{"id":38232,"date":"2019-10-31T22:22:28","date_gmt":"2019-10-31T19:22:28","guid":{"rendered":"https:\/\/prohoster.info\/blog\/odin-iz-metodov-polucheniya-istorii-blokirovok-v-postgresql\/"},"modified":"2019-10-31T22:22:28","modified_gmt":"2019-10-31T19:22:28","slug":"odin-iz-metodov-polucheniya-istorii-blokirovok-v-postgresql","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/odin-iz-metodov-polucheniya-istorii-blokirovok-v-postgresql","title":{"rendered":"Jeden z met\u00f3d na z\u00edskanie hist\u00f3rie blokovania v PostgreSQL","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Pokra\u010dovanie \u010dl\u00e1nku &#171;<noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/467181\/\">Pok\u00fa\u0161am sa vytvori\u0165 anal\u00f3g ASH pre PostgreSQL <\/a><\/noindex>&#171;.<\/p>\n<p>V \u010dl\u00e1nku sa bude sk\u00fama\u0165 a ukazova\u0165 na konkr\u00e9tnych po\u017eiadavk\u00e1ch a pr\u00edkladoch \u2014 ak\u00e9 u\u017eito\u010dn\u00e9 inform\u00e1cie je mo\u017en\u00e9 z\u00edska\u0165 pomocou hist\u00f3rie zobrazenia pg_locks.<\/p>\n<blockquote><p>Upozornenie.<br \/>\nVzh\u013eadom na novos\u0165 t\u00e9my a nedokon\u010denie testovacieho obdobia m\u00f4\u017ee \u010dl\u00e1nok obsahova\u0165 chyby. Kritika a pripomienky s\u00fa v\u00edtan\u00e9 a o\u010dak\u00e1van\u00e9.<\/p><\/blockquote>\n<p><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h2>Vstupy<\/h2>\n<p><\/p>\n<h3>Hist\u00f3ria zobrazenia pg_locks<\/h3>\n<p>\n<b class=\"spoiler_title\">archive_locking<\/b><\/p>\n<pre><code class=\"pgsql\">CREATE TABLE archive_locking \n(       timepoint timestamp without time zone ,\n\tlocktype text ,\n\trelation oid ,\n\tmode text ,\n\ttid xid ,\n\tvtid text ,\n\tpid integer ,\n\tblocking_pids integer[] ,\n\tgranted boolean ,\n        queryid bigint \n);<\/code><\/pre>\n<p>\nV podstate, tabu\u013eka je anal\u00f3gom tabu\u013eky <b>archive_pg_stat_activity<\/b>, podrobnej\u0161ie op\u00edsanej tu \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/467277\/\">pg_stat_statements + pg_stat_activity + loq_query = pg_ash? <\/a><\/noindex> a tu \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/467181\/\">Pok\u00fas o vytvorenie anal\u00f3gu ASH pre PostgreSQL.<\/a><\/noindex><\/p>\n<p>Na vyplnenie st\u013apca <b>queryid<\/b> sa pou\u017e\u00edva funkcia <\/p>\n<p><b class=\"spoiler_title\">update_history_locking_by_queryid<\/b><\/p>\n<pre><code class=\"pgsql\">--update_history_locking_by_queryid.sql\nCREATE OR REPLACE FUNCTION update_history_locking_by_queryid() RETURNS boolean AS $$\nDECLARE\n  result boolean ;\n  current_minute double precision ; \n  \n  start_minute integer ;\n  finish_minute integer ;\n  \n  start_period timestamp without time zone ;\n  finish_period timestamp without time zone ;\n  \n  lock_rec record ; \n  endpoint_rec record ; \n  \n  current_hour_diff double precision ;\nBEGIN\n  RAISE NOTICE '***update_history_locking_by_queryid';\n  \n  result = TRUE ;\n  \n  current_minute = extract ( minute from now() );\n\n  SELECT * FROM endpoint WHERE is_need_monitoring\n  INTO endpoint_rec ;\n  \n  current_hour_diff = endpoint_rec.hour_diff ;\n  \n  IF current_minute &lt; 5 \n  THEN\n\tRAISE NOTICE &#039;Aktu\u00e1lny \u010das je menej ako 5 min\u00fat.