Add comment for missing break in switch

For clarity, following other sites, and to silence Coverity.

diff --git a/src/backend/utils/adt/formatting.c b/src/backend/utils/adt/formatting.c
index d6721f067b1ce219c16873af4144725eb90c816b..c5e25d942ec4ffd6d5dd6c893e45a5d941cf5199 100644 (file)
--- a/src/backend/utils/adt/formatting.c
+++ b/src/backend/utils/adt/formatting.c
@@ -1104,6 +1104,7 @@ NUMDesc_prepare(NUMDesc *num, FormatNode *n)
                        case NUM_D:
                                num->flag |= NUM_F_LDECIMAL;
                                num->need_locale = TRUE;
+                               /* FALLTHROUGH */
                        case NUM_DEC:
                                if (IS_DECIMAL(num))
                                        ereport(ERROR,