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+# 2009 August 13
+#
+# 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 regression tests for SQLite library. The
+# focus of this file is testing WHERE clause conditions with
+# subtle affinity issues.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# For this set of tests:
+#
+#  *   t1.y holds an integer value with affinity NONE
+#  *   t2.b holds a text value with affinity TEXT
+#
+# These values are not equal and because neither affinity is NUMERIC
+# no type conversion occurs.
+#
+do_test whereB-1.1 {
+  db eval {
+    CREATE TABLE t1(x,y);    -- affinity of t1.y is NONE
+    INSERT INTO t1 VALUES(1,99);
+
+    CREATE TABLE t2(a, b TEXT);  -- affinity of t2.b is TEXT
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,99);
+
+    SELECT x, a, y=b FROM t1, t2 ORDER BY +x, +a;
+  }
+} {1 2 0}
+do_test whereB-1.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {}
+do_test whereB-1.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {}
+do_test whereB-1.4 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-1.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {}
+do_test whereB-1.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {}
+do_test whereB-1.102 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+# For this set of tests:
+#
+#  *   t1.y holds a text value with affinity TEXT
+#  *   t2.b holds an integer value with affinity NONE
+#
+# These values are not equal and because neither affinity is NUMERIC
+# no type conversion occurs.
+#
+do_test whereB-2.1 {
+  db eval {
+    DROP TABLE t1;
+    DROP TABLE t2;
+
+    CREATE TABLE t1(x, y TEXT);    -- affinity of t1.y is TEXT
+    INSERT INTO t1 VALUES(1,99);
+
+    CREATE TABLE t2(a, b BLOB);  -- affinity of t2.b is NONE
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,99);
+
+    SELECT x, a, y=b FROM t1, t2 ORDER BY +x, +a;
+  }
+} {1 2 0}
+do_test whereB-2.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {}
+do_test whereB-2.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {}
+do_test whereB-2.4 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-2.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {}
+do_test whereB-2.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {}
+do_test whereB-2.102 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+# For this set of tests:
+#
+#  *   t1.y holds a text value with affinity NONE
+#  *   t2.b holds an integer value with affinity NONE
+#
+# These values are not equal and because neither affinity is NUMERIC
+# no type conversion occurs.
+#
+do_test whereB-3.1 {
+  db eval {
+    DROP TABLE t1;
+    DROP TABLE t2;
+
+    CREATE TABLE t1(x, y BLOB);    -- affinity of t1.y is NONE
+    INSERT INTO t1 VALUES(1,99);
+
+    CREATE TABLE t2(a, b BLOB);  -- affinity of t2.b is NONE
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,'99');
+
+    SELECT x, a, y=b FROM t1, t2;
+  }
+} {1 2 0}
+do_test whereB-3.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {}
+do_test whereB-3.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {}
+do_test whereB-3.4 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-3.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {}
+do_test whereB-3.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {}
+do_test whereB-3.102 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+
+# For this set of tests:
+#
+#  *   t1.y holds a text value with affinity NONE
+#  *   t2.b holds an integer value with affinity NUMERIC
+#
+# Because t2.b has a numeric affinity, type conversion should occur
+# and the two fields should be equal.
+#
+do_test whereB-4.1 {
+  db eval {
+    DROP TABLE t1;
+    DROP TABLE t2;
+
+    CREATE TABLE t1(x, y BLOB);    -- affinity of t1.y is NONE
+    INSERT INTO t1 VALUES(1,'99');
+
+    CREATE TABLE t2(a, b NUMERIC);  -- affinity of t2.b is NUMERIC
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,99);
+
+    SELECT x, a, y=b FROM t1, t2;
+  }
+} {1 2 1}
+do_test whereB-4.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-4.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-4.4 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-4.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-4.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-4.102 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+
+
+# For this set of tests:
+#
+#  *   t1.y holds a text value with affinity NONE
+#  *   t2.b holds an integer value with affinity INTEGER
+#
+# Because t2.b has a numeric affinity, type conversion should occur
+# and the two fields should be equal.
