u0433\u043e\u0442\u043e\u0432\u0438\u043b\u0438. \u041d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u0437\u043d\u0430\u0447\u0438\u043c\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u043a\u043e\u0441\u043d\u0443\u043b\u0438\u0441\u044c \u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0440\u0435\u043f\u043b\u0438\u043a\u0430\u0446\u0438\u0438, \u0430 \u0438\u043c\u0435\u043d\u043d\u043e \u0434\u043e\u0431\u0430\u0432\u0438\u043b\u0438 \u0434\u0432\u0435 \u043e\u043f\u0446\u0438\u0438: CREATE SUBSCRIPTION sub CONNECTION &#187; PUBLICATION pub WITH (copy_data = on, binary=true, streaming=parallel); \u0411\u043e\u043b\u0435\u0435 \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u043e \u0441 \u043f\u0440\u0438\u043c\u0435\u0440\u0430\u043c\u0438 \u043c\u043e\u0436\u043d\u043e \u043e\u0437\u043d\u0430\u043a\u043e\u043c\u0438\u0442\u044c\u0441\u044f \u0432 \u0441\u0442\u0430\u0442\u044c\u0435. \u0422\u0430\u043a\u0436\u0435 \u0442\u0435\u043f\u0435\u0440\u044c \u043c\u043e\u0436\u043d\u043e \u0441\u0442\u0440\u043e\u0438\u0442\u044c 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