Add clickhouse-trash-schema benchmark

clickhouse-trash-schema/README.md

@@ -0,0 +1,7 @@
+# Trash Schema Benchmark
+
+The same as ClickBench, but the `hits` table is split into a hundred tables with two columns each: `id` and one of the original columns. `hits` becomes a view that joins all of them by `id`, so every query has to join a hundred tables.
+
+This models data science and AI workloads where there is often a large dataset of objects (images, comments, HTML pages) with iteratively computed properties (classification, embeddings, annotations), each stored in a separate "parallel" table sharing the same primary key. The goal is to find opportunities to optimize queries on top of such a schema.
+
+The queries and settings are identical to ClickBench. `create.sql` defines the per-column tables sorted by `id` and the `hits` view; `split.sql` distributes the loaded data from a staging table into the per-column tables.

clickhouse-trash-schema/benchmark.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+# Thin shim — actual flow is in lib/benchmark-common.sh.
+export BENCH_DOWNLOAD_SCRIPT="download-hits-parquet-partitioned"
+exec ../lib/benchmark-common.sh

clickhouse-trash-schema/check

@@ -0,0 +1,4 @@
+#!/bin/bash
+set -e
+
+clickhouse-client --query "SELECT 1" >/dev/null

clickhouse-trash-schema/data-size

@@ -0,0 +1,4 @@
+#!/bin/bash
+set -e
+
+clickhouse-client --query "SELECT sum(total_bytes) FROM system.tables WHERE database = 'default' AND name LIKE 'hits\_%'"

clickhouse-trash-schema/install

@@ -0,0 +1,16 @@
+#!/bin/bash
+set -e
+
+if [ ! -x /usr/bin/clickhouse ]; then
+    curl https://clickhouse.com/ | sh
+    sudo ./clickhouse install --noninteractive
+fi
+
+# Eager startup loading, same as ../clickhouse/install.
+sudo mkdir -p /etc/clickhouse-server/config.d
+sudo tee /etc/clickhouse-server/config.d/eager_load.yaml >/dev/null <<'EOF'
+async_load_databases: false
+merge_tree:
+  primary_key_lazy_load: 0
+  columns_and_secondary_indices_sizes_lazy_calculation: 0
+EOF

clickhouse-trash-schema/load

@@ -0,0 +1,18 @@
+#!/bin/bash
+set -e
+
+clickhouse-client < create.sql
+
+# Symlink the parquet files into user_files, same as ../clickhouse/load.
+for f in hits_*.parquet; do
+    sudo ln -sf "$PWD/$f" /var/lib/clickhouse/user_files/"$f"
+done
+sudo chown -h clickhouse:clickhouse /var/lib/clickhouse/user_files/hits_*.parquet
+
+# row_number() OVER (), not rowNumberInAllBlocks(): the latter is per-thread and produces duplicate ids under parallel reads.
+clickhouse-client --query "INSERT INTO hits_staging SELECT row_number() OVER () AS id, * FROM file('hits_*.parquet')"
+
+clickhouse-client < split.sql
+
+sudo rm -f /var/lib/clickhouse/user_files/hits_*.parquet
+sync

