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#!/usr/bin/env tarantool
test = require("sqltester")
test:plan(20)
testprefix = "analyzeC"
--!./tcltestrunner.lua
-- 2014-07-22
--
-- 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 automated tests used to verify that the text terms
-- at the end of "_sql_stat1".stat are processed correctly.
--
-- (1) "unordered" means that the index cannot be used for ORDER BY
-- or for range queries
--
-- (2) "sz=NNN" sets the relative size of the index entries
--
-- (3) All other fields are silently ignored
--
-- Baseline case. Range queries work OK. Indexes can be used for
-- ORDER BY.
test:do_execsql_test(
1.0,
[[
DROP TABLE IF EXISTS t1;
CREATE TABLE t1(a INT PRIMARY KEY, b INT , c INT , d INT );
INSERT INTO t1(a,b,c,d) VALUES(1,1,2,3),(2,7,8,9),(3,4,5,6),(4,10,11,12),(5,4,8,12),(6,1,11,111);
CREATE INDEX t1b ON t1(b);
CREATE INDEX t1c ON t1(c);
ANALYZE;
DELETE FROM "_sql_stat1";
INSERT INTO "_sql_stat1"("tbl","idx","stat") VALUES('t1','t1b','12345 2'),('t1','t1c','12345 4');
ANALYZE;
SELECT b,c,d, '#' FROM t1 WHERE b BETWEEN 3 AND 8 ORDER BY d;
]], {
-- <1.0>
4, 5, 6, "#", 7, 8, 9, "#", 4, 8, 12, "#"
-- </1.0>
})
test:do_execsql_test(
1.1,
[[
EXPLAIN QUERY PLAN SELECT b, c, d, '#' FROM t1 WHERE b BETWEEN 3 AND 8 ORDER BY d;
]], {
-- <1.1>
0, 0, 0, "SEARCH TABLE T1 USING COVERING INDEX T1B (B>? AND B<?)",
0, 0, 0, "USE TEMP B-TREE FOR ORDER BY"
-- </1.1>
})
test:do_execsql_test(
1.2,
[[
SELECT d FROM t1 ORDER BY b;
]], {
-- <1.2>
3, 111, 6, 12, 9, 12
-- </1.2>
})
test:do_execsql_test(
1.3,
[[
EXPLAIN QUERY PLAN SELECT d FROM t1 ORDER BY b;
]], {
-- <1.3>
0, 0, 0, "SCAN TABLE T1 USING COVERING INDEX T1B"
-- </1.3>
})
-- Now mark the t1a index as "unordered". Range queries and ORDER BY no
-- longer use the index, but equality queries do.
--
test:do_execsql_test(
2.0,
[[
UPDATE "_sql_stat1" SET "stat"='12345 2 unordered' WHERE "idx"='t1b';
ANALYZE;
SELECT b, c, d, '#' FROM t1 WHERE b BETWEEN 3 AND 8 ORDER BY d;
]], {
-- <2.0>
4, 5, 6, "#", 7, 8, 9, "#", 4, 8, 12, "#"
-- </2.0>
})
test:do_execsql_test(
2.1,
[[
EXPLAIN QUERY PLAN SELECT b, c, d, '#' FROM t1 WHERE b BETWEEN 3 AND 8 ORDER BY d;
]], {
-- <2.1>
0, 0, 0, "SEARCH TABLE T1 USING COVERING INDEX T1B (B>? AND B<?)",
0, 0, 0, "USE TEMP B-TREE FOR ORDER BY"
-- </2.1>
})
test:do_execsql_test(
2.2,
[[
SELECT d FROM t1 ORDER BY b;
]], {
-- <2.2>
3, 111, 6, 12, 9, 12
-- </2.2>
})
test:do_execsql_test(
2.3,
[[
EXPLAIN QUERY PLAN SELECT d FROM t1 ORDER BY b;
]], {
-- <2.3>
0, 0, 0, "SCAN TABLE T1 USING COVERING INDEX T1B"
-- </2.3>
})
-- Ignore extraneous text parameters in the "_sql_stat1".stat field.
