From fbf826bf0c0799cc8c87e864e116a6fe1f0e860e Mon Sep 17 00:00:00 2001
From: support <vplesnila@gmail.com>
Date: Sun, 11 Oct 2026 16:45:57 +0200
Subject: [PATCH] 2026-10-11 14:45:57

---
 PostgreSQL/build_rdbms_01/Readme.md           |  55 ++++--
 PostgreSQL/build_rdbms_01/install_common.sh   | 106 +++++++++++
 PostgreSQL/build_rdbms_01/install_pg_cron.sh  |  25 ++-
 .../build_rdbms_01/install_pg_repack.sh       |  25 ++-
 .../build_rdbms_01/install_pg_stat_monitor.sh |  25 ++-
 .../install_pg_stat_statements.sh             |  25 ++-
 PostgreSQL/build_rdbms_01/install_pgaudit.sh  |  25 ++-
 PostgreSQL/build_rdbms_01/install_pgvector.sh |  25 ++-
 .../build_rdbms_01/install_postgresql.sh      |  36 +++-
 .../install_postgresql_extensions.sh          | 168 ++++++++++++++++--
 PostgreSQL/build_rdbms_01/install_set_user.sh |  25 ++-
 .../build_rdbms_01/install_timescaledb.sh     |  29 ++-
 12 files changed, 512 insertions(+), 57 deletions(-)

diff --git a/PostgreSQL/build_rdbms_01/Readme.md b/PostgreSQL/build_rdbms_01/Readme.md
index 6d36213..7564a27 100644
--- a/PostgreSQL/build_rdbms_01/Readme.md
+++ b/PostgreSQL/build_rdbms_01/Readme.md
@@ -16,6 +16,23 @@ Run the orchestrator with the PostgreSQL version to install:
 ./install_postgresql_extensions.sh 18.6
 ```
 
+The version may also be supplied explicitly with `-v` or `--version`:
+
+```bash
+./install_postgresql_extensions.sh --version 18.6
+```
+
+The orchestrator accepts a custom installation prefix and PostgreSQL `configure` options:
+
+```bash
+./install_postgresql_extensions.sh \
+  --version 18.6 \
+  --prefix /app/postgres/rdbms/18.6 \
+  --options="--with-ssl=openssl,--with-lz4"
+```
+
+`-p`/`--prefix` defaults to `/app/postgres/rdbms/<version>`. `-o`/`--options` accepts a comma-separated list of `configure` arguments; if omitted, the defaults are `--with-ssl=openssl,--with-lz4`. The prefix is passed to all component installers. If the selected prefix already exists, the orchestrator asks whether to recreate it; the prompt defaults to No, and non-interactive runs cancel safely.
+
 The orchestrator runs the installers in this order:
 
 1. PostgreSQL
@@ -32,27 +49,41 @@ After a successful run, the orchestrator:
 
 - Optionally updates `shared_preload_libraries` when `CONFIG_FILE` is set.
 - Prints the installed PostgreSQL and extension versions.
-- Creates `postgresql-<version>-engine.tar.gz` in the directory from which the command was launched.
+- Recreates `sources/<complete-version>/` before starting, where `<complete-version>` is the final directory name of the selected prefix (for example, prefix `/app/postgres/rdbms/18.6.3` uses `sources/18.6.3/`). Each successfully installed component's source tree is saved there with an executable `install_<postgresql-version>.sh` recipe containing that component's configure/build/install commands.
+- Creates `postgresql-<prefix-basename>-engine.tar.gz` in the directory from which the command was launched (for example, a prefix ending in `18.6.3` produces `postgresql-18.6.3-engine.tar.gz`).
 - Writes the complete process log to `postgresql-<version>-process.log` in that same directory.
+- Prints and logs the total execution duration in hours, minutes, and seconds.
 
 ## Individual installers
 
 Each component can also be installed independently. The PostgreSQL installation must already exist before running an extension installer.
 
 ```bash
-./install_postgresql.sh 18.6
-./install_pg_cron.sh 18.6
-./install_timescaledb.sh 18.6
-./install_pgaudit.sh 18.6
-./install_set_user.sh 18.6
-./install_pg_stat_statements.sh 18.6
-./install_pg_repack.sh 18.6
-./install_pg_stat_monitor.sh 18.6
-./install_pgvector.sh 18.6
+./install_postgresql.sh --version 18.6
+./install_pg_cron.sh --version 18.6
+./install_timescaledb.sh --version 18.6
+./install_pgaudit.sh --version 18.6
+./install_set_user.sh --version 18.6
+./install_pg_stat_statements.sh --version 18.6
+./install_pg_repack.sh --version 18.6
+./install_pg_stat_monitor.sh --version 18.6
+./install_pgvector.sh --version 18.6
 ```
 
+Each installer also accepts `-v 18.6` and the previous positional form (`./install_pg_cron.sh 18.6`). The all-in-one orchestrator passes its complete `--version` value to every component installer.
+
 All source downloads, extracted source trees, and build workspaces use the `tmp/` directory alongside the scripts by default. `install_postgresql.sh` recreates that staging directory and the versioned PostgreSQL prefix before downloading sources. Each extension installer recreates only the staging directory and preserves the PostgreSQL prefix.
 
+When the main orchestrator is invoked without `--help` or `-h`, it first recreates `tmp/` alongside the scripts. Help mode prints usage only and does not create, delete, or modify files.
+
+Every installer accepts `--help` or `-h`, for example:
+
+```bash
+./install_pgvector.sh --help
+```
+
+The generated `install_<version>.sh` recipes also accept `--help`/`-h` and can be run from their saved component source directory to repeat that component's configure/build/install steps.
+
 ## Script descriptions
 
 ### `install_postgresql_extensions.sh`
@@ -61,7 +92,7 @@ All-in-one entry point. It invokes every installer, applies optional configurati
 
 ### `install_postgresql.sh`
 
-Downloads, configures, builds, and installs PostgreSQL. The build uses:
+Downloads, configures, builds, and installs PostgreSQL. By default, `configure` uses:
 