clickhouse-trash-schema/queries.sql

@@ -0,0 +1,43 @@
+SELECT COUNT(*) FROM hits;
+SELECT COUNT(*) FROM hits WHERE AdvEngineID <> 0;
+SELECT SUM(AdvEngineID), COUNT(*), AVG(ResolutionWidth) FROM hits;
+SELECT AVG(UserID) FROM hits;
+SELECT COUNT(DISTINCT UserID) FROM hits;
+SELECT COUNT(DISTINCT SearchPhrase) FROM hits;
+SELECT MIN(EventDate), MAX(EventDate) FROM hits;
+SELECT AdvEngineID, COUNT(*) FROM hits WHERE AdvEngineID <> 0 GROUP BY AdvEngineID ORDER BY COUNT(*) DESC;
+SELECT RegionID, COUNT(DISTINCT UserID) AS u FROM hits GROUP BY RegionID ORDER BY u DESC LIMIT 10;
+SELECT RegionID, SUM(AdvEngineID), COUNT(*) AS c, AVG(ResolutionWidth), COUNT(DISTINCT UserID) FROM hits GROUP BY RegionID ORDER BY c DESC LIMIT 10;
+SELECT MobilePhoneModel, COUNT(DISTINCT UserID) AS u FROM hits WHERE MobilePhoneModel <> '' GROUP BY MobilePhoneModel ORDER BY u DESC LIMIT 10;
+SELECT MobilePhone, MobilePhoneModel, COUNT(DISTINCT UserID) AS u FROM hits WHERE MobilePhoneModel <> '' GROUP BY MobilePhone, MobilePhoneModel ORDER BY u DESC LIMIT 10;
+SELECT SearchPhrase, COUNT(*) AS c FROM hits WHERE SearchPhrase <> '' GROUP BY SearchPhrase ORDER BY c DESC LIMIT 10;
+SELECT SearchPhrase, COUNT(DISTINCT UserID) AS u FROM hits WHERE SearchPhrase <> '' GROUP BY SearchPhrase ORDER BY u DESC LIMIT 10;
+SELECT SearchEngineID, SearchPhrase, COUNT(*) AS c FROM hits WHERE SearchPhrase <> '' GROUP BY SearchEngineID, SearchPhrase ORDER BY c DESC LIMIT 10;
+SELECT UserID, COUNT(*) FROM hits GROUP BY UserID ORDER BY COUNT(*) DESC LIMIT 10;
+SELECT UserID, SearchPhrase, COUNT(*) FROM hits GROUP BY UserID, SearchPhrase ORDER BY COUNT(*) DESC LIMIT 10;
+SELECT UserID, SearchPhrase, COUNT(*) FROM hits GROUP BY UserID, SearchPhrase LIMIT 10;
+SELECT UserID, extract(minute FROM EventTime) AS m, SearchPhrase, COUNT(*) FROM hits GROUP BY UserID, m, SearchPhrase ORDER BY COUNT(*) DESC LIMIT 10;
+SELECT UserID FROM hits WHERE UserID = 435090932899640449;
+SELECT COUNT(*) FROM hits WHERE URL LIKE '%google%';
+SELECT SearchPhrase, MIN(URL), COUNT(*) AS c FROM hits WHERE URL LIKE '%google%' AND SearchPhrase <> '' GROUP BY SearchPhrase ORDER BY c DESC LIMIT 10;
+SELECT SearchPhrase, MIN(URL), MIN(Title), COUNT(*) AS c, COUNT(DISTINCT UserID) FROM hits WHERE Title LIKE '%Google%' AND URL NOT LIKE '%.google.%' AND SearchPhrase <> '' GROUP BY SearchPhrase ORDER BY c DESC LIMIT 10;
+SELECT * FROM hits WHERE URL LIKE '%google%' ORDER BY EventTime LIMIT 10;
+SELECT SearchPhrase FROM hits WHERE SearchPhrase <> '' ORDER BY EventTime LIMIT 10;
+SELECT SearchPhrase FROM hits WHERE SearchPhrase <> '' ORDER BY SearchPhrase LIMIT 10;
+SELECT SearchPhrase FROM hits WHERE SearchPhrase <> '' ORDER BY EventTime, SearchPhrase LIMIT 10;
