\u062a\u06a9\u06cc\u0647 \u06a9\u0631\u062f\u0646 \u0628\u0631 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u062a\u062c\u0645\u06cc\u0639 \u0634\u062f\u0647 \u062f\u0631 pg_stat_statements<\/li>\n<\/ul>\n\u0628\u0631\u0627\u06cc \u0622\u0646\u0627\u0644\u06cc\u0632 \u06a9\u0631\u062f\u0646 \u0639\u0645\u0644\u06a9\u0631\u062f \u067e\u0633\u062a\u06af\u0631\u0633 \u0648 \u067e\u06cc\u062f\u0627 \u06a9\u0631\u062f\u0646 \u0646\u0642\u0627\u0637 \u062d\u0633\u0627\u0633 \u0627\u0632 \u0645\u062a\u062f\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645\u060c \u0647\u0631 \u06a9\u062f\u0627\u0645 \u0627\u0632 \u0627\u06cc\u0646 \u0631\u0648\u0634\u200c\u0647\u0627 \u0645\u0632\u0627\u06cc\u0627 \u0648 \u0645\u0639\u0627\u06cc\u0628 \u062e\u0627\u0635 \u062e\u0648\u062f \u0631\u0627 \u062f\u0627\u0631\u0646\u062f \u06a9\u0647 \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628 \u0628\u0647 \u062a\u0641\u0635\u06cc\u0644 \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645.<\/p>\n
\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0646 \u0627\u0632 \u0644\u0627\u06af \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627\u06cc \u06a9\u0646\u062f<\/h4>\n
\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0644\u0627\u06af \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627 \u06cc\u06a9 \u0631\u0648\u0634 \u0633\u0646\u062a\u06cc \u0628\u0631\u0627\u06cc \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627\u06cc \u06a9\u0646\u062f \u0627\u0633\u062a. \u0627\u06cc\u062f\u0647 \u06a9\u0644\u06cc \u0628\u0647 \u0627\u06cc\u0646 \u0635\u0648\u0631\u062a \u0627\u0633\u062a:<\/p>\n
\u0627\u06af\u0631 \u06cc\u06a9 \u06a9\u0648\u0626\u0631\u06cc \u0628\u06cc\u0634 \u0627\u0632 \u0632\u0645\u0627\u0646 \u062a\u0639\u06cc\u06cc\u0646 \u0634\u062f\u0647 \u0628\u0647 \u0637\u0648\u0644 \u0628\u06cc\u0627\u0646\u062c\u0627\u0645\u062f\u060c \u06cc\u06a9 \u062e\u0637 \u0628\u0647 \u0644\u0627\u06af \u0627\u0631\u0633\u0627\u0644 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0627\u06cc\u0646 \u0631\u0648\u0634 \u06a9\u0648\u0626\u0631\u06cc \u06a9\u0646\u062f \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u0634\u062f\u0647 \u0648 \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 \u0627\u062f\u0645\u06cc\u0646 \u062f\u06cc\u062a\u0627\u0628\u06cc\u0633 \u0642\u0627\u062f\u0631 \u0627\u0633\u062a \u0622\u0646 \u0631\u0627 \u0628\u0647 \u0631\u0627\u062d\u062a\u06cc \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u06a9\u0646\u062f.<\/p>\n
\u062f\u0631 \u06a9\u0627\u0646\u0641\u06cc\u06af \u0627\u0648\u0644\u06cc\u0647 \u067e\u0633\u062a\u06af\u0631\u0633 \u0627\u06cc\u0646 \u0644\u0627\u06af \u0641\u0639\u0627\u0644 \u0646\u06cc\u0633\u062a \u0648 \u0628\u0627\u06cc\u062f \u0622\u0646 \u0631\u0627 \u0641\u0639\u0627\u0644 \u06a9\u0646\u06cc\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u062c\u0627 \u0686\u0646\u062f \u0627\u0646\u062a\u062e\u0627\u0628 \u062f\u0627\u0631\u06cc\u062f\u060c \u0627\u06af\u0631 \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u062f \u0627\u06cc\u0646 \u0644\u0627\u06af \u0631\u0627 \u0628\u0647 \u0635\u0648\u0631\u062a Global \u0641\u0639\u0627\u0644 \u06a9\u0646\u06cc\u062f \u0628\u0627\u06cc\u0633\u062a\u06cc \u0641\u0627\u06cc\u0644 postgresql.conf \u0631\u0627 \u0628\u0647 \u0634\u06a9\u0644 \u0632\u06cc\u0631 \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0647\u06cc\u062f:<\/p>\n
