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Overview
| Comment: | Copy the new version of script "like.test" from sqlite3 to this project. Then tweak it to work. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
146846406926284ee51e0b868447baf6 |
| User & Date: | dan 2013-07-04 18:44:53 |
Context
|
2013-07-06
| ||
| 03:59 | Display sqlite4_nums correctly when explaining query plans. check-in: 40b76362c9 user: peterreid tags: trunk | |
|
2013-07-04
| ||
| 18:44 | Copy the new version of script "like.test" from sqlite3 to this project. Then tweak it to work. check-in: 1468464069 user: dan tags: trunk | |
| 17:17 | Fix a problem with reading utf-8 encoded text values from the database when the first byte of the text is 0x02. check-in: 2711bdb5fd user: dan tags: trunk | |
Changes
Changes to test/like.test.
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execsql {
SELECT x FROM t1 WHERE x REGEXP '^abc' ORDER BY 1;
}
} {abc abcd}
# Tests of the MATCH operator
#
do_test like-2.3 {
proc test_match {a b} {
return [string match $a $b]
}
db function match -argcount 2 test_match
execsql {
SELECT x FROM t1 WHERE x MATCH '*abc*' ORDER BY 1;
}
} {{ABC abc xyz} abc abcd}
do_test like-2.4 {
execsql {
SELECT x FROM t1 WHERE x MATCH 'abc*' ORDER BY 1;
}
} {abc abcd}
# For the remaining tests, we need to have the like optimizations
# enabled.
#
ifcapable !like_opt {
finish_test
return
}
# This procedure executes the SQL. Then it appends to the result the
# "sort" or "nosort" keyword (as in the cksort procedure above) then
# it appends the ::sqlite_query_plan variable.
#
proc queryplan {sql} {
set ::sqlite_sort_count 0
set data [execsql $sql]
if {$::sqlite_sort_count} {set x sort} {set x nosort}
lappend data $x
return [concat $data $::sqlite_query_plan]
}
# Perform tests on the like optimization.
#
# With no index on t1.x and with case sensitivity turned off, no optimization
# is performed.
#
do_test like-3.1 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1;
}
} {ABC {ABC abc xyz} abc abcd sort t1 {}}
do_test like-3.2 {
set sqlite_like_count
} {12}
# With an index on t1.x and case sensitivity on, optimize completely.
#
do_test like-3.3 {
................................................................................
execsql {
PRAGMA case_sensitive_like=on;
CREATE INDEX i1 ON t1(x);
}
queryplan {
SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1;
}
} {abc abcd nosort {} i1}
do_test like-3.4 {
set sqlite_like_count
} 0
# The LIKE optimization still works when the RHS is a string with no
# wildcard. Ticket [e090183531fc2747]
#
do_test like-3.4.2 {
queryplan {
SELECT x FROM t1 WHERE x LIKE 'a' ORDER BY 1;
}
} {a nosort {} i1}
do_test like-3.4.3 {
queryplan {
SELECT x FROM t1 WHERE x LIKE 'ab' ORDER BY 1;
}
} {ab nosort {} i1}
do_test like-3.4.4 {
queryplan {
SELECT x FROM t1 WHERE x LIKE 'abcd' ORDER BY 1;
}
} {abcd nosort {} i1}
do_test like-3.4.5 {
queryplan {
SELECT x FROM t1 WHERE x LIKE 'abcde' ORDER BY 1;
}
} {nosort {} i1}
# Partial optimization when the pattern does not end in '%'
#
do_test like-3.5 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE 'a_c' ORDER BY 1;
}
} {abc nosort {} i1}
do_test like-3.6 {
set sqlite_like_count
} 6
do_test like-3.7 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE 'ab%d' ORDER BY 1;
}
} {abcd abd nosort {} i1}
do_test like-3.8 {
set sqlite_like_count
} 4
do_test like-3.9 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE 'a_c%' ORDER BY 1;
