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1 # 2008 August 26 |
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2 # |
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3 # The author disclaims copyright to this source code. In place of |
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4 # a legal notice, here is a blessing: |
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5 # |
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6 # May you do good and not evil. |
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7 # May you find forgiveness for yourself and forgive others. |
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8 # May you share freely, never taking more than you give. |
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9 # |
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10 #*********************************************************************** |
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11 # |
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12 # This file implements regression tests for SQLite library. |
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13 # Specifically, it tests that bug #3334 has been fixed by the |
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14 # addition of restriction (19) to the subquery flattener optimization. |
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15 # |
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16 # $Id: tkt3334.test,v 1.1 2008/08/26 12:56:14 drh Exp $ |
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17 |
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18 |
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19 set testdir [file dirname $argv0] |
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20 source $testdir/tester.tcl |
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21 |
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22 do_test tkt3334-1.0 { |
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23 execsql { |
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24 CREATE TABLE t1(a,b); |
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25 INSERT INTO t1 VALUES(1,934); |
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26 INSERT INTO t1 VALUES(2,221); |
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27 INSERT INTO t1 VALUES(1,372); |
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28 INSERT INTO t1 VALUES(3,552); |
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29 INSERT INTO t1 VALUES(1,719); |
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30 INSERT INTO t1 VALUES(4,102); |
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31 SELECT * FROM t1 ORDER BY b; |
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32 } |
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33 } {4 102 2 221 1 372 3 552 1 719 1 934} |
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34 |
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35 do_test tkt3334-1.1 { |
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36 execsql { |
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37 SELECT a FROM (SELECT a FROM t1 ORDER BY b LIMIT 2) WHERE a=1; |
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38 } |
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39 } {} |
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40 do_test tkt3334-1.2 { |
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41 execsql { |
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42 SELECT count(*) FROM (SELECT a FROM t1 ORDER BY b LIMIT 2) WHERE a=1; |
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43 } |
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44 } {0} |
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45 do_test tkt3334-1.3 { |
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46 execsql { |
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47 SELECT a FROM (SELECT a FROM t1 ORDER BY b LIMIT 3) WHERE a=1; |
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48 } |
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49 } {1} |
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50 do_test tkt3334-1.4 { |
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51 execsql { |
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52 SELECT count(*) FROM (SELECT a FROM t1 ORDER BY b LIMIT 3) WHERE a=1; |
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53 } |
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54 } {1} |
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55 do_test tkt3334-1.5 { |
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56 execsql { |
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57 SELECT a FROM (SELECT a FROM t1 ORDER BY b LIMIT 99) WHERE a=1; |
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58 } |
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59 } {1 1 1} |
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60 do_test tkt3334-1.6 { |
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61 execsql { |
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62 SELECT count(*) FROM (SELECT a FROM t1 ORDER BY b LIMIT 99) WHERE a=1; |
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63 } |
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64 } {3} |
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65 do_test tkt3334-1.7 { |
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66 execsql { |
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67 SELECT a FROM (SELECT a FROM t1 ORDER BY b) WHERE a=1; |
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68 } |
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69 } {1 1 1} |
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70 do_test tkt3334-1.8 { |
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71 execsql { |
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72 SELECT count(*) FROM (SELECT a FROM t1 ORDER BY b) WHERE a=1; |
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73 } |
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74 } {3} |
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75 do_test tkt3334-1.9 { |
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76 execsql { |
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77 SELECT a FROM (SELECT a FROM t1) WHERE a=1; |
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78 } |
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79 } {1 1 1} |
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80 do_test tkt3334-1.10 { |
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81 execsql { |
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82 SELECT count(*) FROM (SELECT a FROM t1) WHERE a=1; |
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83 } |
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84 } {3} |