+SELECT CounterID, AVG(length(URL)) AS l, COUNT(*) AS c FROM hits WHERE URL <> '' GROUP BY CounterID HAVING COUNT(*) > 100000 ORDER BY l DESC LIMIT 25;
+SELECT REGEXP_REPLACE(Referer, '^https?://(?:www\.)?([^/]+)/.*$', '\1') AS k, AVG(length(Referer)) AS l, COUNT(*) AS c, MIN(Referer) FROM hits WHERE Referer <> '' GROUP BY k HAVING COUNT(*) > 100000 ORDER BY l DESC LIMIT 25;
+SELECT SUM(ResolutionWidth), SUM(ResolutionWidth + 1), SUM(ResolutionWidth + 2), SUM(ResolutionWidth + 3), SUM(ResolutionWidth + 4), SUM(ResolutionWidth + 5), SUM(ResolutionWidth + 6), SUM(ResolutionWidth + 7), SUM(ResolutionWidth + 8), SUM(ResolutionWidth + 9), SUM(ResolutionWidth + 10), SUM(ResolutionWidth + 11), SUM(ResolutionWidth + 12), SUM(ResolutionWidth + 13), SUM(ResolutionWidth + 14), SUM(ResolutionWidth + 15), SUM(ResolutionWidth + 16), SUM(ResolutionWidth + 17), SUM(ResolutionWidth + 18), SUM(ResolutionWidth + 19), SUM(ResolutionWidth + 20), SUM(ResolutionWidth + 21), SUM(ResolutionWidth + 22), SUM(ResolutionWidth + 23), SUM(ResolutionWidth + 24), SUM(ResolutionWidth + 25), SUM(ResolutionWidth + 26), SUM(ResolutionWidth + 27), SUM(ResolutionWidth + 28), SUM(ResolutionWidth + 29), SUM(ResolutionWidth + 30), SUM(ResolutionWidth + 31), SUM(ResolutionWidth + 32), SUM(ResolutionWidth + 33), SUM(ResolutionWidth + 34), SUM(ResolutionWidth + 35), SUM(ResolutionWidth + 36), SUM(ResolutionWidth + 37), SUM(ResolutionWidth + 38), SUM(ResolutionWidth + 39), SUM(ResolutionWidth + 40), SUM(ResolutionWidth + 41), SUM(ResolutionWidth + 42), SUM(ResolutionWidth + 43), SUM(ResolutionWidth + 44), SUM(ResolutionWidth + 45), SUM(ResolutionWidth + 46), SUM(ResolutionWidth + 47), SUM(ResolutionWidth + 48), SUM(ResolutionWidth + 49), SUM(ResolutionWidth + 50), SUM(ResolutionWidth + 51), SUM(ResolutionWidth + 52), SUM(ResolutionWidth + 53), SUM(ResolutionWidth + 54), SUM(ResolutionWidth + 55), SUM(ResolutionWidth + 56), SUM(ResolutionWidth + 57), SUM(ResolutionWidth + 58), SUM(ResolutionWidth + 59), SUM(ResolutionWidth + 60), SUM(ResolutionWidth + 61), SUM(ResolutionWidth + 62), SUM(ResolutionWidth + 63), SUM(ResolutionWidth + 64), SUM(ResolutionWidth + 65), SUM(ResolutionWidth + 66), SUM(ResolutionWidth + 67), SUM(ResolutionWidth + 68), SUM(ResolutionWidth + 69), SUM(ResolutionWidth + 70), SUM(ResolutionWidth + 71), SUM(ResolutionWidth + 72), SUM(ResolutionWidth + 73), SUM(ResolutionWidth + 74), SUM(ResolutionWidth + 75), SUM(ResolutionWidth + 76), SUM(ResolutionWidth + 77), SUM(ResolutionWidth + 78), SUM(ResolutionWidth + 79), SUM(ResolutionWidth + 80), SUM(ResolutionWidth + 81), SUM(ResolutionWidth + 82), SUM(ResolutionWidth + 83), SUM(ResolutionWidth + 84), SUM(ResolutionWidth + 85), SUM(ResolutionWidth + 86), SUM(ResolutionWidth + 87), SUM(ResolutionWidth + 88), SUM(ResolutionWidth + 89) FROM hits;
