Reduce the size of the Table object by 16 bytes on 64-bit machines, mostly
by avoiding intermixing pointer fields with integer fields.

FossilOrigin-Name: 1cb9aedfcf81f0086fa741cb29a062ee87724a5e
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index 615aa20..0b87add 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -1287,28 +1287,28 @@
 */
 struct Table {
   char *zName;         /* Name of the table or view */
-  int iPKey;           /* If not negative, use aCol[iPKey] as the primary key */
-  int nCol;            /* Number of columns in this table */
   Column *aCol;        /* Information about each column */
   Index *pIndex;       /* List of SQL indexes on this table. */
-  int tnum;            /* Root BTree node for this table (see note above) */
-  tRowcnt nRowEst;     /* Estimated rows in table - from sqlite_stat1 table */
   Select *pSelect;     /* NULL for tables.  Points to definition if a view. */
-  u16 nRef;            /* Number of pointers to this Table */
-  u8 tabFlags;         /* Mask of TF_* values */
-  u8 keyConf;          /* What to do in case of uniqueness conflict on iPKey */
   FKey *pFKey;         /* Linked list of all foreign keys in this table */
   char *zColAff;       /* String defining the affinity of each column */
 #ifndef SQLITE_OMIT_CHECK
   ExprList *pCheck;    /* All CHECK constraints */
 #endif
+  tRowcnt nRowEst;     /* Estimated rows in table - from sqlite_stat1 table */
+  int tnum;            /* Root BTree node for this table (see note above) */
+  i16 iPKey;           /* If not negative, use aCol[iPKey] as the primary key */
+  i16 nCol;            /* Number of columns in this table */
+  u16 nRef;            /* Number of pointers to this Table */
+  u8 tabFlags;         /* Mask of TF_* values */
+  u8 keyConf;          /* What to do in case of uniqueness conflict on iPKey */
 #ifndef SQLITE_OMIT_ALTERTABLE
   int addColOffset;    /* Offset in CREATE TABLE stmt to add a new column */
 #endif
 #ifndef SQLITE_OMIT_VIRTUALTABLE
-  VTable *pVTable;     /* List of VTable objects. */
   int nModuleArg;      /* Number of arguments to the module */
   char **azModuleArg;  /* Text of all module args. [0] is module name */
+  VTable *pVTable;     /* List of VTable objects. */
 #endif
   Trigger *pTrigger;   /* List of triggers stored in pSchema */
   Schema *pSchema;     /* Schema that contains this table */