diff --git a/src/commonMain/kotlin/ru/landgrafhomyak/serdha/api/v0/ddl/ModuleCreator.kt b/src/commonMain/kotlin/ru/landgrafhomyak/serdha/api/v0/ddl/ModuleCreator.kt
index 932c3f3..a217101 100644
--- a/src/commonMain/kotlin/ru/landgrafhomyak/serdha/api/v0/ddl/ModuleCreator.kt
+++ b/src/commonMain/kotlin/ru/landgrafhomyak/serdha/api/v0/ddl/ModuleCreator.kt
@@ -15,6 +15,8 @@ public interface ModuleCreator {
 	}
 
 	public fun <TableUserExtension : Any> createTable(namespace: Namespace, name: String, initializer: CreateTable<TableUserExtension>): Table<TableUserExtension, Nothing>
+	public fun <TableUserExtension : Any> createTempSessionWideTable(initializer: CreateTable<TableUserExtension>): Table<TableUserExtension, Nothing>
+	public fun <TableUserExtension : Any> createTempTransactionWideTable(initializer: CreateTable<TableUserExtension>): Table<TableUserExtension, Nothing>
 
 	public interface UpdateTable<TableNewUserExtension : Any, TableOldUserExtension : Any> {
 		public fun updateTable(oldTable: Table<TableOldUserExtension, *>, updater: TableUpdater<TableNewUserExtension, TableOldUserExtension>): TableNewUserExtension
diff --git a/src/commonMain/kotlin/ru/landgrafhomyak/serdha/api/v0/runtime/SynchronizedDatabase.kt b/src/commonMain/kotlin/ru/landgrafhomyak/serdha/api/v0/runtime/SynchronizedDatabase.kt
index 00d2888..57a53d5 100644
--- a/src/commonMain/kotlin/ru/landgrafhomyak/serdha/api/v0/runtime/SynchronizedDatabase.kt
+++ b/src/commonMain/kotlin/ru/landgrafhomyak/serdha/api/v0/runtime/SynchronizedDatabase.kt
@@ -2,6 +2,8 @@ package ru.landgrafhomyak.serdha.api.v0.runtime
 
 import ru.landgrafhomyak.serdha.api.v0.LowLevelApi
 import ru.landgrafhomyak.serdha.api.v0.ddl.Module
+import ru.landgrafhomyak.serdha.api.v0.ddl.RowId
+import ru.landgrafhomyak.serdha.api.v0.ddl.Table
 import ru.landgrafhomyak.serdha.api.v0.dml.Delete
 import ru.landgrafhomyak.serdha.api.v0.dml.Insert
 import ru.landgrafhomyak.serdha.api.v0.dml.InsertCreator
@@ -42,4 +44,11 @@ public interface SynchronizedDatabase<DatabaseUserExtension : Any> : Module<Data
 	@Suppress("FunctionName")
 	@LowLevelApi
 	public suspend fun _close()
+
+	public fun <TableUserException : Any, V> mapOfRowIds(
+		table: Table<TableUserException, *>,
+		builder: (MutableMap<Row<TableUserException>, V>) -> Unit
+	): Map<RowId<TableUserException>, V>
+
+	public fun <TableUserException : Any, V> mutableMapOfRowIds(table: Table<TableUserException, *>): MutableMap<RowId<TableUserException>, V>
 }
\ No newline at end of file