# 2014 June 17
#
# 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.
#
#*************************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this script is testing the FTS5 module.
#

source [file join [file dirname [info script]] fts5_common.tcl]
set testprefix fts5leftjoin

# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}

do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE vt USING fts5(x);
  INSERT INTO vt VALUES('abc');
  INSERT INTO vt VALUES('xyz');

  CREATE TABLE t1(a INTEGER PRIMARY KEY);
  INSERT INTO t1 VALUES(1), (2);
}

do_execsql_test 1.1 {
  SELECT * FROM t1 LEFT JOIN (
    SELECT rowid AS rrr, * FROM vt WHERE vt MATCH 'abc'
  ) ON t1.a = rrr
} {1 1 abc 2 {} {}}

do_execsql_test 1.2 {
  SELECT * FROM t1 LEFT JOIN vt ON (vt MATCH 'abc')
} {1 abc 2 abc}


do_execsql_test 1.3 {
  DELETE FROM t1;
  INSERT INTO t1 VALUES(14);
}

do_execsql_test 1.4 {
  SELECT * FROM vt LEFT JOIN t1 ON vt.rowid = 1;
} {
  abc 14
  xyz {}
}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 2.0 {
  CREATE VIRTUAL TABLE t0 USING fts5(a,b);
  INSERT INTO t0(a,b)VALUES(1,0);
  CREATE TABLE t1(x);
}

do_execsql_test 2.1 {
  SELECT * FROM t0 LEFT JOIN t1;
} {1 0 {}}

breakpoint
do_catchsql_test 2.2 {
  SELECT * FROM t0 LEFT JOIN t1 ON t0.b MATCH '1';
} {1 {no query solution}}

do_execsql_test 2.3 {
  SELECT * FROM t0 LEFT JOIN t1 ON +b MATCH '1';
} {1 0 {}}

#-------------------------------------------------------------------------
reset_db

do_execsql_test 3.0 {
  CREATE VIRTUAL TABLE t0 USING fts5(c0, c1);
  INSERT INTO t0(c0,c1) VALUES (1,0);
}

do_catchsql_test 3.1 {
  SELECT * FROM  t0 
  LEFT JOIN ( SELECT 0 AS col_0 ) 
  ON ((((t0.c1 MATCH '1')AND(CASE WHEN t0.c0 THEN CAST(t0.c1 AS INTEGER) ELSE 1 END))));
} {1 {no query solution}}


finish_test