/test/sqllimits1.test
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- # 2007 May 8
- #
- # 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 to verify that the limits defined in
- # sqlite source file limits.h are enforced.
- #
- # $Id:$
- set testdir [file dirname $argv0]
- source $testdir/tester.tcl
- # Verify that the default per-connection limits are the same as
- # the compile-time hard limits.
- #
- sqlite3 db2 :memory:
- do_test sqllimits1-1.1 {
- sqlite3_limit db SQLITE_LIMIT_LENGTH -1
- } $SQLITE_MAX_LENGTH
- do_test sqllimits1-1.2 {
- sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH -1
- } $SQLITE_MAX_SQL_LENGTH
- do_test sqllimits1-1.3 {
- sqlite3_limit db SQLITE_LIMIT_COLUMN -1
- } $SQLITE_MAX_COLUMN
- do_test sqllimits1-1.4 {
- sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH -1
- } $SQLITE_MAX_EXPR_DEPTH
- do_test sqllimits1-1.5 {
- sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT -1
- } $SQLITE_MAX_COMPOUND_SELECT
- do_test sqllimits1-1.6 {
- sqlite3_limit db SQLITE_LIMIT_VDBE_OP -1
- } $SQLITE_MAX_VDBE_OP
- do_test sqllimits1-1.7 {
- sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG -1
- } $SQLITE_MAX_FUNCTION_ARG
- do_test sqllimits1-1.8 {
- sqlite3_limit db SQLITE_LIMIT_ATTACHED -1
- } $SQLITE_MAX_ATTACHED
- do_test sqllimits1-1.9 {
- sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH -1
- } $SQLITE_MAX_LIKE_PATTERN_LENGTH
- do_test sqllimits1-1.10 {
- sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER -1
- } $SQLITE_MAX_VARIABLE_NUMBER
- # Limit parameters out of range.
- #
- do_test sqllimits1-1.20 {
- sqlite3_limit db SQLITE_LIMIT_TOOSMALL 123
- } {-1}
- do_test sqllimits1-1.21 {
- sqlite3_limit db SQLITE_LIMIT_TOOSMALL 123
- } {-1}
- do_test sqllimits1-1.22 {
- sqlite3_limit db SQLITE_LIMIT_TOOBIG 123
- } {-1}
- do_test sqllimits1-1.23 {
- sqlite3_limit db SQLITE_LIMIT_TOOBIG 123
- } {-1}
- # Decrease all limits by half. Verify that the new limits take.
- #
- if {$SQLITE_MAX_LENGTH>=2} {
- do_test sqllimits1-2.1.1 {
- sqlite3_limit db SQLITE_LIMIT_LENGTH \
- [expr {$::SQLITE_MAX_LENGTH/2}]
- } $SQLITE_MAX_LENGTH
- do_test sqllimits1-2.1.2 {
- sqlite3_limit db SQLITE_LIMIT_LENGTH -1
- } [expr {$SQLITE_MAX_LENGTH/2}]
- }
- if {$SQLITE_MAX_SQL_LENGTH>=2} {
- do_test sqllimits1-2.2.1 {
- sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH \
- [expr {$::SQLITE_MAX_SQL_LENGTH/2}]
- } $SQLITE_MAX_SQL_LENGTH
- do_test sqllimits1-2.2.2 {
- sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH -1
- } [expr {$SQLITE_MAX_SQL_LENGTH/2}]
- }
- if {$SQLITE_MAX_COLUMN>=2} {
- do_test sqllimits1-2.3.1 {
- sqlite3_limit db SQLITE_LIMIT_COLUMN \
- [expr {$::SQLITE_MAX_COLUMN/2}]
- } $SQLITE_MAX_COLUMN
- do_test sqllimits1-2.3.2 {
- sqlite3_limit db SQLITE_LIMIT_COLUMN -1
- } [expr {$SQLITE_MAX_COLUMN/2}]
- }
- if {$SQLITE_MAX_EXPR_DEPTH>=2} {
- do_test sqllimits1-2.4.1 {
- sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH \
- [expr {$::SQLITE_MAX_EXPR_DEPTH/2}]
- } $SQLITE_MAX_EXPR_DEPTH
- do_test sqllimits1-2.4.2 {
- sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH -1
- } [expr {$SQLITE_MAX_EXPR_DEPTH/2}]
- }
