使用PostgreSQL创建类别树继承权
如何从Magento数据创建类别级层次结构树。这是类别的示例数据，第一列“Cat_id”将是唯一的，如果Cat_id与lvl_1、lvl_2、lvl_3相同 然后是超级家长ie 1级 如果等级1的cat_id不同，等级2、等级3的cat_id相同，则为等级2 （使用PostgreSQL版本11） 所以我想要下面这样的东西，尝试了很多东西，但无法得到这个输出，如果有人能在这方面指导我，这将是非常有帮助的 或者我们可以用任何其他方式显示这个层次结构使用PostgreSQL创建类别树继承权,postgresql,Postgresql,如何从Magento数据创建类别级层次结构树。这是类别的示例数据，第一列“Cat_id”将是唯一的，如果Cat_id与lvl_1、lvl_2、lvl_3相同 然后是超级家长ie 1级 如果等级1的cat_id不同，等级2、等级3的cat_id相同，则为等级2 （使用PostgreSQL版本11） 所以我想要下面这样的东西，尝试了很多东西，但无法得到这个输出，如果有人能在这方面指导我，这将是非常有帮助的 或者我们可以用任何其他方式显示这个层次结构 **Expected Output:** Cat_
**Expected Output:**
Cat_id Cat Tree
"1111" "1111" - lvl 1
"1113" "1113" - lvl2
"1119" "1119" - lvl 3
"1120" "1120"
"1121" "1121"
"1181" "1181" -lvl 2
"1183" "1183" -lvl 3
"1182" "1182"
Cat_id. lvl_1 lvl_2. lvl_3
1111 "1111" "1111" "1111"
1113 "1111" "1113" "1113"
1119 "1111" "1113" "1119"
1120 "1111" "1113" "1120"
1121 "1111" "1113" "1121"
1122 "1111" "1113" "1122"
1188 "1111" "1113" "1188"
1181 "1111" "1181" "1181"
1183 "1111" "1181" "1183"
1182 "1111" "1182" "1182"
1184 "1111" "1182" "1184"
2479 "1111" "2479" "2479"
2482 "1111" "2482" "2482"
2493 "1111" "2493" "2493"
2499 "1111" "2499" "2499"
2500 "1111" "2500" "2500"
2501 "1111" "2501" "2501"
2509 "1111" "2509" "2509"
2511 "1111" "2511" "2511"
2512 "1111" "2512" "2512"
2513 "1111" "2513" "2513"
2514 "1111" "2513" "2514"
2515 "1111" "2515" "2515"
2516 "1111" "2515" "2516"
2518 "1111" "2515" "2518"
2519 "1111" "2515" "2519"
2517 "1111" "2517" "2517"
2520 "1111" "2520" "2520"
2521 "1111" "2520" "2521"
2522 "1111" "2520" "2522"
2523 "1111" "2523" "2523"
2524 "1111" "2524" "2524"
2498 "1111" "2525" "2498"
2502 "1111" "2525" "2502"
2503 "1111" "2525" "2503"
2504 "1111" "2525" "2504"
2505 "1111" "2525" "2505"
2506 "1111" "2525" "2506"
2507 "1111" "2525" "2507"
2508 "1111" "2525" "2508"
2525 "1111" "2525" "2525"
2526 "1111" "2525" "2526"
2527 "1111" "2527" "2527"
2528 "1111" "2528" "2528"
2531 "1111" "2531" "2531"
2532 "1111" "2532" "2532"
2538 "1111" "2538" "2538"
2539 "1111" "2539" "2539"
2540 "1111" "2540" "2540"
2590 "1111" "2540" "2590"
2591 "1111" "2540" "2591"
2543 "1111" "2543" "2543"
2545 "1111" "2545" "2545"
2638 "1111" "2545" "2638"
2639 "1111" "2545" "2639"
2649 "1111" "2545" "2649"
2650 "1111" "2545" "2650"
2546 "1111" "2546" "2546"
2547 "1111" "2547" "2547"
2548 "1111" "2548" "2548"
2549 "1111" "2549" "2549"
2550 "1111" "2550" "2550"
2551 "1111" "2551" "2551"
2604 "1111" "2551" "2604"
2552 "1111" "2552" "2552"
2553 "1111" "2552" "2553"
2554 "1111" "2552" "2554"
2555 "1111" "2552" "2555"
2556 "1111" "2556" "2556"
2557 "1111" "2557" "2557"
2558 "1111" "2557" "2558"
2559 "1111" "2557" "2559"
2560 "1111" "2557" "2560"
2562 "1111" "2557" "2562"
2568 "1111" "2568" "2568"
2537 "1111" "2569" "2537"
2544 "1111" "2569" "2544"
2569 "1111" "2569" "2569"
2570 "1111" "2569" "2570"
2571 "1111" "2569" "2571"
2572 "1111" "2569" "2572"
2573 "1111" "2573" "2573"
2574 "1111" "2574" "2574"
2575 "1111" "2575" "2575"
2576 "1111" "2576" "2576"
2578 "1111" "2578" "2578"
2579 "1111" "2579" "2579"
2580 "1111" "2580" "2580"
2581 "1111" "2581" "2581"
2582 "1111" "2582" "2582"
2583 "1111" "2583" "2583"
2584 "1111" "2584" "2584"
