Add pg_deltax

pg_deltax/benchmark.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+# Thin shim — actual flow is in lib/benchmark-common.sh.
+export BENCH_DOWNLOAD_SCRIPT="download-hits-parquet-partitioned"
+export BENCH_DURABLE=yes
+exec ../lib/benchmark-common.sh

pg_deltax/check

@@ -0,0 +1,4 @@
+#!/bin/bash
+set -e
+
+sudo -u postgres psql -t -c 'SELECT 1' >/dev/null

pg_deltax/create.sql

@@ -0,0 +1,108 @@
+CREATE TABLE hits
+(
+    WatchID BIGINT NOT NULL,
+    JavaEnable SMALLINT NOT NULL,
+    Title TEXT NOT NULL,
+    GoodEvent SMALLINT NOT NULL,
+    EventTime TIMESTAMP NOT NULL,
+    EventDate Date NOT NULL,
+    CounterID INTEGER NOT NULL,
+    ClientIP INTEGER NOT NULL,
+    RegionID INTEGER NOT NULL,
+    UserID BIGINT NOT NULL,
+    CounterClass SMALLINT NOT NULL,
+    OS SMALLINT NOT NULL,
+    UserAgent SMALLINT NOT NULL,
+    URL TEXT NOT NULL,
+    Referer TEXT NOT NULL,
+    IsRefresh SMALLINT NOT NULL,
+    RefererCategoryID SMALLINT NOT NULL,
+    RefererRegionID INTEGER NOT NULL,
+    URLCategoryID SMALLINT NOT NULL,
+    URLRegionID INTEGER NOT NULL,
+    ResolutionWidth SMALLINT NOT NULL,
+    ResolutionHeight SMALLINT NOT NULL,
+    ResolutionDepth SMALLINT NOT NULL,
+    FlashMajor SMALLINT NOT NULL,
+    FlashMinor SMALLINT NOT NULL,
+    FlashMinor2 TEXT NOT NULL,
+    NetMajor SMALLINT NOT NULL,
+    NetMinor SMALLINT NOT NULL,
+    UserAgentMajor SMALLINT NOT NULL,
+    UserAgentMinor VARCHAR(255) NOT NULL,
+    CookieEnable SMALLINT NOT NULL,
+    JavascriptEnable SMALLINT NOT NULL,
+    IsMobile SMALLINT NOT NULL,
+    MobilePhone SMALLINT NOT NULL,
+    MobilePhoneModel TEXT NOT NULL,
+    Params TEXT NOT NULL,
+    IPNetworkID INTEGER NOT NULL,
+    TraficSourceID SMALLINT NOT NULL,
+    SearchEngineID SMALLINT NOT NULL,
+    SearchPhrase TEXT NOT NULL,
+    AdvEngineID SMALLINT NOT NULL,
+    IsArtifical SMALLINT NOT NULL,
+    WindowClientWidth SMALLINT NOT NULL,
+    WindowClientHeight SMALLINT NOT NULL,
+    ClientTimeZone SMALLINT NOT NULL,
+    ClientEventTime TIMESTAMP NOT NULL,
+    SilverlightVersion1 SMALLINT NOT NULL,
+    SilverlightVersion2 SMALLINT NOT NULL,
+    SilverlightVersion3 INTEGER NOT NULL,
+    SilverlightVersion4 SMALLINT NOT NULL,
+    PageCharset TEXT NOT NULL,
+    CodeVersion INTEGER NOT NULL,
+    IsLink SMALLINT NOT NULL,
+    IsDownload SMALLINT NOT NULL,
+    IsNotBounce SMALLINT NOT NULL,
+    FUniqID BIGINT NOT NULL,
+    OriginalURL TEXT NOT NULL,
+    HID INTEGER NOT NULL,
+    IsOldCounter SMALLINT NOT NULL,
+    IsEvent SMALLINT NOT NULL,
+    IsParameter SMALLINT NOT NULL,
+    DontCountHits SMALLINT NOT NULL,
+    WithHash SMALLINT NOT NULL,
+    HitColor CHAR NOT NULL,
+    LocalEventTime TIMESTAMP NOT NULL,
+    Age SMALLINT NOT NULL,
+    Sex SMALLINT NOT NULL,
+    Income SMALLINT NOT NULL,
+    Interests SMALLINT NOT NULL,
+    Robotness SMALLINT NOT NULL,
+    RemoteIP INTEGER NOT NULL,
+    WindowName INTEGER NOT NULL,
+    OpenerName INTEGER NOT NULL,
+    HistoryLength SMALLINT NOT NULL,
+    BrowserLanguage TEXT NOT NULL,
+    BrowserCountry TEXT NOT NULL,
+    SocialNetwork TEXT NOT NULL,
+    SocialAction TEXT NOT NULL,
+    HTTPError SMALLINT NOT NULL,
+    SendTiming INTEGER NOT NULL,
+    DNSTiming INTEGER NOT NULL,
+    ConnectTiming INTEGER NOT NULL,
+    ResponseStartTiming INTEGER NOT NULL,
+    ResponseEndTiming INTEGER NOT NULL,
+    FetchTiming INTEGER NOT NULL,
+    SocialSourceNetworkID SMALLINT NOT NULL,
+    SocialSourcePage TEXT NOT NULL,
+    ParamPrice BIGINT NOT NULL,
+    ParamOrderID TEXT NOT NULL,
+    ParamCurrency TEXT NOT NULL,
+    ParamCurrencyID SMALLINT NOT NULL,
+    OpenstatServiceName TEXT NOT NULL,
+    OpenstatCampaignID TEXT NOT NULL,
+    OpenstatAdID TEXT NOT NULL,
+    OpenstatSourceID TEXT NOT NULL,
+    UTMSource TEXT NOT NULL,
+    UTMMedium TEXT NOT NULL,
+    UTMCampaign TEXT NOT NULL,
+    UTMContent TEXT NOT NULL,
+    UTMTerm TEXT NOT NULL,
+    FromTag TEXT NOT NULL,
+    HasGCLID SMALLINT NOT NULL,
+    RefererHash BIGINT NOT NULL,
+    URLHash BIGINT NOT NULL,
+    CLID INTEGER NOT NULL
+);