}
} {abc abcd nosort {} i1}
do_test like-3.10 {
set sqlite_like_count
} 6
# No optimization when the pattern begins with a wildcard.
# Note that the index is still used but only for sorting.
#
do_test like-3.11 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE '%bcd' ORDER BY 1;
}
} {abcd bcd nosort {} i1}
do_test like-3.12 {
set sqlite_like_count
} 12
# No optimization for case insensitive LIKE
#
do_test like-3.13 {
set sqlite_like_count 0
queryplan {
PRAGMA case_sensitive_like=off;
SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1;
}
} {ABC {ABC abc xyz} abc abcd nosort {} i1}
do_test like-3.14 {
set sqlite_like_count
} 12
# No optimization without an index.
#
do_test like-3.15 {
set sqlite_like_count 0
queryplan {
PRAGMA case_sensitive_like=on;
DROP INDEX i1;
SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1;
}
} {abc abcd sort t1 {}}
do_test like-3.16 {
set sqlite_like_count
} 12
# No GLOB optimization without an index.
#
do_test like-3.17 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1;
}
} {abc abcd sort t1 {}}
do_test like-3.18 {
set sqlite_like_count
} 12
# GLOB is optimized regardless of the case_sensitive_like setting.
#
do_test like-3.19 {
set sqlite_like_count 0
db eval {CREATE INDEX i1 ON t1(x);}
queryplan {
SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1;
}
} {abc abcd nosort {} i1}
do_test like-3.20 {
set sqlite_like_count
} 0
do_test like-3.21 {
set sqlite_like_count 0
queryplan {
PRAGMA case_sensitive_like=on;
SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1;
}
} {abc abcd nosort {} i1}
do_test like-3.22 {
set sqlite_like_count
} 0
do_test like-3.23 {
set sqlite_like_count 0
queryplan {
PRAGMA case_sensitive_like=off;
SELECT x FROM t1 WHERE x GLOB 'a[bc]d' ORDER BY 1;
}
} {abd acd nosort {} i1}
do_test like-3.24 {
set sqlite_like_count
} 6
# GLOB optimization when there is no wildcard. Ticket [e090183531fc2747]
#
do_test like-3.25 {
queryplan {
SELECT x FROM t1 WHERE x GLOB 'a' ORDER BY 1;
}
} {a nosort {} i1}
do_test like-3.26 {
queryplan {
SELECT x FROM t1 WHERE x GLOB 'abcd' ORDER BY 1;
}
} {abcd nosort {} i1}
do_test like-3.27 {
queryplan {
SELECT x FROM t1 WHERE x GLOB 'abcde' ORDER BY 1;
}
} {nosort {} i1}
# No optimization if the LHS of the LIKE is not a column name or
# if the RHS is not a string.
#
do_test like-4.1 {
execsql {PRAGMA case_sensitive_like=on}
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1
}
} {abc abcd nosort {} i1}
do_test like-4.2 {
set sqlite_like_count
} 0
do_test like-4.3 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE +x LIKE 'abc%' ORDER BY 1
}
} {abc abcd nosort {} i1}
do_test like-4.4 {
set sqlite_like_count
} 12
do_test like-4.5 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE ('ab' || 'c%') ORDER BY 1
}
} {abc abcd nosort {} i1}
do_test like-4.6 {
set sqlite_like_count
} 12
# Collating sequences on the index disable the LIKE optimization.
# Or if the NOCASE collating sequence is used, the LIKE optimization
# is enabled when case_sensitive_like is OFF.
................................................................................