2585 "1111" "2584" "2585"
2586 "1111" "2584" "2586"
2587 "1111" "2584" "2587"
2588 "1111" "2584" "2588"
2589 "1111" "2589" "2589"
2592 "1111" "2592" "2592"
2593 "1111" "2593" "2593"
2651 "1111" "2593" "2651"
2598 "1111" "2598" "2598"
2600 "1111" "2600" "2600"
2601 "1111" "2601" "2601"
2602 "1111" "2602" "2602"
2603 "1111" "2603" "2603"
2644 "1111" "2644" "2644"
2645 "1111" "2645" "2645"
2646 "1111" "2646" "2646"
2647 "1111" "2647" "2647"
2648 "1111" "2648" "2648"
3310 "1111" "3310" "3310"
3321 "1111" "3321" "3321"
3322 "1111" "3322" "3322"
3323 "1111" "3323" "3323"
3324 "1111" "3324" "3324"
3829 "1111" "3829" "3829"
3878 "1111" "3878" "3878"
3879 "1111" "3878" "3879"
3320 "1111" "3880" "3320"
3325 "1111" "3880" "3325"
3326 "1111" "3880" "3326"
3327 "1111" "3880" "3327"
3596 "1111" "3880" "3596"
3598 "1111" "3880" "3598"
3880 "1111" "3880" "3880"
2143 "2143" "2143" "2143"
2145 "2143" "2145" "2145"
2153 "2143" "2145" "2153"
2963 "2143" "2145" "2153"
2158 "2143" "2145" "2158"
2193 "2143" "2145" "2158"
2195 "2143" "2145" "2158"
2197 "2143" "2145" "2158"
2198 "2143" "2145" "2158"
2201 "2143" "2145" "2158"
2159 "2143" "2145" "2159"
2160 "2143" "2145" "2160"
2298 "2143" "2145" "2298"
2303 "2143" "2145" "2298"
2300 "2143" "2145" "2300"
2878 "2143" "2145" "2903"
2879 "2143" "2145" "2903"
2881 "2143" "2145" "2903"
2903 "2143" "2145" "2903"
2929 "2143" "2145" "2903"
2993 "2143" "2145" "2993"
3626 "2143" "2145" "3626"
2146 "2143" "2146" "2146"
2168 "2143" "2146" "2168"
2259 "2143" "2146" "2168"
2261 "2143" "2146" "2168"
2262 "2143" "2146" "2168"
2264 "2143" "2146" "2168"
2265 "2143" "2146" "2168"
2267 "2143" "2146" "2168"
2268 "2143" "2146" "2168"
2269 "2143" "2146" "2168"
2742 "2143" "2146" "2168"
2959 "2143" "2146" "2168"
3015 "2143" "2146" "2168"
2169 "2143" "2146" "2169"
2271 "2143" "2146" "2169"
2277 "2143" "2146" "2169"
2278 "2143" "2146" "2169"
2841 "2143" "2146" "2169"
2173 "2143" "2146" "2173"
2204 "2143" "2204" "2204"
2055 "2143" "2227" "2055"
2056 "2143" "2227" "2055"
2057 "2143" "2227" "2055"
2058 "2143" "2227" "2055"
2059 "2143" "2227" "2055"
2060 "2143" "2227" "2055"
2918 "2143" "2227" "2055"
3488 "2143" "2227" "2055"
2148 "2143" "2227" "2148"
2445 "2143" "2227" "2148"
3794 "2143" "2227" "2148"
3795 "2143" "2227" "2148"
3796 "2143" "2227" "2148"
2186 "2143" "2227" "2186"
2187 "2143" "2227" "2186"
2188 "2143" "2227" "2186"
2190 "2143" "2227" "2186"
2191 "2143" "2227" "2186"
2192 "2143" "2227" "2186"
2196 "2143" "2227" "2186"
2994 "2143" "2227" "2186"
2208 "2143" "2227" "2208"
2209 "2143" "2227" "2208"
2212 "2143" "2227" "2208"
2213 "2143" "2227" "2208"
2215 "2143" "2227" "2208"
2216 "2143" "2227" "2216"
3007 "2143" "2227" "2216"
3008 "2143" "2227" "2216"
3854 "2143" "2227" "2216"
2227 "2143" "2227" "2227"
3002 "2143" "2227" "3002"
3639 "2143" "2227" "3002"
3605 "2143" "2227" "3605"
3609 "2143" "2227" "3609"
3616 "2143" "2227" "3616"
3640 "2143" "2227" "3616"
3642 "2143" "2227" "3616"
3617 "2143" "2227" "3617"
3627 "2143" "2227" "3627"
3628 "2143" "2227" "3628"
3629 "2143" "2227" "3629"
3630 "2143" "2227" "3630"
3809 "2143" "2227" "3809"
2231 "2143" "2231" "2231"
2236 "2143" "2231" "2236"
2237 "2143" "2231" "2237"
