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							"Children": [
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									"TextMarkType": "code",
									"TextMarkTextContent": "\u003cquery1\u003e AND \u003cquery2\u003e"
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							]
						},
						{
							"Type": "NodeTableCell",
							"Data": "td",
							"Children": [
								{
									"Type": "NodeText",
									"Data": "query1 和 query2 同時匹配"
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							]
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					]
				},
				{
					"Type": "NodeTableRow",
					"Data": "tr",
					"Children": [
						{
							"Type": "NodeTableCell",
							"Data": "td",
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									"TextMarkType": "code",
									"TextMarkTextContent": "\u003cquery1\u003e OR \u003cquery2\u003e"
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						{
							"Type": "NodeTableCell",
							"Data": "td",
							"Children": [
								{
									"Type": "NodeText",
									"Data": "query1 或者 query2 匹配"
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					]
				},
				{
					"Type": "NodeTableRow",
					"Data": "tr",
					"Children": [
						{
							"Type": "NodeTableCell",
							"Data": "td",
							"Children": [
								{
									"Type": "NodeTextMark",
									"TextMarkType": "code",
									"TextMarkTextContent": "\u003cquery1\u003e NOT \u003cquery2\u003e"
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							]
						},
						{
							"Type": "NodeTableCell",
							"Data": "td",
							"Children": [
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									"Type": "NodeText",
									"Data": "query1 匹配同時 query2 不匹配"
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			]
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			"Children": [
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					"Type": "NodeText",
					"Data": "使用英文圓括號 "
				},
				{
					"Type": "NodeTextMark",
					"TextMarkType": "code",
					"TextMarkTextContent": "()"
				},
				{
					"Type": "NodeText",
					"Data": " 可以組合查詢的優先級，例如："
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		},
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			"Type": "NodeCodeBlock",
			"IsFencedCodeBlock": true,
			"Properties": {
				"id": "20220415232130-8ymwyjm",
				"updated": "20220502163553"
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			"Children": [
				{
					"Type": "NodeCodeBlockFenceOpenMarker",
					"Data": "```"
				},
				{
					"Type": "NodeCodeBlockFenceInfoMarker",
					"CodeBlockInfo": "c3Fs"
				},
				{
					"Type": "NodeCodeBlockCode",
					"Data": "-- 匹配包含 \"one\" 或者 \"two\" 的塊，不匹配包含 \"three\" 的塊\n'one OR two NOT three'\n\n-- 匹配包含 \"one\" 或者包含 \"two\" 且不包含 \"three\" 的塊\n'one OR (two NOT three)'\n"
				},
				{
					"Type": "NodeCodeBlockFenceCloseMarker",
					"Data": "```"
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		},
		{
			"ID": "20220415232130-7a9cd6e",
			"Type": "NodeParagraph",
			"Properties": {
				"id": "20220415232130-7a9cd6e",
				"updated": "20220415232130"
			},
			"Children": [
				{
					"Type": "NodeText",
					"Data": "使用空格分隔的多個短語默認使用 "
				},
				{
					"Type": "NodeTextMark",
					"TextMarkType": "code",
					"TextMarkTextContent": "AND"
				},
				{
					"Type": "NodeText",
					"Data": " 連接，比如："
				}
			]
		},
		{
			"ID": "20220415232130-mdy457p",
			"Type": "NodeCodeBlock",
			"IsFencedCodeBlock": true,
			"Properties": {
				"id": "20220415232130-mdy457p",
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			"Children": [
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					"Type": "NodeCodeBlockFenceOpenMarker",
					"Data": "```"
				},
				{