#
do_test like-5.1 {
execsql {PRAGMA case_sensitive_like=off}
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1
}
} {ABC {ABC abc xyz} abc abcd nosort {} i1}
do_test like-5.2 {
set sqlite_like_count
} 12
do_test like-5.3 {
execsql {
CREATE TABLE t2(x TEXT COLLATE NOCASE);
INSERT INTO t2 SELECT * FROM t1;
CREATE INDEX i2 ON t2(x COLLATE NOCASE);
}
set sqlite_like_count 0
queryplan {
SELECT x FROM t2 WHERE x LIKE 'abc%' ORDER BY 1
}
} {abc ABC {ABC abc xyz} abcd nosort {} i2}
do_test like-5.4 {
set sqlite_like_count
} 0
do_test like-5.5 {
execsql {
PRAGMA case_sensitive_like=on;
}
set sqlite_like_count 0
queryplan {
SELECT x FROM t2 WHERE x LIKE 'abc%' ORDER BY 1
}
} {abc abcd nosort {} i2}
do_test like-5.6 {
set sqlite_like_count
} 12
do_test like-5.7 {
execsql {
PRAGMA case_sensitive_like=off;
}
set sqlite_like_count 0
queryplan {
SELECT x FROM t2 WHERE x GLOB 'abc*' ORDER BY 1
}
} {abc abcd nosort {} i2}
do_test like-5.8 {
set sqlite_like_count
} 12
do_test like-5.11 {
execsql {PRAGMA case_sensitive_like=off}
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE 'ABC%' ORDER BY 1
}
} {ABC {ABC abc xyz} abc abcd nosort {} i1}
do_test like-5.12 {
set sqlite_like_count
} 12
do_test like-5.13 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t2 WHERE x LIKE 'ABC%' ORDER BY 1
}
} {abc ABC {ABC abc xyz} abcd nosort {} i2}
do_test like-5.14 {
set sqlite_like_count
} 0
do_test like-5.15 {
execsql {
PRAGMA case_sensitive_like=on;
}
set sqlite_like_count 0
queryplan {
SELECT x FROM t2 WHERE x LIKE 'ABC%' ORDER BY 1
}
} {ABC {ABC abc xyz} nosort {} i2}
do_test like-5.16 {
set sqlite_like_count
} 12
do_test like-5.17 {
execsql {
PRAGMA case_sensitive_like=off;
}
set sqlite_like_count 0
queryplan {
SELECT x FROM t2 WHERE x GLOB 'ABC*' ORDER BY 1
}
} {ABC {ABC abc xyz} nosort {} i2}
do_test like-5.18 {
set sqlite_like_count
} 12
# Boundary case. The prefix for a LIKE comparison is rounded up
# when constructing the comparison. Example: "ab" becomes "ac".
# In other words, the last character is increased by one.
................................................................................
INSERT INTO t2 VALUES('zZ-lower-upper');
INSERT INTO t2 VALUES('Zz-upper-lower');
INSERT INTO t2 VALUES('zz-lower-lower');
}
queryplan {
SELECT x FROM t2 WHERE x LIKE 'zz%';
}
} {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort {} i2}
do_test like-5.22 {
queryplan {
SELECT x FROM t2 WHERE x LIKE 'zZ%';
}
} {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort {} i2}
do_test like-5.23 {
queryplan {
SELECT x FROM t2 WHERE x LIKE 'Zz%';
}
} {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort {} i2}
do_test like-5.24 {
queryplan {
SELECT x FROM t2 WHERE x LIKE 'ZZ%';
}
} {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort {} i2}
do_test like-5.25 {
db eval {
PRAGMA case_sensitive_like=on;
CREATE TABLE t3(x TEXT);
CREATE INDEX i3 ON t3(x);
INSERT INTO t3 VALUES('ZZ-upper-upper');
INSERT INTO t3 VALUES('zZ-lower-upper');
INSERT INTO t3 VALUES('Zz-upper-lower');
INSERT INTO t3 VALUES('zz-lower-lower');
}
queryplan {
SELECT x FROM t3 WHERE x LIKE 'zz%';
}
} {zz-lower-lower nosort {} i3}
do_test like-5.26 {
queryplan {
SELECT x FROM t3 WHERE x LIKE 'zZ%';
}
} {zZ-lower-upper nosort {} i3}
do_test like-5.27 {
queryplan {
SELECT x FROM t3 WHERE x LIKE 'Zz%';
}
} {Zz-upper-lower nosort {} i3}
do_test like-5.28 {
queryplan {
SELECT x FROM t3 WHERE x LIKE 'ZZ%';
}
} {ZZ-upper-upper nosort {} i3}
# ticket #2407
#
# Make sure the LIKE prefix optimization does not strip off leading
# characters of the like pattern that happen to be quote characters.
#
................................................................................
