506 lines
16 KiB
Plaintext
506 lines
16 KiB
Plaintext
# 2009 August 06
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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# This file implements regression tests for SQLite library. This file
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# implements tests for the extra functionality provided by the ANALYZE
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# command when the library is compiled with SQLITE_ENABLE_STAT2 defined.
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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ifcapable !stat2 {
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finish_test
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return
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}
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#--------------------------------------------------------------------
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# Test organization:
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#
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# analyze2-1.*: Tests to verify that ANALYZE creates and populates the
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# sqlite_stat2 table as expected.
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#
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# analyze2-2.*: Test that when a table has two indexes on it and either
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# index may be used for the scan, the index suggested by
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# the contents of sqlite_stat2 table is prefered.
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#
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# analyze2-3.*: Similar to the previous block of tests, but using tables
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# that contain a mixture of NULL, numeric, text and blob
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# values.
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#
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# analyze2-4.*: Check that when an indexed column uses a collation other
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# than BINARY, the collation is taken into account when
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# using the contents of sqlite_stat2 to estimate the cost
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# of a range scan.
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#
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# analyze2-5.*: Check that collation sequences are used as described above
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# even when the only available version of the collation
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# function require UTF-16 encoded arguments.
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#
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# analyze2-6.*: Check that the library behaves correctly when one of the
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# sqlite_stat2 or sqlite_stat1 tables are missing.
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#
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# analyze2-7.*: Check that in a shared-schema situation, nothing goes
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# wrong if sqlite_stat2 data is read by one connection,
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# and freed by another.
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#
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proc eqp {sql {db db}} {
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uplevel execsql [list "EXPLAIN QUERY PLAN $sql"] $db
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}
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do_test analyze2-1.1 {
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execsql { CREATE TABLE t1(x PRIMARY KEY) }
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for {set i 0} {$i < 1000} {incr i} {
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execsql { INSERT INTO t1 VALUES($i) }
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}
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execsql {
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ANALYZE;
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SELECT * FROM sqlite_stat2;
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}
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} [list t1 sqlite_autoindex_t1_1 0 50 \
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t1 sqlite_autoindex_t1_1 1 149 \
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t1 sqlite_autoindex_t1_1 2 249 \
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t1 sqlite_autoindex_t1_1 3 349 \
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t1 sqlite_autoindex_t1_1 4 449 \
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t1 sqlite_autoindex_t1_1 5 549 \
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t1 sqlite_autoindex_t1_1 6 649 \
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t1 sqlite_autoindex_t1_1 7 749 \
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t1 sqlite_autoindex_t1_1 8 849 \
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t1 sqlite_autoindex_t1_1 9 949 \
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]
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do_test analyze2-1.2 {
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execsql {
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DELETE FROM t1 WHERe x>9;
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ANALYZE;
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SELECT tbl, idx, group_concat(sample, ' ') FROM sqlite_stat2;
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}
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} {t1 sqlite_autoindex_t1_1 {0 1 2 3 4 5 6 7 8 9}}
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do_test analyze2-1.3 {
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execsql {
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DELETE FROM t1 WHERE x>8;
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ANALYZE;
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SELECT * FROM sqlite_stat2;
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}
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} {}
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do_test analyze2-1.4 {
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execsql {
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DELETE FROM t1;
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ANALYZE;
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SELECT * FROM sqlite_stat2;
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}
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} {}
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do_test analyze2-2.1 {
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execsql {
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BEGIN;
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DROP TABLE t1;
