RD-14898: SqlCompiler crashes when running 'hover' against a query that has two statements

sql-compiler/src/main/scala/com/rawlabs/sql/compiler/antlr4/SqlVisitor.scala

@@ -689,7 +689,10 @@ class SqlVisitor(
         val param = SqlParamUseNode(name)
 
         param match {
-          case use: SqlParamUseNode => params.get(use.name) match {
+          // The first statement is the only one that will be provided and later considered when running/validating
+          // in Postgres. Therefore, we ignore parameters when they don't belong that first statement.
+          case use: SqlParamUseNode if isFirstStatement =>
+            params.get(use.name) match {
               case Some(value) => params.update(use.name, value.copy(occurrences = value.occurrences :+ use))
               case None => params += (use.name -> SqlParam(use.name, None, None, None, Vector.empty, Vector(use)))
             }

sql-compiler/src/test/scala/com/rawlabs/sql/compiler/TestSqlCompilerServiceAirports.scala

@@ -1124,4 +1124,33 @@ class TestSqlCompilerServiceAirports
     assert(baos.toString() === """[{"x":"2008-09-29"}]""")
   }
 
+  test("""RD-14898""".stripMargin) { _ =>
+    {
+      // A query with a single statement spread over two lines.
+      val t = TestData("""
+        |SELECT airport_id FROM example.airports WHERE city = :location
+        |                                    AND airport_id = :iata
+        |""".stripMargin)
+      // hover ':location' returns the type of location (varchar)
+      val v1 = compilerService.hover(t.q, asJson(), Pos(2, 57))
+      assert(v1.completion.contains(TypeCompletion("location", "varchar")))
+      // hover ':iata' returns the type of iata (integer)
+      val v2 = compilerService.hover(t.q, asJson(), Pos(3, 57))
+      assert(v2.completion.contains(TypeCompletion("iata", "integer")))
+    }
+    {
+      // ALMOST THE SAME code as before, there's a typo: a semicolon in the end of the first line.
+      val t = TestData("""
+        |SELECT airport_id FROM example.airports WHERE city = :location;
+        |                                    AND airport_id = :iata
+        |""".stripMargin)
+      // hover ':location' still returns the type of location (varchar)
+      val v1 = compilerService.hover(t.q, asJson(), Pos(2, 57))
+      assert(v1.completion.contains(TypeCompletion("location", "varchar")))
+      // hover ':iata' doesn't return anything since it's ignored.
+      val v2 = compilerService.hover(t.q, asJson(), Pos(3, 57))
+      assert(v2.completion.isEmpty)
+    }
+  }
+
 }