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Factor out the TreeView parse tree printing module into a separate file.

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FossilOrigin-Name: c32ce54ca46a4be4373983be6fd44b1f3a0250d1
This commit is contained in:
drh
2015-06-08 15:08:15 +00:00
parent 6c1f4ef217
commit 38b4149ca1
11 changed files with 475 additions and 447 deletions
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128
src/select.c
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@@ -21,7 +21,8 @@
/***/ int sqlite3SelectTrace = 0;
# define SELECTTRACE(K,P,S,X) \
if(sqlite3SelectTrace&(K)) \
sqlite3DebugPrintf("%*s%s.%p: ",(P)->nSelectIndent*2-2,"",(S)->zSelName,(S)),\
sqlite3DebugPrintf("%*s%s.%p: ",(P)->nSelectIndent*2-2,"",\
(S)->zSelName,(S)),\
sqlite3DebugPrintf X
#else
# define SELECTTRACE(K,P,S,X)
@@ -774,7 +775,8 @@ static void selectInnerLoop(
default: {
assert( pDistinct->eTnctType==WHERE_DISTINCT_UNORDERED );
codeDistinct(pParse, pDistinct->tabTnct, iContinue, nResultCol, regResult);
codeDistinct(pParse, pDistinct->tabTnct, iContinue, nResultCol,
regResult);
break;
}
}
@@ -827,7 +829,8 @@ static void selectInnerLoop(
** current row to the index and proceed with writing it to the
** output table as well. */
int addr = sqlite3VdbeCurrentAddr(v) + 4;
sqlite3VdbeAddOp4Int(v, OP_Found, iParm+1, addr, r1, 0); VdbeCoverage(v);
sqlite3VdbeAddOp4Int(v, OP_Found, iParm+1, addr, r1, 0);
VdbeCoverage(v);
sqlite3VdbeAddOp2(v, OP_IdxInsert, iParm+1, r1);
assert( pSort==0 );
}
@@ -1704,7 +1707,8 @@ static void selectAddColumnTypeAndCollation(
for(i=0, pCol=pTab->aCol; i<pTab->nCol; i++, pCol++){
p = a[i].pExpr;
if( pCol->zType==0 ){
pCol->zType = sqlite3DbStrDup(db, columnType(&sNC, p,0,0,0, &pCol->szEst));
pCol->zType = sqlite3DbStrDup(db,
columnType(&sNC, p,0,0,0, &pCol->szEst));
}
szAll += pCol->szEst;
pCol->affinity = sqlite3ExprAffinity(p);
@@ -3214,8 +3218,8 @@ static void substSelect(
**
** (**) Restriction (10) was removed from the code on 2005-02-05 but we
** accidently carried the comment forward until 2014-09-15. Original
** text: "The subquery does not use aggregates or the outer query does not
** use LIMIT."
** text: "The subquery does not use aggregates or the outer query
** does not use LIMIT."
**
** (11) The subquery and the outer query do not both have ORDER BY clauses.
**
@@ -4985,7 +4989,8 @@ int sqlite3Select(
}
#endif
/* Various elements of the SELECT copied into local variables for convenience */
/* Various elements of the SELECT copied into local variables for
** convenience */
pEList = p->pEList;
pWhere = p->pWhere;
pGroupBy = p->pGroupBy;
@@ -5067,9 +5072,9 @@ int sqlite3Select(
if( p->selFlags & SF_Distinct ){
sDistinct.tabTnct = pParse->nTab++;
sDistinct.addrTnct = sqlite3VdbeAddOp4(v, OP_OpenEphemeral,
sDistinct.tabTnct, 0, 0,
(char*)keyInfoFromExprList(pParse, p->pEList,0,0),
P4_KEYINFO);
sDistinct.tabTnct, 0, 0,
(char*)keyInfoFromExprList(pParse, p->pEList,0,0),
P4_KEYINFO);
sqlite3VdbeChangeP5(v, BTREE_UNORDERED);
sDistinct.eTnctType = WHERE_DISTINCT_UNORDERED;
}else{
@@ -5328,7 +5333,8 @@ int sqlite3Select(
addrTopOfLoop = sqlite3VdbeCurrentAddr(v);
sqlite3ExprCacheClear(pParse);
if( groupBySort ){
sqlite3VdbeAddOp3(v, OP_SorterData, sAggInfo.sortingIdx, sortOut,sortPTab);
sqlite3VdbeAddOp3(v, OP_SorterData, sAggInfo.sortingIdx,
sortOut, sortPTab);
}
for(j=0; j<pGroupBy->nExpr; j++){
if( groupBySort ){
@@ -5400,7 +5406,8 @@ int sqlite3Select(
sqlite3VdbeAddOp1(v, OP_Return, regOutputRow);
sqlite3VdbeResolveLabel(v, addrOutputRow);
addrOutputRow = sqlite3VdbeCurrentAddr(v);
sqlite3VdbeAddOp2(v, OP_IfPos, iUseFlag, addrOutputRow+2); VdbeCoverage(v);
sqlite3VdbeAddOp2(v, OP_IfPos, iUseFlag, addrOutputRow+2);
VdbeCoverage(v);
VdbeComment((v, "Groupby result generator entry point"));
sqlite3VdbeAddOp1(v, OP_Return, regOutputRow);
finalizeAggFunctions(pParse, &sAggInfo);
