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

Artifact 218d351cf9fcd6648f125a26b607b140310160184723c2666091b54450a68fb5:


# 2018 January 12
#
# 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 [file join [file dirname [info script]] session_common.tcl]
source $testdir/tester.tcl
ifcapable !session {finish_test; return}

set testprefix sessionstat1

do_execsql_test 1.0 {
  CREATE TABLE t1(a PRIMARY KEY, b, c);
  CREATE INDEX t1b ON t1(b);
  CREATE INDEX t1c ON t1(c);

  WITH s(i) AS (
    SELECT 0 UNION ALL SELECT i+1 FROM s WHERE (i+1)<32
  )
  INSERT INTO t1 SELECT i, i%8, i%2 FROM s;
}

do_iterator_test 1.1 {} {
  ANALYZE
} {
  {INSERT sqlite_stat1 0 XX. {} {t t1 t sqlite_autoindex_t1_1 t {32 1}}}
  {INSERT sqlite_stat1 0 XX. {} {t t1 t t1b t {32 4}}} 
  {INSERT sqlite_stat1 0 XX. {} {t t1 t t1c t {32 16}}}
}

do_execsql_test 1.2 {
  WITH s(i) AS (
    SELECT 32 UNION ALL SELECT i+1 FROM s WHERE (i+1)<64
  )
  INSERT INTO t1 SELECT i, i%8, i%2 FROM s;
}

do_iterator_test 1.3 {} {
  ANALYZE
} {
  {UPDATE sqlite_stat1 0 XX. {t t1 t sqlite_autoindex_t1_1 t {32 1}} {{} {} {} {} t {64 1}}} 
  {UPDATE sqlite_stat1 0 XX. {t t1 t t1b t {32 4}} {{} {} {} {} t {64 8}}} 
  {UPDATE sqlite_stat1 0 XX. {t t1 t t1c t {32 16}} {{} {} {} {} t {64 32}}}
}

do_iterator_test 1.5 {} {
  DROP INDEX t1b;
} {
  {DELETE sqlite_stat1 0 XX. {t t1 t t1b t {64 8}} {}}
}

do_iterator_test 1.6 {} {
  DROP TABLE t1;
} {
  {DELETE sqlite_stat1 0 XX. {t t1 t sqlite_autoindex_t1_1 t {64 1}} {}}
  {DELETE sqlite_stat1 0 XX. {t t1 t t1c t {64 32}} {}}
}

#-------------------------------------------------------------------------
#
catch { db2 close }
forcedelete test.db2
sqlite3 db2 test.db2

do_test 2.0 {
  do_common_sql {
    CREATE TABLE t1(a PRIMARY KEY, b, c);
    CREATE INDEX t1b ON t1(b);
    CREATE INDEX t1c ON t1(c);
    ANALYZE;
  }
} {}

do_test 2.1 {
  do_then_apply_sql {
    WITH s(i) AS (
        SELECT 0 UNION ALL SELECT i+1 FROM s WHERE (i+1)<32
    )
    INSERT INTO t1 SELECT i, i%8, i%2 FROM s;
    ANALYZE;
  }
} {}

do_execsql_test -db db2 2.2 {
  SELECT * FROM sqlite_stat1
} {
  t1 sqlite_autoindex_t1_1 {32 1} 
  t1 t1b {32 4} 
  t1 t1c {32 16}
}

do_test 2.3 {
  do_then_apply_sql { DROP INDEX t1c }
} {}

do_execsql_test -db db2 2.4 {
  SELECT * FROM sqlite_stat1
} {
  t1 sqlite_autoindex_t1_1 {32 1} 
  t1 t1b {32 4} 
}

do_test 2.3 {
  do_then_apply_sql { DROP TABLE t1 }
} {}

do_execsql_test -db db2 2.4 {
  SELECT * FROM sqlite_stat1
} {
}

do_execsql_test -db db2 2.5 { SELECT count(*) FROM t1 } 32

#-------------------------------------------------------------------------
db2 close
forcedelete test.db2
reset_db
sqlite3 db2 test.db2

do_test 3.0 {
  do_common_sql {
    CREATE TABLE t1(a, b, c);
    ANALYZE;
    DELETE FROM sqlite_stat1;
  }
  execsql {
    INSERT INTO t1 VALUES(1, 1, 1);
    INSERT INTO t1 VALUES(2, 2, 2);
    INSERT INTO t1 VALUES(3, 3, 3);
    INSERT INTO t1 VALUES(4, 4, 4);
  }
} {} 

do_iterator_test 3.1 {} {
  ANALYZE
} {
  {INSERT sqlite_stat1 0 XX. {} {t t1 b {} t 4}}
}
db null null
db2 null null
do_execsql_test 3.2 {
  SELECT * FROM sqlite_stat1;
} {t1 null 4}
do_test 3.3 {
  execsql { DELETE FROM sqlite_stat1 }
  do_then_apply_sql { ANALYZE }
  execsql { SELECT * FROM sqlite_stat1 } db2
} {t1 null 4}
do_test 3.4 {
  execsql { INSERT INTO t1 VALUES(5,5,5) }
  do_then_apply_sql { ANALYZE }
  execsql { SELECT * FROM sqlite_stat1 } db2
} {t1 null 5}
do_test 3.5 {
  do_then_apply_sql { DROP TABLE t1 }
  execsql { SELECT * FROM sqlite_stat1 } db2
} {}