&#039;;\n\t\n\tstart_period = date_trunc(&#039;hour&#039;,now()) + (current_hour_diff * interval &#039;1 hour&#039;);\n    finish_period = start_period - interval &#039;5 minute&#039; ;\n  ELSE \n    finish_minute =  extract ( minute from now() ) \/ 5 ;\n    start_minute =  finish_minute - 1 ;\n  \n    start_period = date_trunc(&#039;hour&#039;,now()) + interval &#039;1 minute&#039;*start_minute*5+(current_hour_diff * interval &#039;1 hour&#039;);\n    finish_period = date_trunc(&#039;hour&#039;,now()) + interval &#039;1 minute&#039;*finish_minute*5+(current_hour_diff * interval &#039;1 hour&#039;) ;\n    \n  END IF ;  \n  \n  RAISE NOTICE &#039;start_period = %&#039;, start_period;\n  RAISE NOTICE &#039;finish_period = %&#039;, finish_period;\n\n\tFOR lock_rec IN   \n\tWITH act_queryid AS\n\t (\n\t\tSELECT \n\t\t\t\tpid , \n\t\t\t\ttimepoint ,\n\t\t\t\tquery_start AS started ,\t\t\t\n\t\t\t\tMAX(timepoint) OVER (PARTITION BY pid ,\tquery_start   ) AS finished ,\t\t\t\n\t\t\t\tqueryid \n\t\tFROM \n\t\t\t\tactivity_hist.history_pg_stat_activity \t\t\t\n\t\tWHERE \t\t\t\n\t\t\t\ttimepoint BETWEEN start_period and \n\t\t\t\t\t\t\t\t  finish_period\n\t\tGROUP BY \n\t\t\t\tpid , \n\t\t\t\ttimepoint ,  \n\t\t\t\tquery_start ,\n\t\t\t\tqueryid \n\t ),\n\t lock_pids AS\n\t\t(\n\t\t\tSELECT\n\t\t\t\thl.pid , \n\t\t\t\thl.locktype  ,\n\t\t\t\thl.mode ,\n\t\t\t\thl.timepoint , \n\t\t\t\tMIN ( timepoint ) OVER (PARTITION BY pid , locktype  ,mode ) as started \n\t\t\tFROM \n\t\t\t\tactivity_hist.history_locking hl\n\t\t\tWHERE \n\t\t\t\thl.timepoint between start_period and \n\t\t\t\t\t\t\t\t     finish_period\n\t\t\tGROUP BY \n\t\t\t\thl.pid , \n\t\t\t\thl.locktype  ,\n\t\t\t\thl.mode ,\n\t\t\t\thl.timepoint \n\t\t)\n\tSELECT \n\t\tlp.pid , \n\t\tlp.locktype  ,\n\t\tlp.mode ,\n\t\tlp.timepoint ,     \n\t\taq.queryid \n\tFROM lock_pids \tlp LEFT OUTER JOIN act_queryid aq ON ( lp.pid = aq.pid AND lp.started BETWEEN aq.started AND aq.finished )\n\tWHERE aq.queryid IS NOT NULL \n\tGROUP BY  \n\t\tlp.pid , \n\t\tlp.locktype  ,\n\t\tlp.mode ,\n\t\tlp.timepoint , \n\t\taq.queryid\n\tLOOP\n\t\tUPDATE activity_hist.history_locking SET queryid = lock_rec.queryid \n\t\tWHERE pid = lock_rec.pid AND locktype = lock_rec.locktype AND mode = lock_rec.mode AND timepoint = lock_rec.timepoint ;\t\n\tEND LOOP;    \n  \n  RETURN result ;\nEND\n$$ LANGUAGE plpgsql;<\/code><\/pre>\n<p>\n<b>Vysvetlenie:<\/b> Hodnota st\u013apca queryid sa aktualizuje v tabu\u013eke history_locking, a potom pri vytv\u00e1ran\u00ed novej sekcie pre tabu\u013eku archive_locking bude hodnota ulo\u017een\u00e1 v historick\u00fdch hodnot\u00e1ch. <\/p>\n<h2>V\u00fdstupn\u00e9 \u00fadaje<\/h2>\n<p>\nCelkovo inform\u00e1cie o procesoch.<\/p>\n<h3>\u010cAKANIE NA Z\u00c1MKY POD\u013dA TYPOV Z\u00c1MKOV<\/h3>\n<p>\n<b class=\"spoiler_title\">Dotaz<\/b><\/p>\n<pre><code class=\"pgsql\">WITH\nt AS\n(\n\tSELECT \n\t\tlocktype  ,\n\t\tmode ,\n\t\tcount(*) as total \n\tFROM \n\t\tactivity_hist.archive_locking\n\tWHERE \n\t\ttimepoint between pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND pg_stat_history_end+(current_hour_diff * interval '1 hour') AND \n\t\tNOT granted\n\tGROUP BY \n\t\tlocktype  ,\n\t\tmode  \n)\nSELECT \n\tlocktype  ,\n\tmode ,\n\ttotal * interval '1 second' as duration\t\t\t\nFROM t \t\t\nORDER BY 3 DESC <\/code><\/pre>\n<p>\n<b class=\"spoiler_title\">Pr\u00edklad<\/b><\/p>\n<pre>| \u010cAK\u00c1NIE NA Z\u00c1MKY