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CREATE TABLE t1(x, y);
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CREATE INDEX t1_x ON t1(x);
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CREATE INDEX t1_y ON t1(y);
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}
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for {set i 0} {$i < 1000} {incr i} {
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execsql { INSERT INTO t1 VALUES($i, $i) }
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}
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execsql COMMIT
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execsql ANALYZE
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} {}
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do_test analyze2-2.2 {
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eqp "SELECT * FROM t1 WHERE x>500 AND y>700"
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} {0 0 {TABLE t1 WITH INDEX t1_y}}
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do_test analyze2-2.3 {
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eqp "SELECT * FROM t1 WHERE x>700 AND y>500"
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} {0 0 {TABLE t1 WITH INDEX t1_x}}
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do_test analyze2-2.3 {
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eqp "SELECT * FROM t1 WHERE y>700 AND x>500"
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} {0 0 {TABLE t1 WITH INDEX t1_y}}
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do_test analyze2-2.4 {
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eqp "SELECT * FROM t1 WHERE y>500 AND x>700"
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} {0 0 {TABLE t1 WITH INDEX t1_x}}
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do_test analyze2-2.5 {
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eqp "SELECT * FROM t1 WHERE x BETWEEN 100 AND 200 AND y BETWEEN 400 AND 700"
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} {0 0 {TABLE t1 WITH INDEX t1_x}}
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do_test analyze2-2.6 {
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eqp "SELECT * FROM t1 WHERE x BETWEEN 100 AND 500 AND y BETWEEN 400 AND 700"
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} {0 0 {TABLE t1 WITH INDEX t1_y}}
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do_test analyze2-2.7 {
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eqp "SELECT * FROM t1 WHERE x BETWEEN -400 AND -300 AND y BETWEEN 100 AND 300"
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} {0 0 {TABLE t1 WITH INDEX t1_x}}
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do_test analyze2-2.8 {
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eqp "SELECT * FROM t1 WHERE x BETWEEN 100 AND 300 AND y BETWEEN -400 AND -300"
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} {0 0 {TABLE t1 WITH INDEX t1_y}}
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do_test analyze2-2.9 {
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eqp "SELECT * FROM t1 WHERE x BETWEEN 500 AND 100 AND y BETWEEN 100 AND 300"
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} {0 0 {TABLE t1 WITH INDEX t1_x}}
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do_test analyze2-2.10 {
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eqp "SELECT * FROM t1 WHERE x BETWEEN 100 AND 300 AND y BETWEEN 500 AND 100"
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} {0 0 {TABLE t1 WITH INDEX t1_y}}
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do_test analyze2-3.1 {
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set alphabet [list a b c d e f g h i j]
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execsql BEGIN
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for {set i 0} {$i < 1000} {incr i} {
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set str [lindex $alphabet [expr ($i/100)%10]]
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append str [lindex $alphabet [expr ($i/ 10)%10]]
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append str [lindex $alphabet [expr ($i/ 1)%10]]
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execsql { INSERT INTO t1 VALUES($str, $str) }
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}
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execsql COMMIT
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execsql ANALYZE
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execsql {
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SELECT tbl,idx,group_concat(sample,' ')
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FROM sqlite_stat2
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WHERE idx = 't1_x'
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GROUP BY tbl,idx
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}
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} {t1 t1_x {100 299 499 699 899 ajj cjj ejj gjj ijj}}
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do_test analyze2-3.2 {
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execsql {
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SELECT tbl,idx,group_concat(sample,' ')
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FROM sqlite_stat2
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WHERE idx = 't1_y'
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GROUP BY tbl,idx
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}
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} {t1 t1_y {100 299 499 699 899 ajj cjj ejj gjj ijj}}
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do_test analyze2-3.3 {
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eqp "SELECT * FROM t1 WHERE x BETWEEN 100 AND 500 AND y BETWEEN 'a' AND 'b'"
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} {0 0 {TABLE t1 WITH INDEX t1_y}}
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do_test analyze2-3.4 {
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eqp "SELECT * FROM t1 WHERE x BETWEEN 100 AND 400 AND y BETWEEN 'a' AND 'h'"
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} {0 0 {TABLE t1 WITH INDEX t1_x}}
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do_test analyze2-3.5 {
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eqp "SELECT * FROM t1 WHERE x<'a' AND y>'h'"
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} {0 0 {TABLE t1 WITH INDEX t1_y}}
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do_test analyze2-3.6 {
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eqp "SELECT * FROM t1 WHERE x<444 AND y>'h'"
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} {0 0 {TABLE t1 WITH INDEX t1_y}}
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do_test analyze2-3.7 {
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eqp "SELECT * FROM t1 WHERE x<221 AND y>'g'"
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} {0 0 {TABLE t1 WITH INDEX t1_x}}
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do_test analyze2-4.1 {
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execsql { CREATE TABLE t3(a COLLATE nocase, b) }
