From 33ba4d5de3c37fd130370675e790395e06daf1be Mon Sep 17 00:00:00 2001
From: Tobie Morgan Hitchcock <tobie@abcum.com>
Date: Tue, 8 Jan 2019 15:51:53 +0000
Subject: [PATCH] Enable using dollar symbol when defining a param variable

---
 sql/exprs.go | 13 +++++++++++++
 sql/let.go   |  2 +-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/sql/exprs.go b/sql/exprs.go
index bac0690d..bbbeaa75 100644
--- a/sql/exprs.go
+++ b/sql/exprs.go
@@ -149,6 +149,19 @@ func (p *parser) parseIdioms() (mul Idents, err error) {
 
 }
 
+func (p *parser) parseParam() (*Ident, error) {
+
+	_, lit, err := p.shouldBe(IDENT, PARAM)
+	if err != nil {
+		return nil, &ParseError{Found: lit, Expected: []string{"name"}}
+	}
+
+	val, err := p.declare(IDENT, lit)
+
+	return val.(*Ident), err
+
+}
+
 // --------------------------------------------------
 //
 // --------------------------------------------------
diff --git a/sql/let.go b/sql/let.go
index 3e2f62c2..cf0e1ce8 100644
--- a/sql/let.go
+++ b/sql/let.go
@@ -26,7 +26,7 @@ func (p *parser) parseLetStatement() (stmt *LetStatement, err error) {
 	// always be an identifier, specifying a
 	// variable name to set.
 
-	stmt.Name, err = p.parseIdent()
+	stmt.Name, err = p.parseParam()
 	if err != nil {
 		return nil, err
 	}