}]
} {0 {x hello}}
ifcapable explain {
do_test like-9.4.3 {
set res [sqlite4_exec_hex db {
EXPLAIN QUERY PLAN SELECT x FROM t2 WHERE x LIKE '%ff%25'
}]
regexp {INDEX i2} $res
} {0}
}
do_test like-9.5.1 {
set res [sqlite4_exec_hex db {
SELECT x FROM t2 WHERE x LIKE '%fe%25'
}]
} {0 {}}
ifcapable explain {
................................................................................
SELECT a FROM t10 WHERE e LIKE '12%' ORDER BY +a;
}
} {12 123 scan 5 like 6}
do_test like-10.5 {
count {
SELECT a FROM t10 WHERE f LIKE '12%' ORDER BY +a;
}
} {12 123 scan 3 like 0}
do_test like-10.6 {
count {
SELECT a FROM t10 WHERE a LIKE '12%' ORDER BY +a;
}
} {12 123 scan 5 like 6}
do_test like-10.10 {
execsql {
................................................................................
SELECT a FROM t10b WHERE e GLOB '12*' ORDER BY +a;
}
} {12 123 scan 5 like 6}
do_test like-10.14 {
count {
SELECT a FROM t10b WHERE f GLOB '12*' ORDER BY +a;
}
} {12 123 scan 3 like 0}
do_test like-10.15 {
count {
SELECT a FROM t10b WHERE a GLOB '12*' ORDER BY +a;
}
} {12 123 scan 5 like 6}
}
................................................................................
INSERT INTO t11 VALUES(10, 'yz','yz');
INSERT INTO t11 VALUES(11, 'X','X');
INSERT INTO t11 VALUES(12, 'YZ','YZ');
SELECT count(*) FROM t11;
}
} {12}
do_test like-11.1 {
queryplan {
PRAGMA case_sensitive_like=OFF;
SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY a;
}
} {abc abcd ABC ABCD nosort t11 *}
do_test like-11.2 {
queryplan {
PRAGMA case_sensitive_like=ON;
SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY a;
}
} {abc abcd nosort t11 *}
do_test like-11.3 {
queryplan {
PRAGMA case_sensitive_like=OFF;
CREATE INDEX t11b ON t11(b);
SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a;
}
} {abc abcd ABC ABCD sort {} t11b}
do_test like-11.4 {
queryplan {
PRAGMA case_sensitive_like=ON;
SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY a;
}
} {abc abcd nosort t11 *}
do_test like-11.5 {
queryplan {
PRAGMA case_sensitive_like=OFF;
DROP INDEX t11b;
CREATE INDEX t11bnc ON t11(b COLLATE nocase);
SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a;
}
} {abc abcd ABC ABCD sort {} t11bnc}
do_test like-11.6 {
queryplan {
CREATE INDEX t11bb ON t11(b COLLATE binary);
SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a;
}
} {abc abcd ABC ABCD sort {} t11bnc}
do_test like-11.7 {
queryplan {
PRAGMA case_sensitive_like=ON;
SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a;
}
} {abc abcd sort {} t11bb}
do_test like-11.8 {
queryplan {
PRAGMA case_sensitive_like=OFF;
SELECT b FROM t11 WHERE b GLOB 'abc*' ORDER BY +a;
}
} {abc abcd sort {} t11bb}
do_test like-11.9 {
queryplan {
CREATE INDEX t11cnc ON t11(c COLLATE nocase);
CREATE INDEX t11cb ON t11(c COLLATE binary);
SELECT c FROM t11 WHERE c LIKE 'abc%' ORDER BY +a;
}
} {abc abcd ABC ABCD sort {} t11cnc}
do_test like-11.10 {
queryplan {
SELECT c FROM t11 WHERE c GLOB 'abc*' ORDER BY +a;
}
} {abc abcd sort {} t11cb}
finish_test
|
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execsql {
SELECT x FROM t1 WHERE x REGEXP '^abc' ORDER BY 1;
