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Comment:Test cases for RELEASE and ROLLBACK TO of a nested savepoint while queries are pending. Ticket [27ca74af3c083]
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Files: files | file ages | folders
SHA1: d2bf0efa7da59448a62f5be795403be4e5b7fb7f
User & Date: drh 2012-03-31 17:50:12
Original Comment: Test cases for RELEASE and ROLLBACK TO of a nested savepoint while queries are pending.
Context
2012-03-31
19:12
Fix a compiler warning by removing a redundant variable. check-in: af602d87 user: drh tags: trunk
17:50
Test cases for RELEASE and ROLLBACK TO of a nested savepoint while queries are pending. Ticket [27ca74af3c083] check-in: d2bf0efa user: drh tags: trunk
17:17
Do not abort pending queries on a RELEASE of a nested SAVEPOINT. This is a candidate fix for ticket [27ca74af3c083f787]. check-in: 79a4a3a8 user: drh tags: trunk
Changes
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Added test/savepoint7.test.

































































































































































































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# 2012 March 31
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
#
# Focus on the interaction between RELEASE and ROLLBACK TO with
# pending query aborts.  See ticket [27ca74af3c083f787a1c44b11fbb7c53bdbbcf1e].
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# The RELEASE of an inner savepoint should not effect pending queries.
#
do_test savepoint7-1.1 {
  db eval {
    CREATE TABLE t1(a,b,c);
    CREATE TABLE t2(x,y,z);
    INSERT INTO t1 VALUES(1,2,3);
    INSERT INTO t1 VALUES(4,5,6);
    INSERT INTO t1 VALUES(7,8,9);
    SAVEPOINT x1;
  }
  db eval {SELECT * FROM t1} {
    db eval {
      SAVEPOINT x2;
      INSERT INTO t2 VALUES($a,$b,$c);
      RELEASE x2;
    }
  }
  db eval {SELECT * FROM t2; RELEASE x1}
} {1 2 3 4 5 6 7 8 9}

do_test savepoint7-1.2 {
  db eval {DELETE FROM t2;}
  db eval {SELECT * FROM t1} {
    db eval {
      SAVEPOINT x2;
      INSERT INTO t2 VALUES($a,$b,$c);
      RELEASE x2;
    }
  }
  db eval {SELECT * FROM t2}
} {1 2 3 4 5 6 7 8 9}

do_test savepoint7-1.3 {
  db eval {DELETE FROM t2; BEGIN;}
  db eval {SELECT * FROM t1} {
    db eval {
      SAVEPOINT x2;
      INSERT INTO t2 VALUES($a,$b,$c);
      RELEASE x2;
    }
  }
  db eval {SELECT * FROM t2; ROLLBACK;}
} {1 2 3 4 5 6 7 8 9}

# However, a ROLLBACK of an inner savepoint will abort all queries, including
# queries in outer contexts.
#
do_test savepoint7-2.1 {
  db eval {DELETE FROM t2; SAVEPOINT x1;}
  set rc [catch {
    db eval {SELECT * FROM t1} {
      db eval {
        SAVEPOINT x2;
        INSERT INTO t2 VALUES($a,$b,$c);
        ROLLBACK TO x2;
      }
    }
  } msg]
  db eval {RELEASE x1}
  list $rc $msg [db eval {SELECT * FROM t2}]
} {1 {callback requested query abort} {}}

do_test savepoint7-2.2 {
  db eval {DELETE FROM t2;}
  set rc [catch {
    db eval {SELECT * FROM t1} {
      db eval {
        SAVEPOINT x2;
        INSERT INTO t2 VALUES($a,$b,$c);
        ROLLBACK TO x2;
      }
    }
  } msg]
  list $rc $msg [db eval {SELECT * FROM t2}]
} {1 {callback requested query abort} {}}

finish_test