Implements a raw add on to the query builder

quartz/src/androidMain/kotlin/com/vitorpamplona/quartz/nip01Core/store/sqlite/sql/Condition.kt

@@ -21,6 +21,10 @@
 package com.vitorpamplona.quartz.nip01Core.store.sqlite.sql
 
 sealed class Condition {
+    data class Raw(
+        val condition: String,
+    ) : Condition()
+
     data class Equals(
         val column: String,
         val value: Any?,

quartz/src/androidMain/kotlin/com/vitorpamplona/quartz/nip01Core/store/sqlite/sql/SqlSelectionBuilder.kt

@@ -38,6 +38,9 @@ class SqlSelectionBuilder(
      */
     private fun buildCondition(cond: Condition): String =
         when (cond) {
+            is Condition.Raw -> {
+                cond.condition
+            }
             is Condition.Equals -> {
                 if (cond.value == null) {
                     "${cond.column} IS NULL"

quartz/src/androidMain/kotlin/com/vitorpamplona/quartz/nip01Core/store/sqlite/sql/WhereClauseBuilder.kt

@@ -23,6 +23,8 @@ package com.vitorpamplona.quartz.nip01Core.store.sqlite.sql
 class WhereClauseBuilder {
     private val conditions = mutableListOf<Condition>()
 
+    fun raw(condition: String) = apply { conditions.add(Condition.Raw(condition)) }
+
     fun equals(
         column: String,
         value: Any?,