POD\u013dA TYPOV Z\u00c1MKOV\n+--------------------+------------------------------+--------------------\n|            locktype|                          mode|            duration\n+--------------------+------------------------------+--------------------\n|       transactionid|                     ShareLock|            19:39:26\n|               tuple|           AccessExclusiveLock|            00:03:35\n+--------------------+------------------------------+--------------------\n<\/pre>\n<p><\/p>\n<h3>OD\u010cITANIE Z\u00c1MKOV POD\u013dA TYPOV Z\u00c1MKOV<\/h3>\n<p>\n<b class=\"spoiler_title\">Dotaz<\/b><\/p>\n<pre><code class=\"pgsql\">S\nt AS\n(\n\tSELECT \n\t\tlocktype  ,\n\t\tmode ,\n\t\tcount(*) as total \n\tFROM \n\t\tactivity_hist.archive_locking\n\tWHERE \n\t\ttimepoint between pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND pg_stat_history_end+(current_hour_diff * interval '1 hour') AND \n\t\tgranted\n\tGROUP BY \n\t\tlocktype  ,\n\t\tmode  \n)\nSELECT \n\tlocktype  ,\n\tmode ,\n\ttotal * interval '1 second' as duration\t\t\t\nFROM t \t\t\nORDER BY 3 DESC <\/code><\/pre>\n<p>\n<b class=\"spoiler_title\">Pr\u00edklad<\/b><\/p>\n<pre>| OD\u010cITANIE Z\u00c1MKOV POD\u013dA TYPOV Z\u00c1MKOV\n+--------------------+------------------------------+--------------------\n|            locktype|                          mode|            duration\n+--------------------+------------------------------+--------------------\n|            relation|              RowExclusiveLock|            51:11:10\n|          virtualxid|                 ExclusiveLock|            48:10:43\n|       transactionid|                 ExclusiveLock|            44:24:53\n|            relation|               AccessShareLock|            20:06:13\n|               tuple|           AccessExclusiveLock|            17:58:47\n|               tuple|                 ExclusiveLock|            01:40:41\n|            relation|      ShareUpdateExclusiveLock|            00:26:41\n|              object|              RowExclusiveLock|            00:00:01\n|       transactionid|                     ShareLock|            00:00:01\n|              extend|                 ExclusiveLock|            00:00:01\n+--------------------+------------------------------+--------------------\n<\/pre>\n<p>\nPodrobn\u00e9 inform\u00e1cie k vybran\u00fdm queryid dopytom<\/p>\n<h3>\u010cAK\u00c1NIE NA Z\u00c1MKY POD\u013dA TYPOV Z\u00c1MKOV POD\u013dA QUERYID<\/h3>\n<p>\n<b class=\"spoiler_title\">Dotaz<\/b><\/p>\n<pre><code class=\"pgsql\">S\nlt AS\n(\n\tSELECT\n\t\tpid , \n\t\tlocktype  ,\n\t\tmode ,\n\t\ttimepoint , \n\t\tqueryid , \n\t\tblocking_pids ,\n                MIN ( timepoint ) OVER (PARTITION BY pid , locktype  ,mode ) as started  \n\tFROM \n\t\tactivity_hist.archive_locking\n\tWHERE \n\t\ttimepoint between pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND \n\t\t\t                  pg_stat_history_end+(current_hour_diff * interval '1 hour') AND \n\t\tNOT granted AND\n\t       queryid IS NOT NULL \n\tGROUP BY \n\t        pid , \n\t\tlocktype  ,\n\t\tmode ,\n\t\ttimepoint ,\n\t\tqueryid ,\n\t\tblocking_pids \n)\nSELECT \n        lt.pid , \n\tlt.locktype  ,\n\tlt.mode ,\t\t\t\n        lt.started ,\n\tlt.queryid  ,\n\tlt.blocking_pids ,\n\tCOUNT(*)  * interval '1 second'\t as duration\t\t\nFROM lt \t\nGROUP BY \n\tlt.pid , \n        