2239 "2143" "2231" "2239"
2247 "2143" "2231" "2247"
2248 "2143" "2231" "2248"
2250 "2143" "2231" "2250"
2251 "2143" "2231" "2251"
2253 "2143" "2231" "2253"
2256 "2143" "2231" "2256"
2257 "2143" "2231" "2257"
2772 "2143" "2231" "2772"
2773 "2143" "2231" "2772"
2774 "2143" "2231" "2772"
3619 "2143" "2231" "3619"
3620 "2143" "2231" "3620"
2296 "2143" "2296" "2296"
2297 "2143" "2296" "2297"
2306 "2143" "2296" "2297"
2307 "2143" "2296" "2297"
2308 "2143" "2296" "2297"
2301 "2143" "2296" "2301"
2309 "2143" "2296" "2301"
2310 "2143" "2296" "2301"
2302 "2143" "2296" "2302"
2324 "2143" "2296" "2302"
2325 "2143" "2296" "2302"
2326 "2143" "2296" "2302"
2304 "2143" "2296" "2304"
3038 "2143" "3038" "3038"
3039 "2143" "3038" "3039"
3040 "2143" "3038" "3040"
3041 "2143" "3038" "3041"
3665 "2143" "3038" "3041"
3635 "2143" "3038" "3635"
3636 "2143" "3038" "3636"
3637 "2143" "3038" "3637"
3856 "2143" "3038" "3856"
3857 "2143" "3038" "3857"
3311 "2143" "3311" "3311"
3312 "2143" "3312" "3312"
1019 "2143" "3313" "2734"
2734 "2143" "3313" "2734"
3043 "2143" "3313" "2734"
3047 "2143" "3313" "2734"
3313 "2143" "3313" "3313"
3666 "2143" "3313" "3666"
3334 "2143" "3335" "3334"
3335 "2143" "3335" "3335"
2150 "2143" "3597" "2150"
2155 "2143" "3597" "2150"
2157 "2143" "3597" "2150"
2163 "2143" "3597" "2150"
2164 "2143" "3597" "2150"
2171 "2143" "3597" "2150"
2172 "2143" "3597" "2150"
2420 "2143" "3597" "2150"
3647 "2143" "3597" "2150"
2151 "2143" "3597" "2151"
2174 "2143" "3597" "2151"
2178 "2143" "3597" "2151"
2870 "2143" "3597" "2151"
2871 "2143" "3597" "2151"
2154 "2143" "3597" "2154"
2161 "2143" "3597" "2161"
2203 "2143" "3597" "2161"
2205 "2143" "3597" "2161"
2206 "2143" "3597" "2161"
2207 "2143" "3597" "2161"
2210 "2143" "3597" "2161"
2211 "2143" "3597" "2161"
2218 "2143" "3597" "2161"
2229 "2143" "3597" "2161"
2998 "2143" "3597" "2161"
2176 "2143" "3597" "2176"
2152 "2143" "3597" "3594"
2156 "2143" "3597" "3594"
2166 "2143" "3597" "3594"
2167 "2143" "3597" "3594"
2182 "2143" "3597" "3594"
2185 "2143" "3597" "3594"
2252 "2143" "3597" "3594"
2255 "2143" "3597" "3594"
2880 "2143" "3597" "3594"
3594 "2143" "3597" "3594"
3597 "2143" "3597" "3597"
3599 "2143" "3597" "3599"
3600 "2143" "3597" "3600"
3601 "2143" "3597" "3601"
3631 "2143" "3597" "3631"
3632 "2143" "3597" "3632"
3634 "2143" "3597" "3634"
3643 "2143" "3597" "3643"
3644 "2143" "3597" "3644"
3656 "2143" "3597" "3656"
3618 "2143" "3618" "3618"
2147 "2143" "3621" "2147"
2175 "2143" "3621" "2147"
2177 "2143" "3621" "2147"
2179 "2143" "3621" "2147"
2181 "2143" "3621" "2147"
2183 "2143" "3621" "2147"
2349 "2143" "3621" "2147"
2947 "2143" "3621" "2147"
3622 "2143" "3621" "2147"
3747 "2143" "3621" "2147"
3025 "2143" "3621" "3025"
3030 "2143" "3621" "3030"
3610 "2143" "3621" "3610"
3611 "2143" "3621" "3610"
3623 "2143" "3621" "3610"
3612 "2143" "3621" "3612"
3613 "2143" "3621" "3613"
3614 "2143" "3621" "3614"
3615 "2143" "3621" "3615"
3621 "2143" "3621" "3621"
3624 "2143" "3621" "3624"
3633 "2143" "3621" "3633"
3673 "2143" "3673" "3673"
3674 "2143" "3673" "3674"
3690 "2143" "3673" "3674"
3691 "2143" "3673" "3674"
3692 "2143" "3673" "3674"
3693 "2143" "3673" "3674"
