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

Artifact b99db7e57ee66fb3aa6e5d25af119003bee90bf679c5885711cbf7374f025b73:


# 2016-06-02
#
# 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.
#
#***********************************************************************
# 
# Test cases for CSV virtual table.

set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix csv01

ifcapable !vtab||!cte { finish_test ; return }

load_static_extension db csv

do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE temp.t1 USING csv(
    data=
'1,2,3,4
5,6,7,8
9,10,11,12
13,14,15,16
',
    columns=4
  );
  SELECT * FROM t1 WHERE c1=10;
} {9 10 11 12}
do_execsql_test 1.1 {
  SELECT * FROM t1 WHERE c1='10';
} {9 10 11 12}
do_execsql_test 1.2 {
  SELECT rowid FROM t1;
} {1 2 3 4}

do_execsql_test 2.0 {
  DROP TABLE t1;
  CREATE VIRTUAL TABLE temp.t2 USING csv(
    data=
'1,2,3,4
5,6,7,8
9,10,11,12
13,14,15,16
',
    columns=4,
    schema='CREATE TABLE t2(a INT, b TEXT, c REAL, d BLOB)'
  );
  SELECT * FROM t2 WHERE a=9;
} {9 10 11 12}
do_execsql_test 2.1 {
  SELECT * FROM t2 WHERE b=10;
} {9 10 11 12}
do_execsql_test 2.2 {
  SELECT * FROM t2 WHERE c=11;
} {9 10 11 12}
do_execsql_test 2.3 {
  SELECT * FROM t2 WHERE d=12;
} {}
do_execsql_test 2.4 {
  SELECT * FROM t2 WHERE d='12';
} {9 10 11 12}
do_execsql_test 2.5 {
  SELECT * FROM t2 WHERE a='9';
} {9 10 11 12}

do_execsql_test 3.0 {
  DROP TABLE t2;
  CREATE VIRTUAL TABLE temp.t3 USING csv(
    data=
'1,2,3,4
5,6,7,8
9,10,11,12
13,14,15,16
',
    columns=4,
    schema=
      'CREATE TABLE t3(a PRIMARY KEY,b TEXT,c TEXT,d TEXT) WITHOUT ROWID',
    testflags=1
  );
  SELECT a FROM t3 WHERE b=6 OR c=7 OR d=12 ORDER BY +a;
} {5 9}
do_execsql_test 3.1 {
  SELECT a FROM t3 WHERE +b=6 OR c=7 OR d=12 ORDER BY +a;
} {5 9}

# The rowid column is not visible on a WITHOUT ROWID virtual table
do_catchsql_test 3.2 {
  SELECT rowid, a FROM t3;
} {1 {no such column: rowid}}

# Multi-column WITHOUT ROWID virtual tables may not be writable.
do_catchsql_test 4.0 {
  DROP TABLE t3;
  CREATE VIRTUAL TABLE temp.t4 USING csv_wr(
    data=
'1,2,3,4
5,6,7,8
9,10,11,12
13,14,15,16',
    columns=4,
    schema=
      'CREATE TABLE t3(a,b,c,d,PRIMARY KEY(a,b)) WITHOUT ROWID',
    testflags=1
  );
} {1 {vtable constructor failed: t4}}

# WITHOUT ROWID tables with a single-column PRIMARY KEY may be writable.
do_catchsql_test 4.1 {
  DROP TABLE IF EXISTS t4;
  CREATE VIRTUAL TABLE temp.t4 USING csv_wr(
    data=
'1,2,3,4
5,6,7,8
9,10,11,12
13,14,15,16',
    columns=4,
    schema=
      'CREATE TABLE t3(a,b,c,d,PRIMARY KEY(b)) WITHOUT ROWID',
    testflags=1
  );
} {0 {}}

do_catchsql_test 4.2 {
  DROP TABLE IF EXISTS t5;
  CREATE VIRTUAL TABLE temp.t5 USING csv_wr(
      data=
      '1,2,3,4
      5,6,7,8
      9,10,11,12
      13,14,15,16',
      columns=4,
      schema=
      'CREATE TABLE t3(a,b,c,d) WITHOUT ROWID',
      testflags=1
      );
} {1 {vtable constructor failed: t5}}

# 2018-04-24
# Memory leak reported on the sqlite-users mailing list by Ralf Junker.
#
do_catchsql_test 4.3 {
  CREATE VIRTUAL TABLE IF NOT EXISTS temp.t1
  USING csv(filename='FileDoesNotExist.csv');
} {1 {cannot open 'FileDoesNotExist.csv' for reading}}

finish_test