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Overview
Comment:Test cases added for using unary "+" and CAST operators on the RHS of range constraints and verifying that STAT3/4 can use those constraints.
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SHA1: 42505e5a810832442699ca54a46637c50e7f9e71
User & Date: drh 2014-08-25 20:21:07
Context
2014-08-25
21:11
Minor changes to the CAST logic to make it more testable. check-in: 1ad70ec5 user: drh tags: trunk
20:21
Test cases added for using unary "+" and CAST operators on the RHS of range constraints and verifying that STAT3/4 can use those constraints. check-in: 42505e5a user: drh tags: trunk
20:11
Allow CAST expressions and unary "+" operators to be used in the DEFAULT argument of an ALTER TABLE ADD COLUMN and to be understand on the RHS of range constraints interpreted by STAT3/4. This involves a rewrite of the implementation of the CAST operator. check-in: 91d8a8d0 user: drh tags: trunk
Changes
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Changes to test/analyzeA.test.

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foreach {tn analyze_cmd} {
  1 populate_stat4 
  2 populate_stat3
  3 populate_both
} {
  reset_db
  do_test 1.$tn.1 {
    execsql { CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c) }
    for {set i 0} {$i < 100} {incr i} {
      set c [expr int(pow(1.1,$i)/100)]
      set b [expr 125 - int(pow(1.1,99-$i))/100]
      execsql {INSERT INTO t1 VALUES($i, $b, $c)}
    }
  } {}

................................................................................
  do_eqp_test 1.$tn.3.5 {
    SELECT * FROM t1 WHERE b BETWEEN 0 AND 50 AND c BETWEEN 0 AND 50
  } {0 0 0 {SEARCH TABLE t1 USING INDEX t1b (b>? AND b<?)}}

  do_eqp_test 1.$tn.3.6 {
    SELECT * FROM t1 WHERE b BETWEEN 75 AND 125 AND c BETWEEN 75 AND 125
  } {0 0 0 {SEARCH TABLE t1 USING INDEX t1c (c>? AND c<?)}}




















}

finish_test








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foreach {tn analyze_cmd} {
  1 populate_stat4 
  2 populate_stat3
  3 populate_both
} {
  reset_db
  do_test 1.$tn.1 {
    execsql { CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT, c INT) }
    for {set i 0} {$i < 100} {incr i} {
      set c [expr int(pow(1.1,$i)/100)]
      set b [expr 125 - int(pow(1.1,99-$i))/100]
      execsql {INSERT INTO t1 VALUES($i, $b, $c)}
    }
  } {}

................................................................................
  do_eqp_test 1.$tn.3.5 {
    SELECT * FROM t1 WHERE b BETWEEN 0 AND 50 AND c BETWEEN 0 AND 50
  } {0 0 0 {SEARCH TABLE t1 USING INDEX t1b (b>? AND b<?)}}

  do_eqp_test 1.$tn.3.6 {
    SELECT * FROM t1 WHERE b BETWEEN 75 AND 125 AND c BETWEEN 75 AND 125
  } {0 0 0 {SEARCH TABLE t1 USING INDEX t1c (c>? AND c<?)}}

  do_eqp_test 1.$tn.3.7 {
    SELECT * FROM t1 WHERE b BETWEEN +0 AND +50 AND c BETWEEN +0 AND +50
  } {0 0 0 {SEARCH TABLE t1 USING INDEX t1b (b>? AND b<?)}}

  do_eqp_test 1.$tn.3.8 {
    SELECT * FROM t1
     WHERE b BETWEEN cast('0' AS int) AND cast('50.0' AS real)
       AND c BETWEEN cast('0' AS numeric) AND cast('50.0' AS real)
  } {0 0 0 {SEARCH TABLE t1 USING INDEX t1b (b>? AND b<?)}}

  do_eqp_test 1.$tn.3.9 {
    SELECT * FROM t1 WHERE b BETWEEN +75 AND +125 AND c BETWEEN +75 AND +125
  } {0 0 0 {SEARCH TABLE t1 USING INDEX t1c (c>? AND c<?)}}

  do_eqp_test 1.$tn.3.10 {
    SELECT * FROM t1
     WHERE b BETWEEN cast('75' AS int) AND cast('125.0' AS real)
       AND c BETWEEN cast('75' AS numeric) AND cast('125.0' AS real)
  } {0 0 0 {SEARCH TABLE t1 USING INDEX t1c (c>? AND c<?)}}
}

finish_test