3675 "2143" "3673" "3675"
3676 "2143" "3673" "3676"
3677 "2143" "3673" "3677"
3678 "2143" "3678" "3678"
3679 "2143" "3678" "3679"
3680 "2143" "3678" "3680"
3681 "2143" "3678" "3681"
3815 "2143" "3678" "3815"
2079 "2364" "2142" "2079"
2142 "2364" "2142" "2142"
2288 "2364" "2142" "2288"
2289 "2364" "2142" "2289"
2364 "2364" "2364" "2364"
2434 "2364" "2434" "2434"
2632 "2364" "2434" "2632"
2635 "2364" "2434" "2635"
2643 "2364" "2434" "2643"
2683 "2364" "2434" "2683"
2685 "2364" "2434" "2683"
2869 "2364" "2434" "2683"
2872 "2364" "2434" "2683"
2873 "2364" "2434" "2683"
2972 "2364" "2434" "2683"
3483 "2364" "2434" "2683"
3645 "2364" "2434" "2683"
3646 "2364" "2434" "2683"
3893 "2364" "2434" "2683"
3894 "2364" "2434" "2683"
2684 "2364" "2434" "2684"
2728 "2364" "2434" "2728"
2793 "2364" "2434" "2793"
2860 "2364" "2434" "2860"
2866 "2364" "2434" "2866"
2965 "2364" "2434" "2965"
2702 "2364" "2434" "3361"
3361 "2364" "2434" "3361"
3370 "2364" "2434" "3370"
3382 "2364" "2434" "3370"
3383 "2364" "2434" "3370"
3683 "2364" "2434" "3370"
3688 "2364" "2434" "3370"
2634 "2364" "2434" "3373"
3373 "2364" "2434" "3373"
3501 "2364" "2434" "3501"
3810 "2364" "2434" "3810"
3813 "2364" "2434" "3813"
3898 "2364" "2434" "3898"
1084 "2364" "2475" "1084"
1085 "2364" "2475" "1084"
1086 "2364" "2475" "1084"
1088 "2364" "2475" "1084"
1908 "2364" "2475" "1084"
1909 "2364" "2475" "1084"
2450 "2364" "2475" "1084"
2692 "2364" "2475" "1084"
2693 "2364" "2475" "1084"
2694 "2364" "2475" "1084"
3064 "2364" "2475" "1084"
3183 "2364" "2475" "1084"
3241 "2364" "2475" "1084"
3243 "2364" "2475" "1084"
3292 "2364" "2475" "1084"
3331 "2364" "2475" "1084"
3828 "2364" "2475" "1084"
1087 "2364" "2475" "1089"
1089 "2364" "2475" "1089"
1090 "2364" "2475" "1089"
1091 "2364" "2475" "1089"
1092 "2364" "2475" "1089"
2393 "2364" "2475" "1089"
3184 "2364" "2475" "1089"
1083 "2364" "2475" "2365"
2365 "2364" "2475" "2365"
2920 "2364" "2475" "2365"
3185 "2364" "2475" "2365"
3227 "2364" "2475" "2365"
3858 "2364" "2475" "2365"
3859 "2364" "2475" "2365"
3887 "2364" "2475" "2365"
3888 "2364" "2475" "2365"
3889 "2364" "2475" "2365"
3890 "2364" "2475" "2365"
2475 "2364" "2475" "2475"
2476 "2364" "2475" "2476"
2477 "2364" "2475" "2477"
2561 "2364" "2475" "2561"
2564 "2364" "2475" "2561"
2608 "2364" "2475" "2561"
2856 "2364" "2475" "2561"
2857 "2364" "2475" "2561"
2858 "2364" "2475" "2561"
2859 "2364" "2475" "2561"
3182 "2364" "2475" "2561"
3892 "2364" "2475" "2561"
2835 "2364" "2475" "2835"
2836 "2364" "2475" "2835"
3188 "2364" "2475" "2835"
3758 "2364" "2475" "2835"
2868 "2364" "2475" "2868"
3225 "2364" "2475" "2868"
3350 "2364" "2475" "2868"
2914 "2364" "2475" "2914"
3036 "2364" "2475" "2914"
3037 "2364" "2475" "2914"
3232 "2364" "2475" "2914"
3342 "2364" "2475" "2914"
3181 "2364" "2475" "3181"
3187 "2364" "2475" "3187"
3221 "2364" "2475" "3221"
3222 "2364" "2475" "3222"
3295 "2364" "2475" "3222"
3223 "2364" "2475" "3223"
3224 "2364" "2475" "3224"
3226 "2364" "2475" "3226"
3228 "2364" "2475" "3228"
3229 "2364" "2475" "3229"
3230 "2364" "2475" "3230"
3371 "2364" "2475" "3371"
3746 "2364" "2475" "3371"
3797 "2364" "2475" "3371"
3798 "2364" "2475" "3371"