 ```text
 --with-ssl=openssl
@@ -118,6 +149,8 @@ The following environment variables can override defaults:
 | Variable | Default | Purpose |
 | --- | --- | --- |
 | `POSTGRES_ROOT` | `/app/postgres/rdbms` | Root directory for versioned PostgreSQL installations |
+| `-p`, `--prefix` | `/app/postgres/rdbms/<version>` | Exact PostgreSQL installation prefix |
+| `-o`, `--options` | `--with-ssl=openssl,--with-lz4` | Comma-separated PostgreSQL `configure` options |
 | `STAGING_DIR` | `<script directory>/tmp` | Temporary source downloads, extracted source, and build directory |
 | `JOBS` | `nproc` result | Parallel build job count |
 | `CONFIG_FILE` | unset | PostgreSQL configuration file to update |
diff --git a/PostgreSQL/build_rdbms_01/install_common.sh b/PostgreSQL/build_rdbms_01/install_common.sh
index d6349d1..c3839d9 100644
--- a/PostgreSQL/build_rdbms_01/install_common.sh
+++ b/PostgreSQL/build_rdbms_01/install_common.sh
@@ -7,6 +7,51 @@ die() {
   exit 1
 }
 
+show_help() {
+  local script_name="$1"
+  local description="$2"
+  printf '%s\n' "$description"
+  printf 'Usage: %s -v|--version <postgresql-version>\n' "$script_name"
+  printf '       %s <postgresql-version>\n' "$script_name"
+  printf '       %s --help | -h\n' "$script_name"
+}
+
+parse_postgresql_version() {
+  local version=""
+  local positional_seen=0
+  while (($#)); do
+    case "$1" in
+      -v|--version)
+        (($# >= 2)) || die "$1 requires a PostgreSQL version"
+        [[ -n "$2" ]] || die "PostgreSQL version must not be empty"
+        [[ -z "$version" ]] || die "PostgreSQL version was specified more than once"
+        version="$2"
+        shift 2
+        ;;
+      --version=*)
+        [[ -n "${1#*=}" ]] || die "PostgreSQL version must not be empty"
+        [[ -z "$version" ]] || die "PostgreSQL version was specified more than once"
+        version="${1#*=}"
+        shift
+        ;;
+      -*)
+        die "unknown option: $1"
+        ;;
+      *)
+        (( positional_seen == 0 )) || die "unexpected argument: $1"
+        [[ -z "$version" ]] || die "PostgreSQL version was specified more than once"
+        version="$1"
+        positional_seen=1
+        shift
+        ;;
+    esac
+  done
+
+  [[ -n "$version" ]] || die "PostgreSQL version is required"
+  validate_postgresql_version "$version"
+  printf '%s\n' "$version"
+}
+
 require_tools() {
   local tool
   for tool in "$@"; do
@@ -60,6 +105,56 @@ reset_staging_dir() {
   mkdir -p "$staging_dir"
 }
 
+copy_install_source() {
+  local source_directory="$1"
+  local prefix="$2"
+  local source_name="$3"
+  local complete_version
+  complete_version="$(basename -- "$prefix")"
+  local sources_directory="$SCRIPT_DIR/sources/$complete_version"
+  local destination="$sources_directory/$source_name"
+
+  mkdir -p "$sources_directory"
+  rm -rf -- "$destination"
+  cp -a -- "$source_directory" "$destination"
+  printf '%s\n' "$destination"
+}
+
+write_install_recipe() {
+  local source_directory="$1"
+  local postgresql_version="$2"
+  local prefix="$3"
+  local configure_options="${4:-}"
+  local recipe="$source_directory/install_$postgresql_version.sh"
+
+  {
+    printf '#!/usr/bin/env bash\n\nset -Eeuo pipefail\n\n'
+    printf 'SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"\n'
+    printf 'readonly PREFIX=%q\n' "$prefix"
+    printf 'readonly POSTGRES_VERSION=%q\n' "$postgresql_version"
+    printf 'readonly POSTGRES_CONFIGURE_OPTIONS=%q\n' "$configure_options"
+    cat <<'RECIPE_HEADER'
+if [[ "${1:-}" == "--help" || "${1:-}" == "-h" ]]; then
+  printf 'Re-run the saved installation steps for PostgreSQL %s.\n' "$POSTGRES_VERSION"
+  printf 'Usage: %s\n' "$0"
+  printf '       %s --help | -h\n' "$0"
+  exit 0
+fi
+[[ $# -eq 0 ]] || {
+  printf 'Usage: %s [--help|-h]\n' "$0" >&2
+  exit 2
+}
+
+readonly PG_CONFIG="$PREFIX/bin/pg_config"
+readonly JOBS="${JOBS:-$(nproc)}"
+
+RECIPE_HEADER
+    cat
+  } > "$recipe"
+  chmod +x "$recipe"
+  printf 'Saved installation recipe: %s\n' "$recipe"
+}
+
 require_postgresql_installation() {
   local prefix="$1"
   local pg_config="$prefix/bin/pg_config"
@@ -81,3 +176,14 @@ download_source() {
   tar -xzf "$archive" -C "$staging_dir"
   [[ -d "$source_dir" ]] || die "source directory was not created: $source_dir"
 }
+
+if [[ "${BASH_SOURCE[0]}" == "$0" ]]; then
+  if [[ "${1:-}" == "--help" || "${1:-}" == "-h" ]]; then
+    printf 'Shared helper functions used by PostgreSQL component installers.\n'
+    printf 'This file is sourced by the install scripts and does not install a component.\n'
+    exit 0
+  fi
+  printf 'This helper is not an installer; run a component installer with <postgresql-version>.\n' >&2
+  printf 'Usage: %s --help | -h\n' "$0" >&2
+  exit 2
+fi
diff --git a/PostgreSQL/build_rdbms_01/install_pg_cron.sh b/PostgreSQL/build_rdbms_01/install_pg_cron.sh
index eca8d1b..98068ab 100644
--- a/PostgreSQL/build_rdbms_01/install_pg_cron.sh
+++ b/PostgreSQL/build_rdbms_01/install_pg_cron.sh
@@ -10,11 +10,16 @@ readonly STAGING_DIR="${STAGING_DIR:-$SCRIPT_DIR/tmp}"
 readonly POSTGRES_ROOT="${POSTGRES_ROOT:-/app/postgres/rdbms}"
 readonly PG_CRON_REPOSITORY="${PG_CRON_REPOSITORY:-citusdata/pg_cron}"
 
