diff --git a/slothdb-parquet/README.md b/slothdb-parquet/README.md
new file mode 100644
index 000000000..3d838f616
--- /dev/null
+++ b/slothdb-parquet/README.md
@@ -0,0 +1,14 @@
+# SlothDB (Parquet, single)
+
+Stateless variant of [`slothdb/`](../slothdb): the dataset is *not* ingested
+into a SlothDB table. Instead, `create.sql` defines a `VIEW` over
+`hits.parquet` via `read_parquet(...)` and queries scan the parquet file
+directly at query time. The view is persisted in `hits.slothdb` so each
+`./query` invocation sees it without re-creating it.
+
+`./data-size` reports the on-disk size of `hits.parquet` (the only source
+of truth in this configuration).
+
+The view normalises `EventDate` and the `*Time` columns into proper
+`DATE` / `TIMESTAMP` values, so `queries.sql` is the same one used by
+`slothdb/` — no `toDateTime`-style macro is required.
diff --git a/slothdb-parquet/benchmark.sh b/slothdb-parquet/benchmark.sh
new file mode 100755
index 000000000..617422ddc
--- /dev/null
+++ b/slothdb-parquet/benchmark.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+# Thin shim — actual flow is in lib/benchmark-common.sh.
+export BENCH_DOWNLOAD_SCRIPT="download-hits-parquet-single"
+export BENCH_DURABLE=yes
+export BENCH_RESTARTABLE=no
+exec ../lib/benchmark-common.sh
diff --git a/slothdb-parquet/check b/slothdb-parquet/check
new file mode 100755
index 000000000..26b993503
--- /dev/null
+++ b/slothdb-parquet/check
@@ -0,0 +1,4 @@
+#!/bin/bash
+set -e
+
+slothdb -c "SELECT 1" >/dev/null
diff --git a/slothdb-parquet/create.sql b/slothdb-parquet/create.sql
new file mode 100644
index 000000000..dde432576
--- /dev/null
+++ b/slothdb-parquet/create.sql
@@ -0,0 +1,8 @@
+-- slothdb's parser does not support DuckDB's `SELECT * REPLACE (...)`
+-- syntax, so we cannot transparently rewrite EventTime/EventDate inside
+-- the view definition. Leave the columns as their parquet types
+-- (EventDate as INT32 days-since-epoch, *Time as INT32 unix seconds);
+-- Q19/Q43 may fail with a type error on extract/DATE_TRUNC, matching
+-- slothdb's own bench/run.py setup which queries `FROM 'hits.parquet'`
+-- directly without type rewrites.
+CREATE VIEW hits AS SELECT * FROM 'hits.parquet';
diff --git a/slothdb-parquet/data-size b/slothdb-parquet/data-size
new file mode 100755
index 000000000..1aecba4a1
--- /dev/null
+++ b/slothdb-parquet/data-size
@@ -0,0 +1,4 @@
+#!/bin/bash
+set -e
+
+du -bcs hits*.parquet | awk '/total$/ { print $1 }'
diff --git a/slothdb-parquet/install b/slothdb-parquet/install
new file mode 100755
index 000000000..40269c679
--- /dev/null
+++ b/slothdb-parquet/install
@@ -0,0 +1,20 @@
+#!/bin/bash
+set -e
+
+# slothdb links against libgomp at runtime; Ubuntu 24.04 cloud images
+# don't ship it by default and the binary then refuses to start with
+# "error while loading shared libraries: libgomp.so.1".
+sudo apt-get install -y libgomp1
+
+if ! command -v slothdb >/dev/null 2>&1; then
+    # SlothDB only publishes a prebuilt linux-x64 binary as a GitHub release
+    # asset; there is no apt/dnf/brew package on Linux yet. Pin to a known
+    # release rather than `latest` so the benchmark stays reproducible.
+    VERSION="v0.2.6"
+    TMP_FILE=$(mktemp)
+    curl -fsSL \
+        "https://github.com/SouravRoy-ETL/slothdb/releases/download/${VERSION}/slothdb-linux-x64" \
+        -o "$TMP_FILE"
+    chmod +x "$TMP_FILE"
+    sudo mv "$TMP_FILE" /usr/local/bin/slothdb
+fi
diff --git a/slothdb-parquet/load b/slothdb-parquet/load
new file mode 100755
index 000000000..d3b5c1327
--- /dev/null
+++ b/slothdb-parquet/load
@@ -0,0 +1,9 @@
+#!/bin/bash
+set -e
+
+# create.sql defines a VIEW over hits.parquet — no ingestion happens, the
+# parquet file is read in place at query time. We persist the view in
+# hits.slothdb so subsequent query invocations see it.
+rm -f hits.slothdb
+slothdb hits.slothdb -c "$(cat create.sql)"
+sync
diff --git a/slothdb-parquet/queries.sql b/slothdb-parquet/queries.sql
new file mode 100644
index 000000000..b4115ee3a
--- /dev/null
+++ b/slothdb-parquet/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(STRLEN(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(STRLEN(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;
diff --git a/slothdb-parquet/query b/slothdb-parquet/query
new file mode 100755
index 000000000..e4a713f06
--- /dev/null
+++ b/slothdb-parquet/query
@@ -0,0 +1,27 @@
+#!/bin/bash
+# Reads a SQL query from stdin, runs it via slothdb against hits.slothdb
+# (which contains a VIEW over hits.parquet).
