# 2010 November 30 # # The author disclaims copyright to this source code. In place of # a legal notice, here is a blessing: # # May you do good and not evil. # May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #*********************************************************************** # # This file implements tests to verify that the "testable statements" in # the lang_naming.html document are correct. # set testdir [file dirname $argv0] source $testdir/tester.tcl set ::testprefix e_resolve # An example database schema for testing name resolution: # set schema { ATTACH 'test.db2' AS at1; ATTACH 'test.db3' AS at2; CREATE TABLE temp.n1(x, y); INSERT INTO temp.n1 VALUES('temp', 'n1'); CREATE TRIGGER temp.n3 AFTER INSERT ON n1 BEGIN SELECT 1; END; CREATE INDEX temp.n4 ON n1(x, y); CREATE TABLE main.n1(x, y); INSERT INTO main.n1 VALUES('main', 'n1'); CREATE TABLE main.n2(x, y); INSERT INTO main.n2 VALUES('main', 'n2'); CREATE INDEX main.n3 ON n2(y, x); CREATE TRIGGER main.n4 BEFORE INSERT ON n2 BEGIN SELECT 1; END; CREATE TABLE at1.n1(x, y); INSERT INTO at1.n1 VALUES('at1', 'n1'); CREATE TABLE at1.n2(x, y); INSERT INTO at1.n2 VALUES('at1', 'n2'); CREATE TABLE at1.n3(x, y); INSERT INTO at1.n3 VALUES('at1', 'n3'); CREATE TABLE at2.n1(x, y); INSERT INTO at2.n1 VALUES('at2', 'n1'); CREATE TABLE at2.n2(x, y); INSERT INTO at2.n2 VALUES('at2', 'n2'); CREATE TABLE at2.n3(x, y); INSERT INTO at2.n3 VALUES('at2', 'n3'); CREATE TABLE at2.n4(x, y); INSERT INTO at2.n4 VALUES('at2', 'n4'); CREATE TRIGGER at2.n4 BEFORE INSERT ON n4 BEGIN SELECT 1; END; } proc resolve_reopen_db {} { db close forcedelete test.db test.db2 test.db3 sqlite3 db test.db db eval $::schema } # EVIDENCE-OF: R-33528-20612 If no database is specified as part of the # object reference, then SQLite searches the main, temp and all attached # databases for an object with a matching name. The temp database is # searched first, followed by the main database, followed all attached # databases in the order that they were attached. The reference resolves # to the first match found. # resolve_reopen_db do_execsql_test 1.1 { SELECT * FROM n1 } {temp n1} do_execsql_test 1.2 { SELECT * FROM n2 } {main n2} do_execsql_test 1.3 { SELECT * FROM n3 } {at1 n3} do_execsql_test 1.4 { SELECT * FROM n4 } {at2 n4} # EVIDENCE-OF: R-54577-28142 If a database name is specified as part of # an object reference, it must be either "main", or "temp" or the name # of an attached database. # # Or else it is a "no such table: xxx" error. # resolve_reopen_db do_execsql_test 2.1.1 { SELECT * FROM main.n1 } {main n1} do_execsql_test 2.1.2 { SELECT * FROM temp.n1 } {temp n1} do_execsql_test 2.1.3 { SELECT * FROM at1.n1 } {at1 n1} do_execsql_test 2.1.4 { SELECT * FROM at2.n1 } {at2 n1} do_catchsql_test 2.2 { SELECT * FROM xxx.n1 } {1 {no such table: xxx.n1}} # EVIDENCE-OF: R-26223-47623 Like other SQL identifiers, database names # are case-insensitive. # resolve_reopen_db do_execsql_test 3.1 { SELECT * FROM MAIN.n1 } {main n1} do_execsql_test 3.2 { SELECT * FROM tEmP.n1 } {temp n1} do_execsql_test 3.3 { SELECT * FROM aT1.n1 } {at1 n1} do_execsql_test 3.4 { SELECT * FROM At2.n1 } {at2 n1} # EVIDENCE-OF: R-15639-28392 If a database name is specified, then only # the named database is searched for the named object. # do_catchsql_test 4.1 { SELECT * FROM temp.n2 } {1 {no such table: temp.n2}} do_catchsql_test 4.2 { SELECT * FROM main.n2 } {0 {main n2}} do_catchsql_test 4.3 { SELECT * FROM at1.n2 } {0 {at1 n2}} do_catchsql_test 4.4 { SELECT * FROM at2.n2 } {0 {at2 n2}} # EVIDENCE-OF: R-08951-19801 When searching database schemas for a named # object, objects of types that cannot be used in the context of the # reference are always ignored. # # In this case, "types that cannot be used" are triggers and indexes. # The temp and main databases both contain triggers and indexes named # "n3" and "n4". Database "at2" contains a trigger called "n4". And yet: # do_execsql_test 5.1 { SELECT * FROM n3 } {at1 n3} do_execsql_test 5.2 { SELECT * FROM n4 } {at2 n4} #------------------------------------------------------------------------- # EVIDENCE-OF: R-37286-42536 # db close forcedelete test.db file.db sqlite3 db test.db do_execsql_test 6.1 { ATTACH 'file.db' AS aux; CREATE TABLE t1(x, y); CREATE TEMP TABLE t1(x, y); CREATE TABLE aux.t1(x, y); } do_execsql_test 6.2.0 { DROP TABLE t1 } do_catchsql_test 6.2.1 { SELECT * FROM temp.t1 } {1 {no such table: temp.t1}} do_catchsql_test 6.2.2 { SELECT * FROM main.t1 } {0 {}} do_catchsql_test 6.2.3 { SELECT * FROM aux.t1 } {0 {}} do_execsql_test 6.3.0 { DROP TABLE t1 } do_catchsql_test 6.3.1 { SELECT * FROM main.t1 } {1 {no such table: main.t1}} do_catchsql_test 6.3.3 { SELECT * FROM aux.t1 } {0 {}} do_execsql_test 6.4.0 { DROP TABLE t1 } do_catchsql_test 6.4.1 { SELECT * FROM aux.t1 } {1 {no such table: aux.t1}} finish_test