-[[ $# -eq 1 ]] || die "Usage: $0 <postgresql-version>"
-readonly POSTGRES_VERSION="$1"
+if [[ "${1:-}" == "--help" || "${1:-}" == "-h" ]]; then
+  show_help "$0" "Build and install pg_cron for an existing PostgreSQL installation."
+  exit 0
+fi
+
+POSTGRES_VERSION="$(parse_postgresql_version "$@")"
+readonly POSTGRES_VERSION
 validate_postgresql_version "$POSTGRES_VERSION"
 require_tools curl tar make
-readonly PREFIX="$POSTGRES_ROOT/$POSTGRES_VERSION"
+readonly PREFIX="${PREFIX:-$POSTGRES_ROOT/$POSTGRES_VERSION}"
 readonly PG_CONFIG="$PREFIX/bin/pg_config"
 require_postgresql_installation "$PREFIX"
 reset_staging_dir "$STAGING_DIR"
@@ -30,3 +35,17 @@ cd "$PG_CRON_DIR"
 make -j"${JOBS:-$(nproc)}" PG_CONFIG="$PG_CONFIG"
 make install PG_CONFIG="$PG_CONFIG"
 test -x "$PREFIX/lib/pg_cron.so"
+
+readonly SAVED_SOURCE_DIR="$(copy_install_source "$PG_CRON_DIR" "$PREFIX" "pg_cron-$PG_CRON_TAG")"
+write_install_recipe "$SAVED_SOURCE_DIR" "$POSTGRES_VERSION" "$PREFIX" <<'RECIPE'
+cd "$SCRIPT_DIR"
+
+# Configure
+# pg_cron uses PG_CONFIG directly and does not require a separate configure step.
+
+# Make
+make -j"$JOBS" PG_CONFIG="$PG_CONFIG"
+
+# Make install
+make install PG_CONFIG="$PG_CONFIG"
+RECIPE
diff --git a/PostgreSQL/build_rdbms_01/install_pg_repack.sh b/PostgreSQL/build_rdbms_01/install_pg_repack.sh
index 6a66bf7..c0574f4 100644
--- a/PostgreSQL/build_rdbms_01/install_pg_repack.sh
+++ b/PostgreSQL/build_rdbms_01/install_pg_repack.sh
@@ -10,11 +10,16 @@ readonly STAGING_DIR="${STAGING_DIR:-$SCRIPT_DIR/tmp}"
 readonly POSTGRES_ROOT="${POSTGRES_ROOT:-/app/postgres/rdbms}"
 readonly PG_REPACK_REPOSITORY="${PG_REPACK_REPOSITORY:-reorg/pg_repack}"
 
-[[ $# -eq 1 ]] || die "Usage: $0 <postgresql-version>"
-readonly POSTGRES_VERSION="$1"
+if [[ "${1:-}" == "--help" || "${1:-}" == "-h" ]]; then
+  show_help "$0" "Build and install pg_repack for an existing PostgreSQL installation."
+  exit 0
+fi
+
+POSTGRES_VERSION="$(parse_postgresql_version "$@")"
+readonly POSTGRES_VERSION
 validate_postgresql_version "$POSTGRES_VERSION"
 require_tools curl tar make
-readonly PREFIX="$POSTGRES_ROOT/$POSTGRES_VERSION"
+readonly PREFIX="${PREFIX:-$POSTGRES_ROOT/$POSTGRES_VERSION}"
 readonly PG_CONFIG="$PREFIX/bin/pg_config"
 require_postgresql_installation "$PREFIX"
 reset_staging_dir "$STAGING_DIR"
@@ -31,3 +36,17 @@ make -j"${JOBS:-$(nproc)}" PG_CONFIG="$PG_CONFIG"
 make install PG_CONFIG="$PG_CONFIG"
 test -x "$PREFIX/bin/pg_repack"
 test -f "$PREFIX/share/extension/pg_repack.control"
+
+readonly SAVED_SOURCE_DIR="$(copy_install_source "$PG_REPACK_DIR" "$PREFIX" "pg_repack-$PG_REPACK_TAG")"
+write_install_recipe "$SAVED_SOURCE_DIR" "$POSTGRES_VERSION" "$PREFIX" <<'RECIPE'
+cd "$SCRIPT_DIR"
+
+# Configure
+# pg_repack uses PG_CONFIG directly and does not require a separate configure step.
+
+# Make
+make -j"$JOBS" PG_CONFIG="$PG_CONFIG"
+
+# Make install
+make install PG_CONFIG="$PG_CONFIG"
+RECIPE
diff --git a/PostgreSQL/build_rdbms_01/install_pg_stat_monitor.sh b/PostgreSQL/build_rdbms_01/install_pg_stat_monitor.sh
index 172f779..24be465 100644
--- a/PostgreSQL/build_rdbms_01/install_pg_stat_monitor.sh
+++ b/PostgreSQL/build_rdbms_01/install_pg_stat_monitor.sh
@@ -10,11 +10,16 @@ readonly STAGING_DIR="${STAGING_DIR:-$SCRIPT_DIR/tmp}"
 readonly POSTGRES_ROOT="${POSTGRES_ROOT:-/app/postgres/rdbms}"
 readonly PG_STAT_MONITOR_REPOSITORY="${PG_STAT_MONITOR_REPOSITORY:-percona/pg_stat_monitor}"
 