- if {$SQLITE_MAX_COMPOUND_SELECT>=2} {
- do_test sqllimits1-2.5.1 {
- sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT \
- [expr {$::SQLITE_MAX_COMPOUND_SELECT/2}]
- } $SQLITE_MAX_COMPOUND_SELECT
- do_test sqllimits1-2.5.2 {
- sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT -1
- } [expr {$SQLITE_MAX_COMPOUND_SELECT/2}]
- }
- if {$SQLITE_MAX_VDBE_OP>=2} {
- do_test sqllimits1-2.6.1 {
- sqlite3_limit db SQLITE_LIMIT_VDBE_OP \
- [expr {$::SQLITE_MAX_VDBE_OP/2}]
- } $SQLITE_MAX_VDBE_OP
- do_test sqllimits1-2.6.2 {
- sqlite3_limit db SQLITE_LIMIT_VDBE_OP -1
- } [expr {$SQLITE_MAX_VDBE_OP/2}]
- }
- if {$SQLITE_MAX_FUNCTION_ARG>=2} {
- do_test sqllimits1-2.7.1 {
- sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG \
- [expr {$::SQLITE_MAX_FUNCTION_ARG/2}]
- } $SQLITE_MAX_FUNCTION_ARG
- do_test sqllimits1-2.7.2 {
- sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG -1
- } [expr {$SQLITE_MAX_FUNCTION_ARG/2}]
- }
- if {$SQLITE_MAX_ATTACHED>=2} {
- do_test sqllimits1-2.8.1 {
- sqlite3_limit db SQLITE_LIMIT_ATTACHED \
- [expr {$::SQLITE_MAX_ATTACHED/2}]
- } $SQLITE_MAX_ATTACHED
- do_test sqllimits1-2.8.2 {
- sqlite3_limit db SQLITE_LIMIT_ATTACHED -1
- } [expr {$SQLITE_MAX_ATTACHED/2}]
- }
- if {$SQLITE_MAX_LIKE_PATTERN_LENGTH>=2} {
- do_test sqllimits1-2.9.1 {
- sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH \
- [expr {$::SQLITE_MAX_LIKE_PATTERN_LENGTH/2}]
- } $SQLITE_MAX_LIKE_PATTERN_LENGTH
- do_test sqllimits1-2.9.2 {
- sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH -1
- } [expr {$SQLITE_MAX_LIKE_PATTERN_LENGTH/2}]
- }
- if {$SQLITE_MAX_VARIABLE_NUMBER>=2} {
- do_test sqllimits1-2.10.1 {
- sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER \
- [expr {$::SQLITE_MAX_VARIABLE_NUMBER/2}]
- } $SQLITE_MAX_VARIABLE_NUMBER
- do_test sqllimits1-2.10.2 {
- sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER -1
- } [expr {$SQLITE_MAX_VARIABLE_NUMBER/2}]
- }
- # In a separate database connection, verify that the limits are unchanged.
- #
- do_test sqllimits1-3.1 {
- sqlite3_limit db2 SQLITE_LIMIT_LENGTH -1
- } $SQLITE_MAX_LENGTH
- do_test sqllimits1-3.2 {
- sqlite3_limit db2 SQLITE_LIMIT_SQL_LENGTH -1
- } $SQLITE_MAX_SQL_LENGTH
- do_test sqllimits1-3.3 {
- sqlite3_limit db2 SQLITE_LIMIT_COLUMN -1
- } $SQLITE_MAX_COLUMN
- do_test sqllimits1-3.4 {
- sqlite3_limit db2 SQLITE_LIMIT_EXPR_DEPTH -1
- } $SQLITE_MAX_EXPR_DEPTH
- do_test sqllimits1-3.5 {
- sqlite3_limit db2 SQLITE_LIMIT_COMPOUND_SELECT -1
- } $SQLITE_MAX_COMPOUND_SELECT
- do_test sqllimits1-3.6 {
- sqlite3_limit db2 SQLITE_LIMIT_VDBE_OP -1
- } $SQLITE_MAX_VDBE_OP
- do_test sqllimits1-3.7 {
- sqlite3_limit db2 SQLITE_LIMIT_FUNCTION_ARG -1
- } $SQLITE_MAX_FUNCTION_ARG
- do_test sqllimits1-3.8 {
- sqlite3_limit db2 SQLITE_LIMIT_ATTACHED -1
- } $SQLITE_MAX_ATTACHED
- do_test sqllimits1-3.9 {
- sqlite3_limit db2 SQLITE_LIMIT_LIKE_PATTERN_LENGTH -1
- } $SQLITE_MAX_LIKE_PATTERN_LENGTH
- do_test sqllimits1-3.10 {
- sqlite3_limit db2 SQLITE_LIMIT_VARIABLE_NUMBER -1
- } $SQLITE_MAX_VARIABLE_NUMBER
- db2 close
- # Attempt to set all limits to the maximum 32-bit integer. Verify
- # that the limit does not exceed the compile-time upper bound.
