Adding upstream version 1.37.0.
Signed-off-by: Daniel Baumann <daniel@debian.org>
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237
testdata/tcl/scanstatus2.test
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237
testdata/tcl/scanstatus2.test
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# 2022 December 5
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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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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set testprefix scanstatus2
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ifcapable !scanstatus {
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finish_test
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return
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}
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do_execsql_test 1.0 {
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CREATE TABLE t1(a, b);
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CREATE TABLE t2(x, y);
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INSERT INTO t1 VALUES(1, 2);
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INSERT INTO t1 VALUES(3, 4);
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INSERT INTO t2 VALUES('a', 'b');
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INSERT INTO t2 VALUES('c', 'd');
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INSERT INTO t2 VALUES('e', 'f');
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}
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proc do_zexplain_test {v2 tn sql res} {
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db eval $sql
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set stmt [db version -last-stmt-ptr]
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set idx 0
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set ret [list]
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set cmd sqlite3_stmt_scanstatus
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set f [list]
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if {$v2} { lappend f complex }
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while {1} {
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set r [sqlite3_stmt_scanstatus -flags $f $stmt $idx]
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if {[llength $r]==0} break
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lappend ret [dict get $r zExplain]
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incr idx
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}
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uplevel [list do_test $tn [list set {} $ret] [list {*}$res]]
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}
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proc get_cycles {stmt} {
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set r [sqlite3_stmt_scanstatus $stmt -1]
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dict get $r nCycle
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}
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proc foreach_scan {varname stmt body} {
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upvar $varname var
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for {set ii 0} {1} {incr ii} {
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set r [sqlite3_stmt_scanstatus -flags complex $stmt $ii]
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if {[llength $r]==0} break
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array set var $r
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uplevel $body
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}
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}
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proc get_eqp_graph {stmt iPar nIndent} {
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set res ""
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foreach_scan A $stmt {
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if {$A(iParentId)==$iPar} {
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set txt $A(zExplain)
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if {$A(nCycle)>=0} {
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append txt " (nCycle=$A(nCycle))"
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}
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append res "[string repeat - $nIndent]$txt\n"
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append res [get_eqp_graph $stmt $A(iSelectId) [expr $nIndent+2]]
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}
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}
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set res
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}
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proc get_graph {stmt} {
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set nCycle [get_cycles $stmt]
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set res "QUERY (nCycle=$nCycle)\n"
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append res [get_eqp_graph $stmt 0 2]
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}
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proc do_graph_test {tn sql res} {
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db eval $sql
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set stmt [db version -last-stmt-ptr]
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set graph [string trim [get_graph $stmt]]
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set graph [regsub -all {nCycle=[0-9]+} $graph nCycle=nnn]
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uplevel [list do_test $tn [list set {} $graph] [string trim $res]]
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}
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proc puts_graph {sql} {
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db eval $sql
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set stmt [db version -last-stmt-ptr]
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puts [string trim [get_graph $stmt]]
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}
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do_zexplain_test 0 1.1 {
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SELECT (SELECT a FROM t1 WHERE b=x) FROM t2 WHERE y=2
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} {
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{SCAN t2}
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{SCAN t1}
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}
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do_zexplain_test 1 1.2 {
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SELECT (SELECT a FROM t1 WHERE b=x) FROM t2 WHERE y=2
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} {
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{SCAN t2}
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{CORRELATED SCALAR SUBQUERY 1}
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{SCAN t1}
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}
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do_graph_test 1.3 {
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SELECT (SELECT a FROM t1 WHERE b=x) FROM t2 WHERE y=2
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} {
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QUERY (nCycle=nnn)
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--SCAN t2 (nCycle=nnn)
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--CORRELATED SCALAR SUBQUERY 1 (nCycle=nnn)
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----SCAN t1 (nCycle=nnn)
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}
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do_graph_test 1.4 {