log_min_duration_statement = 5000\n<\/pre>\n\u0628\u0627 \u0648\u0627\u0631\u062f \u06a9\u0631\u062f\u0646 \u062f\u0633\u062a\u0648\u0631 \u0628\u0627\u0644\u0627\u060c \u067e\u0633\u062a\u06af\u0631\u0633\u060c \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0628\u06cc\u0634\u062a\u0631 \u0627\u0632 5 \u062b\u0627\u0646\u06cc\u0647 \u0637\u0648\u0644 \u0628\u06a9\u0634\u0646\u062f \u0631\u0627 \u06a9\u0648\u0626\u0631\u06cc \u06a9\u0646\u062f \u062a\u0634\u062e\u06cc\u0635 \u062f\u0627\u062f\u0647 \u0648 \u0622\u0646 \u0647\u0627 \u0631\u0627 \u0628\u0647 \u0644\u0627\u06af \u0645\u06cc\u0641\u0631\u0633\u062a\u062f. \u0628\u0627 \u0627\u0646\u062c\u0627\u0645 \u0627\u06cc\u0646 \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0631 \u0641\u0627\u06cc\u0644 \u0630\u06a9\u0631 \u0634\u062f\u0647\u060c \u0646\u06cc\u0627\u0632\u06cc \u0628\u0647 \u0631\u06cc\u200c\u0627\u0633\u062a\u0627\u0631\u062a \u06a9\u0631\u062f\u0646 \u0633\u0631\u0648\u06cc\u0633 \u0646\u06cc\u0632 \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f \u0648 \u06cc\u06a9 reload \u0628\u0647 \u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u06a9\u0627\u0641\u06cc \u0627\u0633\u062a:<\/p>\n
1- postgres=# SELECT pg_reload_conf();\n2- pg_reload_conf \n3- ----------------\n4- t\n5- (1 row)\n<\/pre>\n\u0628\u0627 \u0648\u06cc\u0631\u0627\u06cc\u0634 \u06a9\u0631\u062f\u0646 postgresql.conf \u062a\u063a\u06cc\u06cc\u0631 \u0628\u0631 \u0631\u0648\u06cc \u06a9\u0644 \u062f\u06cc\u062a\u0627\u0628\u06cc\u0633 \u0627\u0646\u062c\u0627\u0645 \u062e\u0648\u0627\u0647\u062f \u0634\u062f \u06a9\u0647 \u0628\u0647 \u0646\u0638\u0631 \u0645\u06cc\u0631\u0633\u062f \u062e\u06cc\u0644\u06cc \u062f\u0642\u06cc\u0642 \u0646\u0628\u0627\u0634\u062f. \u0627\u06af\u0631 \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u062f \u062f\u0642\u062a \u0631\u0627 \u0628\u0627\u0644\u0627 \u0628\u0628\u0631\u06cc\u062f \u0628\u0627\u06cc\u0633\u062a\u06cc \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u06cc\u0648\u0632\u0631 \u062e\u0627\u0635 \u06cc\u0627 \u06cc\u06a9 \u062f\u06cc\u062a\u0627\u0628\u06cc\u0633 \u062e\u0627\u0635 \u0648\u06cc\u0631\u0627\u06cc\u0634 \u0632\u06cc\u0631 \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u062f:<\/p>\n
1- postgres=# ALTER DATABASE test SET log_min_duration_statement = 5000;\n2- ALTER DATABASE\n<\/pre>\nAlter Database \u0628\u0647 \u0645\u0627 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f \u06a9\u0647 \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u0631\u0627 \u0628\u0631 \u0631\u0648\u06cc \u06cc\u06a9 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u062e\u0627\u0635 \u0627\u0646\u062c\u0627\u0645 \u0628\u062f\u0647\u06cc\u0645.
\n\u062f\u0631 \u0627\u06cc\u0646 \u062c\u0627 \u0628\u0631\u0627\u06cc \u062a\u0633\u062a \u06cc\u06a9 \u06a9\u0648\u0626\u0631\u06cc \u06a9\u062f \u0631\u0627 \u0627\u062c\u0631\u0627 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645:<\/p>\n
1- postgres=# \\c test\n2- You are now connected to database \"test\" as user \"hs\".\n3- test=# SELECT pg_sleep(10);\n4- pg_sleep\n5- ----------\n6-\n7- (1 row)\n<\/pre>\n\u0646\u062a\u06cc\u062c\u0647 \u0628\u0647 \u0635\u0648\u0631\u062a \u0644\u0627\u06af \u0632\u06cc\u0631 \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f:<\/p>\n
2018-08-20 08:19:28.151 CEST [22845] LOG: duration: 10010.353 ms statement: SELECT pg_sleep(10);\n<\/pre>\n\u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0627\u06cc\u0646 \u0631\u0648\u0634 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0644\u0627\u0641\u0627\u0635\u0644\u0647 \u0627\u0632 \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627\u06cc \u06a9\u0646\u062f \u0628\u0627 \u062e\u0628\u0631 \u0634\u0648\u06cc\u062f \u0648 \u0647\u0631 \u0632\u0645\u0627\u0646 \u06cc\u06a9\u06cc \u0627\u0632 \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627 \u06a9\u0646\u062f \u0628\u0627\u0634\u062f \u0645\u062a\u0648\u062c\u0647 \u0622\u0646 \u062e\u0648\u0627\u0647\u06cc\u062f \u0634\u062f. \u0647\u0631\u0686\u0646\u062f \u06a9\u0647 \u0645\u0632\u06cc\u062a \u0627\u06cc\u0646 \u0631\u0648\u0634 \u0645\u06cc\u062a\u0648\u0627\u0646\u062f \u062a\u0628\u062f\u06cc\u0644 \u0628\u0647 \u0636\u0639\u0641 \u0622\u0646 \u0646\u06cc\u0632 \u0628\u0634\u0648\u062f \u0686\u0631\u0627 \u06a9\u0647 \u0631\u0648\u0634 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0646 \u0627\u0632 \u0644\u0627\u06af \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627\u06cc \u06a9\u0646\u062f \u0628\u0647 \u0635\u0648\u0631\u062a \u062a\u06a9\u06cc \u0628\u0647 \u062f\u0646\u0628\u0627\u0644 \u06a9\u0648\u0626\u0631\u06cc \u0647\u0627 \u0645\u06cc\u200c\u06af\u0631\u062f\u062f \u0648\u0644\u06cc \u0627\u06af\u0631 \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u062f \u062f\u06cc\u062a\u0627\u0628\u06cc\u0633 \u067e\u0633\u062a\u06af\u0631\u0633 \u062a\u0648\u0633\u0637 \u062a\u0639\u062f\u0627\u062f \u0632\u06cc\u0627\u062f\u06cc \u0627\u0632 \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627\u06cc \u0646\u0647 \u0686\u0646\u062f\u0627\u0646 \u06a9\u0646\u062f \u0627\u06cc\u062c\u0627\u062f \u0634\u062f\u0647 \u0628\u0627\u0634\u062f \u0686\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f\u061f
\n\u0628\u0631\u0627\u06cc \u0645\u062b\u0627\u0644 \u0641\u0631\u0636 \u06a9\u0646\u06cc\u062f \u0647\u0631 \u06a9\u0648\u0626\u0631\u06cc 10 \u062b\u0627\u0646\u06cc\u0647 \u0628\u0647 \u0637\u0648\u0644 \u0645\u06cc\u200c\u0627\u0646\u062c\u0627\u0645\u062f \u0648 \u0645\u0627 \u0622\u0646 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06a9\u0648\u0626\u0631\u06cc \u06a9\u0646\u062f \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645\u061b \u062a\u0627 \u0627\u06cc\u0646\u062c\u0627 \u0647\u0645\u0647 \u0686\u06cc\u0632 \u062e\u0648\u0628 \u067e\u06cc\u0634 \u0645\u06cc\u200c\u0631\u0648\u062f\u060c \u0648\u0644\u06cc \u0627\u06af\u0631 1 \u0645\u06cc\u0644\u06cc\u0648\u0646 \u06a9\u0648\u0626\u0631\u06cc \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u0645 \u06a9\u0647 \u0647\u0631\u06a9\u062f\u0627\u0645 500 \u0645\u06cc\u0644\u06cc \u062b\u0627\u0646\u06cc\u0647 \u0637\u0648\u0644 \u0628\u06a9\u0634\u0646\u062f \u0686\u0647\u061f \u062a\u0645\u0627\u0645 \u0627\u06cc\u0646\u200c\u0647\u0627 \u0647\u06cc\u0686\u200c\u0648\u0642\u062a \u062f\u0631 \u0644\u0627\u06af \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627\u06cc \u06a9\u0646\u062f \u0638\u0627\u0647\u0631 \u0646\u0645\u06cc\u200c\u0634\u0648\u0646\u062f \u0686\u0631\u0627 \u06a9\u0647 \u0628\u0647 \u0646\u0638\u0631 \u0633\u0631\u06cc\u0639 \u0645\u06cc\u200c\u0631\u0633\u0646\u062f. \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 \u0627\u06af\u0631 \u0628\u0631\u0627\u06cc \u067e\u06cc\u062f\u0627 \u06a9\u0631\u062f\u0646 \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627\u06cc \u06a9\u0646\u062f \u0641\u0642\u0637 \u0628\u0647 \u0627\u06cc\u0646 \u0631\u0648\u0634 \u0645\u062a\u06a9\u06cc \u0628\u0627\u0634\u06cc\u062f \u0627\u062d\u062a\u0645\u0627\u0644\u0627 \u0645\u0648\u0641\u0642 \u0646\u062e\u0648\u0627\u0647\u06cc\u062f \u0628\u0648\u062f.<\/p>\n
\u0686\u06a9 \u06a9\u0631\u062f\u0646 \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0647\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc\u06cc \u0646\u0627\u067e\u0627\u06cc\u062f\u0627\u0631<\/h4>\n
\u06af\u0627\u0647\u06cc \u0627\u0648\u0642\u0627\u062a \u0647\u0645\u0647 \u0686\u06cc\u0632 \u062f\u0631 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u062e\u0648\u0628 \u067e\u06cc\u0634 \u0645\u06cc\u200c\u0631\u0648\u062f \u0648\u0644\u06cc \u0647\u0631 \u0627\u0632 \u06af\u0627\u0647\u06cc \u06cc\u06a9 \u06a9\u0648\u0626\u0631\u06cc \u062e\u0631\u0627\u0628 \u0645\u06cc\u200c\u0634\u0648\u062f \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 \u0628\u0627\u06cc\u062f \u0622\u0646 \u0631\u0627 \u067e\u06cc\u062f\u0627 \u06a9\u0631\u062f\u0647 \u0648 \u062f\u0648\u0628\u0627\u0631\u0647 \u0628\u0647 \u062d\u0627\u0644\u062a \u0646\u0631\u0645\u0627\u0644 \u0628\u0627\u0632 \u06af\u0631\u062f\u0627\u0646\u06cc\u0645. \u06cc\u06a9\u06cc \u0627\u0632 \u0631\u0627\u0647\u200c\u0647\u0627\u06cc \u0627\u0646\u062c\u0627\u0645 \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u0627\u0698\u0648\u0644 auto_explain \u0627\u0633\u062a.