- #
- do_test sqllimits1-4.1.1 {
- sqlite3_limit db SQLITE_LIMIT_LENGTH 0x7fffffff
- sqlite3_limit db SQLITE_LIMIT_LENGTH -1
- } $SQLITE_MAX_LENGTH
- do_test sqllimits1-4.2.1 {
- sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 0x7fffffff
- sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH -1
- } $SQLITE_MAX_SQL_LENGTH
- do_test sqllimits1-4.3.1 {
- sqlite3_limit db SQLITE_LIMIT_COLUMN 0x7fffffff
- sqlite3_limit db SQLITE_LIMIT_COLUMN -1
- } $SQLITE_MAX_COLUMN
- do_test sqllimits1-4.4.1 {
- sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH 0x7fffffff
- sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH -1
- } $SQLITE_MAX_EXPR_DEPTH
- do_test sqllimits1-4.5.1 {
- sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT 0x7fffffff
- sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT -1
- } $SQLITE_MAX_COMPOUND_SELECT
- do_test sqllimits1-4.6.1 {
- sqlite3_limit db SQLITE_LIMIT_VDBE_OP 0x7fffffff
- sqlite3_limit db SQLITE_LIMIT_VDBE_OP -1
- } $SQLITE_MAX_VDBE_OP
- do_test sqllimits1-4.7.1 {
- sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG 0x7fffffff
- sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG -1
- } $SQLITE_MAX_FUNCTION_ARG
- do_test sqllimits1-4.8.1 {
- sqlite3_limit db SQLITE_LIMIT_ATTACHED 0x7fffffff
- sqlite3_limit db SQLITE_LIMIT_ATTACHED -1
- } $SQLITE_MAX_ATTACHED
- do_test sqllimits1-4.9.1 {
- sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH 0x7fffffff
- sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH -1
- } $SQLITE_MAX_LIKE_PATTERN_LENGTH
- do_test sqllimits1-4.10.1 {
- sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER 0x7fffffff
- sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER -1
- } $SQLITE_MAX_VARIABLE_NUMBER
- #--------------------------------------------------------------------
- # Test cases sqllimits1-5.* test that the SQLITE_MAX_LENGTH limit
- # is enforced.
- #
- db close
- sqlite3 db test.db
- set LARGESIZE 99999
- set SQLITE_LIMIT_LENGTH 100000
- sqlite3_limit db SQLITE_LIMIT_LENGTH $SQLITE_LIMIT_LENGTH
- do_test sqllimits1-5.1.1 {
- catchsql { SELECT randomblob(2147483647) }
- } {1 {string or blob too big}}
- do_test sqllimits1-5.1.2 {
- catchsql { SELECT zeroblob(2147483647) }
- } {1 {string or blob too big}}
- do_test sqllimits1-5.2 {
- catchsql { SELECT LENGTH(randomblob($::LARGESIZE)) }
- } [list 0 $LARGESIZE]
- do_test sqllimits1-5.3 {
- catchsql { SELECT quote(randomblob($::LARGESIZE)) }
- } {1 {string or blob too big}}
- do_test sqllimits1-5.4 {
- catchsql { SELECT LENGTH(zeroblob($::LARGESIZE)) }
- } [list 0 $LARGESIZE]
- do_test sqllimits1-5.5 {
- catchsql { SELECT quote(zeroblob($::LARGESIZE)) }
- } {1 {string or blob too big}}
- do_test sqllimits1-5.6 {
- catchsql { SELECT zeroblob(-1) }
- } {0 {{}}}
- do_test sqllimits1-5.9 {
- set ::str [string repeat A 65537]
- set ::rep [string repeat B 65537]
- catchsql { SELECT replace($::str, 'A', $::rep) }
- } {1 {string or blob too big}}
- do_test sqllimits1-5.10 {
- set ::str [string repeat %J 2100]
- catchsql { SELECT strftime($::str, '2003-10-31') }
- } {1 {string or blob too big}}
- do_test sqllimits1-5.11 {
- set ::str1 [string repeat A [expr {$SQLITE_LIMIT_LENGTH - 10}]]
- set ::str2 [string repeat B [expr {$SQLITE_LIMIT_LENGTH - 10}]]
