109 lines
2.2 KiB
Plaintext
109 lines
2.2 KiB
Plaintext
# 2020-01-29
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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 bestindex9
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ifcapable !vtab {
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finish_test
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return
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}
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proc vtab_command {method args} {
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switch -- $method {
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xConnect {
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return $::create_table
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}
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xBestIndex {
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set hdl [lindex $args 0]
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set ::vtab_orderby [$hdl orderby]
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set ::vtab_distinct [$hdl distinct]
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return [list orderby 1]
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}
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xFilter {
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return ""
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}
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}
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return {}
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}
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proc do_bestindex9_test {tn create select orderby distinct} {
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forcedelete test.db2
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sqlite3 dbtest test.db2
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register_tcl_module dbtest
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set ::create_table $create
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dbtest eval { CREATE VIRTUAL TABLE t1 USING tcl(vtab_command); }
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dbtest eval $select
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do_test $tn.orderby [list set {} $::vtab_orderby] $orderby
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do_test $tn.distinct [list set {} $::vtab_distinct] $distinct
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dbtest close
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}
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#-------------------------------------------------------------------------
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#
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do_bestindex9_test 1.0 {
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CREATE TABLE x(k1, k2, v1, PRIMARY KEY(k1, k2))
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} {
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SELECT DISTINCT k1, k2 FROM t1
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} {{column 0 desc 0} {column 1 desc 0}} 2
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do_bestindex9_test 1.1 {
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CREATE TABLE x(k1, k2, v1, PRIMARY KEY(k1, k2)) WITHOUT ROWID
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} {
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SELECT DISTINCT k1, k2 FROM t1
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} {} 0
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do_bestindex9_test 1.2 {
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CREATE TABLE x(k1 NOT NULL, k2 NOT NULL, v1, PRIMARY KEY(k1, k2))
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} {
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SELECT DISTINCT k1, k2 FROM t1
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} {} 0
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#-------------------------------------------------------------------------
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#
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do_bestindex9_test 2 {
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CREATE TABLE x(c1, c2, c3);
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} {
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SELECT DISTINCT c1 FROM t1 ORDER BY c1
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} {{column 0 desc 0}} 3
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#-------------------------------------------------------------------------
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#
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do_bestindex9_test 3 {
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CREATE TABLE x(c1, c2, c3);
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} {
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SELECT DISTINCT c1 FROM t1 GROUP BY c1
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} {{column 0 desc 0}} 1
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do_bestindex9_test 4 {
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CREATE TABLE x(c1, c2, c3);
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} {
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CREATE TABLE t2(balls);
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SELECT DISTINCT c1 FROM t1, t2
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} {{column 0 desc 0}} 2
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finish_test
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