					"Type": "NodeCodeBlockFenceInfoMarker",
					"CodeBlockInfo": "c3Fs"
				},
				{
					"Type": "NodeCodeBlockCode",
					"Data": "'one two three'         -- 'one AND two AND three'\n'three \"one two\"'       -- 'three AND \"one two\"'\n'one OR two three'      -- 'one OR two AND three'\n\n'(one OR two) three'    -- 語法錯誤！\n'func(one two)'         -- 語法錯誤！\n"
				},
				{
					"Type": "NodeCodeBlockFenceCloseMarker",
					"Data": "```"
				}
			]
		},
		{
			"ID": "20220415232130-1juhjxd",
			"Type": "NodeHeading",
			"HeadingLevel": 2,
			"Properties": {
				"id": "20220415232130-1juhjxd",
				"updated": "20220415234759"
			},
			"Children": [
				{
					"Type": "NodeText",
					"Data": "技術實現"
				}
			]
		},
		{
			"ID": "20220415232130-1w366ul",
			"Type": "NodeParagraph",
			"Properties": {
				"id": "20220415232130-1w366ul",
				"updated": "20220415232130"
			},
			"Children": [
				{
					"Type": "NodeText",
					"Data": "我們通過 "
				},
				{
					"Type": "NodeTextMark",
					"TextMarkType": "a",
					"TextMarkAHref": "https://www.sqlite.org/fts5.html",
					"TextMarkTextContent": "SQLite FTS5"
				},
				{
					"Type": "NodeText",
					"Data": " 實現了全局搜索。"
				}
			]
		},
		{
			"ID": "20220415232130-kdii2n4",
			"Type": "NodeParagraph",
			"Properties": {
				"id": "20220415232130-kdii2n4",
				"updated": "20220415232130"
			},
			"Children": [
				{
					"Type": "NodeText",
					"Data": "系統生成的查詢語句關鍵部分大致是 "
				},
				{
					"Type": "NodeTextMark",
					"TextMarkType": "code",
					"TextMarkTextContent": "MATCH '{content name alias memo}:\" + query"
				},
				{
					"Type": "NodeText",
					"Data": "，"
				},
				{
					"Type": "NodeTextMark",
					"TextMarkType": "code",
					"TextMarkTextContent": "query"
				},
				{
					"Type": "NodeText",
					"Data": " 即用戶輸入部分，對於"
				},
				{
					"Type": "NodeTextMark",
					"TextMarkType": "a",
					"TextMarkAHref": "https://www.sqlite.org/fts5.html#fts5_column_filters",
					"TextMarkTextContent": "列過濾器"
				},
				{
					"Type": "NodeText",
					"Data": " "
				},
				{
					"Type": "NodeTextMark",
					"TextMarkType": "code",
					"TextMarkTextContent": "{content name alias memo}:"
				},
				{
					"Type": "NodeText",
					"Data": " 是通過 "
				},
				{
					"Type": "NodeTextMark",
					"TextMarkType": "kbd",
					"TextMarkTextContent": "設置"
				},
				{
					"Type": "NodeText",
					"Data": " -"
				},
				{
					"Type": "NodeTextMark",
					"TextMarkType": "kbd",
					"TextMarkTextContent": " 搜索"
				},
				{
					"Type": "NodeText",
					"Data": " - "
				},
				{
					"Type": "NodeTextMark",
					"TextMarkType": "kbd",
					"TextMarkTextContent": "屬性"
				},
				{
					"Type": "NodeText",
					"Data": " 生成的。"
				}
			]
		},
		{
			"ID": "20220415232130-ecl8s30",
			"Type": "NodeParagraph",
			"Properties": {
				"id": "20220415232130-ecl8s30",
				"updated": "20220415232130"
			},
			"Children": [
				{
					"Type": "NodeText",
					"Data": "了解到這些以後，我們就可以通過查詢語法來實現查詢嵌入塊，這樣查詢性能會更好："
				}
			]
		},
		{
			"ID": "20220415232130-b00vpj4",
			"Type": "NodeBlockQueryEmbed",
			"Properties": {
				"id": "20220415232130-b00vpj4",
				"updated": "20220415234510"
			},
			"Children": [
				{
					"Type": "NodeOpenBrace"
				},
				{
					"Type": "NodeOpenBrace"
				},
				{
					"Type": "NodeBlockQueryEmbedScript",
					"Data": "SELECT * FROM blocks_fts WHERE blocks_fts MATCH 'content:Query Syntax' AND root_id = '20220415232129-shpzg6r' LIMIT 1"
				},
				{
					"Type": "NodeCloseBrace"
				},
				{
					"Type": "NodeCloseBrace"
				}
			]
		},
		{
			"ID": "20220415232130-rbkk4ko",
			"Type": "NodeParagraph",
			"Properties": {
				"id": "20220415232130-rbkk4ko",
				"updated": "20220415232130"
			},
			"Children": [
				{
					"Type": "NodeText",
