From bc9e5dd72e2541335a36bd713737b8b17e1469ba Mon Sep 17 00:00:00 2001
From: "Andrey.Tarashevskiy" <fantocci@gmail.com>
Date: Fri, 4 Jun 2021 20:10:10 +0300
Subject: [PATCH] Explicit statementType for exec functions How to call a MSSQL
 stored procedure and iterate over returned result set? #390 Execute stored
 procedures with resultSet, MS SQL #1249

---
 .../org/jetbrains/exposed/sql/Transaction.kt   | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/exposed-core/src/main/kotlin/org/jetbrains/exposed/sql/Transaction.kt b/exposed-core/src/main/kotlin/org/jetbrains/exposed/sql/Transaction.kt
index 8c89158fa5..83080f8514 100644
--- a/exposed-core/src/main/kotlin/org/jetbrains/exposed/sql/Transaction.kt
+++ b/exposed-core/src/main/kotlin/org/jetbrains/exposed/sql/Transaction.kt
@@ -79,14 +79,20 @@ open class Transaction(private val transactionImpl: TransactionInterface) : User
 
     private fun describeStatement(delta: Long, stmt: String): String = "[${delta}ms] ${stmt.take(1024)}\n\n"
 
-    fun exec(stmt: String, args: Iterable<Pair<IColumnType, Any?>> = emptyList()) = exec(stmt, args) { }
-
-    fun <T : Any> exec(stmt: String, args: Iterable<Pair<IColumnType, Any?>> = emptyList(), transform: (ResultSet) -> T): T? {
+    fun exec(stmt: String, args: Iterable<Pair<IColumnType, Any?>> = emptyList(), explicitStatementType: StatementType? = null) =
+        exec(stmt, args, explicitStatementType) { }
+
+    fun <T : Any> exec(
+        stmt: String,
+        args: Iterable<Pair<IColumnType, Any?>> = emptyList(),
+        explicitStatementType: StatementType? = null,
+        transform: (ResultSet) -> T
+    ): T? {
         if (stmt.isEmpty()) return null
 
-        val type = StatementType.values().find {
-            stmt.trim().startsWith(it.name, true)
-        } ?: StatementType.OTHER
+        val type = explicitStatementType
+            ?: StatementType.values().find { stmt.trim().startsWith(it.name, true) }
+            ?: StatementType.OTHER
 
         return exec(object : Statement<T>(type, emptyList()) {
             override fun PreparedStatementApi.executeInternal(transaction: Transaction): T? {