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# 2014 Dec 20
#
# 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 contains tests for the content= and content_rowid= options.
#

source [file join [file dirname [info script]] fts5_common.tcl]
set testprefix fts5content

# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}

#-------------------------------------------------------------------------
# Contentless tables
#
do_execsql_test 1.1 {
  CREATE VIRTUAL TABLE f1 USING fts5(a, b, content='');
  INSERT INTO f1(rowid, a, b) VALUES(1, 'one',   'o n e');
  INSERT INTO f1(rowid, a, b) VALUES(2, 'two',   't w o');
  INSERT INTO f1(rowid, a, b) VALUES(3, 'three', 't h r e e');
}

do_execsql_test 1.2 {
  SELECT rowid FROM f1 WHERE f1 MATCH 'o';
} {1 2}

do_execsql_test 1.3 {
  INSERT INTO f1(a, b) VALUES('four',   'f o u r');
  SELECT rowid FROM f1 WHERE f1 MATCH 'o';
} {1 2 4}

do_execsql_test 1.4 {
  SELECT rowid, a, b FROM f1 WHERE f1 MATCH 'o';
} {1 {} {} 2 {} {} 4 {} {}}

do_execsql_test 1.5 {
  SELECT rowid, highlight(f1, 0, '[', ']') FROM f1 WHERE f1 MATCH 'o';
} {1 {} 2 {} 4 {}}

do_execsql_test 1.6 {
  SELECT rowid, highlight(f1, 0, '[', ']') IS NULL FROM f1 WHERE f1 MATCH 'o';
} {1 1 2 1 4 1}

do_execsql_test 1.7 {
  SELECT rowid, snippet(f1, -1, '[', ']', '...', 5) IS NULL 
  FROM f1 WHERE f1 MATCH 'o';
} {1 1 2 1 4 1}

do_execsql_test 1.8 {
  SELECT rowid, snippet(f1, 1, '[', ']', '...', 5) IS NULL 
  FROM f1 WHERE f1 MATCH 'o';
} {1 1 2 1 4 1}

do_execsql_test 1.9 {
  SELECT rowid FROM f1;
} {1 2 3 4}

do_execsql_test 1.10 {
  SELECT * FROM f1;
} {{} {}  {} {}  {} {}  {} {}}

do_execsql_test 1.11 {
  SELECT rowid, a, b FROM f1 ORDER BY rowid ASC;
} {1 {} {}  2 {} {}  3 {} {}  4 {} {}}

do_execsql_test 1.12 {
  SELECT a IS NULL FROM f1;
} {1 1 1 1}

do_catchsql_test 1.13 {
  DELETE FROM f1 WHERE rowid = 2;
} {1 {cannot DELETE from contentless fts5 table: f1}}

do_catchsql_test 1.14 {
  UPDATE f1 SET a = 'a b c' WHERE rowid = 2;
} {1 {cannot UPDATE contentless fts5 table: f1}}

do_execsql_test 1.15 {
  INSERT INTO f1(f1, rowid, a, b) VALUES('delete', 2, 'two', 't w o');
} {}

do_execsql_test 1.16 {
  SELECT rowid FROM f1 WHERE f1 MATCH 'o';
} {1 4}

do_execsql_test 1.17 {
  SELECT rowid FROM f1;
} {1 3 4}

#-------------------------------------------------------------------------
# External content tables
#
reset_db
do_execsql_test 2.1 {
  -- Create a table. And an external content fts5 table to index it.
  CREATE TABLE tbl(a INTEGER PRIMARY KEY, b, c);
  CREATE VIRTUAL TABLE fts_idx USING fts5(b, c, content='tbl', content_rowid='a');

  -- Triggers to keep the FTS index up to date.
  CREATE TRIGGER tbl_ai AFTER INSERT ON tbl BEGIN
    INSERT INTO fts_idx(rowid, b, c) VALUES (new.a, new.b, new.c);
  END;
  CREATE TRIGGER tbl_ad AFTER DELETE ON tbl BEGIN
    INSERT INTO fts_idx(fts_idx, rowid, b, c) 
        VALUES('delete', old.a, old.b, old.c);
  END;
  CREATE TRIGGER tbl_au AFTER UPDATE ON tbl BEGIN
    INSERT INTO fts_idx(fts_idx, rowid, b, c) 
        VALUES('delete', old.a, old.b, old.c);
    INSERT INTO fts_idx(rowid, b, c) VALUES (new.a, new.b, new.c);
  END;
}

do_execsql_test 2.2 {
  INSERT INTO tbl VALUES(1, 'one', 'o n e');
  INSERT INTO tbl VALUES(NULL, 'two', 't w o');
  INSERT INTO tbl VALUES(3, 'three', 't h r e e');
}

do_execsql_test 2.3 {
  INSERT INTO fts_idx(fts_idx) VALUES('integrity-check');
}

do_execsql_test 2.4 {
  DELETE FROM tbl WHERE rowid=2;
  INSERT INTO fts_idx(fts_idx) VALUES('integrity-check');
}

do_execsql_test 2.5 {
  UPDATE tbl SET c = c || ' x y z';
  INSERT INTO fts_idx(fts_idx) VALUES('integrity-check');
}

do_execsql_test 2.6 {
  SELECT * FROM fts_idx WHERE fts_idx MATCH 't AND x';
} {three {t h r e e x y z}}

do_execsql_test 2.7 {
  SELECT highlight(fts_idx, 1, '[', ']') FROM fts_idx 
  WHERE fts_idx MATCH 't AND x';
} {{[t] h r e e [x] y z}}