lt.locktype  ,\n\tlt.mode ,\t\t\t\n        lt.started ,\n        lt.queryid ,\n\tlt.blocking_pids \nORDER BY 4<\/code><\/pre>\n<p>\n<b class=\"spoiler_title\">Pr\u00edklad<\/b><\/p>\n<pre>| \u010cAKANIE NA Z\u00c1MKY POD\u013dA TYP\u016e Z\u00c1MKOV POD\u013dA QUERYID\n+----------+-------------------------+--------------------+------------------------------+--------------------+--------------------+--------------------\n|       pid|                 typ_z\u00e1mku|                m\u00f3d|                       za\u010diatok|             queryid|       blokuj\u00face_pids|            trvanie\n+----------+-------------------------+--------------------+------------------------------+--------------------+--------------------+--------------------\n|     11288|            transactionid|           ShareLock|    2019-09-17 10:00:00.302936|  389015618226997618|             {11092}|            00:03:34\n|     11626|            transactionid|           ShareLock|    2019-09-17 10:00:21.380921|  389015618226997618|             {12380}|            00:00:29\n|     11626|            transactionid|           ShareLock|    2019-09-17 10:00:21.380921|  389015618226997618|             {11092}|            00:03:25\n|     11626|            transactionid|           ShareLock|    2019-09-17 10:00:21.380921|  389015618226997618|             {12213}|            00:01:55\n|     11626|            transactionid|           ShareLock|    2019-09-17 10:00:21.380921|  389015618226997618|             {12751}|            00:00:01\n|     11629|            transactionid|           ShareLock|    2019-09-17 10:00:24.331935|  389015618226997618|             {11092}|            00:03:22\n|     11629|            transactionid|           ShareLock|    2019-09-17 10:00:24.331935|  389015618226997618|             {12007}|            00:00:01\n|     12007|            transactionid|           ShareLock|    2019-09-17 10:05:03.327933|  389015618226997618|             {11629}|            00:00:13\n|     12007|            transactionid|           ShareLock|    2019-09-17 10:05:03.327933|  389015618226997618|             {11092}|            00:01:10\n|     12007|            transactionid|           ShareLock|    2019-09-17 10:05:03.327933|  389015618226997618|             {11288}|            00:00:05\n|     12213|            transactionid|           ShareLock|    2019-09-17 10:06:07.328019|  389015618226997618|             {12007}|            00:00:10<\/pre>\n<p><\/p>\n<h3>ZABERANIE Z\u00c1MKOV POD\u013dA TYP\u016e Z\u00c1MKOV POD\u013dA QUERYID<\/h3>\n<p>\n<b class=\"spoiler_title\">Dotaz<\/b><\/p>\n<pre><code class=\"pgsql\">S\nlt AS\n(\n\tSELECT\n\t\tpid , \n\t\ttyp_z\u00e1mku ,\n\t\tm\u00f3d ,\n\t\ttimepoint , \n\t\tqueryid , \n\t\tblokuj\u00face_pids ,\n                MIN ( timepoint ) OVER (PARTITION BY pid , typ_z\u00e1mku ,m\u00f3d ) as za\u010diatok  \n\tFROM \n\t\tactivity_hist.archive_locking\n\tWHERE \n\t\ttimepoint between pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND \n\t\t\t                  pg_stat_history_end+(current_hour_diff * interval '1 hour') AND \n\t\tgranted AND\n\t\tqueryid IS NOT NULL \n\tGROUP BY \n\t        pid , \n\t\ttyp_z\u00e1mku ,\n\t\tm\u00f3d ,\n\t\ttimepoint ,\n\t\tqueryid ,\n\t\tblokuj\u00face_pids \n)\nSELECT \n        lt.pid , \n\tlt.typ_z\u00e1mku ,\n\tlt.m\u00f3d ,\t\t\t\n        