Added singularity instructions

README.md

@@ -2,7 +2,7 @@
 # AQuery++ Database
 ## Introduction
 
-AQuery++ Database is a cross-platform, In-Memory Column-Store Database that incorporates compiled query execution.
+AQuery++ Database is a cross-platform, In-Memory Column-Store Database that incorporates compiled query execution. (**Note**: If you encounter any problems, feel free to contact me via ys3540@nyu.edu)
 
 ## Docker (Recommended): 
    - See installation instructions from [docker.com](https://www.docker.com). Run **docker desktop** to start docker engine.
@@ -16,6 +16,11 @@ AQuery++ Database is a cross-platform, In-Memory Column-Store Database that inco
   2. Download the [patch](https://drive.google.com/file/d/1YkykhM6u0acZ-btQb4EUn4jAEXPT81cN/view?usp=sharing) 
   3. Decompress the patch to any directory and execute script inside by typing (`source ./cims.sh`). Please use the source command or `. ./cims.sh` (dot space) to execute the script because it contains configurations for environment variables.
   4. Execute `python3 ./prompt.py`
+
+## Singularity Container
+ 1. build container `singularity build aquery.sif aquery.def`
+ 2. execute container `singularity exec aquery.sif sh`
+ 3. run AQuery `python3 ./prompt.py`
 # Native Installation:
 ## Requirements
 1. Recent version of Linux, Windows or MacOS, with recent C++ compiler that has C++17 (1z) support. (however c++20 is recommended if available for heterogeneous lookup on unordered containers)

engine/str.sql

@@ -1 +0,0 @@
-create table strtest(a: string, b: string);

singularity.def

@@ -0,0 +1,22 @@
+Bootstrap: docker
+From: ubuntu:latest
+
+%post
+    apt update && apt install -y wget
+    export OS_VER=`cat /etc/os-release | grep VERSION_CODENAME` &&\
+    export OS_VER=${OS_VER#*=} &&\
+    printf "deb https://dev.monetdb.org/downloads/deb/ "${OS_VER}" monetdb \ndeb-src https://dev.monetdb.org/downloads/deb/ "${OS_VER}" monetdb\n">/etc/apt/sources.list.d/monetdb.list
+    wget --output-document=/etc/apt/trusted.gpg.d/monetdb.gpg https://dev.monetdb.org/downloads/MonetDB-GPG-KEY.gpg
+    apt update && apt install -y python3 python3-pip clang-14 libmonetdbe-dev git 
+    git clone https://github.com/sunyinqi0508/AQuery2 
+    python3 -m pip install -r AQuery2/requirements.txt
+    export IS_DOCKER_IMAGE=1 &&\
+    export CXX=clang++-14 &&\
+    cd AQuery2 && python3 prompt.py
+
+%environment
+    export IS_DOCKER_IMAGE=1 
+    export CXX=clang++-14
+
+%runscript
+    cd AQuery2 && python3 prompt.py