Useless field ispartitioned in CreateStmtContext

Hi!

       When looking at the partition-related code, I found that the ispartitioned

field in CreateStmtContext is not used. It looks like we can safely remove it and

avoid invalid assignment logic.

Here's a very simple fix， any suggestion?

diff --git a/src/backend/parser/parse_utilcmd.c b/src/backend/parser/parse_utilcmd.c

index 1e15ce10b48..6dea85cc2dc 100644

--- a/src/backend/parser/parse_utilcmd.c

+++ b/src/backend/parser/parse_utilcmd.c

@@ -89,7 +89,6 @@ typedef struct

        List       *alist;                      /* "after list" of things to do after creating

                                                                 * the table */

        IndexStmt  *pkey;                       /* PRIMARY KEY index, if any */

-       bool            ispartitioned;  /* true if table is partitioned */

        PartitionBoundSpec *partbound;  /* transformed FOR VALUES */

        bool            ofType;                 /* true if statement contains OF typename */

} CreateStmtContext;

@@ -246,7 +245,6 @@ transformCreateStmt(CreateStmt *stmt, const char *queryString)

        cxt.blist = NIL;

        cxt.alist = NIL;

        cxt.pkey = NULL;

-       cxt.ispartitioned = stmt->partspec != NULL;

        cxt.partbound = stmt->partbound;

        cxt.ofType = (stmt->ofTypename != NULL);

@@ -3401,7 +3399,6 @@ transformAlterTableStmt(Oid relid, AlterTableStmt *stmt,

        cxt.blist = NIL;

        cxt.alist = NIL;

        cxt.pkey = NULL;

-       cxt.ispartitioned = (rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);

        cxt.partbound = NULL;

        cxt.ofType = false;

--

Best regards,

hugozhang