From 93f1cff2a1cea964aaa9af6ccf3cf04afce2cd63 Mon Sep 17 00:00:00 2001
From: Jan Was <jan.was@starburstdata.com>
Date: Mon, 18 Jul 2022 12:49:43 +0200
Subject: [PATCH] Document passing trino.Numeric to queries

---
 README.md      | 1 +
 trino/trino.go | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/README.md b/README.md
index 6e3383b..b774ad5 100644
--- a/README.md
+++ b/README.md
@@ -197,6 +197,7 @@ When passing arguments to queries, the driver supports the following Go data typ
 * `bool`
 * `string`
 * slices
+* `trino.Numeric` - a string representation of a number
 
 It's not yet possible to pass:
 * `nil`
diff --git a/trino/trino.go b/trino/trino.go
index 0e998ee..e87d91a 100644
--- a/trino/trino.go
+++ b/trino/trino.go
@@ -588,6 +588,10 @@ func (st *driverStmt) ExecContext(ctx context.Context, args []driver.NamedValue)
 }
 
 func (st *driverStmt) CheckNamedValue(arg *driver.NamedValue) error {
+	_, ok := arg.Value.(Numeric)
+	if ok {
+		return nil
+	}
 	if reflect.TypeOf(arg.Value).Kind() == reflect.Slice {
 		return nil
 	}