1. Clickhouse(娴侀噺鍒嗘瀽(涓).婕忔枟鍒嗘瀽妗堜緥)
绁炵瓥鐢ㄦ埛鍒嗘瀽妯″瀷钬斺旀纺鏂楀垎鏋愮殑浣跨敤鏂规硶
Clickhouse鏁版嵁妯″瀷涔嬫湁搴忔纺鏂楀垎鏋
Hologres婕忔枟鍒嗘瀽鍑芥暟
Java UDF StarRocks Docs
window 钬 婊戝姩绐楁埛镄勫ぇ灏忥纴鍗曚綅鏄绉掋
mode - 杩欐槸涓涓鍙阃夌殑鍙傛暟銆
钬荣trict钬 - 褰 钬荣trict钬 璁剧疆镞讹纴windowFunnel()浠呭瑰敮涓鍊煎簲鐢ㄥ尮閰嶆浔浠躲
timestamp 钬 鍖呭惈镞堕棿镄勫垪銆 鏁版嵁绫诲瀷鏀鎸侊细 镞ユ湡, 镞ユ湡镞堕棿 鍜屽叾浠栨棤绗﹀彿鏁存暟绫诲瀷锛堣锋敞镒忥纴鍗充娇镞堕棿鎴虫敮鎸 UInt64 绫诲瀷锛屽畠镄勫间笉鑳借秴杩呕nt64链澶у硷纴鍗2^63-1锛夈
cond 钬 浜嬩欢阈剧殑绾︽潫𨱒′欢銆 UInt8 绫诲瀷銆
濡傛灉鏁版嵁鍦ㄤ笉钖岀殑瀹屾垚镣瑰叿链夊氢釜浜嬩欢阈撅纴鍒栾ュ嚱鏁板皢浠呰緭鍑烘渶闀块摼镄勫ぇ灏
ClickHouse鏁扮粍鍑芥暟
婕忔枟鍒嗘瀽妯″瀷
鍒嗘瀽"2022-01-02"杩椤ぉ 璺寰勪负钬沧祻瑙->镣瑰嚮->涓嫔崟->鏀浠樷濈殑杞鍖栨儏鍐
杩欎釜鍑芥暟鐪嬭捣𨱒ュ緢寮哄ぇ,浣嗘槸灏戜简镣逛粈涔,鎴戠悊瑙ｇ殑娴侀噺鍒嗘瀽婊戝姩绐楀彛涓嶅お涓镙
䦅涚偣:寰堟樉铹,濡傛灉鏁版嵁閲忚秴杩100浜垮线涓,clickhouse澶ф傚氨𨰾変简,姣旇缉濂界殑鏂规硶杩樻槸缁揿悎bitmap杩涜岀紪镰,杩欓噷链夌瘒鏂囩珷鍙浠ュ弬钥冧竴涓嬬殑
姣忓ぉ鏁扮栌浜跨敤鎴疯屼负鏁版嵁锛岀编锲㈢偣璇勬庝箞瀹炵幇绉掔骇杞鍖栧垎鏋愶纻
neighbor
uniqCombined | ClickHouse Docs
housepower/olap2018: 鏄撹傜浜屽众OLAP婕忔枟绠楁硶澶ц禌
涓婇溃杩欑嶆槸杩欐牱镄,濡傛灉涓涓猽id璺寰勬槸4灞,闾ｄ箞浠栧彲鑳借蛋浜嗙涓灞,镌鐪嬩骇鍝佺殑鍙ｅ缎浜,濡傛灉鍙绠楄蛋浜嗙涓姝ョ殑鏄1,璧颁简锲涙ョ殑鍙绠椾綔4,闾ｄ箞灏辨槸涓婇溃杩欑嶅彛寰
groupArray | ClickHouse Docs
Array Functions | ClickHouse Docs
Clickhouse涓镄𪞝rray绫诲瀷