1 # 2010 November 30 2 # 3 # The author disclaims copyright to this source code. In place of 4 # a legal notice, here is a blessing: 5 # 6 # May you do good and not evil. 7 # May you find forgiveness for yourself and forgive others. 8 # May you share freely, never taking more than you give. 9 # 10 #*********************************************************************** 11 # 12 # This file implements tests to verify that the "testable statements" in 13 # the lang_naming.html document are correct. 14 # 15 16 set testdir [file dirname $argv0] 17 source $testdir/tester.tcl 18 set ::testprefix e_resolve 19 20 # An example database schema for testing name resolution: 21 # 22 set schema { 23 ATTACH 'test.db2' AS at1; 24 ATTACH 'test.db3' AS at2; 25 26 CREATE TABLE temp.n1(x, y); INSERT INTO temp.n1 VALUES('temp', 'n1'); 27 CREATE TRIGGER temp.n3 AFTER INSERT ON n1 BEGIN SELECT 1; END; 28 CREATE INDEX temp.n4 ON n1(x, y); 29 30 CREATE TABLE main.n1(x, y); INSERT INTO main.n1 VALUES('main', 'n1'); 31 CREATE TABLE main.n2(x, y); INSERT INTO main.n2 VALUES('main', 'n2'); 32 CREATE INDEX main.n3 ON n2(y, x); 33 CREATE TRIGGER main.n4 BEFORE INSERT ON n2 BEGIN SELECT 1; END; 34 35 CREATE TABLE at1.n1(x, y); INSERT INTO at1.n1 VALUES('at1', 'n1'); 36 CREATE TABLE at1.n2(x, y); INSERT INTO at1.n2 VALUES('at1', 'n2'); 37 CREATE TABLE at1.n3(x, y); INSERT INTO at1.n3 VALUES('at1', 'n3'); 38 39 CREATE TABLE at2.n1(x, y); INSERT INTO at2.n1 VALUES('at2', 'n1'); 40 CREATE TABLE at2.n2(x, y); INSERT INTO at2.n2 VALUES('at2', 'n2'); 41 CREATE TABLE at2.n3(x, y); INSERT INTO at2.n3 VALUES('at2', 'n3'); 42 CREATE TABLE at2.n4(x, y); INSERT INTO at2.n4 VALUES('at2', 'n4'); 43 CREATE TRIGGER at2.n4 BEFORE INSERT ON n4 BEGIN SELECT 1; END; 44 } 45 46 proc resolve_reopen_db {} { 47 db close 48 forcedelete test.db test.db2 test.db3 49 sqlite3 db test.db 50 db eval $::schema 51 } 52 53 54 55 # EVIDENCE-OF: R-33528-20612 If no database is specified as part of the 56 # object reference, then SQLite searches the main, temp and all attached 57 # databases for an object with a matching name. The temp database is 58 # searched first, followed by the main database, followed all attached 59 # databases in the order that they were attached. The reference resolves 60 # to the first match found. 61 # 62 resolve_reopen_db 63 do_execsql_test 1.1 { SELECT * FROM n1 } {temp n1} 64 do_execsql_test 1.2 { SELECT * FROM n2 } {main n2} 65 do_execsql_test 1.3 { SELECT * FROM n3 } {at1 n3} 66 do_execsql_test 1.4 { SELECT * FROM n4 } {at2 n4} 67 68 # EVIDENCE-OF: R-54577-28142 If a database name is specified as part of 69 # an object reference, it must be either "main", or "temp" or the name 70 # of an attached database. 71 # 72 # Or else it is a "no such table: xxx" error. 73 # 74 resolve_reopen_db 75 do_execsql_test 2.1.1 { SELECT * FROM main.n1 } {main n1} 76 do_execsql_test 2.1.2 { SELECT * FROM temp.n1 } {temp n1} 77 do_execsql_test 2.1.3 { SELECT * FROM at1.n1 } {at1 n1} 78 do_execsql_test 2.1.4 { SELECT * FROM at2.n1 } {at2 n1} 79 80 do_catchsql_test 2.2 { SELECT * FROM xxx.n1 } {1 {no such table: xxx.n1}} 81 82 # EVIDENCE-OF: R-26223-47623 Like other SQL identifiers, database names 83 # are case-insensitive. 84 # 85 resolve_reopen_db 86 do_execsql_test 3.1 { SELECT * FROM MAIN.n1 } {main n1} 87 do_execsql_test 3.2 { SELECT * FROM tEmP.n1 } {temp n1} 88 do_execsql_test 3.3 { SELECT * FROM aT1.n1 } {at1 n1} 89 do_execsql_test 3.4 { SELECT * FROM At2.n1 } {at2 n1} 90 91 # EVIDENCE-OF: R-15639-28392 If a database name is specified, then only 92 # the named database is searched for the named object. 93 # 94 do_catchsql_test 4.1 { SELECT * FROM temp.n2 } {1 {no such table: temp.n2}} 95 do_catchsql_test 4.2 { SELECT * FROM main.n2 } {0 {main n2}} 96 do_catchsql_test 4.3 { SELECT * FROM at1.n2 } {0 {at1 n2}} 97 do_catchsql_test 4.4 { SELECT * FROM at2.n2 } {0 {at2 n2}} 98 99 # EVIDENCE-OF: R-08951-19801 When searching database schemas for a named 100 # object, objects of types that cannot be used in the context of the 101 # reference are always ignored. 102 # 103 # In this case, "types that cannot be used" are triggers and indexes. 104 # The temp and main databases both contain triggers and indexes named 105 # "n3" and "n4". Database "at2" contains a trigger called "n4". And yet: 106 # 107 do_execsql_test 5.1 { SELECT * FROM n3 } {at1 n3} 108 do_execsql_test 5.2 { SELECT * FROM n4 } {at2 n4} 109 110 #------------------------------------------------------------------------- 111 # EVIDENCE-OF: R-37286-42536 112 # 113 db close 114 forcedelete test.db file.db 115 sqlite3 db test.db 116 do_execsql_test 6.1 { 117 ATTACH 'file.db' AS aux; 118 CREATE TABLE t1(x, y); 119 CREATE TEMP TABLE t1(x, y); 120 CREATE TABLE aux.t1(x, y); 121 } 122 123 do_execsql_test 6.2.0 { DROP TABLE t1 } 124 do_catchsql_test 6.2.1 { SELECT * FROM temp.t1 } {1 {no such table: temp.t1}} 125 do_catchsql_test 6.2.2 { SELECT * FROM main.t1 } {0 {}} 126 do_catchsql_test 6.2.3 { SELECT * FROM aux.t1 } {0 {}} 127 128 do_execsql_test 6.3.0 { DROP TABLE t1 } 129 do_catchsql_test 6.3.1 { SELECT * FROM main.t1 } {1 {no such table: main.t1}} 130 do_catchsql_test 6.3.3 { SELECT * FROM aux.t1 } {0 {}} 131 132 do_execsql_test 6.4.0 { DROP TABLE t1 } 133 do_catchsql_test 6.4.1 { SELECT * FROM aux.t1 } {1 {no such table: aux.t1}} 134 135 finish_test 136
