From c015c016ea75a1fa1116558107a120d7ac1c821c Mon Sep 17 00:00:00 2001
From: yangzq50 <58433399+yangzq50@users.noreply.github.com>
Date: Tue, 26 Dec 2023 14:07:09 +0800
Subject: [PATCH] Update docs/build_from_source.md (#369)

* edit docs/build_from_source.md

* add doc for building source code using Docker

* fix path for program

* build in release mode in Docker
---
 docs/build_from_source.md | 34 ++++++++++++++++++++++++++++++----
 docs/sql_syntax.md        |  4 ++--
 2 files changed, 32 insertions(+), 6 deletions(-)

diff --git a/docs/build_from_source.md b/docs/build_from_source.md
index 3cb013a265..3c55d0e97d 100644
--- a/docs/build_from_source.md
+++ b/docs/build_from_source.md
@@ -1,8 +1,34 @@
 # Build from Source
 
+- [Build from source on Linux using Docker](#build-from-source-on-linux-using-docker)
 - [Build from source on Ubuntu 22.04](#build-from-source-on-ubuntu-2204)
 - [Build from source on Ubuntu 23.10](#build-from-source-on-ubuntu-2310)
 
+## Build from source on Linux using Docker
+
+This section provides instructions on building Infinity from source on Linux using Docker.
+
+### Step1 Download the source code
+
+```shell
+git clone https://github.com/infiniflow/infinity.git
+```
+
+### Step2 Build the source code using Docker
+
+```shell
+cd infinity && mkdir build
+TZ=$(readlink -f /etc/localtime | awk -F '/zoneinfo/' '{print $2}')
+docker run -d --name infinity_build --network=host -e TZ=$TZ -v $PWD:/infinity infiniflow/infinity_builder:centos7
+docker exec infinity_build bash -c "cd /infinity/build && cmake -G Ninja -DCMAKE_BUILD_TYPE=Release .. && ninja -j 12"
+```
+
+### Step3 Start up the Infinity server
+
+```shell
+./build/src/infinity
+```
+
 ## Build from source on Ubuntu 22.04
 
 This section provides instructions on building Infinity from source on Ubuntu 22.04.
@@ -35,8 +61,8 @@ ln -s /usr/lib/llvm-17/bin/clang-scan-deps /usr/bin/clang-scan-deps
 ```shell
 git config --global --add safe.directory infinity
 cd infinity && mkdir build && cd build
-export CC=/usr/bin/clang-18
-export CXX=/usr/bin/clang++-18
+export CC=/usr/bin/clang-17
+export CXX=/usr/bin/clang++-17
 cmake -G Ninja ..
 ninja -j 12
 ```
@@ -44,7 +70,7 @@ ninja -j 12
 ### Step4 Start up the Infinity server
 
 ```shell
-.build/src/infinity
+./src/infinity
 ```
 
 
@@ -84,5 +110,5 @@ ninja -j 12
 ### Step4 Start up Infinity server
 
 ```shell
-.build/src/infinity
+./src/infinity
 ```
\ No newline at end of file
diff --git a/docs/sql_syntax.md b/docs/sql_syntax.md
index 8a8911ac5f..b50a883a76 100644
--- a/docs/sql_syntax.md
+++ b/docs/sql_syntax.md
@@ -70,6 +70,6 @@ DESCRIBE INDEX table_name;
 #### Example
 
 ```sql
-SELECT col1 FROM tbl1 ORDER BY KNN(col2, [0.3, 0.3, 0.2, 0.2], 'float', 'l2') LIMIT 2;
-SELECT col1 FROM tbl1 ORDER BY KNN(col2, [0.3, 0.3, 0.2, 0.2], 'float', 'ip') DESC LIMIT 2;
+SELECT col1 FROM tbl1 SEARCH KNN(col2, [0.3, 0.3, 0.2, 0.2], 'float', 'l2', 2);
+SELECT col1 FROM tbl1 SEARCH KNN(col2, [0.3, 0.3, 0.2, 0.2], 'float', 'ip', 2);
 ```