-[[ $# -eq 1 ]] || die "Usage: $0 <postgresql-version>"
-readonly POSTGRES_VERSION="$1"
+if [[ "${1:-}" == "--help" || "${1:-}" == "-h" ]]; then
+  show_help "$0" "Build and install pg_stat_monitor for an existing PostgreSQL installation."
+  exit 0
+fi
+
+POSTGRES_VERSION="$(parse_postgresql_version "$@")"
+readonly POSTGRES_VERSION
 validate_postgresql_version "$POSTGRES_VERSION"
 require_tools curl tar make
-readonly PREFIX="$POSTGRES_ROOT/$POSTGRES_VERSION"
+readonly PREFIX="${PREFIX:-$POSTGRES_ROOT/$POSTGRES_VERSION}"
 readonly PG_CONFIG="$PREFIX/bin/pg_config"
 require_postgresql_installation "$PREFIX"
 reset_staging_dir "$STAGING_DIR"
@@ -31,3 +36,17 @@ make -j"${JOBS:-$(nproc)}" PG_CONFIG="$PG_CONFIG"
 make install PG_CONFIG="$PG_CONFIG"
 test -x "$PREFIX/lib/pg_stat_monitor.so"
 test -f "$PREFIX/share/extension/pg_stat_monitor.control"
+
+readonly SAVED_SOURCE_DIR="$(copy_install_source "$PG_STAT_MONITOR_DIR" "$PREFIX" "pg_stat_monitor-$PG_STAT_MONITOR_TAG")"
+write_install_recipe "$SAVED_SOURCE_DIR" "$POSTGRES_VERSION" "$PREFIX" <<'RECIPE'
+cd "$SCRIPT_DIR"
+
+# Configure
+# pg_stat_monitor uses PGXS directly and does not require a separate configure step.
+
+# Make
+make -j"$JOBS" PG_CONFIG="$PG_CONFIG"
+
+# Make install
+make install PG_CONFIG="$PG_CONFIG"
+RECIPE
diff --git a/PostgreSQL/build_rdbms_01/install_pg_stat_statements.sh b/PostgreSQL/build_rdbms_01/install_pg_stat_statements.sh
index f558d85..b711edc 100644
--- a/PostgreSQL/build_rdbms_01/install_pg_stat_statements.sh
+++ b/PostgreSQL/build_rdbms_01/install_pg_stat_statements.sh
@@ -9,11 +9,16 @@ source "$SCRIPT_DIR/install_common.sh"
 readonly STAGING_DIR="${STAGING_DIR:-$SCRIPT_DIR/tmp}"
 readonly POSTGRES_ROOT="${POSTGRES_ROOT:-/app/postgres/rdbms}"
 
-[[ $# -eq 1 ]] || die "Usage: $0 <postgresql-version>"
-readonly POSTGRES_VERSION="$1"
+if [[ "${1:-}" == "--help" || "${1:-}" == "-h" ]]; then
+  show_help "$0" "Build and install pg_stat_statements from matching PostgreSQL source."
+  exit 0
+fi
+
+POSTGRES_VERSION="$(parse_postgresql_version "$@")"
+readonly POSTGRES_VERSION
 validate_postgresql_version "$POSTGRES_VERSION"
 require_tools curl tar make
-readonly PREFIX="$POSTGRES_ROOT/$POSTGRES_VERSION"
+readonly PREFIX="${PREFIX:-$POSTGRES_ROOT/$POSTGRES_VERSION}"
 readonly PG_CONFIG="$PREFIX/bin/pg_config"
 require_postgresql_installation "$PREFIX"
 reset_staging_dir "$STAGING_DIR"
@@ -30,3 +35,17 @@ make -C "$POSTGRES_SOURCE/contrib/pg_stat_statements" \
 make -C "$POSTGRES_SOURCE/contrib/pg_stat_statements" \
   install USE_PGXS=1 PG_CONFIG="$PG_CONFIG"
 grep -E '^default_version' "$PREFIX/share/extension/pg_stat_statements.control"
+
+readonly SAVED_SOURCE_DIR="$(copy_install_source "$POSTGRES_SOURCE/contrib/pg_stat_statements" "$PREFIX" "pg_stat_statements-$POSTGRES_VERSION")"
+write_install_recipe "$SAVED_SOURCE_DIR" "$POSTGRES_VERSION" "$PREFIX" <<'RECIPE'
+cd "$SCRIPT_DIR"
+
+# Configure
+# pg_stat_statements uses PGXS directly and does not require a separate configure step.
+
+# Make
+make -j"$JOBS" USE_PGXS=1 PG_CONFIG="$PG_CONFIG"
+
+# Make install
+make install USE_PGXS=1 PG_CONFIG="$PG_CONFIG"
+RECIPE
diff --git a/PostgreSQL/build_rdbms_01/install_pgaudit.sh b/PostgreSQL/build_rdbms_01/install_pgaudit.sh
index fe82f32..41947af 100644
--- a/PostgreSQL/build_rdbms_01/install_pgaudit.sh
+++ b/PostgreSQL/build_rdbms_01/install_pgaudit.sh
@@ -10,11 +10,16 @@ readonly STAGING_DIR="${STAGING_DIR:-$SCRIPT_DIR/tmp}"
 readonly POSTGRES_ROOT="${POSTGRES_ROOT:-/app/postgres/rdbms}"
 readonly PGAUDIT_REPOSITORY="${PGAUDIT_REPOSITORY:-pgaudit/pgaudit}"
 
-[[ $# -eq 1 ]] || die "Usage: $0 <postgresql-version>"
-readonly POSTGRES_VERSION="$1"
+if [[ "${1:-}" == "--help" || "${1:-}" == "-h" ]]; then
+  show_help "$0" "Build and install pgAudit for an existing PostgreSQL installation."
+  exit 0
+fi
+
+POSTGRES_VERSION="$(parse_postgresql_version "$@")"
+readonly POSTGRES_VERSION
 validate_postgresql_version "$POSTGRES_VERSION"
 require_tools curl tar make
-readonly PREFIX="$POSTGRES_ROOT/$POSTGRES_VERSION"
+readonly PREFIX="${PREFIX:-$POSTGRES_ROOT/$POSTGRES_VERSION}"
 readonly PG_CONFIG="$PREFIX/bin/pg_config"
 require_postgresql_installation "$PREFIX"
 reset_staging_dir "$STAGING_DIR"
@@ -30,3 +35,17 @@ cd "$PGAUDIT_DIR"
 make -j"${JOBS:-$(nproc)}" USE_PGXS=1 PG_CONFIG="$PG_CONFIG"
 make install USE_PGXS=1 PG_CONFIG="$PG_CONFIG"
 test -x "$PREFIX/lib/pgaudit.so"
+
+readonly SAVED_SOURCE_DIR="$(copy_install_source "$PGAUDIT_DIR" "$PREFIX" "pgaudit-$PGAUDIT_TAG")"
+write_install_recipe "$SAVED_SOURCE_DIR" "$POSTGRES_VERSION" "$PREFIX" <<'RECIPE'
+cd "$SCRIPT_DIR"
+
+# Configure
+# pgAudit uses PGXS directly and does not require a separate configure step.
+
+# Make
+make -j"$JOBS" USE_PGXS=1 PG_CONFIG="$PG_CONFIG"
+
+# Make install
+make install USE_PGXS=1 PG_CONFIG="$PG_CONFIG"
+RECIPE
diff --git a/PostgreSQL/build_rdbms_01/install_pgvector.sh b/PostgreSQL/build_rdbms_01/install_pgvector.sh
index 63b93bc..969612b 100644
--- a/PostgreSQL/build_rdbms_01/install_pgvector.sh
+++ b/PostgreSQL/build_rdbms_01/install_pgvector.sh
@@ -10,11 +10,16 @@ readonly STAGING_DIR="${STAGING_DIR:-$SCRIPT_DIR/tmp}"
 readonly POSTGRES_ROOT="${POSTGRES_ROOT:-/app/postgres/rdbms}"
 readonly PGVECTOR_REPOSITORY="${PGVECTOR_REPOSITORY:-pgvector/pgvector}"
 
