diff --git a/spanner/spansql/keywords.go b/spanner/spansql/keywords.go
index 84ab0aa5f93e..7fee1134fe2a 100644
--- a/spanner/spansql/keywords.go
+++ b/spanner/spansql/keywords.go
@@ -166,7 +166,44 @@ var allFuncs = []string{
 
 	// Mathematical functions.
 	"ABS",
+	"ACOS",
+	"ACOSH",
+	"ASIN",
+	"ASINH",
+	"ATAN",
+	"ATAN2",
+	"ATANH",
+	"CEIL",
+	"CEILING",
+	"COS",
+	"COSH",
+	"DIV",
+	"EXP",
+	"FLOOR",
+	"GREATEST",
+	"IEEE_DIVIDE",
+	"IS_INF",
+	"IS_NAN",
+	"LEAST",
+	"LN",
+	"LOG",
+	"LOG10",
 	"MOD",
+	"POW",
+	"POWER",
+	"ROUND",
+	"SAFE_ADD",
+	"SAFE_DIVIDE",
+	"SAFE_MULTIPLY",
+	"SAFE_NEGATE",
+	"SAFE_SUBTRACT",
+	"SIGN",
+	"SIN",
+	"SINH",
+	"SQRT",
+	"TAN",
+	"TANH",
+	"TRUNC",
 
 	// Hash functions.
 	"FARM_FINGERPRINT",