Our DB server suffers from high DB queries. Primarily responsible are queries that contain article fields. What can we do to optimise them? In which direction should we search?
SELECT `article`.`id` AS `article.id`
FROM `jsmwh_content` AS `article`
LEFT JOIN `jsmwh_fields` AS `field-sendedatum` ON `field-sendedatum`.`name` = 'sendedatum' AND `field-sendedatum`.`state` = 1 AND `field-sendedatum`.`context` = 'com_content.article'
LEFT JOIN `jsmwh_fields_values` AS `field_value-sendedatum` ON `field_value-sendedatum`.`field_id` = `field-sendedatum`.`id` AND `field_value-sendedatum`.`item_id` = article.id
WHERE `article`.`id` IN (5,7,9,10,11,19,21,22,23,24,25,27,28,29,30,31,32,34,36,42,43,76,84,85,87,88,98,100,102,104,105,106,107,108,110,111,112,113,114,116,117,119,120,121,122,126,127,128,129,130,131,133,134,135,136,138,139,140,141,143,144,145,146,147,148,149,150,192,193,194,195,196,197,198,200,201,203,204,205,206,207,208,209,213,214,215,216,222,224,225,227,228,235,236,255,257,258,298,300,306,307,310,311,312,313,315,316,317,318,319,320,326,327,361,362,371,374,375,378,383,385,386,391,401,403,404,408,413,414,415,416,417,420,421,425,428,437,448,451,457,462,469,470,471,472,475,476,477,478,479,480,481,483,485,486,487,491,493,509,510,516,518,523,524,527,530,549,550,551,553,554,555,556,557,558,559,560,561,562,563,564,565,566,567,568,569,570,571,573,574,575,579,580,581,583,584,585,586,587,588,590,592,597,604,605,607,614,620,621,625,627,628,629,630,631,632,634,638,645,651,656,662,665,670,672,675,676,677,678,680,687,693,699,700,701,704,705,706,707,720,724,727,728,729,730,731,734,735,736,737,738,741,742,743,744,745,746,747,748,749,750,751,752,753,754,755,756,757,758,759,760,761,762,763,764,765,766,767,768,770,772,774,776,784,786,794,829,832,834,835,837,841,845,846,848,854,855,858,859,864,867,871,876,880,882,883,886,887,890,891,892,899,905,909,911,913,914,915,917,918,920,921,922,923,924,925,927,928,929,930,931,934,935,936,937,938,941,943,944,946,947,948,949,950,952,953,954,955,956,957,959,960,961,962,963,964,965,966,967,968,969,970,971,972,973,974,976,984,992,997,999,1007,1013,1016,1017,1019,1021,1022,1024,1026,1029,1030,1031,1032,1033,1034,1035,1036,1037,1038,1039,1040,1042,1049,1051,1052,1053,1054,1055,1062,1063,1064,1065,1066,1067,1068,1069,1070,1071,1072,1073,1074,1075,1076,1077,1080,1089,1092,1094,1095,1096,1105,1107,1118,1121,1122,1126,1127,1128,1131,1132,1133,1134,1135,1136,1137,1138,1139,1142,1146,1152,1153,1155,1156,1157,1158,1159,1160,1162,1164,1165,1168,1169,1170,1172,1173,1174,1175,1176,1186,1191,1194,1195,1196,1197,1200,1201,1202,1203,1204,1208,1209,1210,1211,1214,1215,1216,1217,1218,1221,1222,1223,1224,1225,1226,1227,1228,1229,1231,1232,1233,1235,1237,1238,1239,1240,1308,1311,1315,1320,1321,1322,1324,1326,1328,1331,1337,1342,1345,1348,1349,1354,1355,1356,1357,1358,1359,1360,1361,1362,1363,1364,1365,1366,1367,1368,1370,1379,1382,1383,1385,1386,1387,1388,1389,1390,1391,1393,1395,1396,1397,1398,1399,1400,1401,1402,1403,1404,1405,1406,1407,1408,1409,1410,1411,1412,1413,1414,1415,1416,1417,1420,1437,1438,1440,1441,1442,1443,1444,1445,1446,1447,1448,1449,1450,1451,1454,1458,1465,1466,1467,1469,1509,1511,1512,1513,1514,1515,1516,1546,1547,1549,1560,1