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Overview
Comment:More test cases for indexes on large numeric values.
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SHA1:c220741a62808c64d42c6161152ab06af74cb48c
User & Date: drh 2015-11-06 04:14:38
Context
2015-11-06
14:59
A different approach to handling integer/float comparisons. This seems to work better on systems where "long double" and "double" are the same type, but still needs refinement and testing. check-in: a3f7614b user: drh tags: int-float-precision
04:14
More test cases for indexes on large numeric values. check-in: c220741a user: drh tags: int-float-precision
03:37
Some simple test cases from the mailing list. check-in: 1d642b73 user: drh tags: int-float-precision
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Changes to test/numindex1.test.

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do_execsql_test numindex1-1.3 {
  SELECT x.a || CASE WHEN x.b==y.b THEN '==' ELSE '<>' END || y.a
    FROM t2 AS x, t2 AS y
   ORDER BY +x.a, +x.b;
} {b==b b==c b<>d c==b c==c c<>d d<>b d<>c d==d}





































finish_test







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do_execsql_test numindex1-1.3 {
  SELECT x.a || CASE WHEN x.b==y.b THEN '==' ELSE '<>' END || y.a
    FROM t2 AS x, t2 AS y
   ORDER BY +x.a, +x.b;
} {b==b b==c b<>d c==b c==c c<>d d<>b d<>c d==d}

# New test cases
#
do_execsql_test numindex1-2.1 {
  DROP TABLE IF EXISTS t1;
  CREATE TABLE t1(a INTEGER PRIMARY KEY,b);
  CREATE INDEX t1b ON t1(b);
  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
  INSERT INTO t1(a,b) SELECT x, 10000000000000004.0 FROM c
   WHERE x NOT IN (23,37);
  INSERT INTO t1(a,b) VALUES(23,10000000000000005);
  INSERT INTO t1(a,b) VALUES(37,10000000000000003);
  DELETE FROM t1 WHERE a NOT IN (23,37);
  PRAGMA integrity_check;
} {ok}

do_execsql_test numindex1-3.1 {
  DROP TABLE IF EXISTS t1;
  CREATE TABLE t1(a INTEGER PRIMARY KEY,b);
  CREATE INDEX t1b ON t1(b);
  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<20)
  INSERT INTO t1(a,b) SELECT x, 100000000000000005.0
    FROM c WHERE x NOT IN (3,5,7,11,13,17,19);
  INSERT INTO t1(a,b) VALUES(3,100000000000000005);
  INSERT INTO t1(a,b) VALUES(5,100000000000000000);
  INSERT INTO t1(a,b) VALUES(7,100000000000000008);
  INSERT INTO t1(a,b) VALUES(11,100000000000000006);
  INSERT INTO t1(a,b) VALUES(13,100000000000000001);
  INSERT INTO t1(a,b) VALUES(17,100000000000000004);
  INSERT INTO t1(a,b) VALUES(19,100000000000000003);
  PRAGMA integrity_check;
} {ok}

do_execsql_test numindex1-3.2 {
  SELECT a FROM t1 ORDER BY b;
} {1 2 4 5 6 8 9 10 12 14 15 16 18 20 13 19 17 3 11 7}

finish_test