-[[ $# -eq 1 ]] || die "Usage: $0 <postgresql-version>"
-readonly POSTGRES_VERSION="$1"
+if [[ "${1:-}" == "--help" || "${1:-}" == "-h" ]]; then
+  show_help "$0" "Build and install pgvector for an existing PostgreSQL installation."
+  exit 0
+fi
+
+POSTGRES_VERSION="$(parse_postgresql_version "$@")"
+readonly POSTGRES_VERSION
 validate_postgresql_version "$POSTGRES_VERSION"
 require_tools curl tar make
-readonly PREFIX="$POSTGRES_ROOT/$POSTGRES_VERSION"
+readonly PREFIX="${PREFIX:-$POSTGRES_ROOT/$POSTGRES_VERSION}"
 readonly PG_CONFIG="$PREFIX/bin/pg_config"
 require_postgresql_installation "$PREFIX"
 reset_staging_dir "$STAGING_DIR"
@@ -32,3 +37,17 @@ make -j"${JOBS:-$(nproc)}" PG_CONFIG="$PG_CONFIG"
 make install PG_CONFIG="$PG_CONFIG"
 test -f "$PREFIX/lib/vector.so"
 test -f "$PREFIX/share/extension/vector.control"
+
+readonly SAVED_SOURCE_DIR="$(copy_install_source "$PGVECTOR_DIR" "$PREFIX" "pgvector-$PGVECTOR_TAG")"
+write_install_recipe "$SAVED_SOURCE_DIR" "$POSTGRES_VERSION" "$PREFIX" <<'RECIPE'
+cd "$SCRIPT_DIR"
+
+# Configure
+# pgvector uses PGXS directly and does not require a separate configure step.
+
+# Make
+make -j"$JOBS" PG_CONFIG="$PG_CONFIG"
+
+# Make install
+make install PG_CONFIG="$PG_CONFIG"
+RECIPE
diff --git a/PostgreSQL/build_rdbms_01/install_postgresql.sh b/PostgreSQL/build_rdbms_01/install_postgresql.sh
index 77bc294..1cd0db8 100644
--- a/PostgreSQL/build_rdbms_01/install_postgresql.sh
+++ b/PostgreSQL/build_rdbms_01/install_postgresql.sh
@@ -9,12 +9,18 @@ source "$SCRIPT_DIR/install_common.sh"
 readonly STAGING_DIR="${STAGING_DIR:-$SCRIPT_DIR/tmp}"
 readonly POSTGRES_ROOT="${POSTGRES_ROOT:-/app/postgres/rdbms}"
 
-[[ $# -eq 1 ]] || die "Usage: $0 <postgresql-version>"
-readonly POSTGRES_VERSION="$1"
+if [[ "${1:-}" == "--help" || "${1:-}" == "-h" ]]; then
+  show_help "$0" "Build and install PostgreSQL from source."
+  exit 0
+fi
+
+POSTGRES_VERSION="$(parse_postgresql_version "$@")"
+readonly POSTGRES_VERSION
 validate_postgresql_version "$POSTGRES_VERSION"
 require_tools curl tar make gcc
 
-readonly PREFIX="$POSTGRES_ROOT/$POSTGRES_VERSION"
+readonly PREFIX="${PREFIX:-$POSTGRES_ROOT/$POSTGRES_VERSION}"
+readonly POSTGRES_CONFIGURE_OPTIONS="${POSTGRES_CONFIGURE_OPTIONS:---with-ssl=openssl,--with-lz4}"
 readonly PG_BIN="$PREFIX/bin"
 readonly PG_CONFIG="$PG_BIN/pg_config"
 [[ "$PREFIX" != "/" ]] || die "PREFIX must not be the filesystem root"
@@ -31,13 +37,33 @@ curl -fL --retry 3 --retry-delay 2 \
 tar -xzf "$POSTGRES_ARCHIVE" -C "$STAGING_DIR"
 
 cd "$POSTGRES_SOURCE"
+[[ "$POSTGRES_CONFIGURE_OPTIONS" != ,* &&
+  "$POSTGRES_CONFIGURE_OPTIONS" != *, &&
+  "$POSTGRES_CONFIGURE_OPTIONS" != *,,* ]] || die "configure options must be a non-empty comma-separated list"
+IFS=',' read -r -a CONFIGURE_OPTIONS <<< "${POSTGRES_CONFIGURE_OPTIONS:-}"
 ./configure \
   --prefix="$PREFIX" \
-  --with-ssl=openssl \
-  --with-lz4
+  "${CONFIGURE_OPTIONS[@]}"
 make -j"${JOBS:-$(nproc)}"
 make install
 