3764 "2364" "2475" "3764"
3765 "2364" "2475" "3764"
96 "2364" "2475" "96"
189 "2364" "2475" "96"
190 "2364" "2475" "96"
191 "2364" "2475" "96"
192 "2364" "2475" "96"
588 "2364" "2475" "96"
1082 "2364" "2475" "96"
1814 "2364" "2475" "96"
1822 "2364" "2475" "96"
1937 "2364" "2475" "96"
2414 "2364" "2475" "96"
2855 "2364" "2475" "96"
3044 "2364" "2475" "96"
3180 "2364" "2475" "96"
3231 "2364" "2475" "96"
3377 "2364" "2475" "96"
3685 "2364" "2475" "96"
3822 "2364" "2475" "96"
3860 "2364" "2475" "96"
3861 "2364" "2475" "96"
3891 "2364" "2475" "96"
2486 "2364" "2486" "2486"
2620 "2364" "2620" "2620"
3821 "2364" "2620" "3821"
3825 "2364" "2620" "3825"
3826 "2364" "2620" "3826"
3827 "2364" "2620" "3827"
2456 "2364" "2667" "2456"
2457 "2364" "2667" "2456"
2458 "2364" "2667" "2456"
3754 "2364" "2667" "2456"
2667 "2364" "2667" "2667"
2668 "2364" "2667" "2668"
2671 "2364" "2667" "2668"
3012 "2364" "2667" "2668"
2669 "2364" "2667" "2669"
2672 "2364" "2667" "2669"
2673 "2364" "2667" "2669"
2753 "2364" "2667" "2669"
2754 "2364" "2667" "2669"
3011 "2364" "2667" "2669"
3755 "2364" "2667" "2669"
2708 "2364" "2667" "2708"
2709 "2364" "2667" "2708"
2712 "2364" "2667" "2708"
2713 "2364" "2667" "2708"
2710 "2364" "2667" "2710"
2711 "2364" "2667" "2710"
2729 "2364" "2667" "2729"
2735 "2364" "2667" "2729"
2736 "2364" "2667" "2729"
2737 "2364" "2667" "2729"
2738 "2364" "2667" "2729"
2796 "2364" "2667" "2796"
2802 "2364" "2667" "2796"
2803 "2364" "2667" "2796"
2804 "2364" "2667" "2796"
2808 "2364" "2667" "2796"
3023 "2364" "2667" "2796"
2799 "2364" "2667" "2799"
2805 "2364" "2667" "2799"
2800 "2364" "2667" "2800"
2806 "2364" "2667" "2800"
2801 "2364" "2667" "2801"
2807 "2364" "2667" "2801"
2973 "2364" "2667" "2973"
2988 "2364" "2667" "2973"
2974 "2364" "2667" "2974"
2978 "2364" "2667" "2974"
2979 "2364" "2667" "2974"
2989 "2364" "2667" "2974"
2975 "2364" "2667" "2975"
2976 "2364" "2667" "2975"
2977 "2364" "2667" "2975"
2987 "2364" "2667" "2975"
3013 "2364" "2667" "3013"
3014 "2364" "2667" "3013"
3016 "2364" "2667" "3016"
3017 "2364" "2667" "3016"
3018 "2364" "2667" "3018"
3019 "2364" "2667" "3018"
3020 "2364" "2667" "3020"
3021 "2364" "2667" "3020"
3022 "2364" "2667" "3020"
3072 "2364" "2667" "3072"
3073 "2364" "2667" "3072"
3074 "2364" "2667" "3072"
3126 "2364" "2667" "3126"
3189 "2364" "2667" "3126"
3190 "2364" "2667" "3126"
3191 "2364" "2667" "3126"
3192 "2364" "2667" "3126"
3193 "2364" "2667" "3126"
3194 "2364" "2667" "3126"
3195 "2364" "2667" "3126"
3196 "2364" "2667" "3126"
3197 "2364" "2667" "3126"
3198 "2364" "2667" "3126"
3199 "2364" "2667" "3126"
3200 "2364" "2667" "3126"
3201 "2364" "2667" "3126"
3202 "2364" "2667" "3126"
3203 "2364" "2667" "3126"
3204 "2364" "2667" "3126"
3205 "2364" "2667" "3126"
3206 "2364" "2667" "3126"
3283 "2364" "2667" "3283"
3284 "2364" "2667" "3283"
3290 "2364" "2667" "3290"
3291 "2364" "2667" "3290"
3753 "2364" "2667" "3803"
3803 "2364" "2667" "3803"
3804 "2364" "2667" "3804"
3805 "2364" "2667" "3804"
2718 "2364" "2718" "2718"
2730 "2364" "2718" "2730"
2731 "2364" "2718" "2731"
2732 "2364" "2718" "2732"
2733 "2364" "2718" "2733"
3150 "2364" "2718" "3150"
3152 "2364" "2718" "3152"
3338 "2364" "2718" "3338"
