Bill Sun 3 years ago
parent 15b124e2e6
commit d82e36b087

@ -1,6 +1,7 @@
# AQuery++ DB
## Introduction
AQuery++ Database is an 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.
Compiler frontend built on top of [mo-sql-parsing](https://github.com/klahnakoski/mo-sql-parsing).
## Roadmap
@ -24,8 +25,20 @@ Compiler frontend built on top of [mo-sql-parsing](https://github.com/klahnakosk
- [ ] C++ Meta-Programming: Elimilate template recursions as much as possible.
- [ ] IPC: Better ways to communicate between Interpreter (Python) and Executer (C++).
- [ ] Sockets? stdin/stdout capture?
## Introduction
## Requirements
Recent version of Linux, Windows or MacOS, with recent C++ compiler that has C++17 (1z) support (e.g. gcc 6.0, MSVC 2017, clang 6.0), and python 3.6 or above.
## Usage
`python3 prompt.py` will launch the interactive command prompt. The server binary will be autometically rebuilt and started.
#### Commands:
- `<sql statement>`: parse sql statement
- `f <filename>`: parse all sql statements in file
- `print`: printout parsed sql statements
- `exec`: execute last parsed statement(s)
- `r`: run the last generated code snippet
- `save <OPTIONAL: filename>`: save current code snippet. will use random filename if not specified.
- `exit`: quit the prompt
#### Example:
`f moving_avg.a` <br>
`exec`

@ -93,7 +93,7 @@
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
<LanguageStandard>stdcpp17</LanguageStandard>
<LanguageStandard>stdcpplatest</LanguageStandard>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
@ -109,7 +109,7 @@
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
<LanguageStandard>stdcpp17</LanguageStandard>
<LanguageStandard>stdcpplatest</LanguageStandard>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
@ -125,7 +125,7 @@
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
<LanguageStandard>stdcpp17</LanguageStandard>
<LanguageStandard>stdcpplatest</LanguageStandard>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
@ -141,7 +141,7 @@
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
<LanguageStandard>stdcpp17</LanguageStandard>
<LanguageStandard>stdcpplatest</LanguageStandard>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>

@ -92,6 +92,8 @@ cxt = None
while test_parser:
try:
if server.poll() is not None:
mm.seek(0,os.SEEK_SET)
mm.write(b'\x01\x00')
server = subprocess.Popen(["./server.bin", shm])
q = input()
if q == 'exec':
@ -128,6 +130,15 @@ while test_parser:
mm.seek(0,os.SEEK_SET)
mm.write(b'\x01\x01')
continue
elif q.startswith('save'):
filename = re.split(' |\t', q)
if (len(filename) > 1):
filename = filename[1]
else:
filename = f'out_{base62uuid(4)}.cpp'
with open(filename, 'wb') as outfile:
outfile.write((cxt.finalize()).encode('utf-8'))
continue
trimed = ws.sub(' ', q.lower()).split(' ')
if trimed[0].startswith('f'):
fn = 'stock.a' if len(trimed) <= 1 or len(trimed[1]) == 0 \

@ -23,32 +23,32 @@
<Keyword>Win32Proj</Keyword>
<ProjectGuid>{031352c2-afbb-45aa-9518-dbc1f9ef2af3}</ProjectGuid>
<RootNamespace>server</RootNamespace>
<WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
<WindowsTargetPlatformVersion>10.0.19041.0</WindowsTargetPlatformVersion>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<PlatformToolset>v143</PlatformToolset>
<PlatformToolset>v141</PlatformToolset>
<CharacterSet>Unicode</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
<PlatformToolset>v143</PlatformToolset>
<PlatformToolset>v141</PlatformToolset>
<WholeProgramOptimization>true</WholeProgramOptimization>
<CharacterSet>Unicode</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<PlatformToolset>v143</PlatformToolset>
<PlatformToolset>v141</PlatformToolset>
<CharacterSet>Unicode</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
<PlatformToolset>v143</PlatformToolset>
<PlatformToolset>v141</PlatformToolset>
<WholeProgramOptimization>true</WholeProgramOptimization>
<CharacterSet>Unicode</CharacterSet>
</PropertyGroup>
@ -88,9 +88,9 @@
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
<LanguageStandard>stdcpp20</LanguageStandard>
<MultiProcessorCompilation>true</MultiProcessorCompilation>
<EnableParallelCodeGeneration>true</EnableParallelCodeGeneration>
<LanguageStandard>stdcpplatest</LanguageStandard>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
@ -105,9 +105,9 @@
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
<LanguageStandard>stdcpp20</LanguageStandard>
<MultiProcessorCompilation>true</MultiProcessorCompilation>
<EnableParallelCodeGeneration>true</EnableParallelCodeGeneration>
<LanguageStandard>stdcpplatest</LanguageStandard>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
@ -122,9 +122,9 @@
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
<LanguageStandard>stdcpp20</LanguageStandard>
<MultiProcessorCompilation>true</MultiProcessorCompilation>
<EnableParallelCodeGeneration>true</EnableParallelCodeGeneration>
<LanguageStandard>stdcpplatest</LanguageStandard>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
@ -139,9 +139,9 @@
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
<LanguageStandard>stdcpp20</LanguageStandard>
<MultiProcessorCompilation>true</MultiProcessorCompilation>
<EnableParallelCodeGeneration>true</EnableParallelCodeGeneration>
<LanguageStandard>stdcpplatest</LanguageStandard>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>

@ -29,4 +29,4 @@ SELECT price, timestamp FROM stocks where price - timestamp > 1 and not (price*t
/*<k> "q4"</k>*/
SELECT max(price-mins(price))
FROM stocks
ASSUMING ASC price
ASSUMING DESC timestamp

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