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Overview
Comment:New test cases for date/time functions in indexes on expressions, in the WHERE clause of partial indexes, and in CHECK constraints.
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SHA3-256:b7f70c7fcabc10b8b3e62fe5ac68476cec23acaee037c7250ff70bca3f3ab541
User & Date: drh 2017-07-20 14:36:26
Context
2017-07-20
15:08
Enhance the built-in date/time functions so that they can be used in CHECK constraints, in the WHERE clause or partial indexes, and index expressions, provided that none of the non-deterministic keywords ("now", "localtime", "utc") are used as arguments. check-in: a90c062d user: drh tags: trunk
14:36
New test cases for date/time functions in indexes on expressions, in the WHERE clause of partial indexes, and in CHECK constraints. Closed-Leaf check-in: b7f70c7f user: drh tags: index-on-date-func
13:17
Combine the Parse.ckBase and Parse.iSelfTab fields into just Parse.iSelfTab. This fixes a problem with date/time functions in check-constraints. Add some test cases for date/time functions in index expressions and check constraints. check-in: 22eda098 user: drh tags: index-on-date-func
Changes
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Changes to test/date2.test.

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}
do_catchsql_test date2-210 {
  INSERT INTO t2(x,y) VALUES(3, 'now');
} {1 {non-deterministic function in index expression or CHECK constraint}}
do_execsql_test date2-220 {
  SELECT x, y FROM t2 ORDER BY x;
} {1 2017-07-20 2 xyzzy}


















































































finish_test








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}
do_catchsql_test date2-210 {
  INSERT INTO t2(x,y) VALUES(3, 'now');
} {1 {non-deterministic function in index expression or CHECK constraint}}
do_execsql_test date2-220 {
  SELECT x, y FROM t2 ORDER BY x;
} {1 2017-07-20 2 xyzzy}

do_execsql_test date2-300 {
  CREATE TABLE t3(a INTEGER PRIMARY KEY,b);
  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<1000)
    INSERT INTO t3(a,b) SELECT x, julianday('2017-07-01')+x FROM c;
  UPDATE t3 SET b='now' WHERE a=500;
}
do_catchsql_test date2-310 {
  CREATE INDEX t3b1 ON t3(datetime(b));
} {1 {non-deterministic function in index expression or CHECK constraint}}
do_catchsql_test date2-320 {
  CREATE INDEX t3b1 ON t3(datetime(b)) WHERE typeof(b)='real';
} {0 {}}
do_execsql_test date2-330 {
  EXPLAIN QUERY PLAN
  SELECT a FROM t3
   WHERE typeof(b)='real'
     AND datetime(b) BETWEEN '2017-07-04' AND '2017-07-08';
} {/USING INDEX t3b/}
do_execsql_test date2-331 {
  SELECT a FROM t3
   WHERE typeof(b)='real'
     AND datetime(b) BETWEEN '2017-07-04' AND '2017-07-08'
  ORDER BY a;
} {3 4 5 6}

do_execsql_test date2-400 {
  CREATE TABLE t4(a INTEGER PRIMARY KEY,b);
  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<1000)
    INSERT INTO t4(a,b) SELECT x, julianday('2017-07-01')+x FROM c;
  UPDATE t4 SET b='now' WHERE a=500;
}
do_catchsql_test date2-410 {
  CREATE INDEX t4b1 ON t4(b)
    WHERE date(b) BETWEEN '2017-06-01' AND '2017-08-31';
} {1 {non-deterministic function in index expression or CHECK constraint}}
do_execsql_test date2-420 {
  DELETE FROM t4 WHERE a=500;
  CREATE INDEX t4b1 ON t4(b)
    WHERE date(b) BETWEEN '2017-06-01' AND '2017-08-31';
}
do_catchsql_test date2-430 {
  INSERT INTO t4(a,b) VALUES(9999,'now');
} {1 {non-deterministic function in index expression or CHECK constraint}}

do_execsql_test date2-500 {
  CREATE TABLE mods(x);
  INSERT INTO mods(x) VALUES
    ('+10 days'),
    ('-10 days'),
    ('+10 hours'),
    ('-10 hours'),
    ('+10 minutes'),
    ('-10 minutes'),
    ('+10 seconds'),
    ('-10 seconds'),
    ('+10 months'),
    ('-10 months'),
    ('+10 years'),
    ('-10 years'),
    ('start of month'),
    ('start of year'),
    ('start of day'),
    ('weekday 1'),
    ('unixepoch');
  CREATE TABLE t5(y,m);
  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
    INSERT INTO t5(y,m) SELECT julianday('2017-07-01')+c.x, mods.x FROM c, mods;
  CREATE INDEX t5x1 on t5(y) WHERE datetime(y,m) IS NOT NULL;
}
do_catchsql_test date2-510 {
  INSERT INTO t5(y,m) VALUES('2017-07-20','localtime');
} {1 {non-deterministic function in index expression or CHECK constraint}}
do_catchsql_test date2-520 {
  INSERT INTO t5(y,m) VALUES('2017-07-20','utc');
} {1 {non-deterministic function in index expression or CHECK constraint}}



  


finish_test