SQLite

Check-in [2d41caec80]
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment::-) (CVS 18)
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 2d41caec807a6ab83b67e59c849ebbda004f2869
User & Date: drh 2000-05-30 19:22:26.000
Context
2000-05-30
20:17
:-) (CVS 19) (check-in: 03725ce5ae user: drh tags: trunk)
19:22
:-) (CVS 18) (check-in: 2d41caec80 user: drh tags: trunk)
18:45
loads the complete ACD database! (CVS 17) (check-in: 97a0fb780e user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/build.c.
︙︙
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

**   drh@hwaci.com
**   http://www.hwaci.com/drh/
**
*************************************************************************
** This file contains C code routines that are called by the parser
** when syntax rules are reduced.
**
** $Id: build.c,v 1.8 2000/05/30 17:30:36 drh Exp $
*/
#include "sqliteInt.h"

/*
** This routine is called after a single SQL statement has been
** parsed and we want to execute the code to implement 
** the statement.  Prior action routines should have already








|








20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

**   drh@hwaci.com
**   http://www.hwaci.com/drh/
**
*************************************************************************
** This file contains C code routines that are called by the parser
** when syntax rules are reduced.
**
** $Id: build.c,v 1.9 2000/05/30 19:22:26 drh Exp $
*/
#include "sqliteInt.h"

/*
** This routine is called after a single SQL statement has been
** parsed and we want to execute the code to implement 
** the statement.  Prior action routines should have already
︙︙
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899

900
901
902
903
904
905
906

int sqliteExprResolveIds(Parse *pParse, IdList *pTabList, Expr *pExpr){
  if( pExpr==0 ) return 0;
  switch( pExpr->op ){
    /* A lone identifier */
    case TK_ID: {
      int cnt = 0;   /* Number of matches */
      int i;         /* Loop counter */
      char *z = pExpr->token.z;
      int n = pExpr->token.n;
      for(i=0; i<pTabList->nId; i++){
        int j;
        Table *pTab = pTabList->a[i].pTab;
        if( pTab==0 ) continue;
        for(j=0; j<pTab->nCol; j++){
          if( sqliteStrNICmp(pTab->azCol[j], z, n)==0 ){
            cnt++;
            pExpr->iTable = i;
            pExpr->iField = j;
          }
        }
      }

      if( cnt==0 ){
        sqliteSetNString(&pParse->zErrMsg, "no such field: ", -1,  
          pExpr->token.z, pExpr->token.n, 0);
        pParse->nErr++;
        return 1;
      }else if( cnt>1 ){
        sqliteSetNString(&pParse->zErrMsg, "ambiguous field name: ", -1,  








|
|





|






>








879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907

int sqliteExprResolveIds(Parse *pParse, IdList *pTabList, Expr *pExpr){
  if( pExpr==0 ) return 0;
  switch( pExpr->op ){
    /* A lone identifier */
    case TK_ID: {
      int cnt = 0;   /* Number of matches */
      int i;         /* Loop counter */
      char *z = 0;
      sqliteSetNString(&z, pExpr->token.z, pExpr->token.n, 0);
      for(i=0; i<pTabList->nId; i++){
        int j;
        Table *pTab = pTabList->a[i].pTab;
        if( pTab==0 ) continue;
        for(j=0; j<pTab->nCol; j++){
          if( sqliteStrICmp(pTab->azCol[j], z)==0 ){
            cnt++;
            pExpr->iTable = i;
            pExpr->iField = j;
          }
        }
      }
      sqliteFree(z);
      if( cnt==0 ){
        sqliteSetNString(&pParse->zErrMsg, "no such field: ", -1,  
          pExpr->token.z, pExpr->token.n, 0);
        pParse->nErr++;
        return 1;
      }else if( cnt>1 ){
        sqliteSetNString(&pParse->zErrMsg, "ambiguous field name: ", -1,
︙︙
914
915
916
917
918
919
920
921
922
923
924
925
926