}
} {abc abcd}
# Tests of the MATCH operator
#
# do_test like-2.3 {
# proc test_match {a b} {
# return [string match $a $b]
# }
# db function match -argcount 2 test_match
# execsql {
# SELECT x FROM t1 WHERE x MATCH '*abc*' ORDER BY 1;
# }
# } {{ABC abc xyz} abc abcd}
# do_test like-2.4 {
# execsql {
# SELECT x FROM t1 WHERE x MATCH 'abc*' ORDER BY 1;
# }
# } {abc abcd}
# For the remaining tests, we need to have the like optimizations
# enabled.
#
ifcapable !like_opt {
finish_test
return
}
# This procedure executes the SQL. Then it appends to the result the
# "sort" or "nosort" keyword (as in the cksort procedure above) then
# it appends the names of the table and index used.
#
proc queryplan {sql} {
set ::sqlite_sort_count 0
set data [execsql $sql]
if {$::sqlite_sort_count} {set x sort} {set x nosort}
lappend data $x
set eqp [execsql "EXPLAIN QUERY PLAN $sql"]
# puts eqp=$eqp
foreach {a b c x} $eqp {
if {[regexp { TABLE (\w+ AS )?(\w+) USING COVERING INDEX (\w+)\y} \
$x all as tab idx]} {
lappend data {} $idx
} elseif {[regexp { TABLE (\w+ AS )?(\w+) USING.* INDEX (\w+)\y} \
$x all as tab idx]} {
lappend data $tab $idx
} elseif {[regexp { TABLE (\w+ AS )?(\w+)\y} $x all as tab]} {
lappend data $tab *
}
}
return $data
}
# Perform tests on the like optimization.
#
# With no index on t1.x and with case sensitivity turned off, no optimization
# is performed.
#
do_test like-3.1 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1;
}
} {ABC {ABC abc xyz} abc abcd sort t1 *}
do_test like-3.2 {
set sqlite_like_count
} {12}
# With an index on t1.x and case sensitivity on, optimize completely.
#
do_test like-3.3 {
................................................................................
execsql {
PRAGMA case_sensitive_like=on;
CREATE INDEX i1 ON t1(x);
}
queryplan {
SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1;
}
} {abc abcd nosort t1 i1}
do_test like-3.4 {
set sqlite_like_count
} 0
# The LIKE optimization still works when the RHS is a string with no
# wildcard. Ticket [e090183531fc2747]
#
do_test like-3.4.2 {
queryplan {
SELECT x FROM t1 WHERE x LIKE 'a' ORDER BY 1;
}
} {a nosort t1 i1}
do_test like-3.4.3 {
queryplan {
SELECT x FROM t1 WHERE x LIKE 'ab' ORDER BY 1;
}
} {ab nosort t1 i1}
do_test like-3.4.4 {
queryplan {
SELECT x FROM t1 WHERE x LIKE 'abcd' ORDER BY 1;
}
} {abcd nosort t1 i1}
do_test like-3.4.5 {
queryplan {
SELECT x FROM t1 WHERE x LIKE 'abcde' ORDER BY 1;
}
} {nosort t1 i1}
# Partial optimization when the pattern does not end in '%'
#
do_test like-3.5 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE 'a_c' ORDER BY 1;
}
} {abc nosort t1 i1}
do_test like-3.6 {
set sqlite_like_count
} 6
do_test like-3.7 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE 'ab%d' ORDER BY 1;
}
} {abcd abd nosort t1 i1}
do_test like-3.8 {
set sqlite_like_count
} 4
do_test like-3.9 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE 'a_c%' ORDER BY 1;
}
} {abc abcd nosort t1 i1}
do_test like-3.10 {
set sqlite_like_count
} 6
# No optimization when the pattern begins with a wildcard.
# Note that the index is still used but only for sorting.
#
do_test like-3.11 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE '%bcd' ORDER BY 1;
}
} {abcd bcd nosort t1 i1}
do_test like-3.12 {
set sqlite_like_count
} 12
# No optimization for case insensitive LIKE
#
do_test like-3.13 {
set sqlite_like_count 0
db eval {PRAGMA case_sensitive_like=off;}
queryplan {
SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1;
}
} {ABC {ABC abc xyz} abc abcd nosort t1 i1}
do_test like-3.14 {
set sqlite_like_count
} 12
# No optimization without an index.
#
do_test like-3.15 {
set sqlite_like_count 0
db eval {
PRAGMA case_sensitive_like=on;
DROP INDEX i1;
}
queryplan {
SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1;