 printf '\nVerification:\n'
 "$PG_BIN/postgres" --version
 "$PG_CONFIG" --version
+
+readonly SAVED_SOURCE_DIR="$(copy_install_source "$POSTGRES_SOURCE" "$PREFIX" "postgresql-$POSTGRES_VERSION")"
+write_install_recipe "$SAVED_SOURCE_DIR" "$POSTGRES_VERSION" "$PREFIX" "$POSTGRES_CONFIGURE_OPTIONS" <<'RECIPE'
+cd "$SCRIPT_DIR"
+
+# Configure
+IFS=',' read -r -a CONFIGURE_OPTIONS <<< "$POSTGRES_CONFIGURE_OPTIONS"
+./configure \
+  --prefix="$PREFIX" \
+  "${CONFIGURE_OPTIONS[@]}"
+
+# Make
+make -j"$JOBS"
+
+# Make install
+make install
+RECIPE
diff --git a/PostgreSQL/build_rdbms_01/install_postgresql_extensions.sh b/PostgreSQL/build_rdbms_01/install_postgresql_extensions.sh
index cc2c802..379d746 100644
--- a/PostgreSQL/build_rdbms_01/install_postgresql_extensions.sh
+++ b/PostgreSQL/build_rdbms_01/install_postgresql_extensions.sh
@@ -5,31 +5,157 @@ set -Eeuo pipefail
 SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
 readonly INVOCATION_DIR="$PWD"
 
-[[ $# -eq 1 ]] || {
-  printf 'Usage: %s <postgresql-version>\n' "$0" >&2
-  exit 2
+usage() {
+  printf 'Usage: %s [-v|--version <postgresql-version>] [-p|--prefix <path>] [-o|--options <configure-options>]\n' "$0"
+  printf '       %s [-p|--prefix <path>] [-o|--options <configure-options>] <postgresql-version>\n' "$0"
+  printf '       %s --help | -h\n' "$0"
 }
-readonly POSTGRES_VERSION="$1"
+
+for argument in "$@"; do
+  if [[ "$argument" == "--help" || "$argument" == "-h" ]]; then
+    usage
+    exit 0
+  fi
+done
+
+POSTGRES_VERSION=""
+PREFIX_OVERRIDE=""
+CONFIGURE_OPTIONS="--with-ssl=openssl,--with-lz4"
+while (($#)); do
+  case "$1" in
+    -p|--prefix)
+      (($# >= 2)) || { printf 'ERROR: %s requires a path\n' "$1" >&2; exit 2; }
+      [[ -n "$2" ]] || { printf 'ERROR: prefix path must not be empty\n' >&2; exit 2; }
+      PREFIX_OVERRIDE="$2"
+      shift 2
+      ;;
+    -v|--version)
+      (($# >= 2)) || { printf 'ERROR: %s requires a PostgreSQL version\n' "$1" >&2; exit 2; }
+      [[ -n "$2" ]] || { printf 'ERROR: PostgreSQL version must not be empty\n' >&2; exit 2; }
+      [[ -z "$POSTGRES_VERSION" ]] || { printf 'ERROR: PostgreSQL version was specified more than once\n' >&2; exit 2; }
+      POSTGRES_VERSION="$2"
+      shift 2
+      ;;
+    --prefix=*)
+      PREFIX_OVERRIDE="${1#*=}"
+      [[ -n "$PREFIX_OVERRIDE" ]] || { printf 'ERROR: prefix path must not be empty\n' >&2; exit 2; }
+      shift
+      ;;
+    --version=*)
+      [[ -n "${1#*=}" ]] || { printf 'ERROR: PostgreSQL version must not be empty\n' >&2; exit 2; }
+      [[ -z "$POSTGRES_VERSION" ]] || { printf 'ERROR: PostgreSQL version was specified more than once\n' >&2; exit 2; }
+      POSTGRES_VERSION="${1#*=}"
+      shift
+      ;;
+    -o|--options)
+      (($# >= 2)) || { printf 'ERROR: %s requires a comma-separated option list\n' "$1" >&2; exit 2; }
+      CONFIGURE_OPTIONS="$2"
+      shift 2
+      ;;
+    --options=*)
+      CONFIGURE_OPTIONS="${1#*=}"
+      shift
+      ;;
+    -*)
+      printf 'ERROR: unknown option: %s\n' "$1" >&2
+      usage >&2
+      exit 2
+      ;;
+    *)
+      [[ -z "$POSTGRES_VERSION" ]] || { printf 'ERROR: unexpected argument: %s\n' "$1" >&2; usage >&2; exit 2; }
+      POSTGRES_VERSION="$1"
+      shift
+      ;;
+  esac
+done
+
+[[ -n "$POSTGRES_VERSION" ]] || { usage >&2; exit 2; }
+[[ "$POSTGRES_VERSION" =~ ^[0-9]+\.[0-9]+([.][0-9]+)?$ ]] || {
+  printf 'ERROR: invalid PostgreSQL version: %s\n' "$POSTGRES_VERSION" >&2
+  exit 1
+}
+SECONDS=0
+
+readonly POSTGRES_ROOT="${POSTGRES_ROOT:-/app/postgres/rdbms}"
+PREFIX="${PREFIX_OVERRIDE:-$POSTGRES_ROOT/$POSTGRES_VERSION}"
+readonly POSTGRES_CONFIGURE_OPTIONS="$CONFIGURE_OPTIONS"
+[[ "$PREFIX" == /* && "$PREFIX" != "/" && "$PREFIX" != "$POSTGRES_ROOT" ]] || {
+  printf 'ERROR: prefix must be an absolute version-specific directory, not / or POSTGRES_ROOT itself: %s\n' "$PREFIX" >&2
+  exit 1
+}
+readonly NORMALIZED_PREFIX="$(realpath -m -- "$PREFIX")"
+readonly NORMALIZED_POSTGRES_ROOT="$(realpath -m -- "$POSTGRES_ROOT")"
+[[ "$NORMALIZED_PREFIX" != "/" && "$NORMALIZED_PREFIX" != "$NORMALIZED_POSTGRES_ROOT" ]] || {
+  printf 'ERROR: prefix must not resolve to / or POSTGRES_ROOT: %s\n' "$PREFIX" >&2
+  exit 1
+}
+readonly PREFIX="$NORMALIZED_PREFIX"
+if [[ -n "$POSTGRES_CONFIGURE_OPTIONS" ]]; then
+  [[ "$POSTGRES_CONFIGURE_OPTIONS" != ,* &&
+    "$POSTGRES_CONFIGURE_OPTIONS" != *, &&
+    "$POSTGRES_CONFIGURE_OPTIONS" != *,,* ]] || {
+    printf 'ERROR: configure options must be a non-empty comma-separated list\n' >&2
+    exit 2
+  }
+  IFS=',' read -r -a parsed_configure_options <<< "$POSTGRES_CONFIGURE_OPTIONS"
+  for option in "${parsed_configure_options[@]}"; do
+    [[ "$option" == -* && "$option" != "-" ]] || {
+      printf 'ERROR: invalid PostgreSQL configure option: %s\n' "$option" >&2
+      exit 2
+    }
+  done
+fi
+
+readonly PREFIX_VERSION="$(basename -- "$PREFIX")"
+readonly SOURCES_DIR="$SCRIPT_DIR/sources/$PREFIX_VERSION"
+readonly STAGING_DIR="$SCRIPT_DIR/tmp"
 readonly PROCESS_LOG="$INVOCATION_DIR/postgresql-$POSTGRES_VERSION-process.log"
-readonly ENGINE_ARCHIVE="$INVOCATION_DIR/postgresql-$POSTGRES_VERSION-engine.tar.gz"
+readonly ENGINE_ARCHIVE="$INVOCATION_DIR/postgresql-$PREFIX_VERSION-engine.tar.gz"
+
+[[ "$STAGING_DIR" != "/" ]] || {
+  printf 'ERROR: staging directory must not be the filesystem root\n' >&2
+  exit 1
+}
+rm -rf -- "$STAGING_DIR"
+mkdir -p "$STAGING_DIR"
+
+export PREFIX POSTGRES_CONFIGURE_OPTIONS
+
+if [[ -e "$PREFIX" || -L "$PREFIX" ]]; then
+  printf 'WARNING: PostgreSQL installation directory already exists: %s\n' "$PREFIX" >&2
+  if [[ ! -t 0 ]]; then
+    printf 'Non-interactive input; defaulting to No and exiting without changes.\n' >&2
+    exit 0
+  fi
+
+  read -r -p "Recreate this directory and continue? [y/N] " response || response=""
+  case "$response" in
+    Y|y) printf 'Confirmed: %s will be recreated.\n' "$PREFIX" ;;
+    *) printf 'Installation cancelled; existing directory was left unchanged.\n'; exit 0 ;;
+  esac
+fi
 
