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Overview
Comment:Add assert() and ALWAYS() to identify two unreachable branches.
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SHA3-256: 8fa254aa6329bdd085b8e2c78d8e8a698b418eda8b2d48e0082dd9cd428cef29
User & Date: drh 2018-09-07 18:52:25
References
2018-09-07
19:12
Remove a faulty ALWAYS() macro added by check-in [8fa254aa6329bdd0]. check-in: fc47316e9b user: drh tags: trunk
Context
2018-09-07
18:56
Add extra test case to altertab.test. check-in: 64c3ee3c25 user: dan tags: trunk
18:52
Add assert() and ALWAYS() to identify two unreachable branches. check-in: 8fa254aa63 user: drh tags: trunk
15:50
Fix a problem with renaming a non-temp table that has at least one temp trigger and shares its name with a temp table. check-in: ceb60bd7e5 user: dan tags: trunk
Changes
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Changes to src/alter.c.

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        sNC.pParse = &sParse;
        sqlite3SelectPrep(&sParse, sParse.pNewTable->pSelect, &sNC);
        if( sParse.nErr ) rc = sParse.rc;
      }

      else if( sParse.pNewTrigger ){
        rc = renameResolveTrigger(&sParse, bTemp ? 0 : zDb);
        if( rc==SQLITE_OK ){
          int i1 = sqlite3SchemaToIndex(db, sParse.pNewTrigger->pTabSchema);
          int i2 = sqlite3FindDbName(db, zDb);
          if( i1==i2 ) sqlite3_result_int(context, 1);
        }
      }
    }








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        sNC.pParse = &sParse;
        sqlite3SelectPrep(&sParse, sParse.pNewTable->pSelect, &sNC);
        if( sParse.nErr ) rc = sParse.rc;
      }

      else if( sParse.pNewTrigger ){
        rc = renameResolveTrigger(&sParse, bTemp ? 0 : zDb);
        if( ALWAYS(rc==SQLITE_OK) ){
          int i1 = sqlite3SchemaToIndex(db, sParse.pNewTrigger->pTabSchema);
          int i2 = sqlite3FindDbName(db, zDb);
          if( i1==i2 ) sqlite3_result_int(context, 1);
        }
      }
    }

Changes to src/build.c.

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  }
  p = sqlite3SrcListAppend(db, p, pTable, pDatabase);
  if( p==0 ){
    goto append_from_error;
  }
  assert( p->nSrc>0 );
  pItem = &p->a[p->nSrc-1];


  if( IN_RENAME_OBJECT && pItem->zName ){
    Token *pToken = (pDatabase && pDatabase->z) ? pDatabase : pTable;
    sqlite3RenameTokenMap(pParse, pItem->zName, pToken);
  }
  assert( pAlias!=0 );
  if( pAlias->n ){
    pItem->zAlias = sqlite3NameFromToken(db, pAlias);
  }
  pItem->pSelect = pSubquery;







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  }
  p = sqlite3SrcListAppend(db, p, pTable, pDatabase);
  if( p==0 ){
    goto append_from_error;
  }
  assert( p->nSrc>0 );
  pItem = &p->a[p->nSrc-1];
  assert( (pTable==0)==(pDatabase==0) );
  assert( pItem->zName==0 || pDatabase!=0 );
  if( IN_RENAME_OBJECT && pItem->zName ){
    Token *pToken = (ALWAYS(pDatabase) && pDatabase->z) ? pDatabase : pTable;
    sqlite3RenameTokenMap(pParse, pItem->zName, pToken);
  }
  assert( pAlias!=0 );
  if( pAlias->n ){
    pItem->zAlias = sqlite3NameFromToken(db, pAlias);
  }
  pItem->pSelect = pSubquery;