					"Data": "除此以外，API 也支持使用 FTS 查詢。"
				}
			]
		},
		{
			"ID": "20220415232130-8ia0bhj",
			"Type": "NodeHeading",
			"HeadingLevel": 3,
			"Properties": {
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				"updated": "20220415232130"
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			"Children": [
				{
					"Type": "NodeText",
					"Data": "大小寫敏感"
				}
			]
		},
		{
			"ID": "20220415232130-xwpb33n",
			"Type": "NodeParagraph",
			"Properties": {
				"id": "20220415232130-xwpb33n",
				"updated": "20220415232130"
			},
			"Children": [
				{
					"Type": "NodeText",
					"Data": "如果開啟了 "
				},
				{
					"Type": "NodeTextMark",
					"TextMarkType": "kbd",
					"TextMarkTextContent": "設置"
				},
				{
					"Type": "NodeText",
					"Data": " - "
				},
				{
					"Type": "NodeTextMark",
					"TextMarkType": "kbd",
					"TextMarkTextContent": "搜索"
				},
				{
					"Type": "NodeText",
					"Data": " - "
				},
				{
					"Type": "NodeTextMark",
					"TextMarkType": "kbd",
					"TextMarkTextContent": "區分大小寫"
				},
				{
					"Type": "NodeText",
					"Data": " 選項，則搜索會區分大小寫，默認該選項是關閉的，即不區分大小寫。"
				}
			]
		},
		{
			"ID": "20220415232130-z1fwurj",
			"Type": "NodeParagraph",
			"Properties": {
				"id": "20220415232130-z1fwurj",
				"updated": "20220415232130"
			},
			"Children": [
				{
					"Type": "NodeText",
					"Data": "由於分詞器是區分大小寫的，所以我們構建了兩張虛擬表來分別索引："
				}
			]
		},
		{
			"ID": "20220415232130-83f3pq6",
			"Type": "NodeList",
			"ListData": {},
			"Properties": {
				"id": "20220415232130-83f3pq6",
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			"Children": [
				{
					"ID": "20220415232130-fr8nexn",
					"Type": "NodeListItem",
					"ListData": {
						"BulletChar": 42,
						"Marker": "Kg=="
					},
					"Properties": {
						"id": "20220415232130-fr8nexn",
						"updated": "20220415232130"
					},
					"Children": [
						{
							"ID": "20220415232130-ivobyfz",
							"Type": "NodeParagraph",
							"Properties": {
								"id": "20220415232130-ivobyfz",
								"updated": "20220415232130"
							},
							"Children": [
								{
									"Type": "NodeTextMark",
									"TextMarkType": "code",
									"TextMarkTextContent": "blocks_fts"
								},
								{
									"Type": "NodeText",
									"Data": "：按字符原樣分詞"
								}
							]
						}
					]
				},
				{
					"ID": "20220415232130-1r29zfb",
					"Type": "NodeListItem",
					"ListData": {
						"BulletChar": 42,
						"Marker": "Kg=="
					},
					"Properties": {
						"id": "20220415232130-1r29zfb",
						"updated": "20220415232130"
					},
					"Children": [
						{
							"ID": "20220415232130-j4oaowk",
							"Type": "NodeParagraph",
							"Properties": {
								"id": "20220415232130-j4oaowk",
								"updated": "20220415232130"
							},
							"Children": [
								{
									"Type": "NodeTextMark",
									"TextMarkType": "code",
									"TextMarkTextContent": "blocks_fts_case_insensitive"
								},
								{
									"Type": "NodeText",
									"Data": "：將英文字母轉換為小寫分詞"
								}
							]
						}
					]
				}
			]
		},
		{
			"ID": "20220415232130-yjj7ba6",
			"Type": "NodeParagraph",
			"Properties": {
				"id": "20220415232130-yjj7ba6",
				"updated": "20220415232130"
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			"Children": [
				{
					"Type": "NodeText",
					"Data": "這樣做的缺點是增加了磁盤空間佔用和降低了索引性能，但是目前暫時沒有更好的方案，所以只能先這樣了。另外，不支持 Unicode 大小寫折疊和變音符號，僅支持英文字母忽略大小寫。"
				}
			]
		},
		{
			"ID": "20220415232130-t5o6exk",
			"Type": "NodeParagraph",
			"Properties": {
				"id": "20220415232130-t5o6exk",
				"updated": "20220415232130"
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			"Children": [
				{
					"Type": "NodeText",
					"Data": "如果你有更好的實現方案，歡迎告訴我們，非常感謝。"
				}
			]
		}
	]
}