fix(mariadb): json gt/gte/lt/lte comparisons (#315)

.github/workflows/test.yml

@@ -57,6 +57,7 @@ jobs:
     env:
       TEST_MYSQL: "mysql://root:prisma@localhost:3306/prisma"
       TEST_MYSQL8: "mysql://root:prisma@localhost:3307/prisma"
+      TEST_MYSQL_MARIADB: "mysql://root:prisma@localhost:3308/prisma"
       TEST_PSQL: "postgres://postgres:prisma@localhost:5432/postgres"
       TEST_MSSQL: "jdbc:sqlserver://localhost:1433;database=master;user=SA;password=<YourStrong@Passw0rd>;trustServerCertificate=true"
       RUSTFLAGS: "-Dwarnings"

Cargo.toml

@@ -85,7 +85,7 @@ either = { version = "1.6", optional = true }
 base64 = { version = "0.12.3", optional = true }
 chrono = { version = "0.4", optional = true }
 lru-cache = { version = "0.1", optional = true }
-serde_json = { version = "1.0.48", optional = true }
+serde_json = { version = "1.0.48", optional = true, features = ["float_roundtrip"] }
 native-tls = { version = "0.2", optional = true }
 bit-vec = { version = "0.6.1", optional = true }
 bytes = { version = "1.0", optional = true }

docker-compose.yml

@@ -40,6 +40,19 @@ services:
       - databases
     tmpfs: /var/lib/mysql8
 
+  mariadb:
+    image: mariadb:10
+    restart: always
+    environment:
+      MYSQL_USER: root
+      MYSQL_ROOT_PASSWORD: prisma
+      MYSQL_DATABASE: prisma
+    ports:
+      - "3308:3306"
+    networks:
+      - databases
+    tmpfs: /var/lib/mariadb
+
   mssql:
     image: mcr.microsoft.com/mssql/server:2019-latest
     restart: always

src/ast/expression.rs

@@ -54,6 +54,18 @@ impl<'a> Expression<'a> {
         }
     }
 
+    #[allow(dead_code)]
+    #[cfg(feature = "json")]
+    pub(crate) fn into_json_value(self) -> Option<serde_json::Value> {
+        match self.kind {
+            #[cfg(feature = "json")]
+            ExpressionKind::Parameterized(Value::Json(json_val)) => json_val,
+            #[cfg(feature = "json")]
+            ExpressionKind::Value(expr) => expr.into_json_value(),
+            _ => None,
+        }
+    }
+
     #[allow(dead_code)]
     pub(crate) fn is_json_extract_fun(&self) -> bool {
         match &self.kind {

src/connector/result_set/result_row.rs

@@ -6,7 +6,7 @@ use std::sync::Arc;
 
 /// An owned version of a `Row` in a `ResultSet`. See
 /// [ResultRowRef](struct.ResultRowRef.html) for documentation on data access.
-#[derive(Debug)]
+#[derive(Debug, PartialEq)]
 pub struct ResultRow {
     pub(crate) columns: Arc<Vec<String>>,
     pub(crate) values: Vec<Value<'static>>,