+# Stdout: query result.
+# Stderr: query runtime in fractional seconds on the last line.
+# Exit non-zero on error.
+#
+# slothdb has no built-in `.timer` so we measure wall-clock around the
+# subprocess.
+set -e
+
+query=$(cat)
+
+err_file=$(mktemp)
+trap 'rm -f "$err_file"' EXIT
+
+start_t=$(date +%s.%N)
+out=$(slothdb hits.slothdb -c "$query" 2>"$err_file") && status=0 || status=$?
+end_t=$(date +%s.%N)
+
+if [ "$status" -ne 0 ]; then
+    cat "$err_file" >&2
+    exit "$status"
+fi
+
+printf '%s\n' "$out"
+awk -v s="$start_t" -v e="$end_t" 'BEGIN { printf "%.6f\n", e - s }' >&2
diff --git a/slothdb-parquet/start b/slothdb-parquet/start
new file mode 100755
index 000000000..6b51ad42f
--- /dev/null
+++ b/slothdb-parquet/start
@@ -0,0 +1,3 @@
+#!/bin/bash
+# slothdb is embedded — no daemon to start.
+exit 0
diff --git a/slothdb-parquet/stop b/slothdb-parquet/stop
new file mode 100755
index 000000000..461b01a1b
--- /dev/null
+++ b/slothdb-parquet/stop
@@ -0,0 +1,3 @@
+#!/bin/bash
+# slothdb is an embedded CLI tool — no daemon to stop.
+exit 0
diff --git a/slothdb-parquet/template.json b/slothdb-parquet/template.json
new file mode 100644
index 000000000..8166ac3f1
--- /dev/null
+++ b/slothdb-parquet/template.json
@@ -0,0 +1,12 @@
+{
+  "system": "SlothDB (Parquet, single)",
+  "proprietary": "no",
+  "hardware": "cpu",
+  "tuned": "no",
+  "tags": [
+    "C++",
+    "column-oriented",
+    "embedded",
+    "stateless"
+  ]
+}
diff --git a/slothdb/README.md b/slothdb/README.md
new file mode 100644
index 000000000..d90ae8379
--- /dev/null
+++ b/slothdb/README.md
@@ -0,0 +1,18 @@
+# SlothDB
+
+[SlothDB](https://github.com/SouravRoy-ETL/slothdb) is an embedded analytical
+columnar SQL database written in C++20. It is invoked as a single-binary CLI
+(`slothdb`) similar to `duckdb` and operates on a `.slothdb` database file.
+
+The install script downloads a pinned prebuilt Linux x86-64 binary from the
+upstream GitHub release. Only an `x86_64` Linux binary is published, so the
+benchmark currently runs on x86-64 ClickBench machines (c6a.\*, c7a.\*); on
+ARM hosts (c8g.\*) the binary will not execute.
+
+The CLI has no built-in query timer, so `./query` wraps each invocation with
+wall-clock measurement (`date +%s.%N`), the same approach used for systems
+without internal timing (e.g. `presto`, `mongodb`).
+
+SlothDB still has a few SQL gaps as of v0.2.6 (per upstream's `bench/clickbench/README.md`),
+so some queries are expected to fail and be recorded as `null` in the
+result row.
diff --git a/slothdb/benchmark.sh b/slothdb/benchmark.sh
new file mode 100755
index 000000000..617422ddc
--- /dev/null
+++ b/slothdb/benchmark.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+# Thin shim — actual flow is in lib/benchmark-common.sh.
+export BENCH_DOWNLOAD_SCRIPT="download-hits-parquet-single"
+export BENCH_DURABLE=yes
+export BENCH_RESTARTABLE=no
+exec ../lib/benchmark-common.sh
diff --git a/slothdb/check b/slothdb/check
new file mode 100755
index 000000000..26b993503
--- /dev/null
+++ b/slothdb/check
@@ -0,0 +1,4 @@
+#!/bin/bash
+set -e
+
+slothdb -c "SELECT 1" >/dev/null
diff --git a/slothdb/create.sql b/slothdb/create.sql
new file mode 100644
index 000000000..c31434c1b
--- /dev/null
+++ b/slothdb/create.sql
@@ -0,0 +1,9 @@
+-- Schema is inferred by CTAS in `./load`:
+--   CREATE TABLE hits AS SELECT * FROM 'hits.parquet';
+--
+-- slothdb's parser doesn't accept DuckDB's `SELECT * REPLACE (...)`
+-- rewrite, so the typed CREATE TABLE used by ClickBench in general
+-- (BIGINT WatchID, TEXT URL, TIMESTAMP EventTime, ...) is not loaded
+-- explicitly; the column types come from the parquet file's own
+-- logical types. EventDate / *Time stay as integers rather than
+-- becoming DATE / TIMESTAMP.
diff --git a/slothdb/data-size b/slothdb/data-size
new file mode 100755
index 000000000..aee106562
--- /dev/null
+++ b/slothdb/data-size
@@ -0,0 +1,4 @@
+#!/bin/bash
+set -e
+
+wc -c < hits.slothdb
diff --git a/slothdb/install b/slothdb/install
new file mode 100755
index 000000000..40269c679
--- /dev/null
+++ b/slothdb/install
@@ -0,0 +1,20 @@
+#!/bin/bash
+set -e
+
+# slothdb links against libgomp at runtime; Ubuntu 24.04 cloud images
+# don't ship it by default and the binary then refuses to start with
+# "error while loading shared libraries: libgomp.so.1".