- catchsql { SELECT $::str1 || $::str2 }
- } {1 {string or blob too big}}
- do_test sqllimits1-5.12 {
- set ::str1 [string repeat ' [expr {$SQLITE_LIMIT_LENGTH - 10}]]
- catchsql { SELECT quote($::str1) }
- } {1 {string or blob too big}}
- do_test sqllimits1-5.13 {
- set ::str1 [string repeat ' [expr {$SQLITE_LIMIT_LENGTH - 10}]]
- catchsql { SELECT hex($::str1) }
- } {1 {string or blob too big}}
- do_test sqllimits1-5.14.1 {
- set ::STMT [sqlite3_prepare db "SELECT ?" -1 TAIL]
- sqlite3_bind_zeroblob $::STMT 1 [expr {$SQLITE_LIMIT_LENGTH + 1}]
- } {}
- do_test sqllimits1-5.14.2 {
- sqlite3_step $::STMT
- } {SQLITE_ERROR}
- do_test sqllimits1-5.14.3 {
- sqlite3_reset $::STMT
- } {SQLITE_TOOBIG}
- do_test sqllimits1-5.14.4 {
- set np1 [expr {$SQLITE_LIMIT_LENGTH + 1}]
- set ::str1 [string repeat A $np1]
- catch {sqlite3_bind_text $::STMT 1 $::str1 -1} res
- set res
- } {SQLITE_TOOBIG}
- ifcapable utf16 {
- do_test sqllimits1-5.14.5 {
- catch {sqlite3_bind_text16 $::STMT 1 $::str1 -1} res
- set res
- } {SQLITE_TOOBIG}
- }
- do_test sqllimits1-5.14.6 {
- catch {sqlite3_bind_text $::STMT 1 $::str1 $np1} res
- set res
- } {SQLITE_TOOBIG}
- ifcapable utf16 {
- do_test sqllimits1-5.14.7 {
- catch {sqlite3_bind_text16 $::STMT 1 $::str1 $np1} res
- set res
- } {SQLITE_TOOBIG}
- }
- do_test sqllimits1-5.14.8 {
- set n [expr {$np1-1}]
- catch {sqlite3_bind_text $::STMT 1 $::str1 $n} res
- set res
- } {}
- do_test sqllimits1-5.14.9 {
- catch {sqlite3_bind_text16 $::STMT 1 $::str1 $n} res
- set res
- } {}
- sqlite3_finalize $::STMT
- do_test sqllimits1-5.15 {
- execsql {
- CREATE TABLE t4(x);
- INSERT INTO t4 VALUES(1);
- INSERT INTO t4 VALUES(2);
- INSERT INTO t4 SELECT 2+x FROM t4;
- }
- catchsql {
- SELECT group_concat(hex(randomblob(20000))) FROM t4;
- }
- } {1 {string or blob too big}}
- db eval {DROP TABLE t4}
- sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 0x7fffffff
- set strvalue [string repeat A $::SQLITE_LIMIT_LENGTH]
- do_test sqllimits1-5.16 {
- catchsql "SELECT '$strvalue'"
- } [list 0 $strvalue]
- do_test sqllimits1-5.17.1 {
- catchsql "SELECT 'A$strvalue'"
- } [list 1 {string or blob too big}]
- do_test sqllimits1-5.17.2 {
- sqlite3_limit db SQLITE_LIMIT_LENGTH 0x7fffffff
- catchsql {SELECT 'A' || $::strvalue}
- } [list 0 A$strvalue]
- do_test sqllimits1-5.17.3 {
- sqlite3_limit db SQLITE_LIMIT_LENGTH $SQLITE_LIMIT_LENGTH
- catchsql {SELECT 'A' || $::strvalue}
- } [list 1 {string or blob too big}]
- set blobvalue [string repeat 41 $::SQLITE_LIMIT_LENGTH]
- do_test sqllimits1-5.18 {
- catchsql "SELECT x'$blobvalue'"
- } [list 0 $strvalue]
- do_test sqllimits1-5.19 {
- catchsql "SELECT '41$blobvalue'"
- } [list 1 {string or blob too big}]
- unset blobvalue
- ifcapable datetime {
- set strvalue [string repeat D [expr {$SQLITE_LIMIT_LENGTH-12}]]
- do_test sqllimits1-5.20 {
- catchsql {SELECT strftime('%Y ' || $::strvalue, '2008-01-02')}
- } [list 0 [list "2008 $strvalue"]]
- do_test sqllimits1-5.21 {
- catchsql {SELECT strftime('%Y-%m-%d ' || $::strvalue, '2008-01-02')}
- } {1 {string or blob too big}}
- }
- unset strvalue
- #--------------------------------------------------------------------
- # Test cases sqllimits1-6.* test that the SQLITE_MAX_SQL_LENGTH limit
- # is enforced.
