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Overview
Comment:Remove an obsolete (and incorrect) comment from sqlite3MemCompare(). No changes to code.
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SHA1: c15b70b3aefc399dae1df5bb721530f0e2b7887a
User & Date: drh 2009-11-11 23:48:23.000
Context
2009-11-11
23:58
If the sector size is unspecified (initially 0) then set it to 512, not to 32. (check-in: 8861b5c160 user: drh tags: trunk)
23:48
Remove an obsolete (and incorrect) comment from sqlite3MemCompare(). No changes to code. (check-in: c15b70b3ae user: drh tags: trunk)
20:53
Tweaks to the SUBSTR() function to make it dramatically faster in the common case where the input string is large but the 2nd and 3rd arguments are small positive integers. (check-in: 5a474a867c user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/vdbemem.c.
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** Two NULL values are considered equal by this function.
*/
int sqlite3MemCompare(const Mem *pMem1, const Mem *pMem2, const CollSeq *pColl){
  int rc;
  int f1, f2;
  int combined_flags;

  /* Interchange pMem1 and pMem2 if the collating sequence specifies
  ** DESC order.
  */
  f1 = pMem1->flags;
  f2 = pMem2->flags;
  combined_flags = f1|f2;
  assert( (combined_flags & MEM_RowSet)==0 );
 
  /* If one value is NULL, it is less than the other. If both values
  ** are NULL, return 0.








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** Two NULL values are considered equal by this function.
*/
int sqlite3MemCompare(const Mem *pMem1, const Mem *pMem2, const CollSeq *pColl){
  int rc;
  int f1, f2;
  int combined_flags;




  f1 = pMem1->flags;
  f2 = pMem2->flags;
  combined_flags = f1|f2;
  assert( (combined_flags & MEM_RowSet)==0 );
 
  /* If one value is NULL, it is less than the other. If both values
  ** are NULL, return 0.
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