do_test 3.6.1 {
  execsql { 
    CREATE TABLE t1(a, b, c);
    CREATE TABLE t2(x, y, z);
    INSERT INTO t1 VALUES(1,1,1), (2,2,2), (3,3,3), (4,4,4), (5,5,5);
    INSERT INTO t2 SELECT * FROM t1;
    DELETE FROM sqlite_stat1;
  }
  sqlite3session S db main
  S attach sqlite_stat1
  execsql { ANALYZE }
} {}
do_changeset_test 3.6.2 S {
  {INSERT sqlite_stat1 0 XX. {} {t t2 b {} t 5}}
  {INSERT sqlite_stat1 0 XX. {} {t t1 b {} t 5}}
}
do_changeset_invert_test 3.6.3 S {
  {DELETE sqlite_stat1 0 XX. {t t2 b {} t 5} {}}
  {DELETE sqlite_stat1 0 XX. {t t1 b {} t 5} {}}
}
do_test 3.6.4 { S delete } {}

proc sql_changeset_concat {args} {
  foreach sql $args {
    sqlite3session S db main
    S attach sqlite_stat1
    execsql $sql
    set change [S changeset]
    S delete

    if {[info vars ret]!=""} {
      set ret [sqlite3changeset_concat $ret $change]
    } else {
      set ret $change
    }
  }

  changeset_to_list $ret
}

proc do_scc_test {tn args} {
  uplevel [list \
    do_test $tn [concat sql_changeset_concat [lrange $args 0 end-1]] \
    [list {*}[ lindex $args end ]]
  ]
}

do_execsql_test 3.7.0 {
  DELETE FROM sqlite_stat1;
}
do_scc_test 3.7.1 {
  ANALYZE;
} {
  INSERT INTO t2 VALUES(6,6,6);
  ANALYZE;
} {
  {INSERT sqlite_stat1 0 XX. {} {t t1 b {} t 5}}
  {INSERT sqlite_stat1 0 XX. {} {t t2 b {} t 6}}
}

#-------------------------------------------------------------------------
catch { db2 close }
reset_db
forcedelete test.db2
sqlite3 db2 test.db2

do_test 4.1.0 {
  do_common_sql {
    CREATE TABLE t1(a, b);
    CREATE INDEX i1 ON t1(a);
    CREATE INDEX i2 ON t1(b);
    INSERT INTO t1 VALUES(1,1), (2,2);
    ANALYZE;
  }
  execsql { DELETE FROM sqlite_stat1 }
} {}

do_test 4.1.1 {
  execsql { INSERT INTO t1 VALUES(3,3); }
  set C [changeset_from_sql {ANALYZE}]
  set ::c [list]
  proc xConflict {args} {
    lappend ::c $args
    return "OMIT"
  }
  sqlite3changeset_apply db2 $C xConflict
  set ::c
} [list {*}{
  {INSERT sqlite_stat1 CONFLICT {t t1 t i1 t {3 1}} {t t1 t i1 t {2 1}}}
  {INSERT sqlite_stat1 CONFLICT {t t1 t i2 t {3 1}} {t t1 t i2 t {2 1}}}
}]

do_execsql_test -db db2 4.1.2 {
  SELECT * FROM sqlite_stat1 ORDER BY 1,2;
} {t1 i1 {2 1} t1 i2 {2 1}}

do_test 4.1.3 {
  proc xConflict {args} {
    return "REPLACE"
  }
  sqlite3changeset_apply db2 $C xConflict
  execsql { SELECT * FROM sqlite_stat1 ORDER BY 1,2 } db2
} {t1 i1 {3 1} t1 i2 {3 1}}

do_test 4.2.0 {
  do_common_sql { 
    DROP TABLE t1;
    CREATE TABLE t3(x,y);
    INSERT INTO t3 VALUES('a','a');
    INSERT INTO t3 VALUES('b','b');
    ANALYZE;
  }
  execsql { DELETE FROM sqlite_stat1 }
} {}
do_test 4.2.1 {
  execsql { INSERT INTO t3 VALUES('c','c'); }
  set C [changeset_from_sql {ANALYZE}]
  set ::c [list]
  proc xConflict {args} {
    lappend ::c $args
    return "OMIT"
  }
  sqlite3changeset_apply db2 $C xConflict
  set ::c
} [list {*}{
  {INSERT sqlite_stat1 CONFLICT {t t3 b {} t 3} {t t3 b {} t 2}}
}]

db2 null null
do_execsql_test -db db2 4.2.2 {
  SELECT * FROM sqlite_stat1 ORDER BY 1,2;
} {t3 null 2}

do_test 4.2.3 {
  proc xConflict {args} {
    return "REPLACE"
  }
  sqlite3changeset_apply db2 $C xConflict
  execsql { SELECT * FROM sqlite_stat1 ORDER BY 1,2 } db2
} {t3 null 3}

finish_test