 exec > >(tee "$PROCESS_LOG") 2>&1
 
 printf 'Installation started: %s\n' "$(date -Is)"
 printf 'Invocation directory: %s\n' "$INVOCATION_DIR"
+printf 'PostgreSQL version: %s\n' "$POSTGRES_VERSION"
+printf 'Install prefix: %s\n' "$PREFIX"
+printf 'PostgreSQL configure options: %s\n' "${POSTGRES_CONFIGURE_OPTIONS:-<none>}"
+printf 'Recreating source archive directory: %s\n' "$SOURCES_DIR"
+rm -rf -- "$SOURCES_DIR"
+mkdir -p "$SOURCES_DIR"
 
-"$SCRIPT_DIR/install_postgresql.sh" "$POSTGRES_VERSION"
-"$SCRIPT_DIR/install_pg_cron.sh" "$POSTGRES_VERSION"
-"$SCRIPT_DIR/install_timescaledb.sh" "$POSTGRES_VERSION"
-"$SCRIPT_DIR/install_pgaudit.sh" "$POSTGRES_VERSION"
-"$SCRIPT_DIR/install_set_user.sh" "$POSTGRES_VERSION"
-"$SCRIPT_DIR/install_pg_stat_statements.sh" "$POSTGRES_VERSION"
-"$SCRIPT_DIR/install_pg_repack.sh" "$POSTGRES_VERSION"
-"$SCRIPT_DIR/install_pg_stat_monitor.sh" "$POSTGRES_VERSION"
-"$SCRIPT_DIR/install_pgvector.sh" "$POSTGRES_VERSION"
+"$SCRIPT_DIR/install_postgresql.sh" --version "$POSTGRES_VERSION"
+"$SCRIPT_DIR/install_pg_cron.sh" --version "$POSTGRES_VERSION"
+"$SCRIPT_DIR/install_timescaledb.sh" --version "$POSTGRES_VERSION"
+"$SCRIPT_DIR/install_pgaudit.sh" --version "$POSTGRES_VERSION"
+"$SCRIPT_DIR/install_set_user.sh" --version "$POSTGRES_VERSION"
+"$SCRIPT_DIR/install_pg_stat_statements.sh" --version "$POSTGRES_VERSION"
+"$SCRIPT_DIR/install_pg_repack.sh" --version "$POSTGRES_VERSION"
+"$SCRIPT_DIR/install_pg_stat_monitor.sh" --version "$POSTGRES_VERSION"
+"$SCRIPT_DIR/install_pgvector.sh" --version "$POSTGRES_VERSION"
 
-readonly POSTGRES_ROOT="${POSTGRES_ROOT:-/app/postgres/rdbms}"
-readonly PREFIX="$POSTGRES_ROOT/$POSTGRES_VERSION"
 readonly CONFIG_FILE="${CONFIG_FILE:-}"
 readonly SHARED_PRELOAD_LIBRARIES="pg_cron,timescaledb,pgaudit,pg_stat_statements,pg_stat_monitor"
 
