sqlite/test/fts3ah.test
dan 4f7c5e684a Experimental changes to fts4 to try to selectively avoid loading very large doclists.
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2010-10-19 14:07:59 +00:00

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# 2006 October 31
#
# 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
# here is testing correct handling of very long terms.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
ifcapable !fts3 {
finish_test
return
}
# Generate a document of bigterms based on characters from the list
# chars.
proc bigtermdoc {chars len} {
set doc ""
foreach char $chars {
append doc " " [string repeat $char $len]
}
return $doc
}
set len 5000
set doc1 [bigtermdoc {a b c d} $len]
set doc2 [bigtermdoc {b d e f} $len]
set doc3 [bigtermdoc {a c e} $len]
set aterm [string repeat a $len]
set bterm [string repeat b $len]
set xterm [string repeat x $len]
db eval {
CREATE VIRTUAL TABLE t1 USING fts3(content);
INSERT INTO t1 (rowid, content) VALUES(1, $doc1);
INSERT INTO t1 (rowid, content) VALUES(2, $doc2);
INSERT INTO t1 (rowid, content) VALUES(3, $doc3);
}
# No hits at all. Returns empty doclists from termSelect().
do_test fts3ah-1.1 {
execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'something'}
} {}
do_test fts3ah-1.2 {
execsql {SELECT rowid FROM t1 WHERE t1 MATCH $aterm}
} {1 3}
do_test fts3ah-1.2 {
execsql {SELECT rowid FROM t1 WHERE t1 MATCH $xterm}
} {}
do_test fts3ah-1.3 {
execsql "SELECT rowid FROM t1 WHERE t1 MATCH '$aterm -$xterm'"
} {1 3}
do_test fts3ah-1.4 {
execsql "SELECT rowid FROM t1 WHERE t1 MATCH '\"$aterm $bterm\"'"
} {1}
finish_test