pg_deltax/data-size

@@ -0,0 +1,8 @@
+#!/bin/bash
+# Report the test database's on-disk size: tables + indexes + TOAST. Excludes
+# pg_wal (durability metadata that grows with activity rather than dataset
+# size) and cluster-wide files (pg_global, pg_xact). Same convention as
+# pgpro_tam and postgresql-orioledb.
+set -eu
+
+sudo -u postgres psql -t -A -c "SELECT pg_database_size('test')"

pg_deltax/install

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+#!/bin/bash
+# Install PostgreSQL 18, Rust + cargo-pgrx, build and install the pg_deltax
+# extension from source, and wire it into shared_preload_libraries. Idempotent.
+set -eu
+
+PGVERSION=${PGVERSION:-18}
+PG_DELTAX_REPO=${PG_DELTAX_REPO:-https://github.com/xataio/deltax.git}
+# Empty by default: don't touch git state. Set to a tag/branch/sha to force
+# a checkout. Avoids clobbering local iteration when ~/pg_deltax is either a
+# git checkout on a feature branch or a non-git rsync from `make deploy`.
+PG_DELTAX_REF=${PG_DELTAX_REF:-}
+PG_CONFIG=/usr/lib/postgresql/$PGVERSION/bin/pg_config
+
+# PostgreSQL 18
+export DEBIAN_FRONTEND=noninteractive
+sudo apt-get update -y
+sudo apt-get install -y gnupg postgresql-common apt-transport-https lsb-release wget git
+sudo /usr/share/postgresql-common/pgdg/apt.postgresql.org.sh -y
+sudo apt-get update -y
+sudo apt-get install -y postgresql-$PGVERSION postgresql-client-$PGVERSION postgresql-server-dev-$PGVERSION
+
+# Tune PostgreSQL the same way the vanilla postgresql/ benchmark does.
+memory=$(awk '/MemTotal/ {print $2}' /proc/meminfo)
+threads=$(nproc)
+cpus=$((threads / 2))
+shared_buffers=$((memory / 4))
+effective_cache_size=$((memory - memory / 4))
+max_worker_processes=$((threads + 15))
+
+sudo tee /etc/postgresql/$PGVERSION/main/conf.d/clickbench.conf <<EOF
+shared_buffers=${shared_buffers}kB
+max_worker_processes=${max_worker_processes}
+max_parallel_workers=${threads}
+max_parallel_maintenance_workers=${cpus}
+max_parallel_workers_per_gather=${cpus}
+max_wal_size=32GB
+work_mem=64MB
+effective_cache_size=${effective_cache_size}kB
+EOF
+
+# pg_deltax must be preloaded.
+if ! sudo grep -q "shared_preload_libraries.*pg_deltax" /etc/postgresql/$PGVERSION/main/postgresql.conf; then
+    sudo bash -c "echo \"shared_preload_libraries = 'pg_deltax'\" >> /etc/postgresql/$PGVERSION/main/postgresql.conf"
+fi
+
+# Rust toolchain (idempotent: rustup is a no-op if already installed).
+if ! command -v cargo >/dev/null 2>&1; then
+    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable
+fi
+# shellcheck disable=SC1091
+source "$HOME/.cargo/env"
+
+sudo apt-get install -y pkg-config libssl-dev libclang-dev clang
+
+cargo install --locked cargo-pgrx --version 0.17.0
+
+# Build and install pg_deltax against this PG.
+# - Fresh box: clone the public repo.
+# - Existing git checkout: leave it alone unless PG_DELTAX_REF is set.
+# - Existing non-git dir (e.g. rsync'd by `make deploy`): just build whatever
+#   is there. Don't try to `git fetch` — it would fail.
+if [ ! -d "$HOME/pg_deltax" ]; then
+    git clone "$PG_DELTAX_REPO" "$HOME/pg_deltax"
+fi
+cd "$HOME/pg_deltax"
+if [ -n "$PG_DELTAX_REF" ] && [ -d .git ]; then
+    git fetch --tags origin
+    git checkout "$PG_DELTAX_REF"
+fi
+cargo pgrx init --pg$PGVERSION "$PG_CONFIG"
+sudo env "PATH=$PATH" "RUSTUP_HOME=${RUSTUP_HOME:-$HOME/.rustup}" "CARGO_HOME=${CARGO_HOME:-$HOME/.cargo}" "PGRX_HOME=$HOME/.pgrx" \
+    cargo pgrx install --pg-config "$PG_CONFIG" --release
+
+sudo systemctl restart postgresql@$PGVERSION-main

