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Overview
Comment:Fix harmless compiler warning.
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SHA1: 8d18a803bdeab290a6e9ff26911897f5f8683876
User & Date: mistachkin 2014-03-04 11:16:20.925
Context
2014-03-04
11:29
Fix name resolution problem in sub-selects within triggers, ticket [4ef7e3cfca]. (check-in: 5bcd0b1ca5 user: mistachkin tags: trunk)
11:16
Fix harmless compiler warning. (check-in: 8d18a803bd user: mistachkin tags: trunk)
04:12
Refactor the sqlite3VdbeRecordCompare() routine used to compare btree records. Create fast-track special case routines to handle the common cases more quickly. This gives a significant performance boost. (check-in: 3325ad5bdc user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/vdbeaux.c.
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int sqlite3VdbeRecordCompare(
  int nKey1, const void *pKey1,   /* Left key */
  const UnpackedRecord *pPKey2,   /* Right key */
  int bSkip                       /* If true, skip the first field */
){
  u32 d1;                         /* Offset into aKey[] of next data element */
  int i;                          /* Index of next field to compare */
  int szHdr1;                     /* Size of record header in bytes */
  u32 idx1;                       /* Offset of first type in header */
  int rc = 0;                     /* Return value */
  Mem *pRhs = pPKey2->aMem;       /* Next field of pPKey2 to compare */
  KeyInfo *pKeyInfo = pPKey2->pKeyInfo;
  const unsigned char *aKey1 = (const unsigned char *)pKey1;
  Mem mem1;









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3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414

int sqlite3VdbeRecordCompare(
  int nKey1, const void *pKey1,   /* Left key */
  const UnpackedRecord *pPKey2,   /* Right key */
  int bSkip                       /* If true, skip the first field */
){
  u32 d1;                         /* Offset into aKey[] of next data element */
  int i;                          /* Index of next field to compare */
  u32 szHdr1;                     /* Size of record header in bytes */
  u32 idx1;                       /* Offset of first type in header */
  int rc = 0;                     /* Return value */
  Mem *pRhs = pPKey2->aMem;       /* Next field of pPKey2 to compare */
  KeyInfo *pKeyInfo = pPKey2->pKeyInfo;
  const unsigned char *aKey1 = (const unsigned char *)pKey1;
  Mem mem1;
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