+#
+do_test whereB-5.1 {
+  db eval {
+    DROP TABLE t1;
+    DROP TABLE t2;
+
+    CREATE TABLE t1(x, y BLOB);    -- affinity of t1.y is NONE
+    INSERT INTO t1 VALUES(1,'99');
+
+    CREATE TABLE t2(a, b INT);  -- affinity of t2.b is INTEGER
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,99);
+
+    SELECT x, a, y=b FROM t1, t2;
+  }
+} {1 2 1}
+do_test whereB-5.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-5.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-5.4 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-5.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-5.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-5.102 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+
+# For this set of tests:
+#
+#  *   t1.y holds a text value with affinity NONE
+#  *   t2.b holds an integer value with affinity REAL
+#
+# Because t2.b has a numeric affinity, type conversion should occur
+# and the two fields should be equal.
+#
+do_test whereB-6.1 {
+  db eval {
+    DROP TABLE t1;
+    DROP TABLE t2;
+
+    CREATE TABLE t1(x, y BLOB);    -- affinity of t1.y is NONE
+    INSERT INTO t1 VALUES(1,'99');
+
+    CREATE TABLE t2(a, b REAL);  -- affinity of t2.b is REAL
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,99.0);
+
+    SELECT x, a, y=b FROM t1, t2;
+  }
+} {1 2 1}
+do_test whereB-6.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-6.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-6.4 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-6.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-6.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-6.102 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+
+# For this set of tests:
+#
+#  *   t1.y holds an integer value with affinity NUMERIC
+#  *   t2.b holds a text value with affinity NONE
+#
+# Because t1.y has a numeric affinity, type conversion should occur
+# and the two fields should be equal.
+#
+do_test whereB-7.1 {
+  db eval {
+    DROP TABLE t1;
+    DROP TABLE t2;
+
+    CREATE TABLE t1(x, y NUMERIC);  -- affinity of t1.y is NUMERIC
+    INSERT INTO t1 VALUES(1,99);
+
+    CREATE TABLE t2(a, b BLOB);  -- affinity of t2.b is NONE
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,'99');
+
+    SELECT x, a, y=b FROM t1, t2;
+  }
+} {1 2 1}
+do_test whereB-7.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-7.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-7.4 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-7.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-7.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-7.102 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+# For this set of tests:
+#
+#  *   t1.y holds an integer value with affinity INTEGER
+#  *   t2.b holds a text value with affinity NONE
+#
+# Because t1.y has a numeric affinity, type conversion should occur
+# and the two fields should be equal.
+#
+do_test whereB-8.1 {
+  db eval {
+    DROP TABLE t1;
+    DROP TABLE t2;
+
+    CREATE TABLE t1(x, y INT);  -- affinity of t1.y is INTEGER
+    INSERT INTO t1 VALUES(1,99);
+
+    CREATE TABLE t2(a, b BLOB);  -- affinity of t2.b is NONE
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,'99');
+
+    SELECT x, a, y=b FROM t1, t2;
+  }
+} {1 2 1}
+do_test whereB-8.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-8.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-8.4 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-8.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-8.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-8.102 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+# For this set of tests:
+#
+#  *   t1.y holds an integer value with affinity REAL
+#  *   t2.b holds a text value with affinity NONE
+#
+# Because t1.y has a numeric affinity, type conversion should occur
+# and the two fields should be equal.
+#
+do_test whereB-9.1 {
+  db eval {
+    DROP TABLE t1;
+    DROP TABLE t2;
+
+    CREATE TABLE t1(x, y REAL);  -- affinity of t1.y is REAL
+    INSERT INTO t1 VALUES(1,99.0);
+
+    CREATE TABLE t2(a, b BLOB);  -- affinity of t2.b is NONE
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,'99');
+
+    SELECT x, a, y=b FROM t1, t2;
+  }
+} {1 2 1}
+do_test whereB-9.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-9.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-9.4 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-9.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-9.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-9.102 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+
+
+
+finish_test