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

Artifact db0dbf03c49030aa3c1ba5f618620334bd2baf5f:


# 2014-12-28
#
# 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.
#
#***********************************************************************
#
# Verify that WITHOUT ROWID tables work correctly when the PRIMARY KEY
# has redundant columns.
#

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

do_execsql_test without_rowid6-100 {
  CREATE TABLE t1(a,b,c,d,e, PRIMARY KEY(a,b,c,a,b,c,d,a,b,c)) WITHOUT ROWID;
  CREATE INDEX t1a ON t1(b, b);
  WITH RECURSIVE
    c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<1000)
  INSERT INTO t1(a,b,c,d,e) SELECT i, i+1000, printf('x%dy',i), 0, 0 FROM c;
  ANALYZE;
} {}
do_execsql_test without_rowid6-110 {
  SELECT c FROM t1 WHERE a=123;
} {x123y}
do_execsql_test without_rowid6-120 {
  SELECT c FROM t1 WHERE b=1123;
} {x123y}
do_execsql_test without_rowid6-130 {
  SELECT c FROM t1 ORDER BY a DESC LIMIT 5;
} {x1000y x999y x998y x997y x996y}
do_execsql_test without_rowid6-140 {
  SELECT c FROM t1 ORDER BY b LIMIT 5;
} {x1y x2y x3y x4y x5y}

# Column t1.b starts out as a unique index, but that index is
# subsequently converted into a PRIMARY KEY.
#
do_execsql_test without_rowid6-200 {
  DROP TABLE IF EXISTS t1;
  CREATE TABLE t1(
    a UNIQUE,
    b UNIQUE,
    c UNIQUE,
    PRIMARY KEY(b)
  ) WITHOUT ROWID;
  INSERT INTO t1(a,b,c) VALUES(1,8,3),(4,5,6),(7,2,9);
  SELECT a FROM t1 WHERE b>3 ORDER BY b;
} {4 1}
do_execsql_test without_rowid6-210 {
  EXPLAIN QUERY PLAN
  SELECT a FROM t1 WHERE b>3 ORDER BY b;
} {/SEARCH TABLE t1 USING PRIMARY KEY .b>../}
do_execsql_test without_rowid6-220 {
  PRAGMA index_list(t1);
} {/sqlite_autoindex_t1_2 1 pk/}

do_execsql_test without_rowid6-300 {
  DROP TABLE IF EXISTS t1;
  CREATE TABLE t1(
    a UNIQUE,
    b PRIMARY KEY,
    c UNIQUE,
    UNIQUE(b)
  ) WITHOUT ROWID;
  INSERT INTO t1(a,b,c) VALUES(1,8,3),(4,5,6),(7,2,9);
  SELECT a FROM t1 WHERE b>3 ORDER BY b;
} {4 1}
do_execsql_test without_rowid6-310 {
  EXPLAIN QUERY PLAN
  SELECT a FROM t1 WHERE b>3 ORDER BY b;
} {/SEARCH TABLE t1 USING PRIMARY KEY .b>../}
do_execsql_test without_rowid6-320 {
  PRAGMA index_list(t1);
} {/sqlite_autoindex_t1_2 1 pk/}

do_execsql_test without_rowid6-400 {
  DROP TABLE IF EXISTS t1;
  CREATE TABLE t1(
    a UNIQUE,
    b UNIQUE PRIMARY KEY,
    c UNIQUE
  ) WITHOUT ROWID;
  INSERT INTO t1(a,b,c) VALUES(1,8,3),(4,5,6),(7,2,9);
  SELECT a FROM t1 WHERE b>3 ORDER BY b;
} {4 1}
do_execsql_test without_rowid6-410 {
  EXPLAIN QUERY PLAN
  SELECT a FROM t1 WHERE b>3 ORDER BY b;
} {/SEARCH TABLE t1 USING PRIMARY KEY .b>../}
do_execsql_test without_rowid6-420 {
  PRAGMA index_list(t1);
} {/sqlite_autoindex_t1_2 1 pk/}

do_execsql_test without_rowid6-500 {
  DROP TABLE IF EXISTS t1;
  CREATE TABLE t1(a,b,c,
    UNIQUE(b,c),
    PRIMARY KEY(b,c)
  ) WITHOUT ROWID;
  INSERT INTO t1(a,b,c) VALUES(1,8,3),(4,5,6),(7,2,9);
  SELECT a FROM t1 WHERE b>3 ORDER BY b;
} {4 1}
do_execsql_test without_rowid6-510 {
  EXPLAIN QUERY PLAN
  SELECT a FROM t1 WHERE b>3 ORDER BY b;
} {/SEARCH TABLE t1 USING PRIMARY KEY .b>../}
do_execsql_test without_rowid6-520 {
  PRAGMA index_list(t1);
} {/sqlite_autoindex_t1_1 1 pk/}


finish_test