- #
- do_test sqllimits1-6.1 {
- sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 50000
- set sql "SELECT 1 WHERE 1==1"
- set tail " /* A comment to take up space in order to make the string\
- longer without increasing the expression depth */\
- AND 1 == 1"
- set N [expr {(50000 / [string length $tail])+1}]
- append sql [string repeat $tail $N]
- catchsql $sql
- } {1 {string or blob too big}}
- do_test sqllimits1-6.3 {
- sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 50000
- set sql "SELECT 1 WHERE 1==1"
- set tail " /* A comment to take up space in order to make the string\
- longer without increasing the expression depth */\
- AND 1 == 1"
- set N [expr {(50000 / [string length $tail])+1}]
- append sql [string repeat $tail $N]
- set nbytes [string length $sql]
- append sql { AND 0}
- set rc [catch {sqlite3_prepare db $sql $nbytes TAIL} STMT]
- lappend rc $STMT
- } {1 {(18) statement too long}}
- do_test sqllimits1-6.4 {
- sqlite3_errmsg db
- } {statement too long}
- #--------------------------------------------------------------------
- # Test cases sqllimits1-7.* test that the limit set using the
- # max_page_count pragma.
- #
- do_test sqllimits1-7.1 {
- execsql {
- PRAGMA max_page_count = 1000;
- }
- } {1000}
- do_test sqllimits1-7.2 {
- execsql { CREATE TABLE trig (a INTEGER, b INTEGER); }
- # Set up a tree of triggers to fire when a row is inserted
- # into table "trig".
- #
- # INSERT -> insert_b -> update_b -> insert_a -> update_a (chain 1)
- # -> update_a -> insert_a -> update_b (chain 2)
- # -> insert_a -> update_b -> insert_b -> update_a (chain 3)
- # -> update_a -> insert_b -> update_b (chain 4)
- #
- # Table starts with N rows.
- #
- # Chain 1: insert_b (update N rows)
- # -> update_b (insert 1 rows)
- # -> insert_a (update N rows)
- # -> update_a (insert 1 rows)
- #
- # chains 2, 3 and 4 are similar. Each inserts more than N^2 rows, where
- # N is the number of rows at the conclusion of the previous chain.
- #
- # Therefore, a single insert adds (N^16 plus some) rows to the database.
- # A really long loop...
- #
- execsql {
- CREATE TRIGGER update_b BEFORE UPDATE ON trig
- FOR EACH ROW BEGIN
- INSERT INTO trig VALUES (65, 'update_b');
- END;
- CREATE TRIGGER update_a AFTER UPDATE ON trig
- FOR EACH ROW BEGIN
- INSERT INTO trig VALUES (65, 'update_a');
- END;
- CREATE TRIGGER insert_b BEFORE INSERT ON trig
- FOR EACH ROW BEGIN
- UPDATE trig SET a = 1;
- END;
- CREATE TRIGGER insert_a AFTER INSERT ON trig
- FOR EACH ROW BEGIN
- UPDATE trig SET a = 1;
- END;
- }
- } {}
- do_test sqllimits1-7.3 {
- execsql {
- INSERT INTO trig VALUES (1,1);
- }
- } {}
- do_test sqllimits1-7.4 {
- execsql {
- SELECT COUNT(*) FROM trig;
- }
- } {7}
- # This tries to insert so many rows it fills up the database (limited
- # to 1MB, so not that noteworthy an achievement).
