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Overview
Comment:Ensure that sqlite3_blob_reopen() correctly handles short rows. Fix for ticket [e6e962d6b0f06f46e].
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SHA1: 8cd1a4451cce1fe28f462800e2be1dee1735c0d0
User & Date: drh 2017-01-25 14:38:19.847
Context
2017-01-25
20:55
Trim NULL values off the end of records when the SQLITE_ENABLE_NULL_TRIM compile-time option is used. Increase the size of the P5 operand to 16 bits. Fix a problem with short records in the sessions extension. (check-in: 4801bd59a0 user: drh tags: trunk)
14:58
Experimental enhancement to automatically trim NULL values from the end of records, for a reduced disk footprint. This change also involves increasing the P5 operand from 8 to 16 bits. (check-in: 118ded403b user: drh tags: trim-nulls)
14:38
Ensure that sqlite3_blob_reopen() correctly handles short rows. Fix for ticket [e6e962d6b0f06f46e]. (check-in: 8cd1a4451c user: drh tags: trunk)
13:54
Fix SQLITEINT_H macro usage in two extensions. (check-in: 0803390c15 user: drh tags: trunk)
04:41
Ensure that sqlite3_blob_reopen() correctly handles short rows. Proposed fix for ticket [e6e962d6b0f06f46e]. Further testing needed. (Closed-Leaf check-in: 57d8dad35c user: drh tags: blob_reopen-fix)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/vdbeblob.c.
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    rc = sqlite3VdbeExec((Vdbe*)p->pStmt);
    db->nVdbeExec--;
  }else{
    rc = sqlite3_step(p->pStmt);
  }
  if( rc==SQLITE_ROW ){
    VdbeCursor *pC = v->apCsr[0];
    u32 type = pC->aType[p->iCol];


    if( type<12 ){
      zErr = sqlite3MPrintf(p->db, "cannot open value of type %s",
          type==0?"null": type==7?"real": "integer"
      );
      rc = SQLITE_ERROR;
      sqlite3_finalize(p->pStmt);
      p->pStmt = 0;








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    rc = sqlite3VdbeExec((Vdbe*)p->pStmt);
    db->nVdbeExec--;
  }else{
    rc = sqlite3_step(p->pStmt);
  }
  if( rc==SQLITE_ROW ){
    VdbeCursor *pC = v->apCsr[0];
    u32 type = pC->nHdrParsed>p->iCol ? pC->aType[p->iCol] : 0;
    testcase( pC->nHdrParsed==p->iCol );
    testcase( pC->nHdrParsed==p->iCol+1 );
    if( type<12 ){
      zErr = sqlite3MPrintf(p->db, "cannot open value of type %s",
          type==0?"null": type==7?"real": "integer"
      );
      rc = SQLITE_ERROR;
      sqlite3_finalize(p->pStmt);
      p->pStmt = 0;
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