Return error if char *query is null in SPI_prepare()

diff --git a/src/backend/executor/spi.c b/src/backend/executor/spi.c
index c1a5848..646cfca 100644 (file)
--- a/src/backend/executor/spi.c
+++ b/src/backend/executor/spi.c
@@ -229,7 +229,7 @@ SPI_prepare(char *src, int nargs, Oid * argtypes)
 {
        _SPI_plan  *plan;
 
-       if (nargs < 0 || (nargs > 0 && argtypes == NULL))
+       if (src == NULL || nargs < 0 || (nargs > 0 && argtypes == NULL))
        {
                SPI_result = SPI_ERROR_ARGUMENT;
                return (NULL);