3458 "2364" "2718" "3458"
2762 "2364" "2762" "2762"
2769 "2364" "2769" "2769"
2823 "2364" "2823" "2823"
2958 "2364" "2958" "2958"
2970 "2364" "2970" "2970"
2971 "2364" "2971" "2971"
3028 "2364" "3028" "3028"
3077 "2364" "3077" "3077"
1790 "2364" "3084" "1790"
1792 "2364" "3084" "1790"
1793 "2364" "3084" "1790"
1794 "2364" "3084" "1790"
2383 "2364" "3084" "1790"
2675 "2364" "3084" "1790"
3451 "2364" "3084" "1790"
3452 "2364" "3084" "1790"
3457 "2364" "3084" "1790"
2366 "2364" "3084" "2366"
2439 "2364" "3084" "2366"
2440 "2364" "3084" "2366"
2448 "2364" "3084" "2366"
2449 "2364" "3084" "2366"
2942 "2364" "3084" "2366"
2367 "2364" "3084" "2367"
2820 "2364" "3084" "2367"
2821 "2364" "3084" "2367"
2861 "2364" "3084" "2367"
2867 "2364" "3084" "2367"
2894 "2364" "3084" "2367"
3214 "2364" "3084" "2367"
3882 "2364" "3084" "2367"
2368 "2364" "3084" "2368"
2895 "2364" "3084" "2368"
2896 "2364" "3084" "2368"
2897 "2364" "3084" "2368"
2369 "2364" "3084" "2369"
3055 "2364" "3084" "2369"
3056 "2364" "3084" "2369"
3454 "2364" "3084" "2369"
2408 "2364" "3084" "2408"
2409 "2364" "3084" "2408"
2410 "2364" "3084" "2408"
2411 "2364" "3084" "2408"
2413 "2364" "3084" "2408"
2438 "2364" "3084" "2408"
2447 "2364" "3084" "2408"
2452 "2364" "3084" "2408"
2459 "2364" "3084" "2408"
2463 "2364" "3084" "2408"
2464 "2364" "3084" "2408"
2465 "2364" "3084" "2408"
3208 "2364" "3084" "2408"
3209 "2364" "3084" "2408"
3210 "2364" "3084" "2408"
3339 "2364" "3084" "2408"
3340 "2364" "3084" "2408"
3341 "2364" "3084" "2408"
3343 "2364" "3084" "2408"
3346 "2364" "3084" "2408"
3347 "2364" "3084" "2408"
3348 "2364" "3084" "2408"
3817 "2364" "3084" "2408"
2436 "2364" "3084" "2436"
2446 "2364" "3084" "2436"
2900 "2364" "3084" "2436"
3219 "2364" "3084" "2436"
2679 "2364" "3084" "2679"
2704 "2364" "3084" "2679"
2705 "2364" "3084" "2679"
2775 "2364" "3084" "2775"
3657 "2364" "3084" "2775"
3658 "2364" "3084" "2775"
3659 "2364" "3084" "2775"
3660 "2364" "3084" "2775"
3661 "2364" "3084" "2775"
3662 "2364" "3084" "2775"
3663 "2364" "3084" "2775"
3664 "2364" "3084" "2775"
2834 "2364" "3084" "2834"
2837 "2364" "3084" "2834"
2838 "2364" "3084" "2834"
2898 "2364" "3084" "2834"
2899 "2364" "3084" "2834"
2921 "2364" "3084" "2834"
3083 "2364" "3084" "3083"
3464 "2364" "3084" "3083"
3084 "2364" "3084" "3084"
3211 "2364" "3084" "3211"
3213 "2364" "3084" "3213"
3215 "2364" "3084" "3215"
3216 "2364" "3084" "3216"
3217 "2364" "3084" "3217"
3218 "2364" "3084" "3218"
3220 "2364" "3084" "3220"
3358 "2364" "3084" "3358"
3359 "2364" "3084" "3359"
3360 "2364" "3084" "3360"
3116 "2364" "3116" "3116"
3120 "2364" "3116" "3120"
3121 "2364" "3116" "3121"
3122 "2364" "3116" "3122"
3123 "2364" "3116" "3123"
3124 "2364" "3116" "3124"
3125 "2364" "3116" "3125"
3130 "2364" "3130" "3130"
3131 "2364" "3131" "3131"
3133 "2364" "3133" "3133"
3093 "2364" "3256" "3093"
3114 "2364" "3256" "3093"
3115 "2364" "3256" "3093"
3263 "2364" "3256" "3093"
3264 "2364" "3256" "3093"
3274 "2364" "3256" "3093"
3275 "2364" "3256" "3093"
3256 "2364" "3256" "3256"
3257 "2364" "3256" "3257"
3259 "2364" "3256" "3257"
3260 "2364" "3256" "3257"
3266 "2364" "3256" "3257"
3258 "2364" "3256" "3258"