+SELECT SearchEngineID, ClientIP, COUNT(*) AS c, SUM(IsRefresh), AVG(ResolutionWidth) FROM hits WHERE SearchPhrase <> '' GROUP BY SearchEngineID, ClientIP ORDER BY c DESC LIMIT 10;
+SELECT WatchID, ClientIP, COUNT(*) AS c, SUM(IsRefresh), AVG(ResolutionWidth) FROM hits WHERE SearchPhrase <> '' GROUP BY WatchID, ClientIP ORDER BY c DESC LIMIT 10;
+SELECT WatchID, ClientIP, COUNT(*) AS c, SUM(IsRefresh), AVG(ResolutionWidth) FROM hits GROUP BY WatchID, ClientIP ORDER BY c DESC LIMIT 10;
+SELECT URL, COUNT(*) AS c FROM hits GROUP BY URL ORDER BY c DESC LIMIT 10;
+SELECT 1, URL, COUNT(*) AS c FROM hits GROUP BY 1, URL ORDER BY c DESC LIMIT 10;
+SELECT ClientIP, ClientIP - 1, ClientIP - 2, ClientIP - 3, COUNT(*) AS c FROM hits GROUP BY ClientIP, ClientIP - 1, ClientIP - 2, ClientIP - 3 ORDER BY c DESC LIMIT 10;
+SELECT URL, COUNT(*) AS PageViews FROM hits WHERE CounterID = 62 AND EventDate >= '2013-07-01' AND EventDate <= '2013-07-31' AND DontCountHits = 0 AND IsRefresh = 0 AND URL <> '' GROUP BY URL ORDER BY PageViews DESC LIMIT 10;
+SELECT Title, COUNT(*) AS PageViews FROM hits WHERE CounterID = 62 AND EventDate >= '2013-07-01' AND EventDate <= '2013-07-31' AND DontCountHits = 0 AND IsRefresh = 0 AND Title <> '' GROUP BY Title ORDER BY PageViews DESC LIMIT 10;
+SELECT URL, COUNT(*) AS PageViews FROM hits WHERE CounterID = 62 AND EventDate >= '2013-07-01' AND EventDate <= '2013-07-31' AND IsRefresh = 0 AND IsLink <> 0 AND IsDownload = 0 GROUP BY URL ORDER BY PageViews DESC LIMIT 10 OFFSET 1000;
+SELECT TraficSourceID, SearchEngineID, AdvEngineID, CASE WHEN (SearchEngineID = 0 AND AdvEngineID = 0) THEN Referer ELSE '' END AS Src, URL AS Dst, COUNT(*) AS PageViews FROM hits WHERE CounterID = 62 AND EventDate >= '2013-07-01' AND EventDate <= '2013-07-31' AND IsRefresh = 0 GROUP BY TraficSourceID, SearchEngineID, AdvEngineID, Src, Dst ORDER BY PageViews DESC LIMIT 10 OFFSET 1000;
+SELECT URLHash, EventDate, COUNT(*) AS PageViews FROM hits WHERE CounterID = 62 AND EventDate >= '2013-07-01' AND EventDate <= '2013-07-31' AND IsRefresh = 0 AND TraficSourceID IN (-1, 6) AND RefererHash = 3594120000172545465 GROUP BY URLHash, EventDate ORDER BY PageViews DESC LIMIT 10 OFFSET 100;
+SELECT WindowClientWidth, WindowClientHeight, COUNT(*) AS PageViews FROM hits WHERE CounterID = 62 AND EventDate >= '2013-07-01' AND EventDate <= '2013-07-31' AND IsRefresh = 0 AND DontCountHits = 0 AND URLHash = 2868770270353813622 GROUP BY WindowClientWidth, WindowClientHeight ORDER BY PageViews DESC LIMIT 10 OFFSET 10000;
+SELECT DATE_TRUNC('minute', EventTime) AS M, COUNT(*) AS PageViews FROM hits WHERE CounterID = 62 AND EventDate >= '2013-07-14' AND EventDate <= '2013-07-15' AND IsRefresh = 0 AND DontCountHits = 0 GROUP BY DATE_TRUNC('minute', EventTime) ORDER BY DATE_TRUNC('minute', EventTime) LIMIT 10 OFFSET 1000;