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execsql { CREATE INDEX t3a ON t3(a) }
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execsql { CREATE INDEX t3b ON t3(b) }
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set alphabet [list A b C d E f G h I j]
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execsql BEGIN
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for {set i 0} {$i < 1000} {incr i} {
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set str [lindex $alphabet [expr ($i/100)%10]]
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append str [lindex $alphabet [expr ($i/ 10)%10]]
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append str [lindex $alphabet [expr ($i/ 1)%10]]
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execsql { INSERT INTO t3 VALUES($str, $str) }
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}
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execsql COMMIT
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execsql ANALYZE
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} {}
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do_test analyze2-4.2 {
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execsql {
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SELECT tbl,idx,group_concat(sample,' ')
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FROM sqlite_stat2
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WHERE idx = 't3a'
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GROUP BY tbl,idx
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}
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} {t3 t3a {AfA bEj CEj dEj EEj fEj GEj hEj IEj jEj}}
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do_test analyze2-4.3 {
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execsql {
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SELECT tbl,idx,group_concat(sample,' ')
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FROM sqlite_stat2
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WHERE idx = 't3b'
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GROUP BY tbl,idx
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}
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} {t3 t3b {AbA CIj EIj GIj IIj bIj dIj fIj hIj jIj}}
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do_test analyze2-4.4 {
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eqp "SELECT * FROM t3 WHERE a > 'A' AND a < 'C' AND b > 'A' AND b < 'C'"
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} {0 0 {TABLE t3 WITH INDEX t3b}}
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do_test analyze2-4.5 {
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eqp "SELECT * FROM t3 WHERE a > 'A' AND a < 'c' AND b > 'A' AND b < 'c'"
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} {0 0 {TABLE t3 WITH INDEX t3a}}
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ifcapable utf16 {
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proc test_collate {enc lhs rhs} {
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# puts $enc
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return [string compare $lhs $rhs]
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}
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do_test analyze2-5.1 {
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add_test_collate db 0 0 1
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execsql { CREATE TABLE t4(x COLLATE test_collate) }
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execsql { CREATE INDEX t4x ON t4(x) }
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set alphabet [list a b c d e f g h i j]
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execsql BEGIN
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for {set i 0} {$i < 1000} {incr i} {
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set str [lindex $alphabet [expr ($i/100)%10]]
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append str [lindex $alphabet [expr ($i/ 10)%10]]
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append str [lindex $alphabet [expr ($i/ 1)%10]]
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execsql { INSERT INTO t4 VALUES($str) }
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}
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execsql COMMIT
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execsql ANALYZE
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} {}
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do_test analyze2-5.2 {
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execsql {
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SELECT tbl,idx,group_concat(sample,' ')
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FROM sqlite_stat2
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WHERE tbl = 't4'
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GROUP BY tbl,idx
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}
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} {t4 t4x {afa bej cej dej eej fej gej hej iej jej}}
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do_test analyze2-5.3 {
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eqp "SELECT * FROM t4 WHERE x>'ccc'"
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} {0 0 {TABLE t4 WITH INDEX t4x}}
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do_test analyze2-5.4 {
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eqp "SELECT * FROM t4 AS t41, t4 AS t42 WHERE t41.x>'ccc' AND t42.x>'ggg'"
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} {0 1 {TABLE t4 AS t42 WITH INDEX t4x} 1 0 {TABLE t4 AS t41 WITH INDEX t4x}}
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do_test analyze2-5.5 {
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eqp "SELECT * FROM t4 AS t41, t4 AS t42 WHERE t41.x>'ddd' AND t42.x>'ccc'"
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} {0 0 {TABLE t4 AS t41 WITH INDEX t4x} 1 1 {TABLE t4 AS t42 WITH INDEX t4x}}
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}
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#--------------------------------------------------------------------
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# These tests, analyze2-6.*, verify that the library behaves correctly
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# when one of the sqlite_stat1 and sqlite_stat2 tables is missing.
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#
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# If the sqlite_stat1 table is not present, then the sqlite_stat2
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# table is not read. However, if it is the sqlite_stat2 table that
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# is missing, the data in the sqlite_stat1 table is still used.
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#
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# Tests analyze2-6.1.* test the libary when the sqlite_stat2 table
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# is missing. Tests analyze2-6.2.* test the library when sqlite_stat1
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# is not present.