\n\u0627\u06cc\u062f\u0647 \u062a\u0642\u0631\u06cc\u0628\u0627 \u0634\u0628\u06cc\u0647 \u0628\u0647 \u0647\u0645\u0627\u0646 \u0686\u06cc\u0632\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 \u0631\u0648\u0634 \u0642\u0628\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u062f: \u0647\u0631 \u0632\u0645\u0627\u0646 \u06a9\u0646\u062f\u06cc \u062f\u0631 \u0633\u06cc\u0633\u062a\u0645 \u0627\u062a\u0641\u0627\u0642 \u0627\u0641\u062a\u0627\u062f \u0648\u0631\u0648\u062f\u06cc \u0644\u0627\u06af \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645. \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 auto_explain \u062a\u0645\u0627\u0645 \u0646\u0642\u0634\u0647 \u0627\u062c\u0631\u0627\u06cc\u06cc (\u0648 \u0646\u0647 \u0641\u0642\u0637 \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627) \u062f\u0631 \u0641\u0627\u06cc\u0644 \u0644\u0627\u06af \u0646\u0645\u0627\u06cc\u0634 \u062f\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f. \u0645\u062b\u0627\u0644 \u0632\u06cc\u0631 \u0631\u0627 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f:<\/p>\n
1- test=# CREATE TABLE t_demo AS\n2- SELECT * FROM generate_series(1, 10000000) AS id;\n3- SELECT 10000000\n4- test=# CREATE INDEX idx_id ON t_demo (id);\n5- CREATE INDEX\n6- test=# ANALYZE;\n7- ANALYZE<\/pre>\nTable \u0627\u06cc \u06a9\u0647 \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0633\u0627\u062e\u062a\u06cc\u0645 10 \u0645\u06cc\u0644\u06cc\u0648\u0646 \u0631\u062f\u06cc\u0641 \u062f\u0627\u0631\u062f. \u062d\u0627\u0644 \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0628\u0647 \u06a9\u0648\u0626\u0631\u06cc \u0632\u06cc\u0631 \u0646\u06af\u0627\u0647 \u06a9\u0646\u06cc\u0645:<\/p>\n
1- test=# explain SELECT * FROM t_demo WHERE id < 10;\n2- QUERY PLAN\n3- ---------------------------------------------------------------------------\n4- Index Only Scan using idx_id on t_demo (cost=0.43..8.61 rows=10 width=4)\n5- Index Cond: (id < 10)\n6- (2 rows)\n7-\n8- test=# explain SELECT * FROM t_demo WHERE id < 1000000000;\n9- QUERY PLAN\n10- ------------------------------------------------------------------\n11- Seq Scan on t_demo (cost=0.00..169248.60 rows=10000048 width=4)\n12- Filter: (id < 1000000000)\n13- JIT:\n14- Functions: 2\n15- Inlining: false\n16- Optimization: false\n17- (6 rows)\n<\/pre>\n\u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627 \u062a\u0642\u0631\u06cc\u0628\u0627 \u0634\u0628\u06cc\u0647 \u0628\u0647 \u0647\u0645 \u0647\u0633\u062a\u0646\u062f \u0627\u0645\u0627 \u067e\u0633\u062a\u06af\u0631\u0633 \u0627\u0632 \u067e\u0644\u0646 \u0627\u062c\u0631\u0627\u06cc\u06cc \u0645\u062a\u0641\u0627\u0648\u062a\u200c\u062a\u0631\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0627\u0648\u0644\u06cc\u0646 \u06a9\u0648\u0626\u0631\u06cc \u0641\u0642\u0637 \u062a\u0639\u062f\u0627\u062f \u0645\u0639\u06cc\u0646\u06cc \u0627\u0632 \u0631\u062f\u06cc\u0641\u200c\u0647\u0627 \u0631\u0627 \u0628\u0647 \u062f\u0633\u062a \u0645\u06cc\u200c\u0622\u0648\u0631\u062f \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0628\u0647 \u062f\u0646\u0628\u0627\u0644 \u0627\u0633\u06a9\u0646 \u0628\u0647 \u0635\u0648\u0631\u062a index \u062e\u0648\u0627\u0647\u062f \u0631\u0641\u062a. \u06a9\u0648\u0626\u0631\u06cc \u062f\u0648\u0645 \u062a\u0645\u0627\u0645 \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0631\u0627 \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0645\u06cc\u200c\u06a9\u0646\u062f \u0648 \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0627\u0633\u06a9\u0646 \u0645\u062a\u0648\u0627\u0644\u06cc \u0631\u0627 \u062a\u0631\u062c\u06cc\u062d \u0645\u06cc\u200c\u062f\u0647\u062f. \u0627\u06af\u0631 \u0686\u0647 \u0628\u0647 \u0646\u0638\u0631 \u0645\u06cc\u200c\u0631\u0633\u062f \u06a9\u0647 \u0646\u0645\u0627\u06cc\u0634 \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0645\u0634\u0627\u0628\u0647 \u0647\u0633\u062a\u0646\u062f \u0627\u0645\u0627 \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627 \u0645\u062a\u0641\u0627\u0648\u062a \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f. \u0627\u0648\u0644\u06cc\u0646 \u06a9\u0648\u0626\u0631\u06cc \u062f\u0631 \u06cc\u06a9 \u0645\u06cc\u0644\u06cc \u062b\u0627\u0646\u06cc\u0647 \u0627\u062c\u0631\u0627 \u0645\u06cc\u200c\u0634\u0648\u062f \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u062f\u0648\u0645\u06cc \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u062a\u0627 1 \u062b\u0627\u0646\u06cc\u0647 \u0637\u0648\u0644 \u0628\u06a9\u0634\u062f.
