wasCSharpSQLite – Blame information for rev 7
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1 | office | 1 | # 2007 Febuary 24 |
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 | # This file implements regression tests for SQLite library. |
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12 | # |
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13 | # This file implements tests to verify that table column values |
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14 | # are pulled out of the database correctly. |
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15 | # |
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16 | # Long ago, the OP_Column opcode was sufficient to pull out the |
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17 | # value of a table column. But then we added the ALTER TABLE ADD COLUMN |
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18 | # feature. An added column might not actually exist in every row, |
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19 | # and so the OP_Column opcode has to contain a default value. Later |
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20 | # still we added a feature whereby a REAL value with no fractional |
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21 | # part is stored in the database file as an integer to save space. |
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22 | # After extracting the value, we have to call OP_RealAffinity to |
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23 | # convert it back to a REAL. |
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24 | # |
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25 | # The sqlite3ExprCodeGetColumn() routine was added to take care of |
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26 | # all of the complications above. The tests in this file attempt |
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27 | # to verify that sqlite3ExprCodeGetColumn() is used instead of a |
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28 | # raw OP_Column in all places where a table column is extracted from |
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29 | # the database. |
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30 | # |
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31 | # $Id: tkt2251.test,v 1.2 2007/09/12 17:01:45 danielk1977 Exp $ |
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32 | |||
33 | set testdir [file dirname $argv0] |
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34 | source $testdir/tester.tcl |
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35 | |||
36 | ifcapable !altertable { |
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37 | finish_test |
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38 | return |
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39 | } |
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40 | |||
41 | # Create sample data. Verify that the default value and type of an added |
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42 | # column is correct for aggregates. |
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43 | do_test tkt2251-1.1 { |
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44 | execsql { |
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45 | CREATE TABLE t1(a INTEGER); |
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46 | INSERT INTO t1 VALUES(1); |
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47 | INSERT INTO t1 VALUES(1); |
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48 | INSERT INTO t1 VALUES(2); |
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49 | INSERT INTO t1 VALUES(9); |
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50 | INSERT INTO t1 VALUES(9); |
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51 | INSERT INTO t1 VALUES(9); |
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52 | INSERT INTO t1 VALUES(3); |
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53 | INSERT INTO t1 VALUES(2); |
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54 | ALTER TABLE t1 ADD COLUMN b REAL DEFAULT 4.0; |
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55 | SELECT avg(b), typeof(avg(b)) FROM t1; |
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56 | } |
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57 | } {4.0 real} |
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58 | do_test tkt2251-1.2 { |
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59 | execsql { |
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60 | SELECT sum(b), typeof(sum(b)) FROM t1; |
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61 | } |
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62 | } {32.0 real} |
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63 | do_test tkt2251-1.3 { |
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64 | execsql { |
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65 | SELECT a, sum(b), typeof(sum(b)) FROM t1 GROUP BY a ORDER BY a; |
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66 | } |
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67 | } {1 8.0 real 2 8.0 real 3 4.0 real 9 12.0 real} |
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68 | |||
69 | # Make sure that the REAL value comes out when values are accessed |
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70 | # by index. |
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71 | # |
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72 | do_test tkt2251-2.1 { |
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73 | execsql { |
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74 | SELECT b, typeof(b) FROM t1 WHERE a=3; |
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75 | } |
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76 | } {4.0 real} |
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77 | do_test tkt2251-2.2 { |
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78 | execsql { |
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79 | CREATE INDEX t1i1 ON t1(a,b); |
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80 | SELECT b, typeof(b) FROM t1 WHERE a=3; |
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81 | } |
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82 | } {4.0 real} |
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83 | do_test tkt2251-2.3 { |
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84 | execsql { |
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85 | REINDEX; |
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86 | SELECT b, typeof(b) FROM t1 WHERE a=3; |
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87 | } |
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88 | } {4.0 real} |
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89 | |||
90 | # Make sure the correct REAL value is used when copying from one |
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91 | # table to another. |
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92 | # |
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93 | do_test tkt2251-3.1 { |
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94 | execsql { |
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95 | CREATE TABLE t2(x,y); |
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96 | INSERT INTO t2 SELECT * FROM t1; |
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97 | SELECT y, typeof(y) FROM t2 WHERE x=3; |
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98 | } |
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99 | } {4.0 real} |
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100 | do_test tkt2251-3.2 { |
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101 | execsql { |
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102 | CREATE TABLE t3 AS SELECT * FROM t1; |
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103 | SELECT b, typeof(b) FROM t3 WHERE a=3; |
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104 | } |
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105 | } {4.0 real} |
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106 | |||
107 | |||
108 | finish_test |