clickhouse-trash-schema/query

@@ -0,0 +1,8 @@
+#!/bin/bash
+# Reads a SQL query from stdin, runs it via clickhouse-client.
+# Stdout: query result (default format).
+# Stderr: query runtime in fractional seconds on the last line (from --time).
+# Exit non-zero on error.
+set -e
+
+clickhouse-client --time --format=Pretty

clickhouse-trash-schema/split.sql

@@ -0,0 +1,106 @@
+INSERT INTO hits_WatchID SELECT id, WatchID FROM hits_staging;
+INSERT INTO hits_JavaEnable SELECT id, JavaEnable FROM hits_staging;
+INSERT INTO hits_Title SELECT id, Title FROM hits_staging;
+INSERT INTO hits_GoodEvent SELECT id, GoodEvent FROM hits_staging;
+INSERT INTO hits_EventTime SELECT id, EventTime FROM hits_staging;
+INSERT INTO hits_EventDate SELECT id, EventDate FROM hits_staging;
+INSERT INTO hits_CounterID SELECT id, CounterID FROM hits_staging;
+INSERT INTO hits_ClientIP SELECT id, ClientIP FROM hits_staging;
+INSERT INTO hits_RegionID SELECT id, RegionID FROM hits_staging;
+INSERT INTO hits_UserID SELECT id, UserID FROM hits_staging;
+INSERT INTO hits_CounterClass SELECT id, CounterClass FROM hits_staging;
+INSERT INTO hits_OS SELECT id, OS FROM hits_staging;
+INSERT INTO hits_UserAgent SELECT id, UserAgent FROM hits_staging;
+INSERT INTO hits_URL SELECT id, URL FROM hits_staging;
+INSERT INTO hits_Referer SELECT id, Referer FROM hits_staging;
+INSERT INTO hits_IsRefresh SELECT id, IsRefresh FROM hits_staging;
+INSERT INTO hits_RefererCategoryID SELECT id, RefererCategoryID FROM hits_staging;
+INSERT INTO hits_RefererRegionID SELECT id, RefererRegionID FROM hits_staging;
+INSERT INTO hits_URLCategoryID SELECT id, URLCategoryID FROM hits_staging;
+INSERT INTO hits_URLRegionID SELECT id, URLRegionID FROM hits_staging;
+INSERT INTO hits_ResolutionWidth SELECT id, ResolutionWidth FROM hits_staging;
+INSERT INTO hits_ResolutionHeight SELECT id, ResolutionHeight FROM hits_staging;
+INSERT INTO hits_ResolutionDepth SELECT id, ResolutionDepth FROM hits_staging;
+INSERT INTO hits_FlashMajor SELECT id, FlashMajor FROM hits_staging;
+INSERT INTO hits_FlashMinor SELECT id, FlashMinor FROM hits_staging;
+INSERT INTO hits_FlashMinor2 SELECT id, FlashMinor2 FROM hits_staging;
+INSERT INTO hits_NetMajor SELECT id, NetMajor FROM hits_staging;
+INSERT INTO hits_NetMinor SELECT id, NetMinor FROM hits_staging;
+INSERT INTO hits_UserAgentMajor SELECT id, UserAgentMajor FROM hits_staging;
+INSERT INTO hits_UserAgentMinor SELECT id, UserAgentMinor FROM hits_staging;
+INSERT INTO hits_CookieEnable SELECT id, CookieEnable FROM hits_staging;
+INSERT INTO hits_JavascriptEnable SELECT id, JavascriptEnable FROM hits_staging;
+INSERT INTO hits_IsMobile SELECT id, IsMobile FROM hits_staging;
+INSERT INTO hits_MobilePhone SELECT id, MobilePhone FROM hits_staging;
+INSERT INTO hits_MobilePhoneModel SELECT id, MobilePhoneModel FROM hits_staging;