\n\u067e\u06cc\u062f\u0627 \u06a9\u0631\u062f\u0646 \u06cc\u06a9 \u06a9\u0648\u0626\u0631\u06cc \u06a9\u0647 \u0628\u0647 \u0647\u0631 \u062f\u0644\u06cc\u0644\u06cc \u0645\u062f\u062a \u0632\u0645\u0627\u0646 \u0632\u06cc\u0627\u062f\u06cc \u0628\u0647 \u0637\u0648\u0644 \u0628\u06cc\u0627\u0646\u062c\u0627\u0645\u062f \u062f\u0642\u06cc\u0642\u0627 \u0632\u0645\u0627\u0646\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0641\u0631\u062f \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0627\u0632 auto_explain \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u062f. \u0627\u06cc\u062f\u0647 \u06a9\u0644 \u0628\u0647 \u0627\u06cc\u0646 \u0635\u0648\u0631\u062a \u0627\u0633\u062a \u06a9\u0647: \u0627\u06af\u0631 \u06cc\u06a9 \u06a9\u0648\u0626\u0631\u06cc \u0627\u0632 \u06cc\u06a9 \u0622\u0633\u062a\u0627\u0646\u0647 \u062e\u0627\u0635 \u0632\u0645\u0627\u0646\u06cc \u067e\u06cc\u0634 \u062a\u0631 \u0631\u0641\u062a\u060c Postgresql \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0627\u06cc\u0646 \u067e\u0644\u0646 \u0631\u0627 \u0628\u0647 \u0641\u0627\u06cc\u0644 \u0644\u0627\u06af \u0627\u0631\u0633\u0627\u0644 \u06a9\u0646\u062f.<\/p>\n
\u0645\u062b\u0627\u0644 \u0632\u06cc\u0631 \u0631\u0627 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f:<\/p>\n
1- test=# LOAD 'auto_explain';\n2- LOAD\n3- test=# SET auto_explain.log_analyze TO on;\n4- SET\n5- test=# SET auto_explain.log_min_duration TO 500;\n6- SET\n<\/pre>\n\u062f\u0633\u062a\u0648\u0631 load \u0645\u0627\u0698\u0648\u0644 auto_explain \u0631\u0627 \u062f\u0631 \u062f\u06cc\u062a\u0627\u0628\u06cc\u0633 \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0645\u06cc\u200c\u06a9\u0646\u062f. \u062f\u0631 \u06cc\u06a9 \u0633\u06cc\u0633\u062a\u0645 \u062a\u0648\u0644\u06cc\u062f\u06cc \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0627\u0632 Postgresql.conf \u06cc\u0627 Alter Database\/Alter Table \u0646\u06cc\u0632 \u0628\u0631\u0627\u06cc \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0645\u0627\u0698\u0648\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f. \u0627\u06af\u0631 \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u062f \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0631 postgresql.conf \u0646\u06cc\u0632 \u0627\u0646\u062c\u0627\u0645 \u0634\u0648\u062f\u060c \u062e\u0637 \u0632\u06cc\u0631 \u0631\u0627 \u0628\u0647 \u0641\u0627\u06cc\u0644 \u06a9\u0627\u0646\u0641\u06cc\u06af \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f:<\/p>\n
session_preload_libraries = 'auto_explain';\n<\/pre>\nSession_preload_libraries \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u0645\u0627\u0698\u0648\u0644 \u0628\u0647 \u0637\u0648\u0631 \u067e\u06cc\u0634 \u0641\u0631\u0636 \u0628\u0631 \u0631\u0648\u06cc \u062a\u0645\u0627\u0645 \u06a9\u0627\u0646\u06a9\u0634\u0646\u200c\u0647\u0627\u06cc \u062f\u06cc\u062a\u0627\u0628\u06cc\u0633 \u062a\u0646\u0638\u06cc\u0645 \u0634\u062f\u0647 \u0628\u0627\u0634\u062f. \u062f\u06cc\u06af\u0631 \u0646\u06cc\u0627\u0632\u06cc \u0628\u0647 \u062f\u0633\u062a\u0648\u0631 Load \u0646\u06cc\u0633\u062a\u060c \u0628\u0639\u062f \u0627\u0632 \u0627\u06cc\u062c\u0627\u062f \u0627\u0648\u0644\u06cc\u0646 \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u06a9\u0648\u0626\u0631\u06cc \u0632\u06cc\u0631 \u0631\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f:<\/p>\n
1- test=# SELECT count(*) FROM t_demo GROUP BY id % 2;\n2- count\n3- ---------\n4- 5000000\n5- 5000000\n6- (2 rows)\n<\/pre>\n\u06a9\u0648\u0626\u0631\u06cc \u0628\u0647 \u0628\u06cc\u0634 \u0627\u0632 500 \u0645\u06cc\u0644\u06cc \u062b\u0627\u0646\u06cc\u0647 \u0627\u062d\u062a\u06cc\u0627\u062c \u062f\u0627\u0631\u062f \u0648 \u0633\u067e\u0633 \u062f\u0631 \u0644\u0627\u06af \u0646\u0645\u0627\u06cc\u0634 \u062f\u0627\u062f\u0647 \u0645\u06cc\u0634\u0648\u062f:<\/p>\n
1- 2018-08-20 09:51:59.056 CEST [23256] LOG: duration: 4280.595 ms plan:\n2- Query Text: SELECT count(*) FROM t_demo GROUP BY id % 2;\n3- GroupAggregate (cost=1605370.36..1805371.32 rows=10000048 width=12)\n4- (actual time=3667.207..4280.582 rows=2 loops=1)\n5- Group Key: ((id % 2))\n6- -> Sort (cost=1605370.36..1630370.48 rows=10000048 width=4)\n7- (actual time=3057.351..3866.446 rows=10000000 loops=1)\n8- Sort Key: ((id % 2))\n9- Sort Method: external merge Disk: 137000kB\n10- -> Seq Scan on t_demo (cost=0.00..169248.60 rows=10000048 width=4)\n11- (actual time=65.470..876.695 rows=10000000 loops=1)\n<\/pre>\n\u0645\u0632\u06cc\u062a \u0627\u06cc\u0646 \u0631\u0648\u06cc\u06a9\u0631\u062f \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0634\u0645\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u06a9\u0648\u0626\u0631\u06cc \u0647\u0627\u06cc \u06a9\u0646\u062f \u0631\u0627 \u0628\u0647 \u0631\u0627\u062d\u062a\u06cc \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u06a9\u0646\u06cc\u062f \u0648 \u0628\u0628\u06cc\u0646\u06cc\u062f \u06a9\u0647 \u0686\u0647 \u0632\u0645\u0627\u0646 \u06a9\u0648\u0626\u0631\u06cc \u062f\u0631 \u0645\u0648\u0631\u062f \u0628\u0631\u0646\u0627\u0645\u0647 \u062a\u0635\u0645\u06cc\u0645 \u0627\u0634\u062a\u0628\u0627\u0647\u06cc \u0645\u06cc\u200c\u06af\u06cc\u0631\u062f. \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644 \u062c\u0645\u0639\u200c\u0622\u0648\u0631\u06cc \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0647\u0646\u0648\u0632 \u0645\u0634\u06a9\u0644 \u0627\u0633\u062a \u0686\u0631\u0627 \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0645\u06cc\u0644\u06cc\u0648\u0646\u200c\u0647\u0627 \u06a9\u0648\u0626\u0631\u06cc \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f.<\/p>\n
\u0686\u06a9 \u06a9\u0631\u062f\u0646 Pg_Stat_Statements<\/h4>\n
\u0631\u0648\u0634 \u0633\u0648\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 pg_stat_statements \u0627\u0633\u062a. \u0627\u06cc\u062f\u0647 \u0627\u06cc\u0646 \u0631\u0648\u0634 \u06af\u0631\u0648\u0647\u200c\u0628\u0646\u062f\u06cc \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627\u06cc \u06cc\u06a9\u0633\u0627\u0646\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0641\u0642\u0637 \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627\u06cc \u0645\u062a\u0641\u0627\u0648\u062a\u06cc \u062f\u0627\u0631\u0646\u062f. \u0641\u0639\u0627\u0644 \u06a9\u0631\u062f\u0646 \u0627\u06cc\u0646 \u0648\u06cc\u0698\u06af\u06cc \u0628\u0647 \u0634\u0645\u0627 \u06a9\u0645\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u0627\u0632 \u0647\u0645\u0647 \u0627\u062a\u0641\u0627\u0642\u0627\u062a \u0633\u06cc\u0633\u062a\u0645 \u0628\u0627\u062e\u0628\u0631 \u0634\u0648\u06cc\u062f. \u0628\u0631\u0627\u06cc \u0641\u0639\u0627\u0644 \u06a9\u0631\u062f\u0646 pg_stat_statements \u062e\u0637 \u0632\u06cc\u0631 \u0631\u0627 \u0628\u0647 Postgresql.conf \u0627\u0636\u0627\u0641\u0647 \u06a9\u0631\u062f\u0647 \u0648\u0633\u06cc\u0633\u062a\u0645 \u0631\u0627 \u0631\u06cc\u200c\u0627\u0633\u062a\u0627\u0631\u062a \u06a9\u0646\u06cc\u062f:<\/p>\n
1- shared_preload_libraries = 'pg_stat_statements'\n<\/pre>\n\u0633\u067e\u0633 CREATE EXTENSION pg_stat_statements \u0631\u0627 \u062f\u0631 \u062f\u06cc\u062a\u0627\u0628\u06cc\u0633 \u062e\u0648\u062f \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f \u0648 Postgresql \u0628\u0631\u0627\u06cc \u0634\u0645\u0627 \u06cc\u06a9 \u0646\u0645\u0627 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/p>\n
1- test=# CREATE EXTENSION pg_stat_statements;\n2- CREATE EXTENSION\n3- test=# \\d pg_stat_statements\n4- View \"public.pg_stat_statements\"\n5- Column | Type | Collation | Nullable | Default\n6- ---------------------+------------------+-----------+----------+---------\n7- userid | oid | | |\n8- dbid | oid | | |\n9- queryid | bigint | | |\n10-query | text | | |\n11-calls | bigint | | |\n12-total_time | double precision | | | \n13-min_time | double precision | | |\n14-max_time | double precision | | |\n15-mean_time | double precision | | |\n16-stddev_time | double precision | | |\n17-rows | bigint | | |\n18-shared_blks_hit | bigint | | |\n19-shared_blks_read | bigint | | |\n20-shared_blks_dirtied | bigint | | |\n21-shared_blks_written | bigint | | |\n22-local_blks_hit | bigint | | |\n23-local_blks_read | bigint | | |\n24-local_blks_dirtied | bigint | | |\n25-local_blks_written | bigint | | |\n26-temp_blks_read | bigint | | |\n27-temp_blks_written | bigint | | |\n28-blk_read_time | double precision | | |\n29-blk_write_time | double precision | | |\n<\/pre>\n\u0627\u06cc\u0646 \u0646\u0645\u0627 \u0628\u0647 \u0645\u0627 \u0645\u06cc\u200c\u06af\u0648\u06cc\u062f \u06a9\u0647 \u06a9\u062f\u0627\u0645 \u06a9\u0648\u0626\u0631\u06cc \u0686\u0646\u062f \u0628\u0627\u0631 \u0627\u062c\u0631\u0627 \u0634\u062f\u0647 \u0627\u0633\u062a \u0648 \u062f\u0631 \u0645\u0648\u0631\u062f \u06a9\u0644 \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627\u06cc \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627 \u0648 \u0647\u0645\u0686\u0646\u06cc\u0646 \u062f\u0631 \u0645\u0648\u0631\u062f \u062a\u0648\u0632\u06cc\u0639 \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627 \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u0647\u200c\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0627\u0632 \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627 \u0628\u0647 \u0645\u0627 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0645\u06cc\u200c\u062f\u0647\u062f.
