diff --git a/store/postgres/sql_functions.go b/store/postgres/sql_functions.go
index 05da58a12..bd9f2f757 100644
--- a/store/postgres/sql_functions.go
+++ b/store/postgres/sql_functions.go
@@ -10,7 +10,42 @@ func sqlFunctionHandler(f ql.Function) (ql.ASTNode, error) {
 	switch strings.ToUpper(f.Name) {
 	case "QUARTER", "YEAR":
 		return ql.MakeFormattedNode(fmt.Sprintf("EXTRACT(%s FROM %%s::date)", f.Name), f.Arguments...), nil
+	case "DATE_FORMAT":
+		return ql.MakeFormattedNode("TO_CHAR(%s, %s)", f.Arguments...), nil
+	case "DATE":
+		return ql.MakeFormattedNode("%s::DATE", f.Arguments...), nil
+	case "DATE_ADD", "DATE_SUB", "STD":
+		return nil, fmt.Errorf("%q function is currently unsupported in PostgreSQL store backend", f.Name)
 	}
 
 	return f, nil
 }
+
+func translateDateFormatParams(format string) string {
+	return strings.NewReplacer(
+		`%a`, `Dy`,
+		`%b`, `Mon`,
+		`%c`, `FMMM`,
+		`%d`, `DD`,
+		`%e`, `FMDD`,
+		`%f`, `US`,
+		`%H`, `HH24`,
+		`%h`, `HH12`,
+		`%I`, `HH12`,
+		`%i`, `MI`,
+		`%j`, `DDD`,
+		`%k`, `FMHH24`,
+		`%l`, `FMHH12`,
+		`%M`, `FMMonth`,
+		`%m`, `MM`,
+		`%p`, `AM`,
+		`%r`, `HH12:MI:SS AM`,
+		`%S`, `SS`,
+		`%s`, `SS`,
+		`%T`, `HH24:MI:SS`,
+		`%W`, `FMDay`,
+		`%Y`, `YYYY`,
+		`%y`, `YY`,
+		`%%`, `%`,
+	).Replace(format)
+}