3261 "2364" "3256" "3258"
3262 "2364" "3256" "3258"
3273 "2364" "3256" "3258"
3265 "2364" "3256" "3265"
3698 "2364" "3256" "3698"
3699 "2364" "3256" "3698"
3700 "2364" "3256" "3698"
3701 "2364" "3256" "3698"
3730 "2364" "3256" "3698"
3897 "2364" "3256" "3698"
3702 "2364" "3256" "3702"
3703 "2364" "3256" "3702"
3704 "2364" "3256" "3702"
3705 "2364" "3256" "3702"
3732 "2364" "3256" "3702"
3706 "2364" "3256" "3706"
3707 "2364" "3256" "3706"
3708 "2364" "3256" "3706"
3709 "2364" "3256" "3706"
3731 "2364" "3256" "3706"
3710 "2364" "3256" "3710"
3711 "2364" "3256" "3710"
3712 "2364" "3256" "3710"
3713 "2364" "3256" "3710"
3733 "2364" "3256" "3710"
3714 "2364" "3256" "3714"
3715 "2364" "3256" "3714"
3716 "2364" "3256" "3714"
3717 "2364" "3256" "3714"
3736 "2364" "3256" "3714"
3718 "2364" "3256" "3718"
3719 "2364" "3256" "3718"
3720 "2364" "3256" "3718"
3721 "2364" "3256" "3718"
3735 "2364" "3256" "3718"
3722 "2364" "3256" "3722"
3723 "2364" "3256" "3722"
3724 "2364" "3256" "3722"
3725 "2364" "3256" "3722"
3734 "2364" "3256" "3722"
3726 "2364" "3256" "3726"
3727 "2364" "3256" "3726"
3728 "2364" "3256" "3726"
3729 "2364" "3256" "3726"
3737 "2364" "3256" "3726"
3279 "2364" "3279" "3279"
3302 "2364" "3302" "3302"
3763 "2364" "3302" "3763"
3319 "2364" "3319" "3319"
3369 "2364" "3369" "3369"
1786 "2364" "3586" "1786"
1788 "2364" "3586" "1786"
2076 "2364" "3586" "1786"
2348 "2364" "3586" "1786"
3606 "2364" "3586" "1786"
3607 "2364" "3586" "1786"
3895 "2364" "3586" "1786"
3586 "2364" "3586" "3586"
3818 "2364" "3818" "3818"
165 "2370" "165" "165"
263 "2370" "165" "263"
264 "2370" "165" "264"
265 "2370" "165" "265"
266 "2370" "165" "266"
3282 "2370" "165" "3282"
3762 "2370" "165" "3762"
587 "2370" "165" "587"
204 "2370" "204" "204"
3233 "2370" "204" "3233"
2180 "2370" "2180" "2180"
2184 "2370" "2180" "2184"
2189 "2370" "2180" "2189"
2194 "2370" "2180" "2194"
2199 "2370" "2180" "2199"
2395 "2370" "2180" "2395"
2703 "2370" "2180" "2703"
2721 "2370" "2180" "2721"
3499 "2370" "2180" "3499"
3500 "2370" "2180" "3500"
3802 "2370" "2180" "3802"
2200 "2370" "2200" "2200"
2417 "2370" "2200" "2417"
2418 "2370" "2200" "2418"
2437 "2370" "2200" "2437"
3684 "2370" "2200" "2437"
2441 "2370" "2200" "2441"
2443 "2370" "2200" "2443"
2444 "2370" "2200" "2444"
2674 "2370" "2200" "2674"
2680 "2370" "2200" "2674"
2677 "2370" "2200" "2677"
2740 "2370" "2200" "2677"
2741 "2370" "2200" "2677"
2678 "2370" "2200" "2678"
3236 "2370" "2200" "3236"
2254 "2370" "2254" "2254"
2656 "2370" "2254" "2656"
2258 "2370" "2258" "2258"
2260 "2370" "2260" "2260"
2282 "2370" "2282" "2282"
2283 "2370" "2282" "2283"
2284 "2370" "2282" "2284"
2285 "2370" "2282" "2285"
2286 "2370" "2282" "2286"
2400 "2370" "2282" "2400"
2401 "2370" "2282" "2401"
2370 "2370" "2370" "2370"
2453 "2370" "2453" "2453"
2460 "2370" "2453" "2461"
2461 "2370" "2453" "2461"
2663 "2370" "2453" "2663"
2666 "2370" "2453" "2663"
2827 "2370" "2453" "2827"
2830 "2370" "2453" "2827"
2828 "2370" "2453" "2828"
2831 "2370" "2453" "2828"
2829 "2370" "2453" "2829"
2832 "2370" "2453" "2829"
3604 "2370" "2453" "3604"
3837 "2370" "2453" "3837"
2454 "2370" "2454" "2454"
2455 "2370" "2454" "2455"