}
} {abc abcd sort t1 *}
do_test like-3.16 {
set sqlite_like_count
} 12
# No GLOB optimization without an index.
#
do_test like-3.17 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1;
}
} {abc abcd sort t1 *}
do_test like-3.18 {
set sqlite_like_count
} 12
# GLOB is optimized regardless of the case_sensitive_like setting.
#
do_test like-3.19 {
set sqlite_like_count 0
db eval {CREATE INDEX i1 ON t1(x);}
queryplan {
SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1;
}
} {abc abcd nosort t1 i1}
do_test like-3.20 {
set sqlite_like_count
} 0
do_test like-3.21 {
set sqlite_like_count 0
db eval {PRAGMA case_sensitive_like=on;}
queryplan {
SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1;
}
} {abc abcd nosort t1 i1}
do_test like-3.22 {
set sqlite_like_count
} 0
do_test like-3.23 {
set sqlite_like_count 0
db eval {PRAGMA case_sensitive_like=off;}
queryplan {
SELECT x FROM t1 WHERE x GLOB 'a[bc]d' ORDER BY 1;
}
} {abd acd nosort t1 i1}
do_test like-3.24 {
set sqlite_like_count
} 6
# GLOB optimization when there is no wildcard. Ticket [e090183531fc2747]
#
do_test like-3.25 {
queryplan {
SELECT x FROM t1 WHERE x GLOB 'a' ORDER BY 1;
}
} {a nosort t1 i1}
do_test like-3.26 {
queryplan {
SELECT x FROM t1 WHERE x GLOB 'abcd' ORDER BY 1;
}
} {abcd nosort t1 i1}
do_test like-3.27 {
queryplan {
SELECT x FROM t1 WHERE x GLOB 'abcde' ORDER BY 1;
}
} {nosort t1 i1}
# No optimization if the LHS of the LIKE is not a column name or
# if the RHS is not a string.
#
do_test like-4.1 {
execsql {PRAGMA case_sensitive_like=on}
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1
}
} {abc abcd nosort t1 i1}
do_test like-4.2 {
set sqlite_like_count
} 0
do_test like-4.3 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE +x LIKE 'abc%' ORDER BY 1
}
} {abc abcd nosort t1 i1}
do_test like-4.4 {
set sqlite_like_count
} 12
do_test like-4.5 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE ('ab' || 'c%') ORDER BY 1
}
} {abc abcd nosort t1 i1}
do_test like-4.6 {
set sqlite_like_count
} 12
# Collating sequences on the index disable the LIKE optimization.
# Or if the NOCASE collating sequence is used, the LIKE optimization
# is enabled when case_sensitive_like is OFF.
................................................................................
#
do_test like-5.1 {
execsql {PRAGMA case_sensitive_like=off}
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1
}
} {ABC {ABC abc xyz} abc abcd nosort t1 i1}
do_test like-5.2 {
set sqlite_like_count
} 12
do_test like-5.3 {
execsql {
CREATE TABLE t2(x TEXT COLLATE NOCASE);
INSERT INTO t2 SELECT * FROM t1 ORDER BY rowid;
CREATE INDEX i2 ON t2(x COLLATE NOCASE);
}
set sqlite_like_count 0
queryplan {
SELECT x FROM t2 WHERE x LIKE 'abc%' ORDER BY 1
}
} {abc ABC {ABC abc xyz} abcd nosort t2 i2}
do_test like-5.4 {
set sqlite_like_count
} 0
do_test like-5.5 {
execsql {
PRAGMA case_sensitive_like=on;
}
set sqlite_like_count 0
queryplan {
SELECT x FROM t2 WHERE x LIKE 'abc%' ORDER BY 1
}
} {abc abcd nosort t2 i2}
do_test like-5.6 {
set sqlite_like_count
} 12
do_test like-5.7 {
execsql {
PRAGMA case_sensitive_like=off;
}
set sqlite_like_count 0
queryplan {
SELECT x FROM t2 WHERE x GLOB 'abc*' ORDER BY 1
}