\n\u062f\u0631 \u0627\u062f\u0627\u0645\u0647 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0628\u0647 \u062f\u0633\u062a \u0622\u0645\u062f\u0647 \u0627\u0632 pg_stat_statments \u0631\u0627 \u0645\u0648\u0631\u062f \u0622\u0646\u0627\u0644\u06cc\u0632 \u0646\u06cc\u0632 \u0642\u0631\u0627\u0631 \u062f\u0647\u06cc\u062f.
\n\u0645\u0632\u06cc\u062a \u0627\u06cc\u0646 \u0631\u0648\u0634 \u062f\u0631 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0634\u0645\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0645\u06cc\u0644\u06cc\u0648\u0646\u200c\u0647\u0627 \u06a9\u0648\u0626\u0631\u06cc \u0633\u0631\u06cc\u0639 \u0631\u0627 \u067e\u06cc\u062f\u0627 \u06a9\u0646\u06cc\u062f. \u0639\u0644\u0627\u0648\u0647 \u0628\u0631 \u0622\u0646 \u0627\u06cc\u0646 \u0631\u0648\u0634 \u062f\u0631 \u0645\u0648\u0631\u062f \u0631\u0641\u062a\u0627\u0631 I\/O \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627\u06cc \u0646\u06cc\u0632 \u0628\u0647 \u0634\u0645\u0627 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0645\u06cc\u200c\u062f\u0647\u062f. \u0646\u06a9\u062a\u0647 \u0645\u0646\u0641\u06cc \u0627\u06cc\u0646\u062c\u0627 \u0633\u062a \u06a9\u0647 \u062f\u0646\u0628\u0627\u0644 \u06a9\u0631\u062f\u0646 \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0628\u06cc\u0634\u062a\u0631 \u0645\u0648\u0627\u0642\u0639 \u0633\u0631\u06cc\u0639 \u0648 \u0628\u0639\u0636\u06cc \u0627\u0648\u0642\u0627\u062a \u06a9\u0646\u062f \u0647\u0633\u062a\u0646\u062f \u0645\u0634\u06a9\u0644 \u0627\u0633\u062a.<\/p>\n
\u0646\u062a\u06cc\u062c\u0647<\/h4>\n
\u062f\u0631 \u067e\u0627\u06cc\u0627\u0646 \u0628\u0627\u06cc\u0633\u062a\u06cc \u0628\u062f\u0627\u0646\u06cc\u062f \u06a9\u0647 \u0627\u0632 \u0686\u0647 \u062a\u06a9\u0646\u06cc\u06a9\u06cc\u060c \u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f \u062a\u0627 \u0628\u062a\u0648\u0627\u0646\u06cc\u062f \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627\u06cc \u0622\u0647\u0633\u062a\u0647 \u0631\u0627 \u0628\u0647 \u062e\u0648\u0628\u06cc \u062a\u0634\u062e\u06cc\u0635 \u062f\u0647\u06cc\u062f. \u0627\u0645\u06cc\u062f\u0648\u0627\u0631\u06cc\u0645 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628 \u0628\u0647 \u0634\u0645\u0627 \u0627\u06cc\u062f\u0647 \u06a9\u0644\u06cc \u062f\u0631 \u0632\u0645\u06cc\u0646\u0647 \u0631\u062f\u06cc\u0627\u0628\u06cc \u0645\u0634\u06a9\u0644\u0627\u062a \u0639\u0645\u0644\u06a9\u0631\u062f\u06cc \u0633\u06cc\u0633\u062a\u0645 \u0631\u0627 \u062f\u0627\u062f\u0647 \u0628\u0627\u0634\u062f. \u062f\u0631 \u0635\u0648\u0631\u062a\u06cc \u06a9\u0647 \u0627\u0632 \u062f\u06cc\u062a\u0627\u0628\u06cc\u0633 \u0627\u0628\u0631\u06cc \u067e\u0633\u062a\u06af\u0631\u0633<\/a> \u067e\u0646\u06a9\u06cc\u06a9 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 \u062f\u0627\u0634\u0628\u0648\u0631\u062f \u062f\u06cc\u062a\u0627\u0628\u06cc\u0633 \u0644\u0627\u06af\u200c\u0647\u0627\u06cc \u067e\u0633\u062a\u06af\u0631\u0633 \u0631\u0627 \u0645\u0634\u0627\u0647\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n","protected":false},"excerpt":{"rendered":"\u062f\u0631 \u0635\u0648\u0631\u062a\u06cc \u06a9\u0647 \u0627\u0632 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u067e\u0633\u062a\u06af\u0631\u0633 (Postgresql) \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f\u060c \u062e\u0648\u0628 \u0627\u0633\u062a \u0628\u062f\u0627\u0646\u06cc\u062f \u06a9\u0647 \u0686\u0647 \u06af\u0632\u06cc\u0646\u0647\u200c\u0647\u0627\u06cc\u06cc \u0628\u0631\u0627\u06cc \u0628\u0631\u0631\u0633\u06cc \u0645\u0634\u06a9\u0644\u0627\u062a \u0639\u0645\u0644\u06a9\u0631\u062f\u06cc \u067e\u0633\u062a\u06af\u0631\u0633 \u0648 \u0645\u0634\u062e\u0635 \u06a9\u0631\u062f\u0646 \u0627\u06cc\u0646 \u06a9\u0647 \u0631\u0648\u06cc \u0633\u0631\u0648\u0631 \u0686\u0647 \u0627\u062a\u0641\u0627\u0642\u06cc \u0645\u06cc\u200c\u0627\u0641\u062a\u062f \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f. \u067e\u06cc\u062f\u0627 \u06a9\u0631\u062f\u0646 \u0646\u0642\u0627\u0637 \u0636\u0639\u0641 \u0639\u0645\u0644\u06a9\u0631\u062f\u06cc \u0648 \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627\u06cc \u06a9\u0646\u062f \u062f\u0642\u06cc\u0642\u0627 \u0647\u0645\u0627\u0646 \u0686\u06cc\u0632\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 \u0627\u06cc\u0646 \u067e\u0633\u062a \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645. \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0632\u06cc\u0627\u062f\u06cc \u0628\u0631\u0627\u06cc \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc […]<\/p>\n","protected":false},"author":1,"featured_media":1310,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[28],"tags":[6,13,33,34],"yoast_head":"\n