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#
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do_test analyze2-6.0 {
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execsql {
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DROP TABLE IF EXISTS t4;
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CREATE TABLE t5(a, b); CREATE INDEX t5i ON t5(a, b);
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CREATE TABLE t6(a, b); CREATE INDEX t6i ON t6(a, b);
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}
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for {set ii 0} {$ii < 20} {incr ii} {
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execsql {
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INSERT INTO t5 VALUES($ii, $ii);
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INSERT INTO t6 VALUES($ii/10, $ii/10);
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}
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}
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execsql {
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CREATE TABLE master AS
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SELECT * FROM sqlite_master WHERE name LIKE 'sqlite_stat%'
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}
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} {}
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do_test analyze2-6.1.1 {
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eqp {SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
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t5.a = 1 AND
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t6.a = 1 AND t6.b = 1
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}
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} {0 1 {TABLE t6 WITH INDEX t6i} 1 0 {TABLE t5 USING PRIMARY KEY}}
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do_test analyze2-6.1.2 {
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db cache flush
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execsql ANALYZE
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eqp {SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
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t5.a = 1 AND
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t6.a = 1 AND t6.b = 1
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}
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} {0 0 {TABLE t5 WITH INDEX t5i} 1 1 {TABLE t6 USING PRIMARY KEY}}
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do_test analyze2-6.1.3 {
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sqlite3 db test.db
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eqp { SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
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t5.a = 1 AND
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t6.a = 1 AND t6.b = 1
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}
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} {0 0 {TABLE t5 WITH INDEX t5i} 1 1 {TABLE t6 USING PRIMARY KEY}}
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do_test analyze2-6.1.4 {
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execsql {
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PRAGMA writable_schema = 1;
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DELETE FROM sqlite_master WHERE tbl_name = 'sqlite_stat2';
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}
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sqlite3 db test.db
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eqp { SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
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t5.a = 1 AND
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t6.a = 1 AND t6.b = 1
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}
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} {0 0 {TABLE t5 WITH INDEX t5i} 1 1 {TABLE t6 USING PRIMARY KEY}}
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do_test analyze2-6.1.5 {
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execsql {
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PRAGMA writable_schema = 1;
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DELETE FROM sqlite_master WHERE tbl_name = 'sqlite_stat1';
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}
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sqlite3 db test.db
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eqp { SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
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t5.a = 1 AND
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t6.a = 1 AND t6.b = 1
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}
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} {0 1 {TABLE t6 WITH INDEX t6i} 1 0 {TABLE t5 USING PRIMARY KEY}}
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do_test analyze2-6.1.6 {
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execsql {
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PRAGMA writable_schema = 1;
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INSERT INTO sqlite_master SELECT * FROM master;
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}
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sqlite3 db test.db
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eqp { SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
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t5.a = 1 AND
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t6.a = 1 AND t6.b = 1
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}
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} {0 0 {TABLE t5 WITH INDEX t5i} 1 1 {TABLE t6 USING PRIMARY KEY}}
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do_test analyze2-6.2.1 {
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execsql {
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DELETE FROM sqlite_stat1;
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DELETE FROM sqlite_stat2;
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}
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sqlite3 db test.db
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eqp { SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
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t5.a>1 AND t5.a<15 AND
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t6.a>1
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}
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} {0 0 {TABLE t5 WITH INDEX t5i} 1 1 {TABLE t6 USING PRIMARY KEY}}
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do_test analyze2-6.2.2 {
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db cache flush
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execsql ANALYZE
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eqp { SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
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t5.a>1 AND t5.a<15 AND
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t6.a>1
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}
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} {0 1 {TABLE t6 WITH INDEX t6i} 1 0 {TABLE t5 USING PRIMARY KEY}}
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do_test analyze2-6.2.3 {
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sqlite3 db test.db
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eqp { SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
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t5.a>1 AND t5.a<15 AND
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t6.a>1
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}
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} {0 1 {TABLE t6 WITH INDEX t6i} 1 0 {TABLE t5 USING PRIMARY KEY}}
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do_test analyze2-6.2.4 {
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execsql {
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PRAGMA writable_schema = 1;
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DELETE FROM sqlite_master WHERE tbl_name = 'sqlite_stat1';
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}
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sqlite3 db test.db
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eqp { SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
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t5.a>1 AND t5.a<15 AND
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t6.a>1
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}
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} {0 0 {TABLE t5 WITH INDEX t5i} 1 1 {TABLE t6 USING PRIMARY KEY}}
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do_test analyze2-6.2.5 {
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execsql {
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PRAGMA writable_schema = 1;
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DELETE FROM sqlite_master WHERE tbl_name = 'sqlite_stat2';
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}
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sqlite3 db test.db
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eqp { SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
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t5.a>1 AND t5.a<15 AND
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t6.a>1
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}
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} {0 0 {TABLE t5 WITH INDEX t5i} 1 1 {TABLE t6 USING PRIMARY KEY}}
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do_test analyze2-6.2.6 {
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execsql {
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PRAGMA writable_schema = 1;
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INSERT INTO sqlite_master SELECT * FROM master;
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}
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sqlite3 db test.db
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execsql ANALYZE
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eqp { SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
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t5.a>1 AND t5.a<15 AND
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t6.a>1
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}
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} {0 1 {TABLE t6 WITH INDEX t6i} 1 0 {TABLE t5 USING PRIMARY KEY}}
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#--------------------------------------------------------------------
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# These tests, analyze2-7.*, test that the sqlite_stat2 functionality
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# works in shared-cache mode. Note that these tests reuse the database
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# created for the analyze2-6.* tests.
