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Overview
Comment:Fix test cases to align with the improved stats computation.
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | analyze-worst-case
Files: files | file ages | folders
SHA1: 810967bff6ba262f38a2833e2d4efef4ef00f463
User & Date: drh 2016-03-01 12:45:08.294
Context
2016-03-01
14:31
Change the estimated row counts in stat1 to be one-third worst-case and two-threads average case. (check-in: 21bfd47c42 user: drh tags: analyze-worst-case)
12:45
Fix test cases to align with the improved stats computation. (check-in: 810967bff6 user: drh tags: analyze-worst-case)
2016-02-29
23:02
Improvements to the logic for adding the "noskipscan" flag to stat1 entries. (check-in: 421b5b544a user: drh tags: analyze-worst-case)
Changes
Unified Diff Ignore Whitespace Patch
Changes to test/analyze.test.
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} {t1i1 {4 4} t1i2 {4 1} t1i3 {4 4 1}}
do_test analyze-3.3 {
  execsql {
    INSERT INTO t1 VALUES(2,5);
    ANALYZE main;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1}}
do_test analyze-3.4 {
  execsql {
    CREATE TABLE t2 AS SELECT * FROM t1;
    CREATE INDEX t2i1 ON t2(a);
    CREATE INDEX t2i2 ON t2(b);
    CREATE INDEX t2i3 ON t2(a,b);
    ANALYZE;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1} t2i1 {5 3} t2i2 {5 2} t2i3 {5 3 1}}
do_test analyze-3.5 {
  execsql {
    DROP INDEX t2i3;
    ANALYZE t1;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1} t2i1 {5 3} t2i2 {5 2}}
do_test analyze-3.6 {
  execsql {
    ANALYZE t2;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1} t2i1 {5 3} t2i2 {5 2}}
do_test analyze-3.7 {
  execsql {
    DROP INDEX t2i2;
    ANALYZE t2;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1} t2i1 {5 3}}
do_test analyze-3.8 {
  execsql {
    CREATE TABLE t3 AS SELECT a, b, rowid AS c, 'hi' AS d FROM t1;
    CREATE INDEX t3i1 ON t3(a);
    CREATE INDEX t3i2 ON t3(a,b,c,d);
    CREATE INDEX t3i3 ON t3(d,b,c,a);
    DROP TABLE t1;
    DROP TABLE t2;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {}
do_test analyze-3.9 {
  execsql {
    ANALYZE;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1}}

do_test analyze-3.10 {
  execsql {
    CREATE TABLE [silly " name](a, b, c);
    CREATE INDEX 'foolish '' name' ON [silly " name](a, b);
    CREATE INDEX 'another foolish '' name' ON [silly " name](c);
    INSERT INTO [silly " name] VALUES(1, 2, 3);
    INSERT INTO [silly " name] VALUES(4, 5, 6);
    ANALYZE;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {{another foolish ' name} {2 1} {foolish ' name} {2 1 1} t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1}}
do_test analyze-3.11 {
  execsql {
    DROP INDEX "foolish ' name";
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {{another foolish ' name} {2 1} t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1}}
do_test analyze-3.11 {
  execsql {
    DROP TABLE "silly "" name";
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1}}

# Try corrupting the sqlite_stat1 table and make sure the
# database is still able to function.
#
do_test analyze-4.0 {
  sqlite3 db2 test.db
  db2 eval {
    CREATE TABLE t4(x,y,z);
    CREATE INDEX t4i1 ON t4(x);
    CREATE INDEX t4i2 ON t4(y);
    INSERT INTO t4 SELECT a,b,c FROM t3;
  }
  db2 close
  db close
  sqlite3 db test.db
  execsql {
    ANALYZE;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1} t4i1 {5 3} t4i2 {5 2}}
do_test analyze-4.1 {
  execsql {
    PRAGMA writable_schema=on;
    INSERT INTO sqlite_stat1 VALUES(null,null,null);
    PRAGMA writable_schema=off;
  }
  db close








