src/main/kotlin/fr/postgresjson/definition/parse/ParsingHelper.kt

@@ -156,7 +156,7 @@ internal data class Context(
     val script: String,
 ) {
     fun afterBeginBy(vararg texts: String): Boolean = texts.any {
-        script.drop(index + 1).take(it.length) == it
+        script.drop(index + 1).take(it.length).lowercase() == it.lowercase()
     }
     fun afterBeginBy(vararg texts: Regex): Boolean = texts.any {
         it.matchAt(script, index + 1) != null

src/test/kotlin/fr/postgresjson/definition/FunctionTest.kt

@@ -218,6 +218,32 @@ class FunctionTest : FreeSpec({
             }
         }
 
+        "Parameters with default int" - {
+            val param = parseFunction(
+                // language=PostgreSQL
+                """
+                create or replace function myfun(one int DEFAULT 123456 ) returns text language plpgsql as
+                $$ begin end;$$;
+                """.trimIndent()
+            ).parameters
+
+            "should have 1 parameters" {
+                param shouldHaveSize 1
+            }
+
+            "should have name" {
+                param[0].name shouldBe "one"
+            }
+
+            "should have type name" {
+                param[0].type.name shouldBe "int"
+            }
+
+            "should have default text" {
+                param[0].default shouldBe "123456"
+            }
+        }
+
         "parameters with IN OUT INOUT" - {
             val param = parseFunction(
                 // language=PostgreSQL