[sql]: index performance

Author: altendorfme

setup/schema.sql

@@ -1,32 +1,12 @@
 SET NAMES utf8mb4;
 SET FOREIGN_KEY_CHECKS = 0;
 
-DROP TABLE IF EXISTS `feed_items`;
-CREATE TABLE `feed_items`  (
-    `id` int(10) UNSIGNED NOT NULL AUTO_INCREMENT,
-    `feed_id` int(10) UNSIGNED NOT NULL,
-    `title` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
-    `author` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL DEFAULT NULL,
-    `content` text CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL DEFAULT NULL,
-    `url` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
-    `image_url` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL DEFAULT NULL,
-    `guid` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
-    `published_at` datetime NULL DEFAULT NULL,
-    `is_visible` tinyint(1) NULL DEFAULT 1,
-    `created_at` datetime NULL DEFAULT current_timestamp(),
-    `updated_at` datetime NULL DEFAULT current_timestamp() ON UPDATE CURRENT_TIMESTAMP,
-    PRIMARY KEY (`id`) USING BTREE,
-    UNIQUE INDEX `unique_item`(`feed_id`, `guid`) USING BTREE,
-    FULLTEXT INDEX `idx_title_content`(`title`, `content`),
-    CONSTRAINT `feed_items_ibfk_1` FOREIGN KEY (`feed_id`) REFERENCES `feeds` (`id`) ON DELETE CASCADE ON UPDATE RESTRICT
-) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci ROW_FORMAT = Dynamic;
-
 DROP TABLE IF EXISTS `feeds`;
-CREATE TABLE `feeds`  (
+CREATE TABLE `feeds` (
     `id` int(10) UNSIGNED NOT NULL AUTO_INCREMENT,
     `title` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
-    `feed_url` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
-    `site_url` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
+    `feed_url` varchar(512) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
+    `site_url` varchar(512) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
     `feed_type` enum('rss1','rss2','atom','rdf','csv','json','xml') CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
     `last_post_id` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL DEFAULT NULL,
     `last_checked` datetime NULL DEFAULT NULL,
@@ -36,9 +16,36 @@ CREATE TABLE `feeds`  (
     `updated_at` datetime NULL DEFAULT current_timestamp() ON UPDATE CURRENT_TIMESTAMP,
     `language` varchar(5) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL DEFAULT NULL,
     PRIMARY KEY (`id`) USING BTREE,
-    UNIQUE INDEX `feed_url`(`feed_url`) USING BTREE,
+    UNIQUE INDEX `feed_url`(`feed_url`(255)) USING,
     INDEX `idx_feed_status`(`status`) USING BTREE,
-    INDEX `idx_feed_type`(`feed_type`) USING BTREE
+    INDEX `idx_feed_type`(`feed_type`) USING BTREE,
+    INDEX `idx_last_checked`(`last_checked`) USING BTREE,
+    INDEX `idx_last_updated`(`last_updated`) USING BTREE,
+    INDEX `idx_status_checked`(`status`, `last_checked`) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci ROW_FORMAT = Dynamic;
+
+DROP TABLE IF EXISTS `feed_items`;
+CREATE TABLE `feed_items` (
+    `id` int(10) UNSIGNED NOT NULL AUTO_INCREMENT,
+    `feed_id` int(10) UNSIGNED NOT NULL,
+    `title` varchar(512) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
+    `author` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL DEFAULT NULL,
+    `content` mediumtext CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL DEFAULT NULL,
+    `url` varchar(512) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
+    `image_url` varchar(512) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL DEFAULT NULL,
+    `guid` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
+    `published_at` datetime NULL DEFAULT NULL,
+    `is_visible` tinyint(1) NULL DEFAULT 1,
+    `created_at` datetime NULL DEFAULT current_timestamp(),
+    `updated_at` datetime NULL DEFAULT current_timestamp() ON UPDATE CURRENT_TIMESTAMP,
+    PRIMARY KEY (`id`) USING BTREE,
+    UNIQUE INDEX `unique_item`(`feed_id`, `guid`) USING BTREE,
+    FULLTEXT INDEX `idx_title_content`(`title`, `content`),
+    INDEX `idx_published_at`(`published_at`) USING BTREE,
+    INDEX `idx_is_visible`(`is_visible`) USING BTREE,
+    INDEX `idx_feed_published`(`feed_id`, `published_at`) USING BTREE,
+    INDEX `idx_feed_visible`(`feed_id`, `is_visible`) USING BTREE,
+    CONSTRAINT `feed_items_ibfk_1` FOREIGN KEY (`feed_id`) REFERENCES `feeds` (`id`) ON DELETE CASCADE ON UPDATE RESTRICT
 ) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci ROW_FORMAT = Dynamic;
 
 SET FOREIGN_KEY_CHECKS = 1;