- #
- do_test sqllimits1-7.5 {
- catchsql {
- INSERT INTO trig VALUES (1,10);
- }
- } {1 {database or disk is full}}
- do_test sqllimits1-7.6 {
- catchsql {
- SELECT COUNT(*) FROM trig;
- }
- } {0 7}
- # Now check the response of the library to opening a file larger than
- # the current max_page_count value. The response is to change the
- # internal max_page_count value to match the actual size of the file.
- if {[db eval {PRAGMA auto_vacuum}]} {
- set fsize 1700
- } else {
- set fsize 1691
- }
- do_test sqllimits1-7.7.1 {
- execsql {
- PRAGMA max_page_count = 1000000;
- CREATE TABLE abc(a, b, c);
- INSERT INTO abc VALUES(1, 2, 3);
- INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
- INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
- INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
- INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
- INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
- INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
- INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
- INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
- INSERT INTO abc SELECT a, b, c FROM abc;
- INSERT INTO abc SELECT b, a, c FROM abc;
- INSERT INTO abc SELECT c, b, a FROM abc;
- }
- expr [file size test.db] / 1024
- } $fsize
- do_test sqllimits1-7.7.2 {
- db close
- sqlite3 db test.db
- execsql {
- PRAGMA max_page_count = 1000;
- }
- execsql {
- SELECT count(*) FROM sqlite_master;
- }
- } {6}
- do_test sqllimits1-7.7.3 {
- execsql {
- PRAGMA max_page_count;
- }
- } $fsize
- do_test sqllimits1-7.7.4 {
- execsql {
- DROP TABLE abc;
- }
- } {}
- #--------------------------------------------------------------------
- # Test cases sqllimits1-8.* test the SQLITE_MAX_COLUMN limit.
- #
- set SQLITE_LIMIT_COLUMN 200
- sqlite3_limit db SQLITE_LIMIT_COLUMN $SQLITE_LIMIT_COLUMN
- do_test sqllimits1-8.1 {
- # Columns in a table.
- set cols [list]
- for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
- lappend cols "c$i"
- }
- catchsql "CREATE TABLE t([join $cols ,])"
- } {1 {too many columns on t}}
- do_test sqllimits1-8.2 {
- # Columns in the result-set of a SELECT.
- set cols [list]
- for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
- lappend cols "sql AS sql$i"
- }
- catchsql "SELECT [join $cols ,] FROM sqlite_master"
- } {1 {too many columns in result set}}
- do_test sqllimits1-8.3 {
- # Columns in the result-set of a sub-SELECT.
- set cols [list]
- for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
- lappend cols "sql AS sql$i"
- }
- catchsql "SELECT sql4 FROM (SELECT [join $cols ,] FROM sqlite_master)"
- } {1 {too many columns in result set}}
- do_test sqllimits1-8.4 {
- # Columns in an index.
- set cols [list]
- for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
- lappend cols c
- }
- set sql1 "CREATE TABLE t1(c);"
- set sql2 "CREATE INDEX i1 ON t1([join $cols ,]);"
- catchsql "$sql1 ; $sql2"
- } {1 {too many columns in index}}
- do_test sqllimits1-8.5 {
- # Columns in a GROUP BY clause.
- catchsql "SELECT * FROM t1 GROUP BY [join $cols ,]"
- } {1 {too many terms in GROUP BY clause}}
- do_test sqllimits1-8.6 {
- # Columns in an ORDER BY clause.
- catchsql "SELECT * FROM t1 ORDER BY [join $cols ,]"
- } {1 {too many terms in ORDER BY clause}}
- do_test sqllimits1-8.7 {
- # Assignments in an UPDATE statement.