@@ -74,6 +200,7 @@ extension_version() {
 
 printf '\nInstalled products and extensions:\n'
 printf '  PostgreSQL: %s\n' "$("$PREFIX/bin/pg_config" --version | sed 's/^PostgreSQL //')"
+printf '  PostgreSQL configure options: %s\n' "${POSTGRES_CONFIGURE_OPTIONS//,/ }"
 printf '  pg_cron: %s\n' "$(extension_version pg_cron)"
 printf '  TimescaleDB: %s\n' "$(extension_version timescaledb)"
 printf '  pgaudit: %s\n' "$(extension_version pgaudit)"
@@ -85,7 +212,14 @@ printf '  pgvector: %s\n' "$(extension_version vector)"
 printf "  shared_preload_libraries = '%s'\n" "$SHARED_PRELOAD_LIBRARIES"
 
 rm -f -- "$ENGINE_ARCHIVE"
-tar -czf "$ENGINE_ARCHIVE" -C "$POSTGRES_ROOT" "$POSTGRES_VERSION"
+tar -czf "$ENGINE_ARCHIVE" -C "$(dirname -- "$PREFIX")" "$(basename -- "$PREFIX")"
 printf '\nCreated engine archive: %s\n' "$ENGINE_ARCHIVE"
 printf 'Archive size: %s\n' "$(du -h "$ENGINE_ARCHIVE" | awk '{print $1}')"
+elapsed_seconds=$SECONDS
+elapsed_hours=$((elapsed_seconds / 3600))
+elapsed_minutes=$(((elapsed_seconds % 3600) / 60))
+elapsed_remainder=$((elapsed_seconds % 60))
+printf 'Total execution time: %dh %dm %ds\n' \
+  "$elapsed_hours" "$elapsed_minutes" "$elapsed_remainder"
 printf 'Installation completed: %s\n' "$(date -Is)"
+exit 0
diff --git a/PostgreSQL/build_rdbms_01/install_set_user.sh b/PostgreSQL/build_rdbms_01/install_set_user.sh
index 5738a63..4ff09f4 100644
--- a/PostgreSQL/build_rdbms_01/install_set_user.sh
+++ b/PostgreSQL/build_rdbms_01/install_set_user.sh
@@ -10,11 +10,16 @@ readonly STAGING_DIR="${STAGING_DIR:-$SCRIPT_DIR/tmp}"
 readonly POSTGRES_ROOT="${POSTGRES_ROOT:-/app/postgres/rdbms}"
 readonly SET_USER_REPOSITORY="${SET_USER_REPOSITORY:-pgaudit/set_user}"
 
-[[ $# -eq 1 ]] || die "Usage: $0 <postgresql-version>"
-readonly POSTGRES_VERSION="$1"
+if [[ "${1:-}" == "--help" || "${1:-}" == "-h" ]]; then
+  show_help "$0" "Build and install set_user for an existing PostgreSQL installation."
+  exit 0
+fi
+
+POSTGRES_VERSION="$(parse_postgresql_version "$@")"
+readonly POSTGRES_VERSION
 validate_postgresql_version "$POSTGRES_VERSION"
 require_tools curl tar make
-readonly PREFIX="$POSTGRES_ROOT/$POSTGRES_VERSION"
+readonly PREFIX="${PREFIX:-$POSTGRES_ROOT/$POSTGRES_VERSION}"
 readonly PG_CONFIG="$PREFIX/bin/pg_config"
 require_postgresql_installation "$PREFIX"
 reset_staging_dir "$STAGING_DIR"
@@ -30,3 +35,17 @@ cd "$SET_USER_DIR"
 make -j"${JOBS:-$(nproc)}" PG_CONFIG="$PG_CONFIG"
 make install PG_CONFIG="$PG_CONFIG"
 test -x "$PREFIX/lib/set_user.so"
+
+readonly SAVED_SOURCE_DIR="$(copy_install_source "$SET_USER_DIR" "$PREFIX" "set_user-$SET_USER_TAG")"
+write_install_recipe "$SAVED_SOURCE_DIR" "$POSTGRES_VERSION" "$PREFIX" <<'RECIPE'
+cd "$SCRIPT_DIR"
+
+# Configure
+# set_user uses PGXS directly and does not require a separate configure step.
+
+# Make
+make -j"$JOBS" PG_CONFIG="$PG_CONFIG"
+
+# Make install
+make install PG_CONFIG="$PG_CONFIG"
+RECIPE
diff --git a/PostgreSQL/build_rdbms_01/install_timescaledb.sh b/PostgreSQL/build_rdbms_01/install_timescaledb.sh
index d488e5f..e7dbb64 100644
--- a/PostgreSQL/build_rdbms_01/install_timescaledb.sh
+++ b/PostgreSQL/build_rdbms_01/install_timescaledb.sh
@@ -10,11 +10,16 @@ readonly STAGING_DIR="${STAGING_DIR:-$SCRIPT_DIR/tmp}"
 readonly POSTGRES_ROOT="${POSTGRES_ROOT:-/app/postgres/rdbms}"
 readonly TIMESCALEDB_REPOSITORY="${TIMESCALEDB_REPOSITORY:-timescale/timescaledb}"
 
-[[ $# -eq 1 ]] || die "Usage: $0 <postgresql-version>"
-readonly POSTGRES_VERSION="$1"
+if [[ "${1:-}" == "--help" || "${1:-}" == "-h" ]]; then
+  show_help "$0" "Build and install TimescaleDB for an existing PostgreSQL installation."
+  exit 0
+fi
+
+POSTGRES_VERSION="$(parse_postgresql_version "$@")"
+readonly POSTGRES_VERSION
 validate_postgresql_version "$POSTGRES_VERSION"
 require_tools curl tar cmake
-readonly PREFIX="$POSTGRES_ROOT/$POSTGRES_VERSION"
+readonly PREFIX="${PREFIX:-$POSTGRES_ROOT/$POSTGRES_VERSION}"
 readonly PG_CONFIG="$PREFIX/bin/pg_config"
 require_postgresql_installation "$PREFIX"
 reset_staging_dir "$STAGING_DIR"
@@ -34,3 +39,21 @@ cd "$TIMESCALEDB_DIR"
 cmake --build build --parallel "${JOBS:-$(nproc)}"
 cmake --install build
 test -x "$PREFIX/lib/timescaledb.so"
+
+readonly SAVED_SOURCE_DIR="$(copy_install_source "$TIMESCALEDB_DIR" "$PREFIX" "timescaledb-$TIMESCALEDB_TAG")"
+write_install_recipe "$SAVED_SOURCE_DIR" "$POSTGRES_VERSION" "$PREFIX" <<'RECIPE'
+cd "$SCRIPT_DIR"
+
+# Configure
+rm -rf -- build
+./bootstrap \
+  -DPG_CONFIG="$PG_CONFIG" \
+  -DCMAKE_INSTALL_PREFIX="$PREFIX" \
+  -DCMAKE_BUILD_TYPE=Release
+
+# Make
+cmake --build build --parallel "$JOBS"
+
+# Make install
+cmake --install build
+RECIPE