Suppress uninitialized-variable warning from less-bright compilers.

The type variable must get set on first iteration of the while loop,
but there are reasonably modern gcc versions that don't realize that.
Initialize it with a dummy value.  This undoes a removal of initialization
in commit 654809e770ce270c0bb9de726c5df1ab193d60f0.

diff --git a/src/backend/utils/adt/jsonb.c b/src/backend/utils/adt/jsonb.c
index 0a36c44e9b4eac1100dfd241cf73a2f74d838f5a..1d65b251895c372e164f86ce763fb81a4539d20d 100644 (file)
--- a/src/backend/utils/adt/jsonb.c
+++ b/src/backend/utils/adt/jsonb.c
@@ -372,7 +372,7 @@ JsonbToCString(StringInfo out, JsonbContainer *in, int estimated_len)
 {
    bool        first = true;
    JsonbIterator *it;
-   JsonbIteratorToken type;
+   JsonbIteratorToken type = WJB_DONE;
    JsonbValue  v;
    int         level = 0;
    bool        redo_switch = false;