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SQLite training in Houston TX on 2019-11-05 (details)
Part of the 2019 Tcl Conference

Artifact 1846519a438697f45e9dcb246908af81b551c29e1078d0304fae83f1fed7e9ee:


# 2014 August 30
#
# 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.
#
#***********************************************************************
#

if {![info exists testdir]} {
  set testdir [file join [file dirname [info script]] .. .. test]
}
source $testdir/tester.tcl
set ::testprefix rbu10


#--------------------------------------------------------------------
# Test that UPDATE commands work even if the input columns are in a 
# different order to the output columns. 
#
do_execsql_test 1.0 {
  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
  INSERT INTO t1 VALUES(1, 'b', 'c');
}

proc apply_rbu {sql} {
  forcedelete rbu.db
  sqlite3 db2 rbu.db
  db2 eval $sql
  db2 close
  sqlite3rbu rbu test.db rbu.db
  while { [rbu step]=="SQLITE_OK" } {}
  rbu close
}

do_test 1.1 {
  apply_rbu {
    CREATE TABLE data_t1(a, c, b, rbu_control);
    INSERT INTO data_t1 VALUES(1, 'xxx', NULL, '.x.');
  }
  db eval { SELECT * FROM t1 }
} {1 b xxx}

#--------------------------------------------------------------------
# Test that the hidden languageid column of an fts4 table can be 
# written.
#
ifcapable fts3 {
  do_execsql_test 2.0 {
    CREATE VIRTUAL TABLE ft USING fts4(a, b, languageid='langid');
  }
  do_test 2.1 {
    apply_rbu {
      CREATE TABLE data_ft(a, b, rbu_rowid, langid, rbu_control);
      INSERT INTO data_ft VALUES('a', 'b', 22, 1, 0);    -- insert
      INSERT INTO data_ft VALUES('a', 'b', 23, 10, 0);   -- insert
      INSERT INTO data_ft VALUES('a', 'b', 24, 100, 0);  -- insert
    }
    db eval { SELECT a, b, rowid, langid FROM ft }
  } [list {*}{
    a b 22 1
    a b 23 10
    a b 24 100
  }]
  
  # Or not - this data_xxx table has no langid column, so langid 
  # defaults to 0.
  #
  do_test 2.2 {
    apply_rbu {
      CREATE TABLE data_ft(a, b, rbu_rowid, rbu_control);
      INSERT INTO data_ft VALUES('a', 'b', 25, 0);    -- insert
    }
    db eval { SELECT a, b, rowid, langid FROM ft }
  } [list {*}{
    a b 22 1
    a b 23 10
    a b 24 100
    a b 25 0
  }]
  
  # Update langid.
  #
  do_test 2.3 {
    apply_rbu {
      CREATE TABLE data_ft(a, b, rbu_rowid, langid, rbu_control);
      INSERT INTO data_ft VALUES(NULL, NULL, 23, 50, '..x');
      INSERT INTO data_ft VALUES(NULL, NULL, 25, 500, '..x');
    }
    db eval { SELECT a, b, rowid, langid FROM ft }
  } [list {*}{
    a b 22 1
    a b 23 50
    a b 24 100
    a b 25 500
  }]
}

#--------------------------------------------------------------------
# Test that if writing a hidden virtual table column is an error, 
# attempting to do so via rbu is also an error.
#
ifcapable fts3 {
  do_execsql_test 3.0 {
    CREATE VIRTUAL TABLE xt USING fts4(a);
  }
  do_test 3.1 {
    list [catch {
      apply_rbu {
        CREATE TABLE data_xt(a, xt, rbu_rowid, rbu_control);
        INSERT INTO data_xt VALUES('a', 'b', 1, 0);
      }
    } msg] $msg
  } {1 {SQLITE_ERROR - SQL logic error}}
}

#--------------------------------------------------------------------
# Test that it is not possible to violate a NOT NULL constraint by
# applying an RBU update.
#
do_execsql_test 4.1 {
  CREATE TABLE t2(a INTEGER NOT NULL, b TEXT NOT NULL, c PRIMARY KEY);
  CREATE TABLE t3(a INTEGER NOT NULL, b TEXT NOT NULL, c INTEGER PRIMARY KEY);
  CREATE TABLE t4(a, b, PRIMARY KEY(a, b)) WITHOUT ROWID;

  INSERT INTO t2 VALUES(10, 10, 10);
  INSERT INTO t3 VALUES(10, 10, 10);
  INSERT INTO t4 VALUES(10, 10);
}

foreach {tn error rbu} {
  2 {SQLITE_CONSTRAINT - NOT NULL constraint failed: t2.a} {
    INSERT INTO data_t2 VALUES(NULL, 'abc', 1, 0);
  }
  3 {SQLITE_CONSTRAINT - NOT NULL constraint failed: t2.b} {
    INSERT INTO data_t2 VALUES(2, NULL, 1, 0);
  }
  4 {SQLITE_CONSTRAINT - NOT NULL constraint failed: t2.c} {
    INSERT INTO data_t2 VALUES(1, 'abc', NULL, 0);
  }

  5 {SQLITE_MISMATCH - datatype mismatch} {
    INSERT INTO data_t3 VALUES(1, 'abc', NULL, 0);
  }

  6 {SQLITE_CONSTRAINT - NOT NULL constraint failed: t4.b} {
    INSERT INTO data_t4 VALUES('a', NULL, 0);
  }
  7 {SQLITE_CONSTRAINT - NOT NULL constraint failed: t4.a} {
    INSERT INTO data_t4 VALUES(NULL, 'a', 0);
  }
  8  {SQLITE_CONSTRAINT - NOT NULL constraint failed: t2.a} {
    INSERT INTO data_t2 VALUES(NULL, 0, 10, 'x..');
  }
  9  {SQLITE_CONSTRAINT - NOT NULL constraint failed: t3.b} {
    INSERT INTO data_t3 VALUES(10, NULL, 10, '.x.');
  }

  10 {SQLITE_MISMATCH - datatype mismatch} {
    INSERT INTO data_t3 VALUES(1, 'abc', 'text', 0);
  }
} {
  set rbu "
    CREATE TABLE data_t2(a, b, c, rbu_control);
    CREATE TABLE data_t3(a, b, c, rbu_control);
    CREATE TABLE data_t4(a, b, rbu_control);
    $rbu
  "
  do_test 4.2.$tn {
    list [catch { apply_rbu $rbu } msg] $msg
  } [list 1 $error]
}

do_test 4.3 {
  set rbu {
    CREATE TABLE data_t3(a, b, c, rbu_control);
    INSERT INTO data_t3 VALUES(1, 'abc', '5', 0);
    INSERT INTO data_t3 VALUES(1, 'abc', '-6.0', 0);
  }
  list [catch { apply_rbu $rbu } msg] $msg
} {0 SQLITE_DONE}


finish_test