+INSERT INTO hits_Params SELECT id, Params FROM hits_staging;
+INSERT INTO hits_IPNetworkID SELECT id, IPNetworkID FROM hits_staging;
+INSERT INTO hits_TraficSourceID SELECT id, TraficSourceID FROM hits_staging;
+INSERT INTO hits_SearchEngineID SELECT id, SearchEngineID FROM hits_staging;
+INSERT INTO hits_SearchPhrase SELECT id, SearchPhrase FROM hits_staging;
+INSERT INTO hits_AdvEngineID SELECT id, AdvEngineID FROM hits_staging;
+INSERT INTO hits_IsArtifical SELECT id, IsArtifical FROM hits_staging;
+INSERT INTO hits_WindowClientWidth SELECT id, WindowClientWidth FROM hits_staging;
+INSERT INTO hits_WindowClientHeight SELECT id, WindowClientHeight FROM hits_staging;
+INSERT INTO hits_ClientTimeZone SELECT id, ClientTimeZone FROM hits_staging;
+INSERT INTO hits_ClientEventTime SELECT id, ClientEventTime FROM hits_staging;
+INSERT INTO hits_SilverlightVersion1 SELECT id, SilverlightVersion1 FROM hits_staging;
+INSERT INTO hits_SilverlightVersion2 SELECT id, SilverlightVersion2 FROM hits_staging;
+INSERT INTO hits_SilverlightVersion3 SELECT id, SilverlightVersion3 FROM hits_staging;
+INSERT INTO hits_SilverlightVersion4 SELECT id, SilverlightVersion4 FROM hits_staging;
+INSERT INTO hits_PageCharset SELECT id, PageCharset FROM hits_staging;
+INSERT INTO hits_CodeVersion SELECT id, CodeVersion FROM hits_staging;
+INSERT INTO hits_IsLink SELECT id, IsLink FROM hits_staging;
+INSERT INTO hits_IsDownload SELECT id, IsDownload FROM hits_staging;
+INSERT INTO hits_IsNotBounce SELECT id, IsNotBounce FROM hits_staging;
+INSERT INTO hits_FUniqID SELECT id, FUniqID FROM hits_staging;
+INSERT INTO hits_OriginalURL SELECT id, OriginalURL FROM hits_staging;
+INSERT INTO hits_HID SELECT id, HID FROM hits_staging;
+INSERT INTO hits_IsOldCounter SELECT id, IsOldCounter FROM hits_staging;
+INSERT INTO hits_IsEvent SELECT id, IsEvent FROM hits_staging;
+INSERT INTO hits_IsParameter SELECT id, IsParameter FROM hits_staging;
+INSERT INTO hits_DontCountHits SELECT id, DontCountHits FROM hits_staging;
+INSERT INTO hits_WithHash SELECT id, WithHash FROM hits_staging;
+INSERT INTO hits_HitColor SELECT id, HitColor FROM hits_staging;
+INSERT INTO hits_LocalEventTime SELECT id, LocalEventTime FROM hits_staging;
+INSERT INTO hits_Age SELECT id, Age FROM hits_staging;
+INSERT INTO hits_Sex SELECT id, Sex FROM hits_staging;
+INSERT INTO hits_Income SELECT id, Income FROM hits_staging;
+INSERT INTO hits_Interests SELECT id, Interests FROM hits_staging;
+INSERT INTO hits_Robotness SELECT id, Robotness FROM hits_staging;
+INSERT INTO hits_RemoteIP SELECT id, RemoteIP FROM hits_staging;
+INSERT INTO hits_WindowName SELECT id, WindowName FROM hits_staging;
+INSERT INTO hits_OpenerName SELECT id, OpenerName FROM hits_staging;
+INSERT INTO hits_HistoryLength SELECT id, HistoryLength FROM hits_staging;