@@ -5564,7 +5571,8 @@ int sqlite3Select(
** and send them to the callback one by one.
*/
if( sSort.pOrderBy ){
explainTempTable(pParse, sSort.nOBSat>0 ? "RIGHT PART OF ORDER BY":"ORDER BY");
explainTempTable(pParse,
sSort.nOBSat>0 ? "RIGHT PART OF ORDER BY":"ORDER BY");
generateSortTail(pParse, p, &sSort, pEList->nExpr, pDest);
}
@@ -5596,97 +5604,3 @@ select_end:
#endif
return rc;
}
#ifdef SQLITE_DEBUG
/*
** Generate a human-readable description of a the Select object.
*/
void sqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 moreToFollow){
int n = 0;
pView = sqlite3TreeViewPush(pView, moreToFollow);
sqlite3TreeViewLine(pView, "SELECT%s%s (0x%p) selFlags=0x%x",
((p->selFlags & SF_Distinct) ? " DISTINCT" : ""),
((p->selFlags & SF_Aggregate) ? " agg_flag" : ""), p, p->selFlags
);
if( p->pSrc && p->pSrc->nSrc ) n++;
if( p->pWhere ) n++;
if( p->pGroupBy ) n++;
if( p->pHaving ) n++;
if( p->pOrderBy ) n++;
if( p->pLimit ) n++;
if( p->pOffset ) n++;
if( p->pPrior ) n++;
sqlite3TreeViewExprList(pView, p->pEList, (n--)>0, "result-set");
if( p->pSrc && p->pSrc->nSrc ){
int i;
pView = sqlite3TreeViewPush(pView, (n--)>0);
sqlite3TreeViewLine(pView, "FROM");
for(i=0; i<p->pSrc->nSrc; i++){
struct SrcList_item *pItem = &p->pSrc->a[i];
StrAccum x;
char zLine[100];
sqlite3StrAccumInit(&x, 0, zLine, sizeof(zLine), 0);
sqlite3XPrintf(&x, 0, "{%d,*}", pItem->iCursor);
if( pItem->zDatabase ){
sqlite3XPrintf(&x, 0, " %s.%s", pItem->zDatabase, pItem->zName);
}else if( pItem->zName ){
sqlite3XPrintf(&x, 0, " %s", pItem->zName);
}
if( pItem->pTab ){
sqlite3XPrintf(&x, 0, " tabname=%Q", pItem->pTab->zName);
}
if( pItem->zAlias ){
sqlite3XPrintf(&x, 0, " (AS %s)", pItem->zAlias);
}
if( pItem->jointype & JT_LEFT ){
sqlite3XPrintf(&x, 0, " LEFT-JOIN");
}
sqlite3StrAccumFinish(&x);
sqlite3TreeViewItem(pView, zLine, i<p->pSrc->nSrc-1);
if( pItem->pSelect ){
sqlite3TreeViewSelect(pView, pItem->pSelect, 0);
}
sqlite3TreeViewPop(pView);
}
sqlite3TreeViewPop(pView);
}
if( p->pWhere ){
sqlite3TreeViewItem(pView, "WHERE", (n--)>0);
sqlite3TreeViewExpr(pView, p->pWhere, 0);
sqlite3TreeViewPop(pView);
}
if( p->pGroupBy ){
sqlite3TreeViewExprList(pView, p->pGroupBy, (n--)>0, "GROUPBY");
}
if( p->pHaving ){
sqlite3TreeViewItem(pView, "HAVING", (n--)>0);
sqlite3TreeViewExpr(pView, p->pHaving, 0);
sqlite3TreeViewPop(pView);
}
if( p->pOrderBy ){
sqlite3TreeViewExprList(pView, p->pOrderBy, (n--)>0, "ORDERBY");
}
if( p->pLimit ){
sqlite3TreeViewItem(pView, "LIMIT", (n--)>0);
sqlite3TreeViewExpr(pView, p->pLimit, 0);
sqlite3TreeViewPop(pView);
}
if( p->pOffset ){
sqlite3TreeViewItem(pView, "OFFSET", (n--)>0);
sqlite3TreeViewExpr(pView, p->pOffset, 0);
sqlite3TreeViewPop(pView);
}
if( p->pPrior ){
const char *zOp = "UNION";
switch( p->op ){
case TK_ALL: zOp = "UNION ALL"; break;
case TK_INTERSECT: zOp = "INTERSECT"; break;
case TK_EXCEPT: zOp = "EXCEPT"; break;
}
sqlite3TreeViewItem(pView, zOp, (n--)>0);
sqlite3TreeViewSelect(pView, p->pPrior, 0);
sqlite3TreeViewPop(pView);
}
sqlite3TreeViewPop(pView);
}
#endif /* SQLITE_DEBUG */