pg_deltax/load

@@ -0,0 +1,46 @@
+#!/bin/bash
+# Drop+create the test DB, install pg_deltax, set up the partitioned hits table,
+# enable compression, and direct-backfill load the 100 hits_*.parquet files in
+# a single COPY ... WITH (FORMAT deltax_compress).
+set -eu
+
+PARQUET_DIR=/tmp/hits_parquet
+
+# Move parquet files into a path the postgres server user can read.
+sudo rm -rf "$PARQUET_DIR"
+sudo mkdir -p "$PARQUET_DIR"
+sudo mv hits_*.parquet "$PARQUET_DIR/"
+sudo chmod 644 "$PARQUET_DIR"/*.parquet
+
+# Recreate the DB so this script is idempotent. DROP wipes any prior
+# ALTER DATABASE settings so we start from postgresql.conf defaults
+# (work_mem=64MB, set by ./install in conf.d/clickbench.conf).
+sudo -u postgres psql -v ON_ERROR_STOP=1 -t -c "DROP DATABASE IF EXISTS test"
+sudo -u postgres psql -v ON_ERROR_STOP=1 -t -c "CREATE DATABASE test"
+
+# Bump work_mem for the load only. Direct backfill sorts each segment before
+# compressing; 1GB keeps larger segments in memory and shaves load time.
+# Reset before the query phase so the concurrent-QPS test (10 connections
+# each spawning parallel-scan workers) doesn't multiply this up to OOM.
+sudo -u postgres psql -v ON_ERROR_STOP=1 -t -c "ALTER DATABASE test SET work_mem TO '1GB'"
+
+sudo -u postgres psql -v ON_ERROR_STOP=1 -t test -c "CREATE EXTENSION pg_deltax"
+
+# Schema + partitioning + compression setup. mock_now pins the partition
+# boundary calculation to the dataset's epoch (the hits data is from 2013).
+sudo -u postgres psql -v ON_ERROR_STOP=1 -t test < create.sql
+sudo -u postgres psql -v ON_ERROR_STOP=1 -t test -c "SET pg_deltax.mock_now = '2013-07-01 12:00:00'; SELECT deltax_create_table('hits', 'eventtime', '3 days'::interval, 15)"
+sudo -u postgres psql -v ON_ERROR_STOP=1 -t test -c "SELECT deltax_enable_compression('hits', order_by => ARRAY['counterid', 'userid', 'eventtime'], segment_size => 30000)"
+
+# Direct backfill: load and compress in a single pass using FORMAT deltax_compress.
+sudo -u postgres psql -v ON_ERROR_STOP=1 test -c "COPY hits FROM '$PARQUET_DIR/hits_*.parquet' WITH (FORMAT deltax_compress)"
+
+sudo -u postgres psql -v ON_ERROR_STOP=1 -t test -c "VACUUM FREEZE ANALYZE hits"
+
+# Restore default work_mem (64MB) and disable JIT for the query phase.
+sudo -u postgres psql -v ON_ERROR_STOP=1 -t -c "ALTER DATABASE test RESET work_mem"
+sudo -u postgres psql -v ON_ERROR_STOP=1 -t -c "ALTER DATABASE test SET jit TO off"
+
+# Free disk: the source parquet files are no longer needed.
+sudo rm -rf "$PARQUET_DIR"
+sync

pg_deltax/queries.sql

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+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;

pg_deltax/query

@@ -0,0 +1,28 @@
+#!/bin/bash
+# Reads a SQL query from stdin, runs it via psql against the `test` DB.
+# Stdout: query result.
+# Stderr: query runtime in fractional seconds on the last line (parsed from
+# psql's `\timing` output).
+# Exit non-zero on error.
+set -e
+
+query=$(cat)
+
+out=$(printf '\\timing\n%s\n' "$query" | sudo -u postgres psql test -t 2>&1)
+status=$?
+
+if printf '%s\n' "$out" | grep -q '^ERROR\|psql: error'; then
+    printf '%s\n' "$out" >&2
+    exit 1
+fi
+
+printf '%s\n' "$out" | grep -v '^Time:'
+
+time_ms=$(printf '%s\n' "$out" | grep -oP 'Time:\s+\K[0-9]+\.[0-9]+' | tail -n1)
+if [ -z "$time_ms" ]; then
+    echo "no timing in psql output" >&2
+    exit 1
+fi
+awk -v ms="$time_ms" 'BEGIN { printf "%.3f\n", ms / 1000 }' >&2
+
+exit "$status"