} {abc abcd nosort t2 i2}
do_test like-5.8 {
set sqlite_like_count
} 12
do_test like-5.11 {
execsql {PRAGMA case_sensitive_like=off}
set sqlite_like_count 0
queryplan {
SELECT x FROM t1 WHERE x LIKE 'ABC%' ORDER BY 1
}
} {ABC {ABC abc xyz} abc abcd nosort t1 i1}
do_test like-5.12 {
set sqlite_like_count
} 12
do_test like-5.13 {
set sqlite_like_count 0
queryplan {
SELECT x FROM t2 WHERE x LIKE 'ABC%' ORDER BY 1
}
} {abc ABC {ABC abc xyz} abcd nosort t2 i2}
do_test like-5.14 {
set sqlite_like_count
} 0
do_test like-5.15 {
execsql {
PRAGMA case_sensitive_like=on;
}
set sqlite_like_count 0
queryplan {
SELECT x FROM t2 WHERE x LIKE 'ABC%' ORDER BY 1
}
} {ABC {ABC abc xyz} nosort t2 i2}
do_test like-5.16 {
set sqlite_like_count
} 12
do_test like-5.17 {
execsql {
PRAGMA case_sensitive_like=off;
}
set sqlite_like_count 0
queryplan {
SELECT x FROM t2 WHERE x GLOB 'ABC*' ORDER BY 1
}
} {ABC {ABC abc xyz} nosort t2 i2}
do_test like-5.18 {
set sqlite_like_count
} 12
# Boundary case. The prefix for a LIKE comparison is rounded up
# when constructing the comparison. Example: "ab" becomes "ac".
# In other words, the last character is increased by one.
................................................................................
INSERT INTO t2 VALUES('zZ-lower-upper');
INSERT INTO t2 VALUES('Zz-upper-lower');
INSERT INTO t2 VALUES('zz-lower-lower');
}
queryplan {
SELECT x FROM t2 WHERE x LIKE 'zz%';
}
} {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort t2 i2}
do_test like-5.22 {
queryplan {
SELECT x FROM t2 WHERE x LIKE 'zZ%';
}
} {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort t2 i2}
do_test like-5.23 {
queryplan {
SELECT x FROM t2 WHERE x LIKE 'Zz%';
}
} {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort t2 i2}
do_test like-5.24 {
queryplan {
SELECT x FROM t2 WHERE x LIKE 'ZZ%';
}
} {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort t2 i2}
do_test like-5.25 {
db eval {
PRAGMA case_sensitive_like=on;
CREATE TABLE t3(x TEXT);
CREATE INDEX i3 ON t3(x);
INSERT INTO t3 VALUES('ZZ-upper-upper');
INSERT INTO t3 VALUES('zZ-lower-upper');
INSERT INTO t3 VALUES('Zz-upper-lower');
INSERT INTO t3 VALUES('zz-lower-lower');
}
queryplan {
SELECT x FROM t3 WHERE x LIKE 'zz%';
}
} {zz-lower-lower nosort t3 i3}
do_test like-5.26 {
queryplan {
SELECT x FROM t3 WHERE x LIKE 'zZ%';
}
} {zZ-lower-upper nosort t3 i3}
do_test like-5.27 {
queryplan {
SELECT x FROM t3 WHERE x LIKE 'Zz%';
}
} {Zz-upper-lower nosort t3 i3}
do_test like-5.28 {
queryplan {
SELECT x FROM t3 WHERE x LIKE 'ZZ%';
}
} {ZZ-upper-upper nosort t3 i3}
# ticket #2407
#
# Make sure the LIKE prefix optimization does not strip off leading
# characters of the like pattern that happen to be quote characters.
#
................................................................................
}]
} {0 {x hello}}
ifcapable explain {
do_test like-9.4.3 {
set res [sqlite4_exec_hex db {
EXPLAIN QUERY PLAN SELECT x FROM t2 WHERE x LIKE '%ff%25'
}]
regexp {SCAN TABLE t2} $res
} {1}
}
do_test like-9.5.1 {
set res [sqlite4_exec_hex db {
SELECT x FROM t2 WHERE x LIKE '%fe%25'
}]
} {0 {}}
ifcapable explain {
................................................................................
