Enhance TreeView to show WITH clauses. Add an assert to detect the
infinite loop behavior when certain kinds of errors occur on a nested
WITH clause.
FossilOrigin-Name: 2040d88e877bdb69de125a047cefb4a1558e89e8
diff --git a/src/treeview.c b/src/treeview.c
index 971de4e..a26e9e2 100644
--- a/src/treeview.c
+++ b/src/treeview.c
@@ -79,6 +79,45 @@
sqlite3TreeViewLine(p, "%s", zLabel);
}
+/*
+** Generate a human-readable description of a WITH clause.
+*/
+void sqlite3TreeViewWith(TreeView *pView, const With *pWith, u8 moreToFollow){
+ int i;
+ if( pWith==0 ) return;
+ if( pWith->nCte==0 ) return;
+ if( pWith->pOuter ){
+ sqlite3TreeViewLine(pView, "WITH (0x%p, pOuter=0x%p)",pWith,pWith->pOuter);
+ }else{
+ sqlite3TreeViewLine(pView, "WITH (0x%p)", pWith);
+ }
+ if( pWith->nCte>0 ){
+ pView = sqlite3TreeViewPush(pView, 1);
+ for(i=0; i<pWith->nCte; i++){
+ StrAccum x;
+ char zLine[1000];
+ const struct Cte *pCte = &pWith->a[i];
+ sqlite3StrAccumInit(&x, 0, zLine, sizeof(zLine), 0);
+ sqlite3XPrintf(&x, 0, "%s", pCte->zName);
+ if( pCte->pCols && pCte->pCols->nExpr>0 ){
+ char cSep = '(';
+ int j;
+ for(j=0; j<pCte->pCols->nExpr; j++){
+ sqlite3XPrintf(&x, 0, "%c%s", cSep, pCte->pCols->a[j].zName);
+ cSep = ',';
+ }
+ sqlite3XPrintf(&x, 0, ")");
+ }
+ sqlite3XPrintf(&x, 0, " AS");
+ sqlite3StrAccumFinish(&x);
+ sqlite3TreeViewItem(pView, zLine, i<pWith->nCte-1);
+ sqlite3TreeViewSelect(pView, pCte->pSelect, 0);
+ sqlite3TreeViewPop(pView);
+ }
+ sqlite3TreeViewPop(pView);
+ }
+}
+
/*
** Generate a human-readable description of a the Select object.
@@ -87,6 +126,11 @@
int n = 0;
int cnt = 0;
pView = sqlite3TreeViewPush(pView, moreToFollow);
+ if( p->pWith ){
+ sqlite3TreeViewWith(pView, p->pWith, 1);
+ cnt = 1;
+ sqlite3TreeViewPush(pView, 1);
+ }
do{
sqlite3TreeViewLine(pView, "SELECT%s%s (0x%p) selFlags=0x%x",
((p->selFlags & SF_Distinct) ? " DISTINCT" : ""),