- set cols [list]
- for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
- lappend cols "c = 1"
- }
- catchsql "UPDATE t1 SET [join $cols ,];"
- } {1 {too many columns in set list}}
- do_test sqllimits1-8.8 {
- # Columns in a view definition:
- set cols [list]
- for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
- lappend cols "c$i"
- }
- catchsql "CREATE VIEW v1 AS SELECT [join $cols ,] FROM t1;"
- } {1 {too many columns in result set}}
- do_test sqllimits1-8.9 {
- # Columns in a view definition (testing * expansion):
- set cols [list]
- for {set i 0} {$i < $SQLITE_LIMIT_COLUMN} {incr i} {
- lappend cols "c$i"
- }
- catchsql "CREATE TABLE t2([join $cols ,])"
- catchsql "CREATE VIEW v1 AS SELECT *, c1 AS o FROM t2;"
- } {1 {too many columns in result set}}
- do_test sqllimits1-8.10 {
- # ORDER BY columns
- set cols [list]
- for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
- lappend cols c
- }
- set sql "SELECT c FROM t1 ORDER BY [join $cols ,]"
- catchsql $sql
- } {1 {too many terms in ORDER BY clause}}
- do_test sqllimits1-8.11 {
- # ORDER BY columns
- set cols [list]
- for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
- lappend cols [expr {$i%3 + 1}]
- }
- set sql "SELECT c, c+1, c+2 FROM t1 UNION SELECT c-1, c-2, c-3 FROM t1"
- append sql " ORDER BY [join $cols ,]"
- catchsql $sql
- } {1 {too many terms in ORDER BY clause}}
- #--------------------------------------------------------------------
- # These tests - sqllimits1-9.* - test that the SQLITE_LIMIT_EXPR_DEPTH
- # limit is enforced. The limit refers to the number of terms in
- # the expression.
- #
- if {$SQLITE_MAX_EXPR_DEPTH==0} {
- puts -nonewline stderr "WARNING: Compile with -DSQLITE_MAX_EXPR_DEPTH to run "
- puts stderr "tests sqllimits1-9.X"
- } else {
- do_test sqllimits1-9.1 {
- set max $::SQLITE_MAX_EXPR_DEPTH
- set expr "(1 [string repeat {AND 1 } $max])"
- catchsql [subst {
- SELECT $expr
- }]
- } "1 {Expression tree is too large (maximum depth $::SQLITE_MAX_EXPR_DEPTH)}"
-
- # Attempting to beat the expression depth limit using nested SELECT
- # queries causes a parser stack overflow.
- do_test sqllimits1-9.2 {
- set max $::SQLITE_MAX_EXPR_DEPTH
- set expr "SELECT 1"
- for {set i 0} {$i <= $max} {incr i} {
- set expr "SELECT ($expr)"
- }
- catchsql [subst { $expr }]
- } "1 {parser stack overflow}"
-
- if 0 {
- do_test sqllimits1-9.3 {
- execsql {
- PRAGMA max_page_count = 1000000; -- 1 GB
- CREATE TABLE v0(a);
- INSERT INTO v0 VALUES(1);
- }
- db transaction {
- for {set i 1} {$i < 200} {incr i} {
- set expr "(a [string repeat {AND 1 } 50]) AS a"
- execsql [subst {
- CREATE VIEW v${i} AS SELECT $expr FROM v[expr {$i-1}]
- }]
- }
- }
- } {}
-
- do_test sqllimits1-9.4 {
- catchsql {
- SELECT a FROM v199
- }
- } "1 {Expression tree is too large (maximum depth $::SQLITE_MAX_EXPR_DEPTH)}"
- }
- }
- #--------------------------------------------------------------------
- # Test cases sqllimits1-10.* test that the SQLITE_MAX_VDBE_OP
- # limit works as expected. The limit refers to the number of opcodes
- # in a single VDBE program.
- #
- # TODO
- #--------------------------------------------------------------------
- # Test the SQLITE_LIMIT_FUNCTION_ARG limit works. Test case names
- # match the pattern "sqllimits1-11.*".
- #
- for {set max 5} {$max<=$SQLITE_MAX_FUNCTION_ARG} {incr max} {
- do_test sqllimits1-11.$max.1 {
- set vals [list]
- sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG $::max
- for {set i 0} {$i < $::max} {incr i} {
- lappend vals $i
- }
- catchsql "SELECT max([join $vals ,])"
- } "0 [expr {$::max - 1}]"
- do_test sqllimits1-11.$max.2 {
- set vals [list]
- for {set i 0} {$i <= $::max} {incr i} {
- lappend vals $i
- }
- catchsql "SELECT max([join $vals ,])"
- } {1 {too many arguments on function max}}
- # Test that it is SQLite, and not the implementation of the
- # user function that is throwing the error.