2462 "2370" "2454" "2462"
2676 "2370" "2454" "2676"
2743 "2370" "2454" "2743"
2767 "2370" "2454" "2767"
2792 "2370" "2454" "2792"
2822 "2370" "2454" "2822"
3648 "2370" "2454" "3648"
3790 "2370" "2454" "3790"
3791 "2370" "2454" "3790"
2485 "2370" "2485" "2485"
1992 "2370" "2627" "1992"
1993 "2370" "2627" "1992"
1994 "2370" "2627" "1992"
1997 "2370" "2627" "1992"
2627 "2370" "2627" "2627"
2628 "2370" "2627" "2628"
2629 "2370" "2627" "2628"
2630 "2370" "2627" "2628"
2691 "2370" "2627" "2628"
2964 "2370" "2627" "2628"
3840 "2370" "2627" "2628"
2688 "2370" "2627" "2688"
2689 "2370" "2627" "2688"
2690 "2370" "2627" "2688"
2778 "2370" "2627" "2688"
2779 "2370" "2627" "2688"
2948 "2370" "2627" "2948"
2949 "2370" "2627" "2948"
2962 "2370" "2627" "2948"
2966 "2370" "2627" "2966"
2967 "2370" "2627" "2966"
2968 "2370" "2627" "2966"
2969 "2370" "2627" "2966"
3242 "2370" "2627" "3242"
3251 "2370" "2627" "3251"
3252 "2370" "2627" "3251"
3253 "2370" "2627" "3251"
3254 "2370" "2627" "3251"
3255 "2370" "2627" "3251"
2662 "2370" "2662" "2662"
157 "2370" "2662" "3495"
3495 "2370" "2662" "3495"
858 "2370" "2662" "3496"
3496 "2370" "2662" "3496"
3497 "2370" "2662" "3497"
2659 "2370" "2662" "3498"
3498 "2370" "2662" "3498"
7 "2370" "2662" "7"
2402 "2370" "2662" "7"
2658 "2370" "2662" "7"
2660 "2370" "2662" "7"
2661 "2370" "2662" "7"
2725 "2370" "2764" "2725"
2726 "2370" "2764" "2725"
2727 "2370" "2764" "2725"
2764 "2370" "2764" "2764"
2765 "2370" "2764" "2765"
2766 "2370" "2764" "2766"
2768 "2370" "2764" "2768"
2842 "2370" "2764" "2842"
3009 "2370" "2764" "3009"
3010 "2370" "2764" "3010"
3816 "2370" "2764" "3816"
3838 "2370" "2764" "3838"
3839 "2370" "2764" "3839"
2915 "2370" "2915" "2915"
2916 "2370" "2915" "2916"
2917 "2370" "2915" "2917"
3830 "2370" "2915" "3830"
1023 "2370" "3" "1023"
1024 "2370" "3" "1024"
1026 "2370" "3" "1026"
2626 "2370" "3" "1026"
2670 "2370" "3" "1026"
2686 "2370" "3" "1026"
2687 "2370" "3" "1026"
1031 "2370" "3" "1031"
1038 "2370" "3" "1038"
2354 "2370" "3" "1038"
108 "2370" "3" "108"
206 "2370" "3" "108"
2014 "2370" "3" "108"
2015 "2370" "3" "108"
3026 "2370" "3" "108"
3027 "2370" "3" "108"
3031 "2370" "3" "108"
117 "2370" "3" "117"
2080 "2370" "3" "117"
2081 "2370" "3" "117"
2082 "2370" "3" "117"
2083 "2370" "3" "117"
2412 "2370" "3" "117"
3293 "2370" "3" "117"
3695 "2370" "3" "117"
139 "2370" "3" "139"
155 "2370" "3" "155"
2631 "2370" "3" "155"
17 "2370" "3" "17"
170 "2370" "3" "170"
179 "2370" "3" "179"
如果您不局限于标题中的级别描述，那么这是非常简单的——在树列中，您可以执行一些非常基本的格式设置。看 但下面这样简单的东西会给你一棵小树：
select cat_id
, case when cat_id = lvl_1 then cat_id::text
when cat_id = lvl_2 then '# '|| cat_id::text
when cat_id = lvl_3 then '## '|| cat_id::text
else '### '|| cat_id::text
end
from categories
order by lvl_1, case when cat_id = lvl_1 then 0 else lvl_1 end
,lvl_2, case when lvl_2 = cat_id then 0 else lvl_2 end
, lvl_3, case when lvl_3 = cat_id then 0 else lvl_3 end
, cat_id
如果要在该级别的第一行中包含“lvl 1”说明，可以使用查看前一行是否与当前行的“级别”相同，如果它们不在同一级别，则包含说明。这与您提到的不同，因为对于某些类别级别1，ID大于其对应的类别2和类别3，所以我们不能仅通过订购级别1、级别2和级别3来实现这一点。我的问题是，使用just ORDER by无法获得准确的ID结果“s不是递增的。我认为我们需要明确地有一个排序顺序或任何其他解决方案，您对此有什么建议吗？您是对的，我在最初的回答中遗漏了这一点。我根据条件更新了订单，以考虑到这种情况。如果有帮助，请告诉我！