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SQLite training in Houston TX on 2019-11-05 (details)
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Overview
Comment:Fix an assert() that may fail following an OOM error.
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SHA1: 5f592359d6d41708da3b3ac9d987a1631bfa3d88
User & Date: dan 2015-01-21 17:00:57
Context
2015-01-22
11:29
Change the undocumented ".selecttrace" command in the shell to accept an integer bitmask rather than a boolean. check-in: bd63bf88 user: drh tags: trunk
2015-01-21
17:20
Merge trunk changes with this branch. check-in: f8699a1a user: dan tags: fts5
17:00
Fix an assert() that may fail following an OOM error. check-in: 5f592359 user: dan tags: trunk
00:51
Fix harmless compiler warning seen with MSVC. check-in: 78c2e62b user: mistachkin tags: trunk
Changes
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Changes to src/expr.c.

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*/
void sqlite3ExprCacheStore(Parse *pParse, int iTab, int iCol, int iReg){
  int i;
  int minLru;
  int idxLru;
  struct yColCache *p;

  assert( iReg>0 );  /* Register numbers are always positive */

  assert( iCol>=-1 && iCol<32768 );  /* Finite column numbers */

  /* The SQLITE_ColumnCache flag disables the column cache.  This is used
  ** for testing only - to verify that SQLite always gets the same answer
  ** with and without the column cache.
  */
  if( OptimizationDisabled(pParse->db, SQLITE_ColumnCache) ) return;







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*/
void sqlite3ExprCacheStore(Parse *pParse, int iTab, int iCol, int iReg){
  int i;
  int minLru;
  int idxLru;
  struct yColCache *p;

  /* Unless an error has occurred, register numbers are always positive. */
  assert( iReg>0 || pParse->nErr || pParse->db->mallocFailed );
  assert( iCol>=-1 && iCol<32768 );  /* Finite column numbers */

  /* The SQLITE_ColumnCache flag disables the column cache.  This is used
  ** for testing only - to verify that SQLite always gets the same answer
  ** with and without the column cache.
  */
  if( OptimizationDisabled(pParse->db, SQLITE_ColumnCache) ) return;

Changes to test/mallocK.test.

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do_faultsim_test 6 -faults oom* -body {
  db cache flush
  db eval { SELECT DISTINCT c FROM t3 WHERE b BETWEEN '.xx..' AND '.xxxx' }
} -test {
  faultsim_test_result {0 {12 13 14 15}} 
}











finish_test








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do_faultsim_test 6 -faults oom* -body {
  db cache flush
  db eval { SELECT DISTINCT c FROM t3 WHERE b BETWEEN '.xx..' AND '.xxxx' }
} -test {
  faultsim_test_result {0 {12 13 14 15}} 
}

do_execsql_test 7.1 {
  CREATE TABLE x1(a INTEGER PRIMARY KEY, b);
}
do_faultsim_test 7.2 -faults oom* -body {
  execsql { SELECT * FROM x1 WHERE a = (SELECT 1) }
} -test {
  faultsim_test_result [list 0 {}]
}


finish_test