\u0631\u0627\u0647\u200c\u0647\u0627\u06cc \u062a\u0634\u062e\u06cc\u0635 \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627\u06cc \u06a9\u0646\u062f \u062f\u0631 \u067e\u0633\u062a\u06af\u0631\u0633 PostgreSQL - \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0627\u0628\u0631\u06cc \u067e\u0646\u06a9\u06cc\u06a9<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/getpancake.com\/fa\/postgresql\/\u062a\u0634\u062e\u06cc\u0635-\u06a9\u0648\u0626\u0631\u06cc-\u06a9\u0646\u062f-\u067e\u0633\u062a\u06af\u0631\u0633\/\" \/>\n<meta property=\"og:locale\" content=\"fa_IR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u0631\u0627\u0647\u200c\u0647\u0627\u06cc \u062a\u0634\u062e\u06cc\u0635 \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627\u06cc \u06a9\u0646\u062f \u062f\u0631 \u067e\u0633\u062a\u06af\u0631\u0633 PostgreSQL - \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0627\u0628\u0631\u06cc \u067e\u0646\u06a9\u06cc\u06a9\" \/>\n<meta property=\"og:description\" content=\"\u062f\u0631 \u0635\u0648\u0631\u062a\u06cc \u06a9\u0647 \u0627\u0632 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u067e\u0633\u062a\u06af\u0631\u0633 (Postgresql) \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f\u060c \u062e\u0648\u0628 \u0627\u0633\u062a \u0628\u062f\u0627\u0646\u06cc\u062f \u06a9\u0647 \u0686\u0647 \u06af\u0632\u06cc\u0646\u0647\u200c\u0647\u0627\u06cc\u06cc \u0628\u0631\u0627\u06cc \u0628\u0631\u0631\u0633\u06cc \u0645\u0634\u06a9\u0644\u0627\u062a \u0639\u0645\u0644\u06a9\u0631\u062f\u06cc \u067e\u0633\u062a\u06af\u0631\u0633 \u0648 \u0645\u0634\u062e\u0635 \u06a9\u0631\u062f\u0646 \u0627\u06cc\u0646 \u06a9\u0647 \u0631\u0648\u06cc \u0633\u0631\u0648\u0631 \u0686\u0647 \u0627\u062a\u0641\u0627\u0642\u06cc \u0645\u06cc\u200c\u0627\u0641\u062a\u062f \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f. \u067e\u06cc\u062f\u0627 \u06a9\u0631\u062f\u0646 \u0646\u0642\u0627\u0637 \u0636\u0639\u0641 \u0639\u0645\u0644\u06a9\u0631\u062f\u06cc \u0648 \u06a9\u0648\u0626\u0631\u06cc\u200c\u0647\u0627\u06cc \u06a9\u0646\u062f \u062f\u0642\u06cc\u0642\u0627 \u0647\u0645\u0627\u0646 \u0686\u06cc\u0632\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 \u0627\u06cc\u0646 \u067e\u0633\u062a \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645. \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0632\u06cc\u0627\u062f\u06cc \u0628\u0631\u0627\u06cc \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/getpancake.com\/fa\/postgresql\/\u062a\u0634\u062e\u06cc\u0635-\u06a9\u0648\u0626\u0631\u06cc-\u06a9\u0646\u062f-\u067e\u0633\u062a\u06af\u0631\u0633\/\" \/>\n<meta property=\"og:site_name\" content=\"\u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0627\u0628\u0631\u06cc \u067e\u0646\u06a9\u06cc\u06a9\" \/>\n<meta property=\"article:published_time\" content=\"2020-08-10T13:14:38+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-09-13T05:25:31+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/getpancake.com\/fa\/wp-content\/uploads\/2020\/08\/download.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1428\" \/>\n\t<meta property=\"og:image:height\" content=\"798\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"\u067e\u0646\u06a9\u06cc\u06a9\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@pancakedbaas\" \/>\n<meta name=\"twitter:site\" content=\"@pancakedbaas\" \/>\n<meta name=\"twitter:label1\" content=\"\u0646\u0648\u0634\u062a\u0647\u200c\u0634\u062f\u0647 \u0628\u062f\u0633\u062a\" \/>\n\t<meta name=\"twitter:data1\" 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