lt.za\u010diatok ,\n\tlt.queryid ,\n\tlt.blokuj\u00face_pids ,\n\tCOUNT(*)  * interval '1 second'\t as trvanie\t\t\t\nFROM lt \t\nGROUP BY \n\tlt.pid , \n\tlt.typ_z\u00e1mku ,\n\tlt.m\u00f3d ,\t\t\t\n        lt.za\u010diatok ,\n\tlt.queryid ,\n\tlt.blokuj\u00face_pids \nORDER BY 4<\/code><\/pre>\n<p>\n<b class=\"spoiler_title\">Pr\u00edklad<\/b><\/p>\n<pre>| Z\u00c1ZNAKY BLOK\u00c1D POD\u013dA TYPOV BLOK\u00c1D POD\u013dA QUERYID\n+----------+-------------------------+--------------------+------------------------------+--------------------+--------------------+--------------------\n|       pid|                 locktype|                mode|                       started|             queryid|       blocking_pids|            duration\n+----------+-------------------------+--------------------+------------------------------+--------------------+--------------------+--------------------\n|     11288|                 relation|    RowExclusiveLock|    2019-09-17 10:00:00.302936|  389015618226997618|             {11092}|            00:03:34\n|     11092|            transactionid|       ExclusiveLock|    2019-09-17 10:00:00.302936|  389015618226997618|                  {}|            00:03:34\n|     11288|                 relation|    RowExclusiveLock|    2019-09-17 10:00:00.302936|  389015618226997618|                  {}|            00:00:10\n|     11092|                 relation|    RowExclusiveLock|    2019-09-17 10:00:00.302936|  389015618226997618|                  {}|            00:03:34\n|     11092|               virtualxid|       ExclusiveLock|    2019-09-17 10:00:00.302936|  389015618226997618|                  {}|            00:03:34\n|     11288|               virtualxid|       ExclusiveLock|    2019-09-17 10:00:00.302936|  389015618226997618|             {11092}|            00:03:34\n|     11288|            transactionid|       ExclusiveLock|    2019-09-17 10:00:00.302936|  389015618226997618|             {11092}|            00:03:34\n|     11288|                    tuple| AccessExclusiveLock|    2019-09-17 10:00:00.302936|  389015618226997618|             {11092}|            00:03:34<\/pre>\n<p>\n<b>Pou\u017eitie hist\u00f3rie blok\u00e1d pri anal\u00fdze incidentov v\u00fdkonnosti.<\/b><\/p>\n<ol>\n<li>Proces s pid=11288, vykon\u00e1vaj\u00faci \u017eiados\u0165 s queryid=389015618226997618, \u010dakal na blok\u00e1ciu od 2019-09-17 10:00:00 po\u010das 3 min\u00fat.<\/li>\n<li>Blok\u00e1ciu dr\u017eal proces s pid=11092.<\/li>\n<li>Proces s pid=11092, vykon\u00e1vaj\u00faci \u017eiados\u0165 s queryid=389015618226997618, dr\u017eal blok\u00e1ciu od 2019-09-17 10:00:00 po\u010das 3 min\u00fat.<\/li>\n<\/ol>\n<p><\/p>\n<h2>Z\u00e1ver<\/h2>\n<p>\nTeraz, d\u00fafam, za\u010dne to najzauj\u00edmavej\u0161ie a naju\u017eito\u010dnej\u0161ie - zbieranie \u0161tatistiky a anal\u00fdza pr\u00edpadov z hist\u00f3rie o\u010dak\u00e1van\u00ed a blok\u00e1d. <\/p>\n<p>V bud\u00facnosti, d\u00fafajme, sa podar\u00ed z\u00edska\u0165 nie\u010do ako pozn\u00e1mky (podobne ako s metalinkou Oracle).<\/p>\n<p>V podstate, presne z tohto d\u00f4vodu sa pou\u017e\u00edvan\u00e1 metodika maxim\u00e1lne r\u00fdchlo spr\u00edstupn\u00ed na verejn\u00e9 zozn\u00e1menie.<\/p>\n<p>V najbli\u017e\u0161om \u010dase sa pok\u00fasim zverejni\u0165 projekt na GitHub.