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#
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ifcapable shared_cache {
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db close
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set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
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proc incr_schema_cookie {zDb} {
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foreach iOffset {24 40} {
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set cookie [hexio_get_int [hexio_read $zDb $iOffset 4]]
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incr cookie
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hexio_write $zDb $iOffset [hexio_render_int32 $cookie]
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}
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}
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do_test analyze2-7.1 {
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sqlite3 db1 test.db
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sqlite3 db2 test.db
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db1 cache size 0
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db2 cache size 0
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execsql { SELECT count(*) FROM t5 } db1
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} {20}
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do_test analyze2-7.2 {
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incr_schema_cookie test.db
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execsql { SELECT count(*) FROM t5 } db2
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} {20}
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do_test analyze2-7.3 {
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incr_schema_cookie test.db
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execsql { SELECT count(*) FROM t5 } db1
|
|
} {20}
|
|
do_test analyze2-7.4 {
|
|
incr_schema_cookie test.db
|
|
execsql { SELECT count(*) FROM t5 } db2
|
|
} {20}
|
|
|
|
do_test analyze2-7.5 {
|
|
eqp { SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
|
|
t5.a>1 AND t5.a<15 AND
|
|
t6.a>1
|
|
} db1
|
|
} {0 1 {TABLE t6 WITH INDEX t6i} 1 0 {TABLE t5 USING PRIMARY KEY}}
|
|
do_test analyze2-7.6 {
|
|
incr_schema_cookie test.db
|
|
execsql { SELECT * FROM sqlite_master } db2
|
|
eqp { SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
|
|
t5.a>1 AND t5.a<15 AND
|
|
t6.a>1
|
|
} db2
|
|
} {0 1 {TABLE t6 WITH INDEX t6i} 1 0 {TABLE t5 USING PRIMARY KEY}}
|
|
do_test analyze2-7.7 {
|
|
incr_schema_cookie test.db
|
|
execsql { SELECT * FROM sqlite_master } db1
|
|
eqp { SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
|
|
t5.a>1 AND t5.a<15 AND
|
|
t6.a>1
|
|
} db1
|
|
} {0 1 {TABLE t6 WITH INDEX t6i} 1 0 {TABLE t5 USING PRIMARY KEY}}
|
|
|
|
do_test analyze2-7.8 {
|
|
execsql { DELETE FROM sqlite_stat2 } db2
|
|
execsql { SELECT * FROM sqlite_master } db1
|
|
eqp { SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
|
|
t5.a>1 AND t5.a<15 AND
|
|
t6.a>1
|
|
} db1
|
|
} {0 1 {TABLE t6 WITH INDEX t6i} 1 0 {TABLE t5 USING PRIMARY KEY}}
|
|
do_test analyze2-7.9 {
|
|
execsql { SELECT * FROM sqlite_master } db2
|
|
eqp { SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
|
|
t5.a>1 AND t5.a<15 AND
|
|
t6.a>1
|
|
} db2
|
|
} {0 1 {TABLE t6 WITH INDEX t6i} 1 0 {TABLE t5 USING PRIMARY KEY}}
|
|
|
|
do_test analyze2-7.10 {
|
|
incr_schema_cookie test.db
|
|
execsql { SELECT * FROM sqlite_master } db1
|
|
eqp { SELECT * FROM t5,t6 WHERE t5.rowid=t6.rowid AND
|
|
t5.a>1 AND t5.a<15 AND
|
|
t6.a>1
|
|
} db1
|
|
} {0 0 {TABLE t5 WITH INDEX t5i} 1 1 {TABLE t6 USING PRIMARY KEY}}
|
|
|
|
db1 close
|
|
db2 close
|
|
sqlite3_enable_shared_cache $::enable_shared_cache
|
|
}
|
|
|
|
finish_test
|