927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947


948
949
950

951
952
953
954

955
956
957
958
959
960
961
962

  
    /* A table name and field name:  ID.ID */
    case TK_DOT: {
      int cnt = 0;   /* Number of matches */
      int i;         /* Loop counter */
      Expr *pLeft, *pRight;    /* Left and right subbranches of the expr */
      int n;                   /* Length of an identifier */
      char *z;                 /* Text of an identifier */

      pLeft = pExpr->pLeft;
      pRight = pExpr->pRight;
      assert( pLeft && pLeft->op==TK_ID );
      assert( pRight && pRight->op==TK_ID );


      n = pRight->token.n;
      z = pRight->token.z;      
      for(i=0; i<pTabList->nId; i++){
        int j;
        char *zTab;
        Table *pTab = pTabList->a[i].pTab;
        if( pTab==0 ) continue;
        if( pTabList->a[i].zAlias ){
          zTab = pTabList->a[i].zAlias;
        }else{
          zTab = pTab->zName;
        }
        if( sqliteStrNICmp(zTab, pLeft->token.z, pLeft->token.n)!=0 ) continue;
        for(j=0; j<pTab->nCol; j++){
          if( sqliteStrNICmp(pTab->azCol[j], z, n)==0 ){
            cnt++;
            pExpr->iTable = i;
            pExpr->iField = j;
          }
        }
      }


      if( cnt==0 ){
        sqliteSetNString(&pParse->zErrMsg, "no such field: ", -1,  
          pLeft->token.z, pLeft->token.n, ".", 1, z, n, 0);

        pParse->nErr++;
        return 1;
      }else if( cnt>1 ){
        sqliteSetNString(&pParse->zErrMsg, "ambiguous field name: ", -1,  

          pExpr->token.z, pExpr->token.n, ".", 1, z, n, 0);
        pParse->nErr++;
        return 1;
      }
      sqliteExprDelete(pLeft);
      pExpr->pLeft = 0;
      sqliteExprDelete(pRight);
      pExpr->pRight = 0;








|





>
>
|
|










|

|






>
>


|
>




>
|








915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969

  
    /* A table name and field name:  ID.ID */
    case TK_DOT: {
      int cnt = 0;   /* Number of matches */
      int i;         /* Loop counter */
      Expr *pLeft, *pRight;    /* Left and right subbranches of the expr */
      int n;                   /* Length of an identifier */
      char *zLeft, *zRight;    /* Text of an identifier */

      pLeft = pExpr->pLeft;
      pRight = pExpr->pRight;
      assert( pLeft && pLeft->op==TK_ID );
      assert( pRight && pRight->op==TK_ID );
      zLeft = 0;
      sqliteSetNString(&zLeft, pLeft->token.z, pLeft->token.n, 0);
      zRight = 0;
      sqliteSetNString(&zRight, pRight->token.z, pRight->token.n, 0);
      for(i=0; i<pTabList->nId; i++){
        int j;
        char *zTab;
        Table *pTab = pTabList->a[i].pTab;
        if( pTab==0 ) continue;
        if( pTabList->a[i].zAlias ){
          zTab = pTabList->a[i].zAlias;
        }else{
          zTab = pTab->zName;
        }
        if( sqliteStrICmp(zTab, zLeft)!=0 ) continue;
        for(j=0; j<pTab->nCol; j++){
          if( sqliteStrICmp(pTab->azCol[j], zRight)==0 ){
            cnt++;
            pExpr->iTable = i;
            pExpr->iField = j;
          }
        }
      }
      sqliteFree(zLeft);
      sqliteFree(zRight);
      if( cnt==0 ){
        sqliteSetNString(&pParse->zErrMsg, "no such field: ", -1,  
          pLeft->token.z, pLeft->token.n, ".", 1, 
          pRight->token.z, pRight->token.n, 0);
        pParse->nErr++;
        return 1;
      }else if( cnt>1 ){
        sqliteSetNString(&pParse->zErrMsg, "ambiguous field name: ", -1,  
          pLeft->token.z, pLeft->token.n, ".", 1,
          pRight->token.z, pRight->token.n, 0);
        pParse->nErr++;
        return 1;
      }
      sqliteExprDelete(pLeft);
      pExpr->pLeft = 0;
      sqliteExprDelete(pRight);
      pExpr->pRight = 0;
︙︙