- proc myfunc {args} {error "I don't like to be called!"}
- do_test sqllimits1-11.$max.2 {
- db function myfunc myfunc
- set vals [list]
- for {set i 0} {$i <= $::max} {incr i} {
- lappend vals $i
- }
- catchsql "SELECT myfunc([join $vals ,])"
- } {1 {too many arguments on function myfunc}}
- }
- #--------------------------------------------------------------------
- # Test cases sqllimits1-12.*: Test the SQLITE_MAX_ATTACHED limit.
- #
- ifcapable attach {
- do_test sqllimits1-12.1 {
- set max $::SQLITE_MAX_ATTACHED
- for {set i 0} {$i < ($max)} {incr i} {
- forcedelete test${i}.db test${i}.db-journal
- }
- for {set i 0} {$i < ($max)} {incr i} {
- execsql "ATTACH 'test${i}.db' AS aux${i}"
- }
- catchsql "ATTACH 'test${i}.db' AS aux${i}"
- } "1 {too many attached databases - max $::SQLITE_MAX_ATTACHED}"
- do_test sqllimits1-12.2 {
- set max $::SQLITE_MAX_ATTACHED
- for {set i 0} {$i < ($max)} {incr i} {
- execsql "DETACH aux${i}"
- }
- } {}
- }
- #--------------------------------------------------------------------
- # Test cases sqllimits1-13.*: Check that the SQLITE_MAX_VARIABLE_NUMBER
- # limit works.
- #
- do_test sqllimits1-13.1 {
- set max $::SQLITE_MAX_VARIABLE_NUMBER
- catchsql "SELECT ?[expr {$max+1}] FROM t1"
- } "1 {variable number must be between ?1 and ?$::SQLITE_MAX_VARIABLE_NUMBER}"
- do_test sqllimits1-13.2 {
- set max $::SQLITE_MAX_VARIABLE_NUMBER
- set vals [list]
- for {set i 0} {$i < ($max+3)} {incr i} {
- lappend vals ?
- }
- catchsql "SELECT [join $vals ,] FROM t1"
- } "1 {too many SQL variables}"
- #--------------------------------------------------------------------
- # Test cases sqllimits1-15.* verify that the
- # SQLITE_MAX_LIKE_PATTERN_LENGTH limit is enforced. This limit only
- # applies to the built-in LIKE operator, supplying an external
- # implementation by overriding the like() scalar function bypasses
- # this limitation.
- #
- # These tests check that the limit is not incorrectly applied to
- # the left-hand-side of the LIKE operator (the string being tested
- # against the pattern).
- #
- set SQLITE_LIMIT_LIKE_PATTERN 1000
- sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH $SQLITE_LIMIT_LIKE_PATTERN
- do_test sqllimits1-15.1 {
- set max $::SQLITE_LIMIT_LIKE_PATTERN
- set ::pattern [string repeat "A%" [expr $max/2]]
- set ::string [string repeat "A" [expr {$max*2}]]
- execsql {
- SELECT $::string LIKE $::pattern;
- }
- } {1}
- do_test sqllimits1-15.2 {
- set max $::SQLITE_LIMIT_LIKE_PATTERN
- set ::pattern [string repeat "A%" [expr {($max/2) + 1}]]
- set ::string [string repeat "A" [expr {$max*2}]]
- catchsql {
- SELECT $::string LIKE $::pattern;
- }
- } {1 {LIKE or GLOB pattern too complex}}
- #--------------------------------------------------------------------
- # This test case doesn't really belong with the other limits tests.
- # It is in this file because it is taxing to run, like the limits tests.
- #
- do_test sqllimits1-16.1 {
- set ::N [expr int(([expr pow(2,32)]/50) + 1)]
- expr (($::N*50) & 0xffffffff)<55
- } {1}
- do_test sqllimits1-16.2 {
- set ::format "[string repeat A 60][string repeat "%J" $::N]"
- catchsql {
- SELECT strftime($::format, 1);
- }
- } {1 {string or blob too big}}
- foreach {key value} [array get saved] {
- catch {set $key $value}
- }
- finish_test