+INSERT INTO hits_BrowserLanguage SELECT id, BrowserLanguage FROM hits_staging;
+INSERT INTO hits_BrowserCountry SELECT id, BrowserCountry FROM hits_staging;
+INSERT INTO hits_SocialNetwork SELECT id, SocialNetwork FROM hits_staging;
+INSERT INTO hits_SocialAction SELECT id, SocialAction FROM hits_staging;
+INSERT INTO hits_HTTPError SELECT id, HTTPError FROM hits_staging;
+INSERT INTO hits_SendTiming SELECT id, SendTiming FROM hits_staging;
+INSERT INTO hits_DNSTiming SELECT id, DNSTiming FROM hits_staging;
+INSERT INTO hits_ConnectTiming SELECT id, ConnectTiming FROM hits_staging;
+INSERT INTO hits_ResponseStartTiming SELECT id, ResponseStartTiming FROM hits_staging;
+INSERT INTO hits_ResponseEndTiming SELECT id, ResponseEndTiming FROM hits_staging;
+INSERT INTO hits_FetchTiming SELECT id, FetchTiming FROM hits_staging;
+INSERT INTO hits_SocialSourceNetworkID SELECT id, SocialSourceNetworkID FROM hits_staging;
+INSERT INTO hits_SocialSourcePage SELECT id, SocialSourcePage FROM hits_staging;
+INSERT INTO hits_ParamPrice SELECT id, ParamPrice FROM hits_staging;
+INSERT INTO hits_ParamOrderID SELECT id, ParamOrderID FROM hits_staging;
+INSERT INTO hits_ParamCurrency SELECT id, ParamCurrency FROM hits_staging;
+INSERT INTO hits_ParamCurrencyID SELECT id, ParamCurrencyID FROM hits_staging;
+INSERT INTO hits_OpenstatServiceName SELECT id, OpenstatServiceName FROM hits_staging;
+INSERT INTO hits_OpenstatCampaignID SELECT id, OpenstatCampaignID FROM hits_staging;
+INSERT INTO hits_OpenstatAdID SELECT id, OpenstatAdID FROM hits_staging;
+INSERT INTO hits_OpenstatSourceID SELECT id, OpenstatSourceID FROM hits_staging;
+INSERT INTO hits_UTMSource SELECT id, UTMSource FROM hits_staging;
+INSERT INTO hits_UTMMedium SELECT id, UTMMedium FROM hits_staging;
+INSERT INTO hits_UTMCampaign SELECT id, UTMCampaign FROM hits_staging;
+INSERT INTO hits_UTMContent SELECT id, UTMContent FROM hits_staging;
+INSERT INTO hits_UTMTerm SELECT id, UTMTerm FROM hits_staging;
+INSERT INTO hits_FromTag SELECT id, FromTag FROM hits_staging;
+INSERT INTO hits_HasGCLID SELECT id, HasGCLID FROM hits_staging;
+INSERT INTO hits_RefererHash SELECT id, RefererHash FROM hits_staging;
+INSERT INTO hits_URLHash SELECT id, URLHash FROM hits_staging;
+INSERT INTO hits_CLID SELECT id, CLID FROM hits_staging;
+DROP TABLE hits_staging;

clickhouse-trash-schema/start

@@ -0,0 +1,4 @@
+#!/bin/bash
+set -e
+
+sudo clickhouse start

clickhouse-trash-schema/stop

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+sudo clickhouse stop || true

clickhouse-trash-schema/template.json

@@ -0,0 +1,11 @@
+{
+  "system": "ClickHouse (trash schema)",
+  "proprietary": "no",
+  "hardware": "cpu",
+  "tuned": "no",
+  "tags": [
+    "C++",
+    "column-oriented",
+    "ClickHouse derivative"
+  ]
+}