SQLite

Check-in [db5266de]
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:In sqlite3WhereBegin, do not proceed with coding the loop if an error is detected as part of WHERE expression analysis. For for the assertion-fault described by forum post c3496cf6b1.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA3-256: db5266dec601a9513bc8dd09a9f8bb4aef55b780d22610946099e8edd4836587
User & Date: dan 2022-06-24 11:05:36
Original Comment: In sqlite3WhereBegin, do not proceed with coding the loop if an error is detected as part of WHERE expression analysis.
Context
2022-06-24
12:56
Fix a harmless UBSAN warning associated with PRAGMA schema_version found by OSSFuzz. (check-in: e93fd170 user: drh tags: trunk)
11:05
In sqlite3WhereBegin, do not proceed with coding the loop if an error is detected as part of WHERE expression analysis. For for the assertion-fault described by forum post c3496cf6b1. (check-in: db5266de user: dan tags: trunk)
11:02
A minor fix to test/fuzzinvariants.c so that it works even with column names that originally contain a ':' and that are disambiguated. (check-in: 8d9b1fff user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/where.c.
︙︙
5588
5589
5590
5591
5592
5593
5594
5595
5596
5597
5598
5599
5600
5601
5602

    }
  #endif
  }
  
  /* Analyze all of the subexpressions. */
  sqlite3WhereExprAnalyze(pTabList, &pWInfo->sWC);
  sqlite3WhereAddLimit(&pWInfo->sWC, pLimit);
  if( db->mallocFailed ) goto whereBeginError;

  /* Special case: WHERE terms that do not refer to any tables in the join
  ** (constant expressions). Evaluate each such term, and jump over all the
  ** generated code if the result is not true.  
  **
  ** Do not do this if the expression contains non-deterministic functions
  ** that are not within a sub-select. This is not strictly required, but








|








5588
5589
5590
5591
5592
5593
5594
5595
5596
5597
5598
5599
5600
5601
5602

    }
  #endif
  }
  
  /* Analyze all of the subexpressions. */
  sqlite3WhereExprAnalyze(pTabList, &pWInfo->sWC);
  sqlite3WhereAddLimit(&pWInfo->sWC, pLimit);
  if( pParse->nErr ) goto whereBeginError;

  /* Special case: WHERE terms that do not refer to any tables in the join
  ** (constant expressions). Evaluate each such term, and jump over all the
  ** generated code if the result is not true.  
  **
  ** Do not do this if the expression contains non-deterministic functions
  ** that are not within a sub-select. This is not strictly required, but
︙︙
Changes to test/joinH.test.
︙︙
48
49
50
51
52
53
54















55
56
57

do_execsql_test 2.1 {
  SELECT 'value!' FROM r3 FULL JOIN r4 ON (y=x);
} {value!}

do_execsql_test 2.2 {
  SELECT 'value!' FROM r3 FULL JOIN r4 ON (y=x) WHERE +y=55;
} {value!}

















finish_test








>
>
>
>
>
>
>
>
>
>
>
>
>
>
>




48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72

do_execsql_test 2.1 {
  SELECT 'value!' FROM r3 FULL JOIN r4 ON (y=x);
} {value!}

do_execsql_test 2.2 {
  SELECT 'value!' FROM r3 FULL JOIN r4 ON (y=x) WHERE +y=55;
} {value!}

#-----------------------------------------------------------
reset_db
do_execsql_test 3.1 {
  CREATE TABLE t0 (c0);
  CREATE TABLE t1 (c0);
  CREATE TABLE t2 (c0 , c1 , c2 , UNIQUE (c0), UNIQUE (c2 DESC));
  INSERT INTO t2 VALUES ('x', 'y', 'z');
  ANALYZE;
  CREATE VIEW v0(c0) AS SELECT FALSE;
}

do_catchsql_test 3.2 {
  SELECT * FROM t0 LEFT OUTER JOIN t1 ON v0.c0 INNER JOIN v0 INNER JOIN t2 ON (t2.c2 NOT NULL); 
} {1 {ON clause references tables to its right}}


finish_test