<br \/>\n<br \/>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/467719\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u043e\u0434\u043e\u043b\u0436\u0435\u043d\u0438\u0435 \u0441\u0442\u0430\u0442\u044c\u0438 &#171;\u041f\u043e\u043f\u044b\u0442\u043a\u0430 \u0441\u043e\u0437\u0434\u0430\u0442\u044c \u0430\u043d\u0430\u043b\u043e\u0433 ASH \u0434\u043b\u044f PostgreSQL &#171;. \u0412 \u0441\u0442\u0430\u0442\u044c\u0435 \u0431\u0443\u0434\u0435\u0442 \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u043d\u043e \u0438 \u043f\u043e\u043a\u0430\u0437\u0430\u043d\u043e \u043d\u0430 \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u044b\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u0430\u0445 \u0438 \u043f\u0440\u0438\u043c\u0435\u0440\u0430\u0445 \u2014 \u043a\u0430\u043a\u0443\u044e \u0436\u0435 \u043f\u043e\u043b\u0435\u0437\u043d\u0443\u044e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044e \u043c\u043e\u0436\u043d\u043e \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u0438\u0441\u0442\u043e\u0440\u0438\u0438 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u044f pg_locks. \u041f\u0440\u0435\u0434\u0443\u043f\u0440\u0435\u0436\u0434\u0435\u043d\u0438\u0435. \u0412 \u0441\u0432\u044f\u0437\u0438 \u0441 \u043d\u043e\u0432\u0438\u0437\u043d\u043e\u0439 \u0442\u0435\u043c\u044b \u0438 \u043d\u0435\u0437\u0430\u0432\u0435\u0440\u0448\u0435\u043d\u0438\u0435\u043c \u043f\u0435\u0440\u0438\u043e\u0434\u0430 \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f, \u0441\u0442\u0430\u0442\u044c\u044f \u043c\u043e\u0436\u0435\u0442 \u0441\u043e\u0434\u0435\u0440\u0436\u0430\u0442\u044c \u043e\u0448\u0438\u0431\u043a\u0438. \u041a\u0440\u0438\u0442\u0438\u043a\u0430 \u0438 \u0437\u0430\u043c\u0435\u0447\u0430\u043d\u0438\u044f \u0432\u0441\u044f\u0447\u0435\u0441\u043a\u0438 \u043f\u0440\u0438\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0442\u0441\u044f \u0438 \u043e\u0436\u0438\u0434\u0430\u044e\u0442\u0441\u044f. \u0412\u0445\u043e\u0434\u043d\u044b\u0435 \u0434\u0430\u043d\u043d\u044b\u0435 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-38232","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u0440\u043e\u0434\u043e\u043b\u0436\u0435\u043d\u0438\u0435 \u0441\u0442\u0430\u0442\u044c\u0438 &quot;\u041f\u043e\u043f\u044b\u0442\u043a\u0430 \u0441\u043e\u0437\u0434\u0430\u0442\u044c \u0430\u043d\u0430\u043b\u043e\u0433 ASH \u0434\u043b\u044f PostgreSQL &quot;. \u0412 \u0441\u0442\u0430\u0442\u044c\u0435 \u0431\u0443\u0434\u0435\u0442 \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u043d\u043e \u0438 \u043f\u043e\u043a\u0430\u0437\u0430\u043d\u043e \u043d\u0430 \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u044b\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u0430\u0445 \u0438.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/odin-iz-metodov-polucheniya-istorii-blokirovok-v-postgresql\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.4\" \/>\n\t\t<meta property=\"og:locale\" content=\"sk_SK\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u041e\u0434\u0438\u043d \u0438\u0437 \u043c\u0435\u0442\u043e\u0434\u043e\u0432 \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u0438\u0441\u0442\u043e\u0440\u0438\u0438 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043e\u043a \u0432 PostgreSQL | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u041f\u0440\u043e\u0434\u043e\u043b\u0436\u0435\u043d\u0438\u0435 \u0441\u0442\u0430\u0442\u044c\u0438 &quot;\u041f\u043e\u043f\u044b\u0442\u043a\u0430 \u0441\u043e\u0437\u0434\u0430\u0442\u044c \u0430\u043d\u0430\u043b\u043e\u0433 ASH \u0434\u043b\u044f PostgreSQL &quot;. \u0412 \u0441\u0442\u0430\u0442\u044c\u0435 \u0431\u0443\u0434\u0435\u0442 \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u043d\u043e \u0438 \u043f\u043e\u043a\u0430\u0437\u0430\u043d\u043e \u043d\u0430 \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u044b\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u0430\u0445 \u0438.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/odin-iz-metodov-polucheniya-istorii-blokirovok-v-postgresql\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2019-10-31T19:22:28+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2019-10-31T19:22:28+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Jeden z met\u00f3d z\u00edskania hist\u00f3rie blok\u00e1d v PostgreSQL | ProHoster","description":"Pokra\u010dovanie \u010dl\u00e1nku \"Pok\u00fas o vytvorenie anal\u00f3gu ASH pre PostgreSQL\". V \u010dl\u00e1nku sa bud\u00fa sk\u00fama\u0165 a ukazova\u0165 konkr\u00e9tne po\u017eiadavky.","canonical_url":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/odin-iz-metodov-polucheniya-istorii-blokirovok-v-postgresql","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sk_SK","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041e\u0434\u0438\u043d \u0438\u0437 \u043c\u0435\u0442\u043e\u0434\u043e\u0432 \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u0438\u0441\u0442\u043e\u0440\u0438\u0438 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043e\u043a \u0432 PostgreSQL | ProHoster","og:description":"\u041f\u0440\u043e\u0434\u043e\u043b\u0436\u0435\u043d\u0438\u0435 \u0441\u0442\u0430\u0442\u044c\u0438 &quot;\u041f\u043e\u043f\u044b\u0442\u043a\u0430 \u0441\u043e\u0437\u0434\u0430\u0442\u044c \u0430\u043d\u0430\u043b\u043e\u0433 ASH \u0434\u043b\u044f PostgreSQL &quot;. \u0412 \u0441\u0442\u0430\u0442\u044c\u0435 \u0431\u0443\u0434\u0435\u0442 \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u043d\u043e \u0438 \u043f\u043e\u043a\u0430\u0437\u0430\u043d\u043e \u043d\u0430 \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u044b\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u0430\u0445 \u0438.","og:url":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/odin-iz-metodov-polucheniya-istorii-blokirovok-v-postgresql","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2019-10-31T19:22:28+00:00","article:modified_time":"2019-10-31T19:22:28+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"38232","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":"2026-01-23 21:03:19","breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-03-01 01:13:22","updated":"2026-01-23 21:03:19","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/38232","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/comments?post=38232"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/38232\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/media?parent=38232"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/categories?post=38232"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/tags?post=38232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}