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Overview
Comment:Update the recent auto-vacuum fix so that it works for the in-memory pointer-map structure used by this branch.
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SHA3-256: 8e311a6dba202e8733830d8f31b8f0ce11eaefb3a0ab5e5e95ac0d2e5136043b
User & Date: dan 2017-06-08 16:23:55.894
Context
2017-06-10
17:23
Remove sqlite3_log() and abort() calls added to this branch to debug the pointer-map problem ([fda22108]). (check-in: 79544fc285 user: dan tags: begin-concurrent)
2017-06-08
16:23
Update the recent auto-vacuum fix so that it works for the in-memory pointer-map structure used by this branch. (check-in: 8e311a6dba user: dan tags: begin-concurrent)
16:10
Merge 3.19.3 changes with this branch. (check-in: e2d38d51a9 user: dan tags: begin-concurrent)
Changes
Side-by-Side Diff Ignore Whitespace Patch
Changes to src/btree.c.
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    }
    oldCell = findCell(pPage, idx);
    if( !pPage->leaf ){
      memcpy(newCell, oldCell, 4);
    }
    rc = clearCell(pPage, oldCell, &info);
    if( info.nSize==szNew && info.nLocal==info.nPayload 
     && (!ISAUTOVACUUM || szNew<pPage->minLocal)
     && (!REQUIRE_PTRMAP || szNew<pPage->minLocal)
    ){
      /* Overwrite the old cell with the new if they are the same size.
      ** We could also try to do this if the old cell is smaller, then add
      ** the leftover space to the free list.  But experiments show that
      ** doing that is no faster then skipping this optimization and just
      ** calling dropCell() and insertCell(). 
      **
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Changes to test/concurrent4.test.
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  do_test 2.$tn.4 {
    sql2 {
      PRAGMA integrity_check;
    }
  } {ok}
}

reset_db
do_execsql_test 3.1 {
  PRAGMA page_size = 1024;
  PRAGMA journal_mode = wal;
  CREATE TABLE t2(x);
  INSERT INTO t2 VALUES(randomblob(5000));
  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
  INSERT INTO t1 VALUES(25, randomblob(104));
  DELETE FROM t2;
} {wal}

do_execsql_test 3.2 {
  BEGIN CONCURRENT;
    REPLACE INTO t1 VALUES(25, randomblob(1117));
  COMMIT;
} {}

finish_test