--
test:do_execsql_test(
3.0,
[[
UPDATE "_sql_stat1" SET "stat"='12345 2 whatever=5 unordered xyzzy=11' WHERE "idx"='t1b';
ANALYZE;
SELECT b, c, d, '#' FROM t1 WHERE b BETWEEN 3 AND 8 ORDER BY d;
]], {
-- <3.0>
4, 5, 6, "#", 7, 8, 9, "#", 4, 8, 12, "#"
-- </3.0>
})
test:do_execsql_test(
3.1,
[[
EXPLAIN QUERY PLAN SELECT b, c, d, '#' FROM t1 WHERE b BETWEEN 3 AND 8 ORDER BY d;
]], {
-- <3.1>
0, 0, 0, "SEARCH TABLE T1 USING COVERING INDEX T1B (B>? AND B<?)",
0, 0, 0, "USE TEMP B-TREE FOR ORDER BY"
-- </3.1>
})
test:do_execsql_test(
3.2,
[[
SELECT d FROM t1 ORDER BY b;
]], {
-- <3.2>
3, 111, 6, 12, 9, 12
-- </3.2>
})
test:do_execsql_test(
3.3,
[[
EXPLAIN QUERY PLAN SELECT d FROM t1 ORDER BY b;
]], {
-- <3.3>
0, 0, 0, "SCAN TABLE T1 USING COVERING INDEX T1B"
-- </3.3>
})
-- The sz=NNN parameter determines which index to scan
--
test:do_execsql_test(
4.0,
[[
DROP INDEX t1b ON t1;
CREATE INDEX t1bc ON t1(b,c);
CREATE INDEX t1db ON t1(d,b);
DELETE FROM "_sql_stat1";
INSERT INTO "_sql_stat1"("tbl","idx","stat") VALUES('t1','t1bc','12345 3 2 sz=10'),('t1','t1db','12345 3 2 sz=20');
ANALYZE;
SELECT count(b) FROM t1;
]], {
-- <4.0>
6
-- </4.0>
})
test:do_execsql_test(
4.1,
[[
EXPLAIN QUERY PLAN SELECT count(b) FROM t1;
]], {
-- <4.1>
0, 0, 0, "SCAN TABLE T1"
-- </4.1>
})
test:do_execsql_test(
4.2,
[[
DELETE FROM "_sql_stat1";
INSERT INTO "_sql_stat1"("tbl","idx","stat") VALUES('t1','t1bc','12345 3 2 sz=20'),('t1','t1db','12345 3 2 sz=10');
ANALYZE;
SELECT count(b) FROM t1;
]], {
-- <4.2>
6
-- </4.2>
})
test:do_execsql_test(
4.3,
[[
EXPLAIN QUERY PLAN SELECT count(b) FROM t1;
]], {
-- <4.3>
0, 0, 0, "SCAN TABLE T1"
-- </4.3>
})
-- The sz=NNN parameter works even if there is other extraneous text
-- in the sql_stat1.stat column.
--
test:do_execsql_test(
5.0,
[[
DELETE FROM "_sql_stat1";
INSERT INTO "_sql_stat1"("tbl","idx","stat")
VALUES('t1','t1bc','12345 3 2 x=5 sz=10 y=10'),
('t1','t1db','12345 3 2 whatever sz=20 junk');
ANALYZE;
SELECT count(b) FROM t1;
]], {
-- <5.0>
6
-- </5.0>
})
test:do_execsql_test(
5.1,
[[
EXPLAIN QUERY PLAN
SELECT count(b) FROM t1;
]], {
-- <5.1>
0, 0, 0, "SCAN TABLE T1"
-- </5.1>
})
test:do_execsql_test(
5.2,
[[
DELETE FROM "_sql_stat1";
INSERT INTO "_sql_stat1"("tbl","idx","stat") VALUES('t1','t1db','12345 3 2 x=5 sz=10 y=10'), ('t1','t1bc','12345 3 2 whatever sz=20 junk');
ANALYZE;
SELECT count(b) FROM t1;
]], {
-- <5.2>
6
-- </5.2>
})
test:do_execsql_test(
5.3,
[[
EXPLAIN QUERY PLAN SELECT count(b) FROM t1;
]], {
-- <5.3>
0, 0, 0, "SCAN TABLE T1"
-- </5.3>
})
test:finish_test()
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