SQLite: Check-in [d879c47d]

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Overview

Comment:	Fix a minor problem causing an incorrect cursor-hint to be generated in some cases.
Downloads:	Tarball \| ZIP archive \| SQL archive
Timelines:	family \| ancestors \| descendants \| both \| trunk
Files:	files \| file ages \| folders
SHA3-256:	d879c47d7d145cbe99602b2cf70294ddc946709e8d61040942085d29e2c5b6cd
User & Date:	dan 2018-09-10 19:27:12

Context

2018-09-10
19:34		Fix a test script issue in fts3ao.test. check-in: 74c381b5 user: dan tags: trunk
19:27		Fix a minor problem causing an incorrect cursor-hint to be generated in some cases. check-in: d879c47d user: dan tags: trunk
17:21		Add the ability for loadable extensions to access the new sqlite3_create_window_function() interface. check-in: 3def6d8e user: drh tags: trunk

Changes

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Changes to src/wherecode.c.

** by pCCurHint.iTabCur, and an index is being used (which we will
** know because CCurHint.pIdx!=0) then transform the TK_COLUMN into
** an access of the index rather than the original table.
*/
static int codeCursorHintFixExpr(Walker *pWalker, Expr *pExpr){
  int rc = WRC_Continue;
  struct CCurHint *pHint = pWalker->u.pCCurHint;
  if( pExpr->op==TK_COLUMN && !ExprHasProperty(pExpr, EP_FixedCol) ){
    if( pExpr->iTable!=pHint->iTabCur ){
      Vdbe *v = pWalker->pParse->pVdbe;
      int reg = ++pWalker->pParse->nMem;   /* Register for column value */
      sqlite3ExprCodeGetColumnOfTable(
          v, pExpr->pTab, pExpr->iTable, pExpr->iColumn, reg
      );
      pExpr->op = TK_REGISTER;

** by pCCurHint.iTabCur, and an index is being used (which we will
** know because CCurHint.pIdx!=0) then transform the TK_COLUMN into
** an access of the index rather than the original table.
*/
static int codeCursorHintFixExpr(Walker *pWalker, Expr *pExpr){
  int rc = WRC_Continue;
  struct CCurHint *pHint = pWalker->u.pCCurHint;
  if( pExpr->op==TK_COLUMN ){
    if( pExpr->iTable!=pHint->iTabCur ){
      Vdbe *v = pWalker->pParse->pVdbe;
      int reg = ++pWalker->pParse->nMem;   /* Register for column value */
      sqlite3ExprCodeGetColumnOfTable(
          v, pExpr->pTab, pExpr->iTable, pExpr->iColumn, reg
      );
      pExpr->op = TK_REGISTER;