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WITH v2(x,y) AS MATERIALIZED (
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SELECT x,y FROM t2
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)
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SELECT * FROM t1, v2 ORDER BY y;
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} {
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QUERY (nCycle=nnn)
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--MATERIALIZE v2 (nCycle=nnn)
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----SCAN t2 (nCycle=nnn)
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--SCAN v2 (nCycle=nnn)
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--SCAN t1 (nCycle=nnn)
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--USE TEMP B-TREE FOR ORDER BY (nCycle=nnn)
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}
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#-------------------------------------------------------------------------
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ifcapable fts5 {
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reset_db
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do_execsql_test 2.0 {
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CREATE VIRTUAL TABLE ft USING fts5(a);
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INSERT INTO ft VALUES('abc');
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INSERT INTO ft VALUES('def');
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INSERT INTO ft VALUES('ghi');
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}
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do_graph_test 2.1 {
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SELECT * FROM ft('def')
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} {
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QUERY (nCycle=nnn)
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--SCAN ft VIRTUAL TABLE INDEX 0:M1 (nCycle=nnn)
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}
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}
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#-------------------------------------------------------------------------
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reset_db
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do_execsql_test 3.0 {
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CREATE TABLE x1(a, b);
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CREATE TABLE x2(c, d);
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WITH s(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<1000)
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INSERT INTO x1 SELECT i, i FROM s;
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INSERT INTO x2 SELECT a, b FROM x1;
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}
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do_graph_test 2.1 {
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SELECT * FROM x1, x2 WHERE c=+a;
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} {
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QUERY (nCycle=nnn)
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--SCAN x1 (nCycle=nnn)
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--CREATE AUTOMATIC INDEX ON x2(c, d) (nCycle=nnn)
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--SEARCH x2 USING AUTOMATIC COVERING INDEX (c=?) (nCycle=nnn)
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}
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#-------------------------------------------------------------------------
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reset_db
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do_execsql_test 4.0 {
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CREATE TABLE rt1 (id INTEGER PRIMARY KEY, x1, x2);
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CREATE TABLE rt2 (id, x1, x2);
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}
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do_graph_test 4.1 {
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SELECT * FROM rt1, rt2 WHERE rt1.id%2 AND rt2.x1=rt1.x1;
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} {
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QUERY (nCycle=nnn)
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--SCAN rt1 (nCycle=nnn)
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--CREATE AUTOMATIC INDEX ON rt2(x1, id, x2) (nCycle=nnn)
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--SEARCH rt2 USING AUTOMATIC COVERING INDEX (x1=?) (nCycle=nnn)
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}
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do_graph_test 4.2 {
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SELECT rt2.id FROM rt1, rt2 WHERE rt1.id%2 AND rt2.x1=rt1.x1;
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} {
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QUERY (nCycle=nnn)
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--SCAN rt1 (nCycle=nnn)
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--CREATE AUTOMATIC INDEX ON rt2(x1, id) (nCycle=nnn)
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--SEARCH rt2 USING AUTOMATIC COVERING INDEX (x1=?) (nCycle=nnn)
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}
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do_graph_test 4.3 {
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SELECT rt2.id FROM rt1, rt2 WHERE rt1.id%2 AND (rt2.x1+1)=(rt1.x1+1);
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} {
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QUERY (nCycle=nnn)
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--SCAN rt1 (nCycle=nnn)
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--SCAN rt2 (nCycle=nnn)
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}
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do_graph_test 4.4 {
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SELECT rt2.id FROM rt1, rt2 WHERE rt1.id%2 AND rt2.x1=(rt1.x1+1) AND rt2.id>5;
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} {
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QUERY (nCycle=nnn)
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--SCAN rt1 (nCycle=nnn)
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--CREATE AUTOMATIC INDEX ON rt2(x1, id) WHERE <expr> (nCycle=nnn)
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--SEARCH rt2 USING AUTOMATIC PARTIAL COVERING INDEX (x1=?) (nCycle=nnn)
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}
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do_graph_test 4.5 {
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SELECT v1.cnt FROM rt1, (
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SELECT count(*) AS cnt, rt2.x1 AS x1 FROM rt2 GROUP BY x1
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) AS v1 WHERE rt1.x1=v1.x1
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} {
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QUERY (nCycle=nnn)
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--CO-ROUTINE v1
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----SCAN rt2 (nCycle=nnn)
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----USE TEMP B-TREE FOR GROUP BY
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--SCAN rt1 (nCycle=nnn)
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--CREATE AUTOMATIC INDEX ON v1(x1, cnt) (nCycle=nnn)
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--SEARCH v1 USING AUTOMATIC COVERING INDEX (x1=?) (nCycle=nnn)
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}
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finish_test
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