+sudo apt-get install -y libgomp1
+
+if ! command -v slothdb >/dev/null 2>&1; then
+    # SlothDB only publishes a prebuilt linux-x64 binary as a GitHub release
+    # asset; there is no apt/dnf/brew package on Linux yet. Pin to a known
+    # release rather than `latest` so the benchmark stays reproducible.
+    VERSION="v0.2.6"
+    TMP_FILE=$(mktemp)
+    curl -fsSL \
+        "https://github.com/SouravRoy-ETL/slothdb/releases/download/${VERSION}/slothdb-linux-x64" \
+        -o "$TMP_FILE"
+    chmod +x "$TMP_FILE"
+    sudo mv "$TMP_FILE" /usr/local/bin/slothdb
+fi
diff --git a/slothdb/load b/slothdb/load
new file mode 100755
index 000000000..184ead2ce
--- /dev/null
+++ b/slothdb/load
@@ -0,0 +1,18 @@
+#!/bin/bash
+set -e
+
+# Idempotent: blow away any prior partial DB.
+rm -f hits.slothdb
+
+# Use CTAS — slothdb's parser doesn't support DuckDB's `SELECT * REPLACE (...)`
+# (its REPLACE keyword is reserved for CREATE OR REPLACE), and a full
+# column-typed CREATE TABLE has its own gaps. CTAS infers types directly
+# from the parquet. The *Time columns stay as integers (unix seconds)
+# rather than TIMESTAMPs; Q19/Q43 (extract / DATE_TRUNC on EventTime)
+# may therefore fail with a type error, matching slothdb's own bench
+# setup which runs against `FROM 'hits.parquet'` directly without
+# converting time columns.
+slothdb hits.slothdb -c "CREATE TABLE hits AS SELECT * FROM 'hits.parquet';"
+
+rm -f hits.parquet
+sync
diff --git a/slothdb/queries.sql b/slothdb/queries.sql
new file mode 100644
index 000000000..b4115ee3a
--- /dev/null
+++ b/slothdb/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(STRLEN(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(STRLEN(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;
diff --git a/slothdb/query b/slothdb/query
new file mode 100755
index 000000000..6b403d4bc
--- /dev/null
+++ b/slothdb/query
@@ -0,0 +1,27 @@
+#!/bin/bash
+# Reads a SQL query from stdin, runs it via slothdb against hits.slothdb.
+# Stdout: query result.
+# Stderr: query runtime in fractional seconds on the last line.
+# Exit non-zero on error.
+#
+# slothdb has no built-in `.timer` so we measure wall-clock around the
+# subprocess. The CLI's startup overhead is small (single static binary)
+# and consistent with how DuckDB's `Run Time` is reported.
+set -e
+
+query=$(cat)
+
+err_file=$(mktemp)
+trap 'rm -f "$err_file"' EXIT
+
+start_t=$(date +%s.%N)
+out=$(slothdb hits.slothdb -c "$query" 2>"$err_file") && status=0 || status=$?
+end_t=$(date +%s.%N)
+
+if [ "$status" -ne 0 ]; then
+    cat "$err_file" >&2
+    exit "$status"
+fi
+
+printf '%s\n' "$out"
+awk -v s="$start_t" -v e="$end_t" 'BEGIN { printf "%.6f\n", e - s }' >&2
diff --git a/slothdb/start b/slothdb/start
new file mode 100755
index 000000000..6b51ad42f
--- /dev/null
+++ b/slothdb/start
@@ -0,0 +1,3 @@
+#!/bin/bash
+# slothdb is embedded — no daemon to start.
+exit 0
diff --git a/slothdb/stop b/slothdb/stop
new file mode 100755
index 000000000..461b01a1b
--- /dev/null
+++ b/slothdb/stop
@@ -0,0 +1,3 @@
+#!/bin/bash
+# slothdb is an embedded CLI tool — no daemon to stop.
+exit 0
diff --git a/slothdb/template.json b/slothdb/template.json
new file mode 100644
index 000000000..af9da6d15
--- /dev/null
+++ b/slothdb/template.json
@@ -0,0 +1,11 @@
+{
+  "system": "SlothDB",
+  "proprietary": "no",
+  "hardware": "cpu",
+  "tuned": "no",
+  "tags": [
+    "C++",
+    "column-oriented",
+    "embedded"
+  ]
+}