561,1564,1565,1568,1569,1570,1571,1572,1574,1575,1576,1577,1578,1579,1581,1585,1586,1587,1588,1589,1590,1591,1592,1593,1594,1595,1615,1616,1618,1619,1623,1633,1634,1635,1636,1637,1638,1639,1641,1642,1643,1646,1647,1648,1649,1650,1669,1670,1671,1672,1673,1674,1680,1681,1682,1683,1684,1685,1686,1687,1688,1689,1690,1691,1692,1693,1694,1695,1696,1697,1698,1699,1700,1701,1702,1703,1704,1705,1706,1707,1708,1709,1710,1711,1712,1713,1714,1715,1716,1717,1718,1720,1721,1766,1767,1768,1769,1770,1771,1772,1774,1775,1778,1785,1791,1792,1794,1795,1796,1797,1798,1799,1800,1801,1802,1803,1804,1805,1808,1810,1827,1828,1829,1830,1831,1832,1833,1834,1835,1836,1837,1838,1839,1840,1841,1842,1843,1844,1845,1846,1847,1848,1849,1850,1851,1852,1853,1854,1855,1856,1857,1860,1861,1862,1863,1864,1865,1866,1867,1868,1869,1870,1871,1872,1873,1874,1884,1913,1925,1926,1927,1928,1929,1930,1931,1932,1933,1934,1935,1936,1937,1941,1942,1943,1946,1951,1967,1971,1972,1973,1974,1975,1976,1977,1978,2006,2007,2008,2009,2010,2028,2031,2035,2038,2039,2040,2041,2042,2043,2044,2045,2046,2047,2048,2049,2050,2051,2052,2053,2054,2055,2056,2064,2067,2068,2069,2070,2071,2074,2075,2076,2077,2078,2079,2080,2081,2082,2083,2084,2085,2086,2087,2088,2089,2090,2091,2093,2095,2096,2097,2098,2099,2100,2101,2102,2117,2120,2121,2122,2171,2172,2174,2175,2176,2177,2178,2179,2180,2181,2182,2183,2184,2185,2186,2187,2188,2189,2190,2191,2192,2193,2197,2198,2199,2200,2201,2202,2203,2204,2205,2206,2207,2208,2209,2210,2211,2212,2213,2234,2235,2236,2237,2238,2239,2240,2255,2256,2257,2258,2259,2260,2261,2262,2263,2264,2265,2266,2267,2268,2269,2270,2271,2272,2273,2274,2275,2280,2281,2282,2283,2284,2285,2286,2287,2288,2289,2290,2291,2292,2293,2294,2296,2297,2298,2300,2312,2313,2314,2315,2316,2317,2318,2319,2320,2321,2322,2323,2324,2325,2326,2327,2328,2329,2330,2331,2332,2333,2334,2335,2336,2337,2350,2354,2356,2357,2371,2375,2376,2377,2378,2379,2380,2392,2393,2394,2395,2396,2397,2398,2399,2401,2402,2403,2404,2405,2406,2407,2408,2409,2410,2411,2412,2413,2414,2415,2416,2417,2418,2419,2420,2421,2422,2426,2465,2466,2467,2468,2469,2470,2471,2472,2473,2489,2490,2503,2504,2505,2506,2507,2508,2509,2510,2511,2512,2513,2514,2515,2516,2517,2519,2520,2521,2522,2523,2524,2525,2526,2527,2528,2529,2530,2531,2532,2533,2534,2535,2536,2537,2538,2539,2540,2541,2542,2543,2544,2545,2546,2547,2548,2549,2550,2551,2552,2553,2554,2555,2556,2557,2558,2559,2560,2561,2562,2632,2633,2634,2635,2636,2637,2638,2639,2641,2642,2643,2644,2645,2646,2647,2648,2649,2650,2651,2653,2654,2655,2656,2657,2658,2659,2660,2661,2662,2663,2664,2665,2666,2667,2668,2669,2670,2672,2673,2674,2675,2676,2677,2678,2679,2680,2682,2683,2684,2685,2686,2687,2688,2689,2690,2691,2692,2693,2694,2695,2696,2697,2698,2699,2700,2701,2702,2703,2704,2705,2706,2707,2708,2709,2710,2711,2712,2713,2714,2715,2716,2717,2718,2719,2720,2721,2722,2723,2724,2725,2726,2727,2728,2729,2730,2731,2732,2733,2734,2735,2736,2739,2740,2741,2742,2743,2744,2745,2746,2747,2748,2749,2750,2751,2752,2754,2755,2756,2757,2758,2759,2760,2761,2762,2763,2764,2765,2766,2767,2770,2771,2772,2773,2774,2775,2778,2779,2780,2781,2782,2783,2784,2785,2786,2787,2788,2789,2790,2791,2792,2793,2794,2795,2796,2797,2798,2799