feat: decimal support (#114)

Author: RaphDal

c-questdb-client

@@ -127,7 +127,7 @@ stages:
             inputs: {pathtoPublish: 'wheelhouse'}
 
       - job: macos_x64
-        pool: {vmImage: 'macOS-13'}
+        pool: {vmImage: 'macOS-14'}
         timeoutInMinutes: 90
         steps:
           - task: UsePythonVersion@0

ci/cibuildwheel.yaml

@@ -36,28 +36,28 @@ stages:
             submodules: true
           - task: UsePythonVersion@0
             inputs:
-              versionSpec: '3.12'
+              versionSpec: "3.12"
           - script: |
               python3 --version
               python3 -m pip install cython
             displayName: "Install cython"
           - script: python3 ci/pip_install_deps.py
             displayName: "Install pandas latest"
             condition: eq(variables.pandasVersion, '')
-          - script:  python3 ci/pip_install_deps.py --pandas-version==$(pandasVersion)
+          - script: python3 ci/pip_install_deps.py --pandas-version==$(pandasVersion)
             displayName: "Install pandas older"
             condition: ne(variables.pandasVersion, '')
           - script: python3 proj.py build
             displayName: "Build"
           - script: |
               git clone --depth 1 https://github.com/questdb/questdb.git
-            displayName: git clone questdb
+            displayName: git clone questdb master
             condition: eq(variables.vsQuestDbMaster, true)
           - task: Maven@3
-            displayName: "Compile QuestDB"
+            displayName: "Compile QuestDB master"
             inputs:
-              mavenPOMFile: 'questdb/pom.xml'
-              jdkVersionOption: '1.17'
+              mavenPOMFile: "questdb/pom.xml"
+              jdkVersionOption: "1.17"
               options: "-DskipTests -Pbuild-web-console"
             condition: eq(variables.vsQuestDbMaster, true)
           - script: python3 proj.py test 1
@@ -68,7 +68,7 @@ stages:
             displayName: "Test vs master"
             env:
               JAVA_HOME: $(JAVA_HOME_17_X64)
-              QDB_REPO_PATH: './questdb'
+              QDB_REPO_PATH: "./questdb"
             condition: eq(variables.vsQuestDbMaster, true)
       - job: TestsAgainstVariousNumpyVersion1x
         pool:
@@ -82,7 +82,7 @@ stages:
             submodules: true
           - task: UsePythonVersion@0
             inputs:
-              versionSpec: '3.9'
+              versionSpec: "3.9"
           - script: |
               python3 --version
               python3 -m pip install uv
@@ -106,7 +106,7 @@ stages:
             submodules: true
           - task: UsePythonVersion@0
             inputs:
-              versionSpec: '3.11'
+              versionSpec: "3.11"
           - script: |
               python3 --version
               python3 -m pip install uv

ci/run_tests_pipeline.yaml

@@ -10,3 +10,6 @@ crate-type = ["staticlib"]
 
 [dev-dependencies]
 rand = "0.9.1"
+
+[dependencies]
+i256 = "0.2.3"

rpyutils/Cargo.lock

@@ -112,6 +112,17 @@ uint32_t qdb_active_senders_track_established(int* warn);  // bint* warn
 
 void qdb_active_senders_track_closed(uint32_t slot);
 
+/**
+ * Converts an mpdecimal limb array to its big-endian two's complement bytes.
+ */
+bool qdb_mpd_to_bigendian(const size_t *limbs,
+                          size_t limbs_len,
+                          size_t radix,
+                          uint32_t exp,
+                          bool negative,
+                          uint8_t *out,
+                          size_t *out_size);
+
 #ifdef __cplusplus
 } // extern "C"
 #endif // __cplusplus

rpyutils/Cargo.toml

@@ -23,4 +23,5 @@
  ******************************************************************************/
 
 mod active_senders;
+mod mpd_to_bigendian;
 mod pystr_to_utf8;