SELECT a FROM t10 WHERE e LIKE '12%' ORDER BY +a;
}
} {12 123 scan 5 like 6}
do_test like-10.5 {
count {
SELECT a FROM t10 WHERE f LIKE '12%' ORDER BY +a;
}
} {12 123 scan 2 like 0}
do_test like-10.6 {
count {
SELECT a FROM t10 WHERE a LIKE '12%' ORDER BY +a;
}
} {12 123 scan 5 like 6}
do_test like-10.10 {
execsql {
................................................................................
SELECT a FROM t10b WHERE e GLOB '12*' ORDER BY +a;
}
} {12 123 scan 5 like 6}
do_test like-10.14 {
count {
SELECT a FROM t10b WHERE f GLOB '12*' ORDER BY +a;
}
} {12 123 scan 2 like 0}
do_test like-10.15 {
count {
SELECT a FROM t10b WHERE a GLOB '12*' ORDER BY +a;
}
} {12 123 scan 5 like 6}
}
................................................................................
INSERT INTO t11 VALUES(10, 'yz','yz');
INSERT INTO t11 VALUES(11, 'X','X');
INSERT INTO t11 VALUES(12, 'YZ','YZ');
SELECT count(*) FROM t11;
}
} {12}
do_test like-11.1 {
db eval {PRAGMA case_sensitive_like=OFF;}
queryplan {
SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY a;
}
} {abc abcd ABC ABCD nosort t11 *}
do_test like-11.2 {
db eval {PRAGMA case_sensitive_like=ON;}
queryplan {
SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY a;
}
} {abc abcd nosort t11 *}
do_test like-11.3 {
db eval {
PRAGMA case_sensitive_like=OFF;
CREATE INDEX t11b ON t11(b);
}
queryplan {
SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a;
}
} {abc abcd ABC ABCD sort t11 t11b}
do_test like-11.4 {
db eval {PRAGMA case_sensitive_like=ON;}
queryplan {
SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY a;
}
} {abc abcd nosort t11 *}
do_test like-11.5 {
db eval {
PRAGMA case_sensitive_like=OFF;
DROP INDEX t11b;
CREATE INDEX t11bnc ON t11(b COLLATE nocase);
}
queryplan {
SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a;
}
} {abc abcd ABC ABCD sort t11 t11bnc}
do_test like-11.6 {
db eval {CREATE INDEX t11bb ON t11(b COLLATE binary);}
queryplan {
SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a;
}
} {abc abcd ABC ABCD sort t11 t11bnc}
do_test like-11.7 {
db eval {PRAGMA case_sensitive_like=ON;}
queryplan {
SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a;
}
} {abc abcd sort t11 t11bb}
do_test like-11.8 {
db eval {PRAGMA case_sensitive_like=OFF;}
queryplan {
SELECT b FROM t11 WHERE b GLOB 'abc*' ORDER BY +a;
}
} {abc abcd sort t11 t11bb}
do_test like-11.9 {
db eval {
CREATE INDEX t11cnc ON t11(c COLLATE nocase);
CREATE INDEX t11cb ON t11(c COLLATE binary);
}
queryplan {
SELECT c FROM t11 WHERE c LIKE 'abc%' ORDER BY +a;
}
} {abc abcd ABC ABCD sort t11 t11cnc}
do_test like-11.10 {
queryplan {
SELECT c FROM t11 WHERE c GLOB 'abc*' ORDER BY +a;
}
} {abc abcd sort t11 t11cb}
finish_test
|
Changes to test/permutations.test.
186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 |
in.test in2.test in3.test in4.test index.test index2.test index3.test index4.test insert.test insert2.test insert3.test insert5.test join.test join2.test join3.test join4.test join5.test join6.test keyword1.test laststmtchanges.test limit.test like2.test main.test manydb.test misc5.test misc6.test misuse.test notnull.test null.test num.test num2.test |
| |
186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 |
in.test in2.test in3.test in4.test
index.test index2.test index3.test index4.test
insert.test insert2.test insert3.test insert5.test
join.test join2.test join3.test join4.test join5.test join6.test
keyword1.test
laststmtchanges.test
limit.test
like.test like2.test
main.test
manydb.test
misc5.test misc6.test
misuse.test
notnull.test
null.test
num.test num2.test
|