,2800,2801,2802,2803,2807,2828,2852,2867,2868,2872,2874,2910,2911,2912,2913,2920,2928,2929,2930,2932,2933,2934,2935,2936,2937,2939,2940,2941,2942,2943,2946,2984,2985,2986,2989,2990,2998,2999,3002,3003,3006,3007,3010,3011,3012,3015,3016,3019,3020,3023,3027,3028,3029,3032,3033,3034,3037,3038,3039,3042,3043,3044,3080,3096,3097,3098,3101,3102,3103,3106,3107,3111,3112,3116,3117,3121,3122,3123,3128,3130,3131,3134,3135,3136,3137,3138,3156,3157,3158,3159,3160,3161,3162,3163,3164,3165,3166,3167) AND (`field_value-sendedatum`.`value` >= '2023-07-22 00:00:00' AND `field_value-sendedatum`.`value` < '2023-07-23 00:00:00') | 0.000 |
SELECT `article`.`id` AS `article.id`
FROM `jsmwh_content` AS `article`
LEFT JOIN `jsmwh_fields` AS `field-sendedatum` ON `field-sendedatum`.`name` = 'sendedatum' AND `field-sendedatum`.`state` = 1 AND `field-sendedatum`.`context` = 'com_content.article'
LEFT JOIN `jsmwh_fields_values` AS `field_value-sendedatum` ON `field_value-sendedatum`.`field_id` = `field-sendedatum`.`id` AND `field_value-sendedatum`.`item_id` = article.id
WHERE `article`.`id` IN (102,105,106,107,108,111,113,117,120,122,127,129,131,134,138,140,143,145,147,150,192,194,197,200,203,205,207,214,215,216,235,236,255,315,317,318,319,320,383,413,414,415,416,417,420,470,471,475,476,477,478,579,580,581,583,584,585,586,587,588,627,628,629,631,632,634,675,676,677,700,701,704,705,706,707,727,728,729,730,731,734,735,736,737,738,741,742,743,744,745,746,911,913,914,915,917,918,920,921,922,923,924,925,927,928,929,930,931,934,935,936,937,938,941,999,1146,1194,1195,1196,1197,1200,1201,1202,1203,1204,1208,1209,1210,1211,1214,1215,1216,1217,1218,1221,1222,1223,1224,1225,1226,1227,1228,1229,1345,1438,1440,1441,1442,1443,1444,1445,1446,1447,1448,1449,1450,1451,1564,1568,1569,1570,1571,1572,1574,1575,1576,1577,1578,1579,1669,1670,1671,1672,1673,1674,1767,1768,1769,1770,1771,1772,1774,1775,1791,1792,1794,1795,1796,1797,1798,1799,1800,1810,1925,1926,1927,1928,1929,1930,1931,1932,1933,1934,1935,1936,1937,2006,2007,2008,2009,2010,2067,2068,2069,2070,2071,2074,2075,2076,2077,2078,2079,2080,2172,2177,2178,2179,2180,2181,2182,2234,2235,2236,2237,2238,2239,2260,2261,2262,2263,2264,2265,2312,2313,2314,2315,2316,2317,2318,2319,2320,2321,2322,2323,2324,2325,2326,2327,2328,2329,2465,2466,2467,2468,2469,2470,2503,2504,2505,2506,2507,2508,2509,2641,2642,2643,2644,2645,2646,2647,2648,2649,2650,2651,2653,2654,2655,2656,2657,2658,2659,2660,2661,2662,2663,2664,2665,2666,2667,2668,2669,2670,2672,2673,2674,2675,2676,2677,2678,2679,2680,2928,2929,2930,2932,2933,2934,2935,2936,2937,2939,2940,2941,2942,2943,2946,3128,3131,3134,3135,3136,3137,3138,3156,3157,3158,3159,3160,3161,3162,3163,3164,3165,3166,3167) AND article.catid NOT IN (8,12,13,16,28,42,43,50,51,52,53,54,55,56,57,58,60,61,62,65,70,78,85,86,87,88,89,90,94,96,97,98,106,108,111,112,113,115,143,145,146,147,148,149,150,151,152,153,154,155,161,162,163,164,165,168,175,180,192)
ORDER BY `field_value-sendedatum`.`value` IS NULL, CAST(`field_value-sendedatum`.`value` AS CHAR(1)) = '', CAST(`field_value-sendedatum`.`value` AS CHAR(10)) = '0000-00-00', CAST(`field_value-sendedatum`.`value` AS SIGNED) DESC, `field_value-sendedatum`.`value` DESC LIMIT 6