#-------------------------------------------------------------------------
# Quick tests of the 'delete-all' command.
#
do_execsql_test 3.1 {
  CREATE VIRTUAL TABLE t3 USING fts5(x, content='');
  INSERT INTO t3 VALUES('a b c');
  INSERT INTO t3 VALUES('d e f');
}

do_execsql_test 3.2 {
  SELECT count(*) FROM t3_docsize;
  SELECT count(*) FROM t3_data;
} {2 4}

do_execsql_test 3.3 {
  INSERT INTO t3(t3) VALUES('delete-all');
  SELECT count(*) FROM t3_docsize;
  SELECT count(*) FROM t3_data;
} {0 2}

do_execsql_test 3.4 {
  INSERT INTO t3 VALUES('a b c');
  INSERT INTO t3 VALUES('d e f');
  SELECT rowid FROM t3 WHERE t3 MATCH 'e';
} {2}

do_execsql_test 3.5 {
  SELECT rowid FROM t3 WHERE t3 MATCH 'c';
} {1}

do_execsql_test 3.6 {
  SELECT count(*) FROM t3_docsize;
  SELECT count(*) FROM t3_data;
} {2 4}

do_execsql_test 3.7 {
  CREATE VIRTUAL TABLE t4 USING fts5(x);
} {}
do_catchsql_test 3.8 {
  INSERT INTO t4(t4) VALUES('delete-all');
} {1 {'delete-all' may only be used with a contentless or external content fts5 table}}

#-------------------------------------------------------------------------
# Test an external content table with a more interesting schema.
#
do_execsql_test 4.1 {
  CREATE TABLE x2(a, "key col" PRIMARY KEY, b, c) WITHOUT ROWID;
  INSERT INTO x2 VALUES('a b',   1, 'c d' , 'e f');
  INSERT INTO x2 VALUES('x y', -40, 'z z' , 'y x');

  CREATE VIRTUAL TABLE t2 USING fts5(a, c, content=x2, content_rowid='key col');
  INSERT INTO t2(t2) VALUES('rebuild');
}

do_execsql_test 4.2 { SELECT rowid FROM t2 } {-40 1}
do_execsql_test 4.3 { SELECT rowid FROM t2 WHERE t2 MATCH 'c'} {}
do_execsql_test 4.4 { SELECT rowid FROM t2 WHERE t2 MATCH 'a'} {1}
do_execsql_test 4.5 { SELECT rowid FROM t2 WHERE t2 MATCH 'x'} {-40}

do_execsql_test 4.6 { INSERT INTO t2(t2) VALUES('integrity-check') } {}

do_execsql_test 4.7 { 
  DELETE FROM x2 WHERE "key col" = 1;
  INSERT INTO t2(t2, rowid, a, c) VALUES('delete', 1, 'a b', 'e f');
  INSERT INTO t2(t2) VALUES('integrity-check');
}

do_execsql_test 4.8 { SELECT rowid FROM t2 WHERE t2 MATCH 'b'} {}
do_execsql_test 4.9 { SELECT rowid FROM t2 WHERE t2 MATCH 'y'} {-40}

#-------------------------------------------------------------------------
# Test that if the 'rowid' field of a 'delete' is not an integer, no
# changes are made to the FTS index.
#
do_execsql_test 5.0 {
  CREATE VIRTUAL TABLE t5 USING fts5(a, b, content=);
  INSERT INTO t5(rowid, a, b) VALUES(-1, 'one',   'two');
  INSERT INTO t5(rowid, a, b) VALUES( 0, 'three', 'four');
  INSERT INTO t5(rowid, a, b) VALUES( 1, 'five',  'six');
}

set ::checksum [execsql {SELECT md5sum(id, block) FROM t5_data}]

do_execsql_test 5.1 {
  INSERT INTO t5(t5, rowid, a, b) VALUES('delete', NULL, 'three', 'four');
  SELECT md5sum(id, block) FROM t5_data;
} $::checksum


#-------------------------------------------------------------------------
# Check that a contentless table can be dropped.
#
reset_db
do_execsql_test 6.1 {
  CREATE VIRTUAL TABLE xx USING fts5(x, y, content="");
  SELECT name FROM sqlite_master;
} {xx xx_data xx_idx xx_docsize xx_config}
do_execsql_test 6.2 {
  DROP TABLE xx;
  SELECT name FROM sqlite_master;
} {}


finish_test