Fix uninitialized variable in transformTableLikeClause()

process_notnull_constraints should be set to false until we discover a NOT
NULL column.

Discovered while running Valgrind.

Discussion: https://postgr.es/m/CAApHDvoMyiZVi1KW5WVdqMRzWsWkD3F7n6QD+BbAO6WTeAWsUQ@mail.gmail.com

diff --git a/src/backend/parser/parse_utilcmd.c b/src/backend/parser/parse_utilcmd.c
index 15d8f3a1a0b466520a987bc5d5b7fab4e5a46c0e..ea0fe6f81161e134525756048fc4efeafbaecc12 100644 (file)
--- a/src/backend/parser/parse_utilcmd.c
+++ b/src/backend/parser/parse_utilcmd.c
@@ -1041,7 +1041,7 @@ transformTableLikeClause(CreateStmtContext *cxt, TableLikeClause *table_like_cla
    AclResult   aclresult;
    char       *comment;
    ParseCallbackState pcbstate;
-   bool        process_notnull_constraints;
+   bool        process_notnull_constraints = false;
 
    setup_parser_errposition_callback(&pcbstate, cxt->pstate,
                                      table_like_clause->relation->location);