Some simple inserts and queries working on WITHOUT ROWID tables.

FossilOrigin-Name: 3f8016dee24213ec83a02d71ad2698789cc3a818

src/sqliteInt.h

@@ -1427,6 +1427,9 @@ struct Table {
 #  define IsHiddenColumn(X) 0
 #endif
 
+/* Does the table have a rowid */
+#define HasRowid(X)     (((X)->tabFlags & TF_WithoutRowid)==0)
+
 /*
 ** Each foreign key constraint is an instance of the following structure.
 **
@@ -1595,6 +1598,7 @@ struct Index {
   unsigned bUnordered:1;   /* Use this index for == or IN queries only */
   unsigned uniqNotNull:1;  /* True if UNIQUE and NOT NULL for all columns */
   unsigned isResized:1;    /* True if resizeIndexObject() has been called */
+  unsigned isCovering:1;   /* True if this is a covering index */
 #ifdef SQLITE_ENABLE_STAT3_OR_STAT4
   int nSample;             /* Number of elements in aSample[] */
   int nSampleCol;          /* Size of IndexSample.anEq[] and so on */