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} {t1i1 {4 4} t1i2 {4 1} t1i3 {4 4 1}}
do_test analyze-3.3 {
  execsql {
    INSERT INTO t1 VALUES(2,5);
    ANALYZE main;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {t1i1 {5 4} t1i2 {5 2} t1i3 {5 4 1}}
do_test analyze-3.4 {
  execsql {
    CREATE TABLE t2 AS SELECT * FROM t1;
    CREATE INDEX t2i1 ON t2(a);
    CREATE INDEX t2i2 ON t2(b);
    CREATE INDEX t2i3 ON t2(a,b);
    ANALYZE;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {t1i1 {5 4} t1i2 {5 2} t1i3 {5 4 1} t2i1 {5 4} t2i2 {5 2} t2i3 {5 4 1}}
do_test analyze-3.5 {
  execsql {
    DROP INDEX t2i3;
    ANALYZE t1;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {t1i1 {5 4} t1i2 {5 2} t1i3 {5 4 1} t2i1 {5 4} t2i2 {5 2}}
do_test analyze-3.6 {
  execsql {
    ANALYZE t2;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {t1i1 {5 4} t1i2 {5 2} t1i3 {5 4 1} t2i1 {5 4} t2i2 {5 2}}
do_test analyze-3.7 {
  execsql {
    DROP INDEX t2i2;
    ANALYZE t2;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {t1i1 {5 4} t1i2 {5 2} t1i3 {5 4 1} t2i1 {5 4}}
do_test analyze-3.8 {
  execsql {
    CREATE TABLE t3 AS SELECT a, b, rowid AS c, 'hi' AS d FROM t1;
    CREATE INDEX t3i1 ON t3(a);
    CREATE INDEX t3i2 ON t3(a,b,c,d);
    CREATE INDEX t3i3 ON t3(d,b,c,a);
    DROP TABLE t1;
    DROP TABLE t2;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {}
do_test analyze-3.9 {
  execsql {
    ANALYZE;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {t3i1 {5 4} t3i2 {5 4 1 1 1} t3i3 {5 5 2 1 1}}

do_test analyze-3.10 {
  execsql {
    CREATE TABLE [silly " name](a, b, c);
    CREATE INDEX 'foolish '' name' ON [silly " name](a, b);
    CREATE INDEX 'another foolish '' name' ON [silly " name](c);
    INSERT INTO [silly " name] VALUES(1, 2, 3);
    INSERT INTO [silly " name] VALUES(4, 5, 6);
    ANALYZE;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {{another foolish ' name} {2 1} {foolish ' name} {2 1 1} t3i1 {5 4} t3i2 {5 4 1 1 1} t3i3 {5 5 2 1 1}}
do_test analyze-3.11 {
  execsql {
    DROP INDEX "foolish ' name";
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {{another foolish ' name} {2 1} t3i1 {5 4} t3i2 {5 4 1 1 1} t3i3 {5 5 2 1 1}}
do_test analyze-3.11 {
  execsql {
    DROP TABLE "silly "" name";
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {t3i1 {5 4} t3i2 {5 4 1 1 1} t3i3 {5 5 2 1 1}}

# Try corrupting the sqlite_stat1 table and make sure the
# database is still able to function.
#
do_test analyze-4.0 {
  sqlite3 db2 test.db
  db2 eval {
    CREATE TABLE t4(x,y,z);
    CREATE INDEX t4i1 ON t4(x);
    CREATE INDEX t4i2 ON t4(y);
    INSERT INTO t4 SELECT a,b,c FROM t3;
  }
  db2 close
  db close
  sqlite3 db test.db
  execsql {
    ANALYZE;
    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
  }
} {t3i1 {5 4} t3i2 {5 4 1 1 1} t3i3 {5 5 2 1 1} t4i1 {5 4} t4i2 {5 2}}
do_test analyze-4.1 {
  execsql {
    PRAGMA writable_schema=on;
    INSERT INTO sqlite_stat1 VALUES(null,null,null);
    PRAGMA writable_schema=off;
  }
  db close
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